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1 /*
2  * Copyright (C) 2007 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.app;
18 
19 import android.annotation.ArrayRes;
20 import android.annotation.AttrRes;
21 import android.annotation.DrawableRes;
22 import android.annotation.StringRes;
23 import android.annotation.StyleRes;
24 import android.compat.annotation.UnsupportedAppUsage;
25 import android.content.Context;
26 import android.content.DialogInterface;
27 import android.content.res.ResourceId;
28 import android.content.res.Resources;
29 import android.database.Cursor;
30 import android.graphics.drawable.Drawable;
31 import android.os.Bundle;
32 import android.os.Message;
33 import android.text.Layout;
34 import android.text.method.MovementMethod;
35 import android.util.TypedValue;
36 import android.view.ContextThemeWrapper;
37 import android.view.KeyEvent;
38 import android.view.View;
39 import android.widget.AdapterView;
40 import android.widget.Button;
41 import android.widget.ListAdapter;
42 import android.widget.ListView;
43 
44 import com.android.internal.R;
45 import com.android.internal.app.AlertController;
46 
47 /**
48  * A subclass of Dialog that can display one, two or three buttons. If you only want to
49  * display a String in this dialog box, use the setMessage() method.  If you
50  * want to display a more complex view, look up the FrameLayout called "custom"
51  * and add your view to it:
52  *
53  * <pre>
54  * FrameLayout fl = findViewById(android.R.id.custom);
55  * fl.addView(myView, new LayoutParams(MATCH_PARENT, WRAP_CONTENT));
56  * </pre>
57  *
58  * <p>The AlertDialog class takes care of automatically setting
59  * {@link android.view.WindowManager.LayoutParams#FLAG_ALT_FOCUSABLE_IM
60  * WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM} for you based on whether
61  * any views in the dialog return true from {@link View#onCheckIsTextEditor()
62  * View.onCheckIsTextEditor()}.  Generally you want this set for a Dialog
63  * without text editors, so that it will be placed on top of the current
64  * input method UI.  You can modify this behavior by forcing the flag to your
65  * desired mode after calling {@link #onCreate}.
66  *
67  * <div class="special reference">
68  * <h3>Developer Guides</h3>
69  * <p>For more information about creating dialogs, read the
70  * <a href="{@docRoot}guide/topics/ui/dialogs.html">Dialogs</a> developer guide.</p>
71  * </div>
72  */
73 public class AlertDialog extends Dialog implements DialogInterface {
74     @UnsupportedAppUsage
75     private AlertController mAlert;
76 
77     /**
78      * Special theme constant for {@link #AlertDialog(Context, int)}: use
79      * the traditional (pre-Holo) alert dialog theme.
80      *
81      * @deprecated Use {@link android.R.style#Theme_Material_Dialog_Alert}.
82      */
83     @Deprecated
84     public static final int THEME_TRADITIONAL = 1;
85 
86     /**
87      * Special theme constant for {@link #AlertDialog(Context, int)}: use
88      * the holographic alert theme with a dark background.
89      *
90      * @deprecated Use {@link android.R.style#Theme_Material_Dialog_Alert}.
91      */
92     @Deprecated
93     public static final int THEME_HOLO_DARK = 2;
94 
95     /**
96      * Special theme constant for {@link #AlertDialog(Context, int)}: use
97      * the holographic alert theme with a light background.
98      *
99      * @deprecated Use {@link android.R.style#Theme_Material_Light_Dialog_Alert}.
100      */
101     @Deprecated
102     public static final int THEME_HOLO_LIGHT = 3;
103 
104     /**
105      * Special theme constant for {@link #AlertDialog(Context, int)}: use
106      * the device's default alert theme with a dark background.
107      *
108      * @deprecated Use {@link android.R.style#Theme_DeviceDefault_Dialog_Alert}.
109      */
110     @Deprecated
111     public static final int THEME_DEVICE_DEFAULT_DARK = 4;
112 
113     /**
114      * Special theme constant for {@link #AlertDialog(Context, int)}: use
115      * the device's default alert theme with a light background.
116      *
117      * @deprecated Use {@link android.R.style#Theme_DeviceDefault_Light_Dialog_Alert}.
118      */
119     @Deprecated
120     public static final int THEME_DEVICE_DEFAULT_LIGHT = 5;
121 
122     /**
123      * No layout hint.
124      * @hide
125      */
126     public static final int LAYOUT_HINT_NONE = 0;
127 
128     /**
129      * Hint layout to the side.
130      * @hide
131      */
132     public static final int LAYOUT_HINT_SIDE = 1;
133 
134     /**
135      * Creates an alert dialog that uses the default alert dialog theme.
136      * <p>
137      * The default alert dialog theme is defined by
138      * {@link android.R.attr#alertDialogTheme} within the parent
139      * {@code context}'s theme.
140      *
141      * @param context the parent context
142      * @see android.R.styleable#Theme_alertDialogTheme
143      */
AlertDialog(Context context)144     protected AlertDialog(Context context) {
145         this(context, 0);
146     }
147 
148     /**
149      * Creates an alert dialog that uses the default alert dialog theme and a
150      * custom cancel listener.
151      * <p>
152      * This is functionally identical to:
153      * <pre>
154      *     AlertDialog dialog = new AlertDialog(context);
155      *     alertDialog.setCancelable(cancelable);
156      *     alertDialog.setOnCancelListener(cancelListener);
157      * </pre>
158      * <p>
159      * The default alert dialog theme is defined by
160      * {@link android.R.attr#alertDialogTheme} within the parent
161      * {@code context}'s theme.
162      *
163      * @param context the parent context
164      * @see android.R.styleable#Theme_alertDialogTheme
165      */
AlertDialog(Context context, boolean cancelable, OnCancelListener cancelListener)166     protected AlertDialog(Context context, boolean cancelable, OnCancelListener cancelListener) {
167         this(context, 0);
168 
169         setCancelable(cancelable);
170         setOnCancelListener(cancelListener);
171     }
172 
173     /**
174      * Creates an alert dialog that uses an explicit theme resource.
175      * <p>
176      * The specified theme resource ({@code themeResId}) is applied on top of
177      * the parent {@code context}'s theme. It may be specified as a style
178      * resource containing a fully-populated theme, such as
179      * {@link android.R.style#Theme_Material_Dialog}, to replace all attributes
180      * in the parent {@code context}'s theme including primary and accent
181      * colors.
182      * <p>
183      * To preserve attributes such as primary and accent colors, the
184      * {@code themeResId} may instead be specified as an overlay theme such as
185      * {@link android.R.style#ThemeOverlay_Material_Dialog}. This will override
186      * only the window attributes necessary to style the alert window as a
187      * dialog.
188      * <p>
189      * Alternatively, the {@code themeResId} may be specified as {@code 0} to
190      * use the parent {@code context}'s resolved value for
191      * {@link android.R.attr#alertDialogTheme}.
192      *
193      * @param context the parent context
194      * @param themeResId the resource ID of the theme against which to inflate
195      *                   this dialog, or {@code 0} to use the parent
196      *                   {@code context}'s default alert dialog theme
197      * @see android.R.styleable#Theme_alertDialogTheme
198      */
AlertDialog(Context context, @StyleRes int themeResId)199     protected AlertDialog(Context context, @StyleRes int themeResId) {
200         this(context, themeResId, true);
201     }
202 
AlertDialog(Context context, @StyleRes int themeResId, boolean createContextThemeWrapper)203     AlertDialog(Context context, @StyleRes int themeResId, boolean createContextThemeWrapper) {
204         super(context, createContextThemeWrapper ? resolveDialogTheme(context, themeResId) : 0,
205                 createContextThemeWrapper);
206 
207         mWindow.alwaysReadCloseOnTouchAttr();
208         mAlert = AlertController.create(getContext(), this, getWindow());
209     }
210 
resolveDialogTheme(Context context, @StyleRes int themeResId)211     static @StyleRes int resolveDialogTheme(Context context, @StyleRes int themeResId) {
212         if (themeResId == THEME_TRADITIONAL) {
213             return R.style.Theme_Dialog_Alert;
214         } else if (themeResId == THEME_HOLO_DARK) {
215             return R.style.Theme_Holo_Dialog_Alert;
216         } else if (themeResId == THEME_HOLO_LIGHT) {
217             return R.style.Theme_Holo_Light_Dialog_Alert;
218         } else if (themeResId == THEME_DEVICE_DEFAULT_DARK) {
219             return R.style.Theme_DeviceDefault_Dialog_Alert;
220         } else if (themeResId == THEME_DEVICE_DEFAULT_LIGHT) {
221             return R.style.Theme_DeviceDefault_Light_Dialog_Alert;
222         } else if (ResourceId.isValid(themeResId)) {
223             // start of real resource IDs.
224             return themeResId;
225         } else {
226             final TypedValue outValue = new TypedValue();
227             context.getTheme().resolveAttribute(R.attr.alertDialogTheme, outValue, true);
228             return outValue.resourceId;
229         }
230     }
231 
232     /**
233      * Gets one of the buttons used in the dialog. Returns null if the specified
234      * button does not exist or the dialog has not yet been fully created (for
235      * example, via {@link #show()} or {@link #create()}).
236      *
237      * @param whichButton The identifier of the button that should be returned.
238      *            For example, this can be
239      *            {@link DialogInterface#BUTTON_POSITIVE}.
240      * @return The button from the dialog, or null if a button does not exist.
241      */
getButton(int whichButton)242     public Button getButton(int whichButton) {
243         return mAlert.getButton(whichButton);
244     }
245 
246     /**
247      * Gets the list view used in the dialog.
248      *
249      * @return The {@link ListView} from the dialog.
250      */
getListView()251     public ListView getListView() {
252         return mAlert.getListView();
253     }
254 
255     @Override
setTitle(CharSequence title)256     public void setTitle(CharSequence title) {
257         super.setTitle(title);
258         mAlert.setTitle(title);
259     }
260 
261     /**
262      * @see Builder#setCustomTitle(View)
263      */
setCustomTitle(View customTitleView)264     public void setCustomTitle(View customTitleView) {
265         mAlert.setCustomTitle(customTitleView);
266     }
267 
setMessage(CharSequence message)268     public void setMessage(CharSequence message) {
269         mAlert.setMessage(message);
270     }
271 
272     /** @hide */
setMessageMovementMethod(MovementMethod movementMethod)273     public void setMessageMovementMethod(MovementMethod movementMethod) {
274         mAlert.setMessageMovementMethod(movementMethod);
275     }
276 
277     /** @hide */
setMessageHyphenationFrequency( @ayout.HyphenationFrequency int hyphenationFrequency)278     public void setMessageHyphenationFrequency(
279             @Layout.HyphenationFrequency int hyphenationFrequency) {
280         mAlert.setMessageHyphenationFrequency(hyphenationFrequency);
281     }
282 
283     /**
284      * Set the view to display in that dialog.
285      */
setView(View view)286     public void setView(View view) {
287         mAlert.setView(view);
288     }
289 
290     /**
291      * Set the view to display in that dialog, specifying the spacing to appear around that
292      * view.
293      *
294      * @param view The view to show in the content area of the dialog
295      * @param viewSpacingLeft Extra space to appear to the left of {@code view}
296      * @param viewSpacingTop Extra space to appear above {@code view}
297      * @param viewSpacingRight Extra space to appear to the right of {@code view}
298      * @param viewSpacingBottom Extra space to appear below {@code view}
299      */
setView(View view, int viewSpacingLeft, int viewSpacingTop, int viewSpacingRight, int viewSpacingBottom)300     public void setView(View view, int viewSpacingLeft, int viewSpacingTop, int viewSpacingRight,
301             int viewSpacingBottom) {
302         mAlert.setView(view, viewSpacingLeft, viewSpacingTop, viewSpacingRight, viewSpacingBottom);
303     }
304 
305     /**
306      * Internal api to allow hinting for the best button panel layout.
307      * @hide
308      */
setButtonPanelLayoutHint(int layoutHint)309     void setButtonPanelLayoutHint(int layoutHint) {
310         mAlert.setButtonPanelLayoutHint(layoutHint);
311     }
312 
313     /**
314      * Set a message to be sent when a button is pressed.
315      *
316      * @param whichButton Which button to set the message for, can be one of
317      *            {@link DialogInterface#BUTTON_POSITIVE},
318      *            {@link DialogInterface#BUTTON_NEGATIVE}, or
319      *            {@link DialogInterface#BUTTON_NEUTRAL}
320      * @param text The text to display in positive button.
321      * @param msg The {@link Message} to be sent when clicked.
322      */
setButton(int whichButton, CharSequence text, Message msg)323     public void setButton(int whichButton, CharSequence text, Message msg) {
324         mAlert.setButton(whichButton, text, null, msg);
325     }
326 
327     /**
328      * Set a listener to be invoked when the specified button of the dialog is pressed.
329      *
330      * @param whichButton Which button to set the listener on, can be one of
331      *            {@link DialogInterface#BUTTON_POSITIVE},
332      *            {@link DialogInterface#BUTTON_NEGATIVE}, or
333      *            {@link DialogInterface#BUTTON_NEUTRAL}
334      * @param text The text to display in positive button.
335      * @param listener The {@link DialogInterface.OnClickListener} to use.
336      */
setButton(int whichButton, CharSequence text, OnClickListener listener)337     public void setButton(int whichButton, CharSequence text, OnClickListener listener) {
338         mAlert.setButton(whichButton, text, listener, null);
339     }
340 
341     /**
342      * @deprecated Use {@link #setButton(int, CharSequence, Message)} with
343      *             {@link DialogInterface#BUTTON_POSITIVE}.
344      */
345     @Deprecated
setButton(CharSequence text, Message msg)346     public void setButton(CharSequence text, Message msg) {
347         setButton(BUTTON_POSITIVE, text, msg);
348     }
349 
350     /**
351      * @deprecated Use {@link #setButton(int, CharSequence, Message)} with
352      *             {@link DialogInterface#BUTTON_NEGATIVE}.
353      */
354     @Deprecated
setButton2(CharSequence text, Message msg)355     public void setButton2(CharSequence text, Message msg) {
356         setButton(BUTTON_NEGATIVE, text, msg);
357     }
358 
359     /**
360      * @deprecated Use {@link #setButton(int, CharSequence, Message)} with
361      *             {@link DialogInterface#BUTTON_NEUTRAL}.
362      */
363     @Deprecated
setButton3(CharSequence text, Message msg)364     public void setButton3(CharSequence text, Message msg) {
365         setButton(BUTTON_NEUTRAL, text, msg);
366     }
367 
368     /**
369      * Set a listener to be invoked when button 1 of the dialog is pressed.
370      *
371      * @param text The text to display in button 1.
372      * @param listener The {@link DialogInterface.OnClickListener} to use.
373      * @deprecated Use
374      *             {@link #setButton(int, CharSequence, android.content.DialogInterface.OnClickListener)}
375      *             with {@link DialogInterface#BUTTON_POSITIVE}
376      */
377     @Deprecated
setButton(CharSequence text, final OnClickListener listener)378     public void setButton(CharSequence text, final OnClickListener listener) {
379         setButton(BUTTON_POSITIVE, text, listener);
380     }
381 
382     /**
383      * Set a listener to be invoked when button 2 of the dialog is pressed.
384      * @param text The text to display in button 2.
385      * @param listener The {@link DialogInterface.OnClickListener} to use.
386      * @deprecated Use
387      *             {@link #setButton(int, CharSequence, android.content.DialogInterface.OnClickListener)}
388      *             with {@link DialogInterface#BUTTON_NEGATIVE}
389      */
390     @Deprecated
setButton2(CharSequence text, final OnClickListener listener)391     public void setButton2(CharSequence text, final OnClickListener listener) {
392         setButton(BUTTON_NEGATIVE, text, listener);
393     }
394 
395     /**
396      * Set a listener to be invoked when button 3 of the dialog is pressed.
397      * @param text The text to display in button 3.
398      * @param listener The {@link DialogInterface.OnClickListener} to use.
399      * @deprecated Use
400      *             {@link #setButton(int, CharSequence, android.content.DialogInterface.OnClickListener)}
401      *             with {@link DialogInterface#BUTTON_NEUTRAL}
402      */
403     @Deprecated
setButton3(CharSequence text, final OnClickListener listener)404     public void setButton3(CharSequence text, final OnClickListener listener) {
405         setButton(BUTTON_NEUTRAL, text, listener);
406     }
407 
408     /**
409      * Set resId to 0 if you don't want an icon.
410      * @param resId the resourceId of the drawable to use as the icon or 0
411      * if you don't want an icon.
412      */
setIcon(@rawableRes int resId)413     public void setIcon(@DrawableRes int resId) {
414         mAlert.setIcon(resId);
415     }
416 
setIcon(Drawable icon)417     public void setIcon(Drawable icon) {
418         mAlert.setIcon(icon);
419     }
420 
421     /**
422      * Set an icon as supplied by a theme attribute. e.g. android.R.attr.alertDialogIcon
423      *
424      * @param attrId ID of a theme attribute that points to a drawable resource.
425      */
setIconAttribute(@ttrRes int attrId)426     public void setIconAttribute(@AttrRes int attrId) {
427         TypedValue out = new TypedValue();
428         mContext.getTheme().resolveAttribute(attrId, out, true);
429         mAlert.setIcon(out.resourceId);
430     }
431 
setInverseBackgroundForced(boolean forceInverseBackground)432     public void setInverseBackgroundForced(boolean forceInverseBackground) {
433         mAlert.setInverseBackgroundForced(forceInverseBackground);
434     }
435 
436     @Override
onCreate(Bundle savedInstanceState)437     protected void onCreate(Bundle savedInstanceState) {
438         super.onCreate(savedInstanceState);
439         mAlert.installContent();
440     }
441 
442     @Override
onKeyDown(int keyCode, KeyEvent event)443     public boolean onKeyDown(int keyCode, KeyEvent event) {
444         if (mAlert.onKeyDown(keyCode, event)) return true;
445         return super.onKeyDown(keyCode, event);
446     }
447 
448     @Override
onKeyUp(int keyCode, KeyEvent event)449     public boolean onKeyUp(int keyCode, KeyEvent event) {
450         if (mAlert.onKeyUp(keyCode, event)) return true;
451         return super.onKeyUp(keyCode, event);
452     }
453 
454     public static class Builder {
455         @UnsupportedAppUsage
456         private final AlertController.AlertParams P;
457 
458         /**
459          * Creates a builder for an alert dialog that uses the default alert
460          * dialog theme.
461          * <p>
462          * The default alert dialog theme is defined by
463          * {@link android.R.attr#alertDialogTheme} within the parent
464          * {@code context}'s theme.
465          *
466          * @param context the parent context
467          */
Builder(Context context)468         public Builder(Context context) {
469             this(context, resolveDialogTheme(context, Resources.ID_NULL));
470         }
471 
472         /**
473          * Creates a builder for an alert dialog that uses an explicit theme
474          * resource.
475          * <p>
476          * The specified theme resource ({@code themeResId}) is applied on top
477          * of the parent {@code context}'s theme. It may be specified as a
478          * style resource containing a fully-populated theme, such as
479          * {@link android.R.style#Theme_Material_Dialog}, to replace all
480          * attributes in the parent {@code context}'s theme including primary
481          * and accent colors.
482          * <p>
483          * To preserve attributes such as primary and accent colors, the
484          * {@code themeResId} may instead be specified as an overlay theme such
485          * as {@link android.R.style#ThemeOverlay_Material_Dialog}. This will
486          * override only the window attributes necessary to style the alert
487          * window as a dialog.
488          * <p>
489          * Alternatively, the {@code themeResId} may be specified as {@code 0}
490          * to use the parent {@code context}'s resolved value for
491          * {@link android.R.attr#alertDialogTheme}.
492          *
493          * @param context the parent context
494          * @param themeResId the resource ID of the theme against which to inflate
495          *                   this dialog, or {@code 0} to use the parent
496          *                   {@code context}'s default alert dialog theme
497          */
Builder(Context context, int themeResId)498         public Builder(Context context, int themeResId) {
499             P = new AlertController.AlertParams(new ContextThemeWrapper(
500                     context, resolveDialogTheme(context, themeResId)));
501         }
502 
503         /**
504          * Returns a {@link Context} with the appropriate theme for dialogs created by this Builder.
505          * Applications should use this Context for obtaining LayoutInflaters for inflating views
506          * that will be used in the resulting dialogs, as it will cause views to be inflated with
507          * the correct theme.
508          *
509          * @return A Context for built Dialogs.
510          */
getContext()511         public Context getContext() {
512             return P.mContext;
513         }
514 
515         /**
516          * Set the title using the given resource id.
517          *
518          * @return This Builder object to allow for chaining of calls to set methods
519          */
setTitle(@tringRes int titleId)520         public Builder setTitle(@StringRes int titleId) {
521             P.mTitle = P.mContext.getText(titleId);
522             return this;
523         }
524 
525         /**
526          * Set the title displayed in the {@link Dialog}.
527          *
528          * @return This Builder object to allow for chaining of calls to set methods
529          */
setTitle(CharSequence title)530         public Builder setTitle(CharSequence title) {
531             P.mTitle = title;
532             return this;
533         }
534 
535         /**
536          * Set the title using the custom view {@code customTitleView}.
537          * <p>
538          * The methods {@link #setTitle(int)} and {@link #setIcon(int)} should
539          * be sufficient for most titles, but this is provided if the title
540          * needs more customization. Using this will replace the title and icon
541          * set via the other methods.
542          * <p>
543          * <strong>Note:</strong> To ensure consistent styling, the custom view
544          * should be inflated or constructed using the alert dialog's themed
545          * context obtained via {@link #getContext()}.
546          *
547          * @param customTitleView the custom view to use as the title
548          * @return this Builder object to allow for chaining of calls to set
549          *         methods
550          */
setCustomTitle(View customTitleView)551         public Builder setCustomTitle(View customTitleView) {
552             P.mCustomTitleView = customTitleView;
553             return this;
554         }
555 
556         /**
557          * Set the message to display using the given resource id.
558          *
559          * @return This Builder object to allow for chaining of calls to set methods
560          */
setMessage(@tringRes int messageId)561         public Builder setMessage(@StringRes int messageId) {
562             P.mMessage = P.mContext.getText(messageId);
563             return this;
564         }
565 
566         /**
567          * Set the message to display.
568           *
569          * @return This Builder object to allow for chaining of calls to set methods
570          */
setMessage(CharSequence message)571         public Builder setMessage(CharSequence message) {
572             P.mMessage = message;
573             return this;
574         }
575 
576         /**
577          * Set the resource id of the {@link Drawable} to be used in the title.
578          * <p>
579          * Takes precedence over values set using {@link #setIcon(Drawable)}.
580          *
581          * @return This Builder object to allow for chaining of calls to set methods
582          */
setIcon(@rawableRes int iconId)583         public Builder setIcon(@DrawableRes int iconId) {
584             P.mIconId = iconId;
585             return this;
586         }
587 
588         /**
589          * Set the {@link Drawable} to be used in the title.
590          * <p>
591          * <strong>Note:</strong> To ensure consistent styling, the drawable
592          * should be inflated or constructed using the alert dialog's themed
593          * context obtained via {@link #getContext()}.
594          *
595          * @return this Builder object to allow for chaining of calls to set
596          *         methods
597          */
setIcon(Drawable icon)598         public Builder setIcon(Drawable icon) {
599             P.mIcon = icon;
600             return this;
601         }
602 
603         /**
604          * Set an icon as supplied by a theme attribute. e.g.
605          * {@link android.R.attr#alertDialogIcon}.
606          * <p>
607          * Takes precedence over values set using {@link #setIcon(int)} or
608          * {@link #setIcon(Drawable)}.
609          *
610          * @param attrId ID of a theme attribute that points to a drawable resource.
611          */
setIconAttribute(@ttrRes int attrId)612         public Builder setIconAttribute(@AttrRes int attrId) {
613             TypedValue out = new TypedValue();
614             P.mContext.getTheme().resolveAttribute(attrId, out, true);
615             P.mIconId = out.resourceId;
616             return this;
617         }
618 
619         /**
620          * Set a listener to be invoked when the positive button of the dialog is pressed.
621          * @param textId The resource id of the text to display in the positive button
622          * @param listener The {@link DialogInterface.OnClickListener} to use.
623          *
624          * @return This Builder object to allow for chaining of calls to set methods
625          */
setPositiveButton(@tringRes int textId, final OnClickListener listener)626         public Builder setPositiveButton(@StringRes int textId, final OnClickListener listener) {
627             P.mPositiveButtonText = P.mContext.getText(textId);
628             P.mPositiveButtonListener = listener;
629             return this;
630         }
631 
632         /**
633          * Set a listener to be invoked when the positive button of the dialog is pressed.
634          * @param text The text to display in the positive button
635          * @param listener The {@link DialogInterface.OnClickListener} to use.
636          *
637          * @return This Builder object to allow for chaining of calls to set methods
638          */
setPositiveButton(CharSequence text, final OnClickListener listener)639         public Builder setPositiveButton(CharSequence text, final OnClickListener listener) {
640             P.mPositiveButtonText = text;
641             P.mPositiveButtonListener = listener;
642             return this;
643         }
644 
645         /**
646          * Set a listener to be invoked when the negative button of the dialog is pressed.
647          * @param textId The resource id of the text to display in the negative button
648          * @param listener The {@link DialogInterface.OnClickListener} to use.
649          *
650          * @return This Builder object to allow for chaining of calls to set methods
651          */
setNegativeButton(@tringRes int textId, final OnClickListener listener)652         public Builder setNegativeButton(@StringRes int textId, final OnClickListener listener) {
653             P.mNegativeButtonText = P.mContext.getText(textId);
654             P.mNegativeButtonListener = listener;
655             return this;
656         }
657 
658         /**
659          * Set a listener to be invoked when the negative button of the dialog is pressed.
660          * @param text The text to display in the negative button
661          * @param listener The {@link DialogInterface.OnClickListener} to use.
662          *
663          * @return This Builder object to allow for chaining of calls to set methods
664          */
setNegativeButton(CharSequence text, final OnClickListener listener)665         public Builder setNegativeButton(CharSequence text, final OnClickListener listener) {
666             P.mNegativeButtonText = text;
667             P.mNegativeButtonListener = listener;
668             return this;
669         }
670 
671         /**
672          * Set a listener to be invoked when the neutral button of the dialog is pressed.
673          * @param textId The resource id of the text to display in the neutral button
674          * @param listener The {@link DialogInterface.OnClickListener} to use.
675          *
676          * @return This Builder object to allow for chaining of calls to set methods
677          */
setNeutralButton(@tringRes int textId, final OnClickListener listener)678         public Builder setNeutralButton(@StringRes int textId, final OnClickListener listener) {
679             P.mNeutralButtonText = P.mContext.getText(textId);
680             P.mNeutralButtonListener = listener;
681             return this;
682         }
683 
684         /**
685          * Set a listener to be invoked when the neutral button of the dialog is pressed.
686          * @param text The text to display in the neutral button
687          * @param listener The {@link DialogInterface.OnClickListener} to use.
688          *
689          * @return This Builder object to allow for chaining of calls to set methods
690          */
setNeutralButton(CharSequence text, final OnClickListener listener)691         public Builder setNeutralButton(CharSequence text, final OnClickListener listener) {
692             P.mNeutralButtonText = text;
693             P.mNeutralButtonListener = listener;
694             return this;
695         }
696 
697         /**
698          * Sets whether the dialog is cancelable or not.  Default is true.
699          *
700          * @return This Builder object to allow for chaining of calls to set methods
701          */
setCancelable(boolean cancelable)702         public Builder setCancelable(boolean cancelable) {
703             P.mCancelable = cancelable;
704             return this;
705         }
706 
707         /**
708          * Sets the callback that will be called if the dialog is canceled.
709          *
710          * <p>Even in a cancelable dialog, the dialog may be dismissed for reasons other than
711          * being canceled or one of the supplied choices being selected.
712          * If you are interested in listening for all cases where the dialog is dismissed
713          * and not just when it is canceled, see
714          * {@link #setOnDismissListener(android.content.DialogInterface.OnDismissListener) setOnDismissListener}.</p>
715          * @see #setCancelable(boolean)
716          * @see #setOnDismissListener(android.content.DialogInterface.OnDismissListener)
717          *
718          * @return This Builder object to allow for chaining of calls to set methods
719          */
setOnCancelListener(OnCancelListener onCancelListener)720         public Builder setOnCancelListener(OnCancelListener onCancelListener) {
721             P.mOnCancelListener = onCancelListener;
722             return this;
723         }
724 
725         /**
726          * Sets the callback that will be called when the dialog is dismissed for any reason.
727          *
728          * @return This Builder object to allow for chaining of calls to set methods
729          */
setOnDismissListener(OnDismissListener onDismissListener)730         public Builder setOnDismissListener(OnDismissListener onDismissListener) {
731             P.mOnDismissListener = onDismissListener;
732             return this;
733         }
734 
735         /**
736          * Sets the callback that will be called if a key is dispatched to the dialog.
737          *
738          * @return This Builder object to allow for chaining of calls to set methods
739          */
setOnKeyListener(OnKeyListener onKeyListener)740         public Builder setOnKeyListener(OnKeyListener onKeyListener) {
741             P.mOnKeyListener = onKeyListener;
742             return this;
743         }
744 
745         /**
746          * Set a list of items to be displayed in the dialog as the content, you will be notified of the
747          * selected item via the supplied listener. This should be an array type i.e. R.array.foo
748          *
749          * @return This Builder object to allow for chaining of calls to set methods
750          */
setItems(@rrayRes int itemsId, final OnClickListener listener)751         public Builder setItems(@ArrayRes int itemsId, final OnClickListener listener) {
752             P.mItems = P.mContext.getResources().getTextArray(itemsId);
753             P.mOnClickListener = listener;
754             return this;
755         }
756 
757         /**
758          * Set a list of items to be displayed in the dialog as the content, you will be notified of the
759          * selected item via the supplied listener.
760          *
761          * @return This Builder object to allow for chaining of calls to set methods
762          */
setItems(CharSequence[] items, final OnClickListener listener)763         public Builder setItems(CharSequence[] items, final OnClickListener listener) {
764             P.mItems = items;
765             P.mOnClickListener = listener;
766             return this;
767         }
768 
769         /**
770          * Set a list of items, which are supplied by the given {@link ListAdapter}, to be
771          * displayed in the dialog as the content, you will be notified of the
772          * selected item via the supplied listener.
773          *
774          * @param adapter The {@link ListAdapter} to supply the list of items
775          * @param listener The listener that will be called when an item is clicked.
776          *
777          * @return This Builder object to allow for chaining of calls to set methods
778          */
setAdapter(final ListAdapter adapter, final OnClickListener listener)779         public Builder setAdapter(final ListAdapter adapter, final OnClickListener listener) {
780             P.mAdapter = adapter;
781             P.mOnClickListener = listener;
782             return this;
783         }
784 
785         /**
786          * Set a list of items, which are supplied by the given {@link Cursor}, to be
787          * displayed in the dialog as the content, you will be notified of the
788          * selected item via the supplied listener.
789          *
790          * @param cursor The {@link Cursor} to supply the list of items
791          * @param listener The listener that will be called when an item is clicked.
792          * @param labelColumn The column name on the cursor containing the string to display
793          *          in the label.
794          *
795          * @return This Builder object to allow for chaining of calls to set methods
796          */
setCursor(final Cursor cursor, final OnClickListener listener, String labelColumn)797         public Builder setCursor(final Cursor cursor, final OnClickListener listener,
798                 String labelColumn) {
799             P.mCursor = cursor;
800             P.mLabelColumn = labelColumn;
801             P.mOnClickListener = listener;
802             return this;
803         }
804 
805         /**
806          * Set a list of items to be displayed in the dialog as the content,
807          * you will be notified of the selected item via the supplied listener.
808          * This should be an array type, e.g. R.array.foo. The list will have
809          * a check mark displayed to the right of the text for each checked
810          * item. Clicking on an item in the list will not dismiss the dialog.
811          * Clicking on a button will dismiss the dialog.
812          *
813          * @param itemsId the resource id of an array i.e. R.array.foo
814          * @param checkedItems specifies which items are checked. It should be null in which case no
815          *        items are checked. If non null it must be exactly the same length as the array of
816          *        items.
817          * @param listener notified when an item on the list is clicked. The dialog will not be
818          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
819          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
820          *
821          * @return This Builder object to allow for chaining of calls to set methods
822          */
setMultiChoiceItems(@rrayRes int itemsId, boolean[] checkedItems, final OnMultiChoiceClickListener listener)823         public Builder setMultiChoiceItems(@ArrayRes int itemsId, boolean[] checkedItems,
824                 final OnMultiChoiceClickListener listener) {
825             P.mItems = P.mContext.getResources().getTextArray(itemsId);
826             P.mOnCheckboxClickListener = listener;
827             P.mCheckedItems = checkedItems;
828             P.mIsMultiChoice = true;
829             return this;
830         }
831 
832         /**
833          * Set a list of items to be displayed in the dialog as the content,
834          * you will be notified of the selected item via the supplied listener.
835          * The list will have a check mark displayed to the right of the text
836          * for each checked item. Clicking on an item in the list will not
837          * dismiss the dialog. Clicking on a button will dismiss the dialog.
838          *
839          * @param items the text of the items to be displayed in the list.
840          * @param checkedItems specifies which items are checked. It should be null in which case no
841          *        items are checked. If non null it must be exactly the same length as the array of
842          *        items.
843          * @param listener notified when an item on the list is clicked. The dialog will not be
844          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
845          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
846          *
847          * @return This Builder object to allow for chaining of calls to set methods
848          */
setMultiChoiceItems(CharSequence[] items, boolean[] checkedItems, final OnMultiChoiceClickListener listener)849         public Builder setMultiChoiceItems(CharSequence[] items, boolean[] checkedItems,
850                 final OnMultiChoiceClickListener listener) {
851             P.mItems = items;
852             P.mOnCheckboxClickListener = listener;
853             P.mCheckedItems = checkedItems;
854             P.mIsMultiChoice = true;
855             return this;
856         }
857 
858         /**
859          * Set a list of items to be displayed in the dialog as the content,
860          * you will be notified of the selected item via the supplied listener.
861          * The list will have a check mark displayed to the right of the text
862          * for each checked item. Clicking on an item in the list will not
863          * dismiss the dialog. Clicking on a button will dismiss the dialog.
864          *
865          * @param cursor the cursor used to provide the items.
866          * @param isCheckedColumn specifies the column name on the cursor to use to determine
867          *        whether a checkbox is checked or not. It must return an integer value where 1
868          *        means checked and 0 means unchecked.
869          * @param labelColumn The column name on the cursor containing the string to display in the
870          *        label.
871          * @param listener notified when an item on the list is clicked. The dialog will not be
872          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
873          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
874          *
875          * @return This Builder object to allow for chaining of calls to set methods
876          */
setMultiChoiceItems(Cursor cursor, String isCheckedColumn, String labelColumn, final OnMultiChoiceClickListener listener)877         public Builder setMultiChoiceItems(Cursor cursor, String isCheckedColumn, String labelColumn,
878                 final OnMultiChoiceClickListener listener) {
879             P.mCursor = cursor;
880             P.mOnCheckboxClickListener = listener;
881             P.mIsCheckedColumn = isCheckedColumn;
882             P.mLabelColumn = labelColumn;
883             P.mIsMultiChoice = true;
884             return this;
885         }
886 
887         /**
888          * Set a list of items to be displayed in the dialog as the content, you will be notified of
889          * the selected item via the supplied listener. This should be an array type i.e.
890          * R.array.foo The list will have a check mark displayed to the right of the text for the
891          * checked item. Clicking on an item in the list will not dismiss the dialog. Clicking on a
892          * button will dismiss the dialog.
893          *
894          * @param itemsId the resource id of an array i.e. R.array.foo
895          * @param checkedItem specifies which item is checked. If -1 no items are checked.
896          * @param listener notified when an item on the list is clicked. The dialog will not be
897          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
898          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
899          *
900          * @return This Builder object to allow for chaining of calls to set methods
901          */
setSingleChoiceItems(@rrayRes int itemsId, int checkedItem, final OnClickListener listener)902         public Builder setSingleChoiceItems(@ArrayRes int itemsId, int checkedItem,
903                 final OnClickListener listener) {
904             P.mItems = P.mContext.getResources().getTextArray(itemsId);
905             P.mOnClickListener = listener;
906             P.mCheckedItem = checkedItem;
907             P.mIsSingleChoice = true;
908             return this;
909         }
910 
911         /**
912          * Set a list of items to be displayed in the dialog as the content, you will be notified of
913          * the selected item via the supplied listener. The list will have a check mark displayed to
914          * the right of the text for the checked item. Clicking on an item in the list will not
915          * dismiss the dialog. Clicking on a button will dismiss the dialog.
916          *
917          * @param cursor the cursor to retrieve the items from.
918          * @param checkedItem specifies which item is checked. If -1 no items are checked.
919          * @param labelColumn The column name on the cursor containing the string to display in the
920          *        label.
921          * @param listener notified when an item on the list is clicked. The dialog will not be
922          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
923          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
924          *
925          * @return This Builder object to allow for chaining of calls to set methods
926          */
setSingleChoiceItems(Cursor cursor, int checkedItem, String labelColumn, final OnClickListener listener)927         public Builder setSingleChoiceItems(Cursor cursor, int checkedItem, String labelColumn,
928                 final OnClickListener listener) {
929             P.mCursor = cursor;
930             P.mOnClickListener = listener;
931             P.mCheckedItem = checkedItem;
932             P.mLabelColumn = labelColumn;
933             P.mIsSingleChoice = true;
934             return this;
935         }
936 
937         /**
938          * Set a list of items to be displayed in the dialog as the content, you will be notified of
939          * the selected item via the supplied listener. The list will have a check mark displayed to
940          * the right of the text for the checked item. Clicking on an item in the list will not
941          * dismiss the dialog. Clicking on a button will dismiss the dialog.
942          *
943          * @param items the items to be displayed.
944          * @param checkedItem specifies which item is checked. If -1 no items are checked.
945          * @param listener notified when an item on the list is clicked. The dialog will not be
946          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
947          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
948          *
949          * @return This Builder object to allow for chaining of calls to set methods
950          */
setSingleChoiceItems(CharSequence[] items, int checkedItem, final OnClickListener listener)951         public Builder setSingleChoiceItems(CharSequence[] items, int checkedItem, final OnClickListener listener) {
952             P.mItems = items;
953             P.mOnClickListener = listener;
954             P.mCheckedItem = checkedItem;
955             P.mIsSingleChoice = true;
956             return this;
957         }
958 
959         /**
960          * Set a list of items to be displayed in the dialog as the content, you will be notified of
961          * the selected item via the supplied listener. The list will have a check mark displayed to
962          * the right of the text for the checked item. Clicking on an item in the list will not
963          * dismiss the dialog. Clicking on a button will dismiss the dialog.
964          *
965          * @param adapter The {@link ListAdapter} to supply the list of items
966          * @param checkedItem specifies which item is checked. If -1 no items are checked.
967          * @param listener notified when an item on the list is clicked. The dialog will not be
968          *        dismissed when an item is clicked. It will only be dismissed if clicked on a
969          *        button, if no buttons are supplied it's up to the user to dismiss the dialog.
970          *
971          * @return This Builder object to allow for chaining of calls to set methods
972          */
setSingleChoiceItems(ListAdapter adapter, int checkedItem, final OnClickListener listener)973         public Builder setSingleChoiceItems(ListAdapter adapter, int checkedItem, final OnClickListener listener) {
974             P.mAdapter = adapter;
975             P.mOnClickListener = listener;
976             P.mCheckedItem = checkedItem;
977             P.mIsSingleChoice = true;
978             return this;
979         }
980 
981         /**
982          * Sets a listener to be invoked when an item in the list is selected.
983          *
984          * @param listener the listener to be invoked
985          * @return this Builder object to allow for chaining of calls to set methods
986          * @see AdapterView#setOnItemSelectedListener(android.widget.AdapterView.OnItemSelectedListener)
987          */
setOnItemSelectedListener(final AdapterView.OnItemSelectedListener listener)988         public Builder setOnItemSelectedListener(final AdapterView.OnItemSelectedListener listener) {
989             P.mOnItemSelectedListener = listener;
990             return this;
991         }
992 
993         /**
994          * Set a custom view resource to be the contents of the Dialog. The
995          * resource will be inflated, adding all top-level views to the screen.
996          *
997          * @param layoutResId Resource ID to be inflated.
998          * @return this Builder object to allow for chaining of calls to set
999          *         methods
1000          */
setView(int layoutResId)1001         public Builder setView(int layoutResId) {
1002             P.mView = null;
1003             P.mViewLayoutResId = layoutResId;
1004             P.mViewSpacingSpecified = false;
1005             return this;
1006         }
1007 
1008         /**
1009          * Sets a custom view to be the contents of the alert dialog.
1010          * <p>
1011          * When using a pre-Holo theme, if the supplied view is an instance of
1012          * a {@link ListView} then the light background will be used.
1013          * <p>
1014          * <strong>Note:</strong> To ensure consistent styling, the custom view
1015          * should be inflated or constructed using the alert dialog's themed
1016          * context obtained via {@link #getContext()}.
1017          *
1018          * @param view the view to use as the contents of the alert dialog
1019          * @return this Builder object to allow for chaining of calls to set
1020          *         methods
1021          */
setView(View view)1022         public Builder setView(View view) {
1023             P.mView = view;
1024             P.mViewLayoutResId = 0;
1025             P.mViewSpacingSpecified = false;
1026             return this;
1027         }
1028 
1029         /**
1030          * Sets a custom view to be the contents of the alert dialog and
1031          * specifies additional padding around that view.
1032          * <p>
1033          * When using a pre-Holo theme, if the supplied view is an instance of
1034          * a {@link ListView} then the light background will be used.
1035          * <p>
1036          * <strong>Note:</strong> To ensure consistent styling, the custom view
1037          * should be inflated or constructed using the alert dialog's themed
1038          * context obtained via {@link #getContext()}.
1039          *
1040          * @param view the view to use as the contents of the alert dialog
1041          * @param viewSpacingLeft spacing between the left edge of the view and
1042          *                        the dialog frame
1043          * @param viewSpacingTop spacing between the top edge of the view and
1044          *                       the dialog frame
1045          * @param viewSpacingRight spacing between the right edge of the view
1046          *                         and the dialog frame
1047          * @param viewSpacingBottom spacing between the bottom edge of the view
1048          *                          and the dialog frame
1049          * @return this Builder object to allow for chaining of calls to set
1050          *         methods
1051          *
1052          * @hide Remove once the framework usages have been replaced.
1053          * @deprecated Set the padding on the view itself.
1054          */
1055         @Deprecated
1056         @UnsupportedAppUsage
setView(View view, int viewSpacingLeft, int viewSpacingTop, int viewSpacingRight, int viewSpacingBottom)1057         public Builder setView(View view, int viewSpacingLeft, int viewSpacingTop,
1058                 int viewSpacingRight, int viewSpacingBottom) {
1059             P.mView = view;
1060             P.mViewLayoutResId = 0;
1061             P.mViewSpacingSpecified = true;
1062             P.mViewSpacingLeft = viewSpacingLeft;
1063             P.mViewSpacingTop = viewSpacingTop;
1064             P.mViewSpacingRight = viewSpacingRight;
1065             P.mViewSpacingBottom = viewSpacingBottom;
1066             return this;
1067         }
1068 
1069         /**
1070          * Sets the alert dialog to use the inverse background, regardless of
1071          * what the contents is.
1072          *
1073          * @param useInverseBackground whether to use the inverse background
1074          * @return this Builder object to allow for chaining of calls to set methods
1075          * @deprecated This flag is only used for pre-Material themes. Instead,
1076          *             specify the window background using on the alert dialog
1077          *             theme.
1078          */
1079         @Deprecated
setInverseBackgroundForced(boolean useInverseBackground)1080         public Builder setInverseBackgroundForced(boolean useInverseBackground) {
1081             P.mForceInverseBackground = useInverseBackground;
1082             return this;
1083         }
1084 
1085         /**
1086          * @hide
1087          */
1088         @UnsupportedAppUsage
setRecycleOnMeasureEnabled(boolean enabled)1089         public Builder setRecycleOnMeasureEnabled(boolean enabled) {
1090             P.mRecycleOnMeasure = enabled;
1091             return this;
1092         }
1093 
1094 
1095         /**
1096          * Creates an {@link AlertDialog} with the arguments supplied to this
1097          * builder.
1098          * <p>
1099          * Calling this method does not display the dialog. If no additional
1100          * processing is needed, {@link #show()} may be called instead to both
1101          * create and display the dialog.
1102          */
create()1103         public AlertDialog create() {
1104             // Context has already been wrapped with the appropriate theme.
1105             final AlertDialog dialog = new AlertDialog(P.mContext, 0, false);
1106             P.apply(dialog.mAlert);
1107             dialog.setCancelable(P.mCancelable);
1108             if (P.mCancelable) {
1109                 dialog.setCanceledOnTouchOutside(true);
1110             }
1111             dialog.setOnCancelListener(P.mOnCancelListener);
1112             dialog.setOnDismissListener(P.mOnDismissListener);
1113             if (P.mOnKeyListener != null) {
1114                 dialog.setOnKeyListener(P.mOnKeyListener);
1115             }
1116             return dialog;
1117         }
1118 
1119         /**
1120          * Creates an {@link AlertDialog} with the arguments supplied to this
1121          * builder and immediately displays the dialog.
1122          * <p>
1123          * Calling this method is functionally identical to:
1124          * <pre>
1125          *     AlertDialog dialog = builder.create();
1126          *     dialog.show();
1127          * </pre>
1128          */
show()1129         public AlertDialog show() {
1130             final AlertDialog dialog = create();
1131             dialog.show();
1132             return dialog;
1133         }
1134     }
1135 
1136 }
1137