1 /* 2 * Copyright (C) 2018 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 com.android.dialer.widget; 18 19 import android.content.Context; 20 import android.preference.Preference; 21 import android.text.method.LinkMovementMethod; 22 import android.util.AttributeSet; 23 import android.view.View; 24 import android.widget.TextView; 25 26 /** 27 * Provides a {@link TextView} inside a preference. Useful for displaying static text which may 28 * contain hyperlinks. 29 */ 30 public class TextViewPreference extends Preference { 31 32 /** 33 * The resource ID of the text to be populated in the {@link TextView} when a resource ID is used. 34 */ 35 private int textResourceId = 0; 36 37 /** The text to be populated in the {@link TextView} when a {@link CharSequence} is used. */ 38 private CharSequence text; 39 40 /** The {@link TextView} containing the text. */ 41 private TextView textView; 42 43 /** 44 * Instantiates the {@link TextViewPreference} instance. 45 * 46 * @param context The Context this is associated with, through which it can access the current 47 * theme, resources, etc. 48 * @param attrs The attributes of the XML tag that is inflating the preference. 49 * @param defStyleAttr An attribute in the current theme that contains a reference to a style 50 * resource that supplies default values for the view. Can be 0 to not look for defaults. 51 * @param defStyleRes A resource identifier of a style resource that supplies default values for 52 * the view, used only if defStyleAttr is 0 or can not be found in the theme. Can be 0 to not 53 * look for defaults. 54 */ TextViewPreference( Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)55 public TextViewPreference( 56 Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 57 super(context, attrs, defStyleAttr, defStyleRes); 58 59 setLayoutResource(R.layout.text_view_preference); 60 } 61 62 /** 63 * Instantiates the {@link TextViewPreference} instance. 64 * 65 * @param context The Context this is associated with, through which it can access the current 66 * theme, resources, etc. 67 * @param attrs The attributes of the XML tag that is inflating the preference. 68 * @param defStyleAttr An attribute in the current theme that contains a reference to a style 69 * resource that supplies default values for the view. Can be 0 to not look for defaults. 70 */ TextViewPreference(Context context, AttributeSet attrs, int defStyleAttr)71 public TextViewPreference(Context context, AttributeSet attrs, int defStyleAttr) { 72 this(context, attrs, defStyleAttr, 0); 73 } 74 75 /** 76 * Instantiates the {@link TextViewPreference} instance. 77 * 78 * @param context The Context this is associated with, through which it can access the current 79 * theme, resources, etc. 80 * @param attrs The attributes of the XML tag that is inflating the preference. 81 */ TextViewPreference(Context context, AttributeSet attrs)82 public TextViewPreference(Context context, AttributeSet attrs) { 83 this(context, attrs, android.R.attr.preferenceStyle, 0); 84 } 85 86 /** 87 * Instantiates the {@link TextViewPreference} instance. 88 * 89 * @param context The Context this is associated with, through which it can access the current 90 * theme, resources, etc. 91 */ TextViewPreference(Context context)92 public TextViewPreference(Context context) { 93 super(context, null); 94 95 setLayoutResource(R.layout.text_view_preference); 96 } 97 98 /** 99 * Handles binding the preference. 100 * 101 * @param view The view. 102 */ 103 @Override onBindView(View view)104 protected void onBindView(View view) { 105 super.onBindView(view); 106 textView = (TextView) view.findViewById(R.id.text); 107 if (textResourceId != 0) { 108 setTitle(textResourceId); 109 } else if (text != null) { 110 setTitle(text); 111 } 112 } 113 114 /** 115 * Sets the preference title from a {@link CharSequence}. 116 * 117 * @param text The text. 118 */ 119 @Override setTitle(CharSequence text)120 public void setTitle(CharSequence text) { 121 textResourceId = 0; 122 this.text = text; 123 if (textView == null) { 124 return; 125 } 126 127 textView.setMovementMethod(LinkMovementMethod.getInstance()); 128 textView.setText(text); 129 } 130 131 /** 132 * Sets the preference title from a resource id. 133 * 134 * @param textResId The string resource Id. 135 */ 136 @Override setTitle(int textResId)137 public void setTitle(int textResId) { 138 textResourceId = textResId; 139 setTitle(getContext().getString(textResId)); 140 } 141 } 142