1 /* 2 * Copyright (C) 2010 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.preference; 18 19 import android.content.Context; 20 import android.content.res.TypedArray; 21 import android.util.AttributeSet; 22 import android.view.View; 23 import android.widget.FrameLayout; 24 25 /** 26 * @hide 27 * 28 * @deprecated Use the <a href="{@docRoot}jetpack/androidx.html">AndroidX</a> 29 * <a href="{@docRoot}reference/androidx/preference/package-summary.html"> 30 * Preference Library</a> for consistent behavior across all devices. For more information on 31 * using the AndroidX Preference Library see 32 * <a href="{@docRoot}guide/topics/ui/settings.html">Settings</a>. 33 */ 34 @Deprecated 35 public class PreferenceFrameLayout extends FrameLayout { 36 private static final int DEFAULT_BORDER_TOP = 0; 37 private static final int DEFAULT_BORDER_BOTTOM = 0; 38 private static final int DEFAULT_BORDER_LEFT = 0; 39 private static final int DEFAULT_BORDER_RIGHT = 0; 40 private final int mBorderTop; 41 private final int mBorderBottom; 42 private final int mBorderLeft; 43 private final int mBorderRight; 44 private boolean mPaddingApplied; 45 PreferenceFrameLayout(Context context)46 public PreferenceFrameLayout(Context context) { 47 this(context, null); 48 } 49 PreferenceFrameLayout(Context context, AttributeSet attrs)50 public PreferenceFrameLayout(Context context, AttributeSet attrs) { 51 this(context, attrs, com.android.internal.R.attr.preferenceFrameLayoutStyle); 52 } 53 PreferenceFrameLayout(Context context, AttributeSet attrs, int defStyleAttr)54 public PreferenceFrameLayout(Context context, AttributeSet attrs, int defStyleAttr) { 55 this(context, attrs, defStyleAttr, 0); 56 } 57 PreferenceFrameLayout( Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)58 public PreferenceFrameLayout( 59 Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 60 super(context, attrs, defStyleAttr, defStyleRes); 61 final TypedArray a = context.obtainStyledAttributes(attrs, 62 com.android.internal.R.styleable.PreferenceFrameLayout, defStyleAttr, defStyleRes); 63 64 float density = context.getResources().getDisplayMetrics().density; 65 int defaultBorderTop = (int) (density * DEFAULT_BORDER_TOP + 0.5f); 66 int defaultBottomPadding = (int) (density * DEFAULT_BORDER_BOTTOM + 0.5f); 67 int defaultLeftPadding = (int) (density * DEFAULT_BORDER_LEFT + 0.5f); 68 int defaultRightPadding = (int) (density * DEFAULT_BORDER_RIGHT + 0.5f); 69 70 mBorderTop = a.getDimensionPixelSize( 71 com.android.internal.R.styleable.PreferenceFrameLayout_borderTop, 72 defaultBorderTop); 73 mBorderBottom = a.getDimensionPixelSize( 74 com.android.internal.R.styleable.PreferenceFrameLayout_borderBottom, 75 defaultBottomPadding); 76 mBorderLeft = a.getDimensionPixelSize( 77 com.android.internal.R.styleable.PreferenceFrameLayout_borderLeft, 78 defaultLeftPadding); 79 mBorderRight = a.getDimensionPixelSize( 80 com.android.internal.R.styleable.PreferenceFrameLayout_borderRight, 81 defaultRightPadding); 82 83 a.recycle(); 84 } 85 86 /** 87 * {@inheritDoc} 88 */ 89 @Override generateLayoutParams(AttributeSet attrs)90 public LayoutParams generateLayoutParams(AttributeSet attrs) { 91 return new LayoutParams(getContext(), attrs); 92 } 93 94 @Override addView(View child)95 public void addView(View child) { 96 int borderTop = getPaddingTop(); 97 int borderBottom = getPaddingBottom(); 98 int borderLeft = getPaddingLeft(); 99 int borderRight = getPaddingRight(); 100 101 android.view.ViewGroup.LayoutParams params = child.getLayoutParams(); 102 LayoutParams layoutParams = params instanceof PreferenceFrameLayout.LayoutParams 103 ? (PreferenceFrameLayout.LayoutParams) child.getLayoutParams() : null; 104 // Check on the id of the child before adding it. 105 if (layoutParams != null && layoutParams.removeBorders) { 106 if (mPaddingApplied) { 107 borderTop -= mBorderTop; 108 borderBottom -= mBorderBottom; 109 borderLeft -= mBorderLeft; 110 borderRight -= mBorderRight; 111 mPaddingApplied = false; 112 } 113 } else { 114 // Add the padding to the view group after determining if the 115 // padding already exists. 116 if (!mPaddingApplied) { 117 borderTop += mBorderTop; 118 borderBottom += mBorderBottom; 119 borderLeft += mBorderLeft; 120 borderRight += mBorderRight; 121 mPaddingApplied = true; 122 } 123 } 124 125 int previousTop = getPaddingTop(); 126 int previousBottom = getPaddingBottom(); 127 int previousLeft = getPaddingLeft(); 128 int previousRight = getPaddingRight(); 129 if (previousTop != borderTop || previousBottom != borderBottom 130 || previousLeft != borderLeft || previousRight != borderRight) { 131 setPadding(borderLeft, borderTop, borderRight, borderBottom); 132 } 133 134 super.addView(child); 135 } 136 137 public static class LayoutParams extends FrameLayout.LayoutParams { 138 public boolean removeBorders = false; 139 /** 140 * {@inheritDoc} 141 */ LayoutParams(Context c, AttributeSet attrs)142 public LayoutParams(Context c, AttributeSet attrs) { 143 super(c, attrs); 144 145 TypedArray a = c.obtainStyledAttributes(attrs, 146 com.android.internal.R.styleable.PreferenceFrameLayout_Layout); 147 removeBorders = a.getBoolean( 148 com.android.internal.R.styleable.PreferenceFrameLayout_Layout_layout_removeBorders, 149 false); 150 a.recycle(); 151 } 152 153 /** 154 * {@inheritDoc} 155 */ LayoutParams(int width, int height)156 public LayoutParams(int width, int height) { 157 super(width, height); 158 } 159 } 160 }