| 1 | // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.base; |
| 6 | |
| 7 | import android.app.Notification; |
| 8 | import android.graphics.drawable.Drawable; |
| 9 | import android.os.Build; |
| 10 | import android.view.View; |
| 11 | import android.view.ViewGroup.MarginLayoutParams; |
| 12 | import android.view.ViewTreeObserver; |
| 13 | |
| 14 | /** |
| 15 | * Utility class to use new APIs that were added after ICS (API level 14). |
| 16 | */ |
| 17 | public class ApiCompatibilityUtils { |
| 18 | |
| 19 | private ApiCompatibilityUtils() { |
| 20 | } |
| 21 | |
| 22 | /** |
| 23 | * Returns true if view's layout direction is right-to-left. |
| 24 | * |
| 25 | * @param view the View whose layout is being considered |
| 26 | */ |
| 27 | public static boolean isLayoutRtl(View view) { |
| 28 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| 29 | return view.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL; |
| 30 | } else { |
| 31 | // All layouts are LTR before JB MR1. |
| 32 | return false; |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @see android.view.View#setLayoutDirection(int) |
| 38 | */ |
| 39 | public static void setLayoutDirection(View view, int layoutDirection) { |
| 40 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| 41 | view.setLayoutDirection(layoutDirection); |
| 42 | } else { |
| 43 | // Do nothing. RTL layouts aren't supported before JB MR1. |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * @see android.view.ViewGroup.MarginLayoutParams#setMarginEnd(int) |
| 49 | */ |
| 50 | public static void setMarginEnd(MarginLayoutParams layoutParams, int end) { |
| 51 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| 52 | layoutParams.setMarginEnd(end); |
| 53 | } else { |
| 54 | layoutParams.rightMargin = end; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * @see android.view.ViewGroup.MarginLayoutParams#getMarginEnd() |
| 60 | */ |
| 61 | public static int getMarginEnd(MarginLayoutParams layoutParams) { |
| 62 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| 63 | return layoutParams.getMarginEnd(); |
| 64 | } else { |
| 65 | return layoutParams.rightMargin; |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * @see android.view.ViewGroup.MarginLayoutParams#setMarginStart(int) |
| 71 | */ |
| 72 | public static void setMarginStart(MarginLayoutParams layoutParams, int start) { |
| 73 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| 74 | layoutParams.setMarginStart(start); |
| 75 | } else { |
| 76 | layoutParams.leftMargin = start; |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @see android.view.ViewGroup.MarginLayoutParams#getMarginStart() |
| 82 | */ |
| 83 | public static int getMarginStart(MarginLayoutParams layoutParams) { |
| 84 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { |
| 85 | return layoutParams.getMarginStart(); |
| 86 | } else { |
| 87 | return layoutParams.leftMargin; |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * @see android.view.View#postInvalidateOnAnimation() |
| 93 | */ |
| 94 | public static void postInvalidateOnAnimation(View view) { |
| 95 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { |
| 96 | view.postInvalidateOnAnimation(); |
| 97 | } else { |
| 98 | view.postInvalidate(); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | // These methods have a new name, and the old name is deprecated. |
| 103 | |
| 104 | /** |
| 105 | * @see android.view.View#setBackground(Drawable) |
| 106 | */ |
| 107 | @SuppressWarnings("deprecation") |
| 108 | public static void setBackgroundForView(View view, Drawable drawable) { |
| 109 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { |
| 110 | view.setBackground(drawable); |
| 111 | } else { |
| 112 | view.setBackgroundDrawable(drawable); |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * @see android.view.ViewTreeObserver#removeOnGlobalLayoutListener() |
| 118 | */ |
| 119 | @SuppressWarnings("deprecation") |
| 120 | public static void removeOnGlobalLayoutListener( |
| 121 | View view, ViewTreeObserver.OnGlobalLayoutListener listener) { |
| 122 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { |
| 123 | view.getViewTreeObserver().removeOnGlobalLayoutListener(listener); |
| 124 | } else { |
| 125 | view.getViewTreeObserver().removeGlobalOnLayoutListener(listener); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * @see android.app.Notification.Builder#build() |
| 131 | */ |
| 132 | @SuppressWarnings("deprecation") |
| 133 | public static Notification buildNotification(Notification.Builder builder) { |
| 134 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) { |
| 135 | return builder.build(); |
| 136 | } else { |
| 137 | return builder.getNotification(); |
| 138 | } |
| 139 | } |
| 140 | } |