1 /* 2 * Copyright (C) 2016 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.internal.widget; 18 19 import android.annotation.Nullable; 20 import android.content.Context; 21 import android.util.AttributeSet; 22 import android.view.View; 23 import android.view.ViewGroup; 24 import android.widget.FrameLayout; 25 import android.widget.ImageView; 26 import android.widget.RelativeLayout; 27 import android.widget.RemoteViews; 28 29 /** 30 * A TextView that can float around an image on the end. 31 * 32 * @hide 33 */ 34 @RemoteViews.RemoteView 35 public class MediaNotificationView extends FrameLayout { 36 37 private final int mMaxImageSize; 38 private final int mImageMinTopMargin; 39 private final int mNotificationContentMarginEnd; 40 private final int mNotificationContentImageMarginEnd; 41 private ImageView mRightIcon; 42 private View mActions; 43 private View mHeader; 44 private View mMainColumn; 45 MediaNotificationView(Context context)46 public MediaNotificationView(Context context) { 47 this(context, null); 48 } 49 MediaNotificationView(Context context, @Nullable AttributeSet attrs)50 public MediaNotificationView(Context context, @Nullable AttributeSet attrs) { 51 this(context, attrs, 0); 52 } 53 MediaNotificationView(Context context, @Nullable AttributeSet attrs, int defStyleAttr)54 public MediaNotificationView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { 55 this(context, attrs, defStyleAttr, 0); 56 } 57 58 @Override onMeasure(int widthMeasureSpec, int heightMeasureSpec)59 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 60 int mode = MeasureSpec.getMode(widthMeasureSpec); 61 boolean hasIcon = mRightIcon.getVisibility() != GONE; 62 if (hasIcon && mode != MeasureSpec.UNSPECIFIED) { 63 measureChild(mActions, widthMeasureSpec, heightMeasureSpec); 64 int size = MeasureSpec.getSize(widthMeasureSpec); 65 size = size - mActions.getMeasuredWidth(); 66 ViewGroup.MarginLayoutParams layoutParams = 67 (MarginLayoutParams) mRightIcon.getLayoutParams(); 68 int imageEndMargin = layoutParams.getMarginEnd(); 69 size -= imageEndMargin; 70 size = Math.min(size, mMaxImageSize); 71 size = Math.max(size, mRightIcon.getMinimumWidth()); 72 layoutParams.width = size; 73 layoutParams.height = size; 74 mRightIcon.setLayoutParams(layoutParams); 75 76 // lets ensure that the main column doesn't run into the image 77 ViewGroup.MarginLayoutParams mainParams 78 = (MarginLayoutParams) mMainColumn.getLayoutParams(); 79 int marginEnd = size + imageEndMargin + mNotificationContentMarginEnd; 80 if (marginEnd != mainParams.getMarginEnd()) { 81 mainParams.setMarginEnd(marginEnd); 82 mMainColumn.setLayoutParams(mainParams); 83 } 84 85 } 86 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 87 ViewGroup.MarginLayoutParams iconParams = 88 (MarginLayoutParams) mRightIcon.getLayoutParams(); 89 int topMargin = getMeasuredHeight() - mRightIcon.getMeasuredHeight() 90 - iconParams.bottomMargin; 91 // If the topMargin is high enough we can also remove the header constraint! 92 boolean reMeasure = false; 93 if (!hasIcon || topMargin >= mImageMinTopMargin) { 94 reMeasure = resetHeaderIndention(); 95 } else { 96 int paddingEnd = mNotificationContentImageMarginEnd; 97 ViewGroup.MarginLayoutParams headerParams = 98 (MarginLayoutParams) mHeader.getLayoutParams(); 99 int newMarginEnd = mRightIcon.getMeasuredWidth() + iconParams.getMarginEnd(); 100 if (headerParams.getMarginEnd() != newMarginEnd) { 101 headerParams.setMarginEnd(newMarginEnd); 102 mHeader.setLayoutParams(headerParams); 103 reMeasure = true; 104 } 105 if (mHeader.getPaddingEnd() != paddingEnd) { 106 mHeader.setPaddingRelative(mHeader.getPaddingStart(), 107 mHeader.getPaddingTop(), 108 paddingEnd, 109 mHeader.getPaddingBottom()); 110 reMeasure = true; 111 } 112 } 113 if (reMeasure) { 114 measureChildWithMargins(mHeader, widthMeasureSpec, 0, heightMeasureSpec, 0); 115 } 116 } 117 resetHeaderIndention()118 private boolean resetHeaderIndention() { 119 boolean remeasure = false; 120 if (mHeader.getPaddingEnd() != mNotificationContentMarginEnd) { 121 mHeader.setPaddingRelative(mHeader.getPaddingStart(), 122 mHeader.getPaddingTop(), 123 mNotificationContentMarginEnd, 124 mHeader.getPaddingBottom()); 125 remeasure = true; 126 } 127 ViewGroup.MarginLayoutParams headerParams = 128 (MarginLayoutParams) mHeader.getLayoutParams(); 129 headerParams.setMarginEnd(0); 130 if (headerParams.getMarginEnd() != 0) { 131 headerParams.setMarginEnd(0); 132 mHeader.setLayoutParams(headerParams); 133 remeasure = true; 134 } 135 return remeasure; 136 } 137 MediaNotificationView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)138 public MediaNotificationView(Context context, AttributeSet attrs, int defStyleAttr, 139 int defStyleRes) { 140 super(context, attrs, defStyleAttr, defStyleRes); 141 mMaxImageSize = context.getResources().getDimensionPixelSize( 142 com.android.internal.R.dimen.media_notification_expanded_image_max_size); 143 mImageMinTopMargin = (int) (context.getResources().getDimensionPixelSize( 144 com.android.internal.R.dimen.notification_content_margin_top) 145 + getResources().getDisplayMetrics().density * 2); 146 mNotificationContentMarginEnd = context.getResources().getDimensionPixelSize( 147 com.android.internal.R.dimen.notification_content_margin_end); 148 mNotificationContentImageMarginEnd = context.getResources().getDimensionPixelSize( 149 com.android.internal.R.dimen.notification_content_image_margin_end); 150 } 151 152 @Override onFinishInflate()153 protected void onFinishInflate() { 154 super.onFinishInflate(); 155 mRightIcon = (ImageView) findViewById(com.android.internal.R.id.right_icon); 156 mActions = findViewById(com.android.internal.R.id.media_actions); 157 mHeader = findViewById(com.android.internal.R.id.notification_header); 158 mMainColumn = findViewById(com.android.internal.R.id.notification_main_column); 159 } 160 } 161