Sergey Vasilinets | 50f6733 | 2016-07-07 20:38:07 -0700 | [diff] [blame] | 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 | package com.android.test.uibench; |
| 17 | |
| 18 | import android.content.Context; |
| 19 | import android.graphics.drawable.Drawable; |
| 20 | import android.os.Bundle; |
| 21 | import android.support.annotation.Nullable; |
| 22 | import android.support.v7.app.AppCompatActivity; |
| 23 | import android.view.GestureDetector; |
| 24 | import android.view.LayoutInflater; |
| 25 | import android.view.MotionEvent; |
| 26 | import android.view.View; |
| 27 | import android.view.ViewConfiguration; |
| 28 | import android.widget.LinearLayout; |
| 29 | import android.widget.Scroller; |
| 30 | import android.widget.TextView; |
| 31 | |
| 32 | import java.util.ArrayList; |
| 33 | |
| 34 | public class NotificationShadeActivity extends AppCompatActivity { |
| 35 | |
| 36 | private static class FakeNotificationStackView extends LinearLayout { |
| 37 | private static final int INITIAL_ELEVATION = 40; |
| 38 | |
| 39 | private LayoutInflater mLayoutInflater; |
| 40 | private GestureDetector mGestureDetector; |
| 41 | private Scroller mScroller; |
| 42 | private ArrayList<View> mChildren = new ArrayList<>(); |
| 43 | private int mChildrenCount = 0; |
| 44 | private int mFullHeight = 0; |
| 45 | private int mScaledTouchSlop; |
| 46 | |
| 47 | private Runnable mUpdateAction = new Runnable() { |
| 48 | @Override |
| 49 | public void run() { |
| 50 | if (mScroller.computeScrollOffset()) { |
| 51 | updateState(mScroller.getCurrY()); |
| 52 | postOnAnimation(this); |
| 53 | } |
| 54 | } |
| 55 | }; |
| 56 | |
| 57 | private GestureDetector.OnGestureListener mGestureListener = |
| 58 | new GestureDetector.SimpleOnGestureListener() { |
| 59 | @Override |
| 60 | public boolean onDown(MotionEvent motionEvent) { |
| 61 | return true; |
| 62 | } |
| 63 | |
| 64 | @Override |
| 65 | public boolean onFling(MotionEvent e1, MotionEvent e2, float vX, float vY) { |
| 66 | if (Math.abs(e1.getY() - e2.getY()) <= mScaledTouchSlop) { |
| 67 | return false; |
| 68 | } |
| 69 | mScroller.fling(0, mFullHeight, 0, (int) vY, 0, 0, 0, getHeight()); |
| 70 | postOnAnimation(mUpdateAction); |
| 71 | return true; |
| 72 | } |
| 73 | }; |
| 74 | |
| 75 | private void generateNextView() { |
| 76 | View view = mLayoutInflater.inflate(R.layout.notification, this, false); |
| 77 | boolean even = mChildren.size() % 2 == 0; |
| 78 | Context context = getContext(); |
| 79 | ((TextView) view.findViewById(R.id.title)).setText(even ? |
| 80 | "Very important notification" : "Next video to watch"); |
| 81 | ((TextView) view.findViewById(R.id.line2)).setText(even ? |
| 82 | "Wifi nearby" : "Amazing cats"); |
| 83 | TextView infoView = (TextView) view.findViewById(R.id.info); |
| 84 | Drawable drawable = context.getDrawable(even ? R.drawable.ic_menu_manage |
| 85 | : R.drawable.ic_menu_slideshow); |
| 86 | int size = context.getResources().getDimensionPixelSize(R.dimen.notification_icon_size); |
| 87 | drawable.setBounds(0, 0, size, size); |
| 88 | infoView.setCompoundDrawables(drawable, null, null, null); |
| 89 | infoView.setText(even ? "Android System" : "Youtube"); |
| 90 | mChildren.add(view); |
| 91 | } |
| 92 | |
| 93 | public FakeNotificationStackView(Context context) { |
| 94 | super(context); |
| 95 | setOrientation(LinearLayout.VERTICAL); |
| 96 | mLayoutInflater = LayoutInflater.from(getContext()); |
| 97 | mGestureDetector = new GestureDetector(getContext(), mGestureListener); |
| 98 | mScaledTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop(); |
| 99 | mScroller = new Scroller(getContext()); |
| 100 | } |
| 101 | |
| 102 | private int lastChildHeight() { |
| 103 | return (int) mChildren.get(mChildrenCount - 1).getTag(); |
| 104 | } |
| 105 | |
| 106 | private void updateState(int expectedHeight) { |
| 107 | if (expectedHeight == 0 && mChildrenCount == 0) { |
| 108 | return; |
| 109 | } |
| 110 | for (View v: mChildren) { |
| 111 | v.setTranslationY(0); |
| 112 | v.setElevation(INITIAL_ELEVATION); |
| 113 | } |
| 114 | if (mChildrenCount != 0 && expectedHeight < mFullHeight - lastChildHeight()) { |
| 115 | while (mChildrenCount > 0){ |
| 116 | if (expectedHeight > mFullHeight - lastChildHeight()) { |
| 117 | break; |
| 118 | } |
| 119 | mFullHeight -= lastChildHeight(); |
| 120 | removeView(mChildren.get(mChildrenCount - 1)); |
| 121 | mChildrenCount--; |
| 122 | } |
| 123 | } else if (expectedHeight > mFullHeight) { |
| 124 | while (expectedHeight > mFullHeight) { |
| 125 | if (mChildrenCount == mChildren.size()) { |
| 126 | generateNextView(); |
| 127 | } |
| 128 | mChildrenCount++; |
| 129 | View child = mChildren.get(mChildrenCount - 1); |
| 130 | child.setElevation(INITIAL_ELEVATION); |
| 131 | int widthSpec = MeasureSpec.makeMeasureSpec(getWidth(), MeasureSpec.AT_MOST); |
| 132 | int heightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); |
| 133 | child.measure(widthSpec, heightSpec); |
| 134 | addView(child); |
| 135 | int measuredHeight = child.getMeasuredHeight(); |
| 136 | child.setTag(measuredHeight); |
| 137 | mFullHeight += measuredHeight; |
| 138 | } |
| 139 | } |
| 140 | if (mChildrenCount == 0) { |
| 141 | return; |
| 142 | } |
| 143 | View lastChild = mChildren.get(mChildrenCount - 1); |
| 144 | int translationY = expectedHeight - mFullHeight; |
| 145 | lastChild.setTranslationY(translationY); |
| 146 | float p = - ((float) translationY) / lastChildHeight(); |
| 147 | lastChild.setElevation((1 - p) * INITIAL_ELEVATION); |
| 148 | } |
| 149 | |
| 150 | @Override |
| 151 | public boolean onTouchEvent(MotionEvent ev) { |
| 152 | return mGestureDetector.onTouchEvent(ev); |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | @Override |
| 157 | protected void onCreate(@Nullable Bundle savedInstanceState) { |
| 158 | super.onCreate(savedInstanceState); |
| 159 | setContentView(new FakeNotificationStackView(this)); |
| 160 | } |
| 161 | } |