1 /* 2 * Copyright (C) 2012 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.dreams.phototable; 18 19 import android.content.Context; 20 import android.os.Handler; 21 import android.os.Message; 22 import android.util.AttributeSet; 23 import android.view.View; 24 import android.widget.TextView; 25 26 public class BummerView extends TextView { 27 public static final int START = 1; 28 public static final int MOVE = 2; 29 30 private int mDelay = 10000; // ms 31 private int mAnimTime = 2000; // ms 32 private boolean mAnimate = false; 33 34 private Handler mHandler = new Handler() { 35 @Override 36 public void handleMessage(Message m) { 37 boolean animate = false; 38 switch (m.what) { 39 case MOVE: 40 animate = mAnimate; 41 // fall through 42 case START: 43 final View parent = (View) BummerView.this.getParent(); 44 if (parent == null) 45 return; 46 47 final float framew = parent.getMeasuredWidth(); 48 final float frameh = parent.getMeasuredHeight(); 49 final float textw = getMeasuredWidth(); 50 final float texth = getMeasuredHeight(); 51 52 final float newx = (float) (Math.random() * (framew - textw)); 53 final float newy = (float) (Math.random() * (frameh - texth)); 54 if (animate) { 55 animate().x(newx) 56 .y(newy) 57 .setDuration(mAnimTime) 58 .start(); 59 } else { 60 setX(newx); 61 setY(newy); 62 } 63 setVisibility(View.VISIBLE); 64 65 removeMessages(MOVE); 66 sendEmptyMessageDelayed(MOVE, mDelay); 67 break; 68 } 69 } 70 }; 71 BummerView(Context context)72 public BummerView(Context context) { 73 super(context); 74 } 75 BummerView(Context context, AttributeSet attrs)76 public BummerView(Context context, AttributeSet attrs) { 77 this(context, attrs, 0); 78 } 79 BummerView(Context context, AttributeSet attrs, int flags)80 public BummerView(Context context, AttributeSet attrs, int flags) { 81 super(context, attrs, flags); 82 } 83 setAnimationParams(boolean animate, int delay, int animTime)84 public void setAnimationParams(boolean animate, int delay, int animTime) { 85 mAnimate = animate; 86 mDelay = delay; 87 mAnimTime = animTime; 88 } 89 90 @Override onAttachedToWindow()91 public void onAttachedToWindow() { 92 final View parent = (View) this.getParent(); 93 parent.addOnLayoutChangeListener(new OnLayoutChangeListener() { 94 public void onLayoutChange(View v, int left, int top, int right, int bottom, 95 int oldLeft, int oldTop, int oldRight, int oldBottom) { 96 if (v == parent && right != oldRight) { 97 mHandler.removeMessages(MOVE); 98 mHandler.sendEmptyMessage(START); 99 } 100 } 101 }); 102 103 mHandler.sendEmptyMessage(START); 104 } 105 106 } 107