1 /* 2 * Copyright (C) 2011 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.deskclock; 18 19 import android.view.animation.AccelerateInterpolator; 20 import android.view.animation.DecelerateInterpolator; 21 import android.animation.TimeInterpolator; 22 import android.animation.ObjectAnimator; 23 import android.animation.Animator; 24 import android.animation.AnimatorSet; 25 import android.app.Activity; 26 import android.os.Handler; 27 import android.content.Context; 28 import android.util.AttributeSet; 29 import android.view.View; 30 import android.view.ViewGroup; 31 import android.view.WindowManager; 32 import android.widget.FrameLayout; 33 import android.widget.TextView; 34 import java.lang.Runnable; 35 import android.util.Log; 36 37 public class Screensaver extends Activity { 38 View mContainer; 39 40 static int CLOCK_COLOR = 0xFF66AAFF; 41 42 static final long MOVE_DELAY = 60000; // DeskClock.SCREEN_SAVER_MOVE_DELAY; 43 static final long SLIDE_TIME = 10000; 44 static final long FADE_TIME = 1000; 45 46 static final boolean SLIDE = false; 47 48 private static TimeInterpolator mSlowStartWithBrakes = 49 new TimeInterpolator() { 50 public float getInterpolation(float x) { 51 return (float)(Math.cos((Math.pow(x,3) + 1) * Math.PI) / 2.0f) + 0.5f; 52 } 53 }; 54 55 private Handler mHandler = new Handler(); 56 57 private Runnable mMoveSaverRunnable = new Runnable() { 58 @Override 59 public void run() { 60 long delay = MOVE_DELAY; 61 62 View parent = (View)mContainer.getParent(); 63 //Log.d("DeskClock/Screensaver", String.format("parent=(%d x %d)", 64 // parent.getWidth(), parent.getHeight())); 65 final float xrange = parent.getWidth() - mContainer.getWidth(); 66 final float yrange = parent.getHeight() - mContainer.getHeight(); 67 68 if (xrange == 0) { 69 delay = 500; // back in a split second 70 } else { 71 final int nextx = (int) (Math.random() * xrange); 72 final int nexty = (int) (Math.random() * yrange); 73 74 if (mContainer.getAlpha() == 0f) { 75 // jump right there 76 mContainer.setX(nextx); 77 mContainer.setY(nexty); 78 ObjectAnimator.ofFloat(mContainer, "alpha", 0f, 1f) 79 .setDuration(FADE_TIME) 80 .start(); 81 } else { 82 AnimatorSet s = new AnimatorSet(); 83 Animator xMove = ObjectAnimator.ofFloat(mContainer, 84 "x", mContainer.getX(), nextx); 85 Animator yMove = ObjectAnimator.ofFloat(mContainer, 86 "y", mContainer.getY(), nexty); 87 88 Animator xShrink = ObjectAnimator.ofFloat(mContainer, "scaleX", 1f, 0.75f); 89 Animator xGrow = ObjectAnimator.ofFloat(mContainer, "scaleX", 0.75f, 1f); 90 91 Animator yShrink = ObjectAnimator.ofFloat(mContainer, "scaleY", 1f, 0.75f); 92 Animator yGrow = ObjectAnimator.ofFloat(mContainer, "scaleY", 0.75f, 1f); 93 AnimatorSet shrink = new AnimatorSet(); shrink.play(xShrink).with(yShrink); 94 AnimatorSet grow = new AnimatorSet(); grow.play(xGrow).with(yGrow); 95 96 Animator fadeout = ObjectAnimator.ofFloat(mContainer, "alpha", 1f, 0f); 97 Animator fadein = ObjectAnimator.ofFloat(mContainer, "alpha", 0f, 1f); 98 99 100 if (SLIDE) { 101 s.play(xMove).with(yMove); 102 s.setDuration(SLIDE_TIME); 103 104 s.play(shrink.setDuration(SLIDE_TIME/2)); 105 s.play(grow.setDuration(SLIDE_TIME/2)).after(shrink); 106 s.setInterpolator(mSlowStartWithBrakes); 107 } else { 108 AccelerateInterpolator accel = new AccelerateInterpolator(); 109 DecelerateInterpolator decel = new DecelerateInterpolator(); 110 111 shrink.setDuration(FADE_TIME).setInterpolator(accel); 112 fadeout.setDuration(FADE_TIME).setInterpolator(accel); 113 grow.setDuration(FADE_TIME).setInterpolator(decel); 114 fadein.setDuration(FADE_TIME).setInterpolator(decel); 115 s.play(shrink); 116 s.play(fadeout); 117 s.play(xMove.setDuration(0)).after(FADE_TIME); 118 s.play(yMove.setDuration(0)).after(FADE_TIME); 119 s.play(fadein).after(FADE_TIME); 120 s.play(grow).after(FADE_TIME); 121 } 122 s.start(); 123 } 124 125 long now = System.currentTimeMillis(); 126 long adjust = (now % 60000); 127 delay = delay 128 + (MOVE_DELAY - adjust) // minute aligned 129 - (SLIDE ? 0 : FADE_TIME) // start moving before the fade 130 ; 131 //Log.d("DeskClock/Screensaver", "will move again in " + delay + " now=" + now + " adjusted by " + adjust); 132 } 133 134 mHandler.removeCallbacks(this); 135 mHandler.postDelayed(this, delay); 136 } 137 }; 138 139 @Override onStart()140 public void onStart() { 141 super.onStart(); 142 CLOCK_COLOR = getResources().getColor(R.color.screen_saver_color); 143 setContentView(R.layout.desk_clock_saver); 144 mContainer = findViewById(R.id.saver_view); 145 mContainer.setAlpha(0); 146 mContainer.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE); 147 mContainer.setLayerType(View.LAYER_TYPE_SOFTWARE, null); 148 149 AndroidClockTextView timeDisplay = (AndroidClockTextView) findViewById(R.id.timeDisplay); 150 if (timeDisplay != null) { 151 timeDisplay.setTextColor(CLOCK_COLOR); 152 AndroidClockTextView amPm = (AndroidClockTextView)findViewById(R.id.am_pm); 153 if (amPm != null) amPm.setTextColor(CLOCK_COLOR); 154 } 155 156 getWindow().addFlags( 157 WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON 158 | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON 159 | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED 160 ); 161 } 162 163 @Override onResume()164 public void onResume() { 165 super.onResume(); 166 167 mMoveSaverRunnable.run(); 168 } 169 170 @Override onPause()171 public void onPause() { 172 super.onPause(); 173 174 mHandler.removeCallbacks(mMoveSaverRunnable); 175 } 176 177 @Override onUserInteraction()178 public void onUserInteraction() { 179 finish(); 180 } 181 } 182