Android Open Source - tdpforce Animator

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Back to project page tdpforce.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (c) 2012 Jason Polites/*  w w  w  .jav a  2  s .c om*/
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.polites.android;


/**
 * @author Jason Polites
 *
 */
public class Animator extends Thread {
  
  private GestureImageView view;
  private Animation animation;
  private boolean running = false;
  private boolean active = false;
  private long lastTime = -1L;

  public Animator(GestureImageView view, String threadName) {
    super(threadName);
    this.view = view;
  }
  
  @Override
  public void run() {
    
    running = true;
    
    while(running) {
        
      while(active && animation != null) {
        long time = System.currentTimeMillis();
        active = animation.update(view, time - lastTime);
        view.redraw();
        lastTime = time;          
        
        while(active) {
          try {
            if(view.waitForDraw(32)) { // 30Htz
              break;
            }
          }
          catch (InterruptedException ignore) {
            active = false;
          }
        }
      }
      
      synchronized(this) {
        if(running) {
          try {
            wait();
          }
          catch (InterruptedException ignore) {}
        }
      }
    }
  }

  public synchronized void finish() {
    running = false;
    active = false;
    notifyAll();
  }

  public void play(Animation transformer) {
    if(active) {
      cancel();
    }
     this.animation = transformer;
     
     activate();
  }
  
  public synchronized void activate() {
    lastTime = System.currentTimeMillis();
    active = true;
    notifyAll();
  }
  
  public void cancel() {
    active = false;
  }
}

Java Source Code List