Android 动画之ScaleAnimation应用详解

public class MainActivity extends Activity {
ImageView image;
Button start;
Button cancel;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
image=(ImageView) findViewById(R.id.main_img);
start=(Button) findViewById(R.id.main_start);
cancel=(Button) findViewById(R.id.main_cancel);

final ScaleAnimation animation=new ScaleAnimation(0.0f, 1.4f, 0.0f, 1.4f,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
animation.setDuration(2000);//设置动画持续时间

//animation.setRepeatCount(int repeatCount);//设置重复次数
//animation.setFillAfter(boolean);//动画执行完后是否停留在执行完的状态
//animation.setStartOffset(long startOffset);//执行前的等待时间
start.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
image.setAnimation(animation);

animation.startNow();
}
});
cancel.setOnClickListener(new OnClickListener() {
public void onClick(View v) {

animation.cancel();
}
});
}
}