Android动画之逐帧动画(FrameAnimation)详解

转载请注明出处：http://blog.csdn.net/xiaohao0724/article/details/54582965

Android中的动画,大概分为三种:

1、逐帧动画(FrameAnimation)

2、补间动画(TweenAnimation)

3、属性动画(PropertyAnimation)

今天我们就来学习逐帧动画,废话少说直接上效果图如下:

帧动画的实现方式有两种：

一、在res/drawable文件夹下新建animation-list的XML实现帧动画

1、首先在res/drawable文件夹下添加img00-img24共25张图片

2、新建frame_anim.xml

3、在activity_main中添加控件

4、在代码中获取并开启帧动画

public class MainActivity extends Activity implements OnClickListener {

	private ImageView imageView;
	private AnimationDrawable animationDrawable;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		imageView = (ImageView) findViewById(R.id.imageView);
		findViewById(R.id.start).setOnClickListener(this);
		findViewById(R.id.stop).setOnClickListener(this);

		setXml2FrameAnim1();
		// setXml2FrameAnim2();

	}

	/**
	 * 通过XML添加帧动画方法一
	 */
	private void setXml2FrameAnim1() {

		// 把动画资源设置为imageView的背景,也可直接在XML里面设置
		imageView.setBackgroundResource(R.drawable.frame_anim);
		animationDrawable = (AnimationDrawable) imageView.getBackground();
	}

	/**
	 * 通过XML添加帧动画方法二
	 */
	private void setXml2FrameAnim2() {

		// 通过逐帧动画的资源文件获得AnimationDrawable示例
		animationDrawable = (AnimationDrawable) getResources().getDrawable(
				R.drawable.frame_anim);
		imageView.setBackground(animationDrawable);
	}
 
	@Override
	public void onClick(View v) {

		switch (v.getId()) {
		case R.id.start:
			if (animationDrawable != null && !animationDrawable.isRunning()) {
				animationDrawable.start();
			}
			break;
		case R.id.stop:
			if (animationDrawable != null && animationDrawable.isRunning()) {
				animationDrawable.stop();
			}
			break;

		default:
			break;
		}
	}

}

二、通过代码实现帧动画

	/**
	 * 通过代码添加帧动画方法
	 */
	private void setSrc2FrameAnim() {

		animationDrawable = new AnimationDrawable();
		// 为AnimationDrawable添加动画帧
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img00), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img01), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img02), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img03), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img04), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img05), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img06), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img07), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img08), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img09), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img10), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img11), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img12), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img13), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img14), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img15), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img16), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img17), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img18), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img19), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img20), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img21), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img22), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img23), 50);
		animationDrawable.addFrame(
				getResources().getDrawable(R.drawable.img24), 50);
		// 设置为循环播放
		animationDrawable.setOneShot(false);
		imageView.setBackground(animationDrawable);
	}

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