Android中的帧动画

MainActivity文件：

public class MainActivity extends Activity implements OnClickListener{
    AnimationDrawable anim_draw;
    @SuppressLint("NewApi")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ImageView anim_iv = (ImageView) findViewById(R.id.iv_anim);
        anim_draw = new AnimationDrawable();
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi0), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi1), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi2), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi3), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi4), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi5), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi6), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi7), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi8), 100);
        anim_draw.addFrame(getResources().getDrawable(R.drawable.animate_straight_zuzi9), 100);
        anim_draw.setOneShot(false);
        anim_iv.setBackground(anim_draw);
//        anim_iv.setBackgroundResource(R.drawable.anim_list);
//        anim_draw = (AnimationDrawable) anim_iv.getBackground();
        findViewById(R.id.btn_start).setOnClickListener(this);
        findViewById(R.id.btn_stop).setOnClickListener(this);
    }
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch(v.getId()){
        case R.id.btn_start:
            anim_draw.start();
            break;
        case R.id.btn_stop:
            anim_draw.stop();
            break;
        }
    }
}

activity_main文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/btn_start"
            android:text="开始"/>
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/btn_stop"
            android:text="停止"/>
        <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ImageView
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_centerInParent="true"
            android:id="@+id/iv_anim"/>
    </RelativeLayout>
    </LinearLayout>
</RelativeLayout>

anim_list文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/btn_start"
            android:text="开始"/>
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/btn_stop"
            android:text="停止"/>
        <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ImageView
            android:layout_width="200dp"
            android:layout_height="200dp"
            android:layout_centerInParent="true"
            android:id="@+id/iv_anim"/>
    </RelativeLayout>
    </LinearLayout>
</RelativeLayout>

最终效果：