Android 动画总结-帧动画

帧动画就不多解释了.

如果需要一进页面就播放帧动画有一点要注意, 如果直接在onCreate方法启动有可能导致缺少后面的帧

两种方法可以避免

在onWindowFocusChanged里面启动

 @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
        mFrameAnim.start();
    }

addIdleHandler

getMainLooper().myQueue().addIdleHandler(new MessageQueue.IdleHandler() {
   @Override
    public boolean queueIdle() {
        mFrameAnim.start();
        return false;
    }
});

完整代码:

FrameAnimActivity

public class FrameAnimActivity extends AppCompatActivity {
    private ImageView mIvFramanim;
    private Button mBtnStart;
    private Button mBtnStop;
    private AnimationDrawable mFrameAnim;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_frame_anim);
        mIvFramanim = (ImageView) findViewById(R.id.iv_framanim);
        mBtnStart = (Button) findViewById(R.id.btn_start);
        mBtnStop = (Button) findViewById(R.id.btn_stop);
        mFrameAnim = (AnimationDrawable) mIvFramanim.getBackground();

        //另一种进入页面就显示动画解决方法
        getMainLooper().myQueue().addIdleHandler(new MessageQueue.IdleHandler() {
            @Override
            public boolean queueIdle() {
                mFrameAnim.start();
                return false;
            }
        });
    }

    /*
    * 如果需要进入页面就立即显示动画需要在onWindowFocusChanged方法调用*/
    @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
//        mFrameAnim.start();
    }

    public void onClick(View view) {
        switch (view.getId()) {
            case R.id.btn_start:
                mFrameAnim.start();
                break;

            case R.id.btn_stop:
                mFrameAnim.stop();
                break;
            default:
                break;
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        mFrameAnim.stop();
    }
}

xml中指定drawable和duration就可以了, 可以指定多个.

mframe_anim.xml

<animation-list xmlns:android="http://schemas.android.com/apk/res/android"
    android:oneshot="false">
    <item
        android:drawable="@color/colorAccent"
        android:duration="200" />
    <item
        android:drawable="@color/colorPrimary"
        android:duration="200" />
    <item
        android:drawable="@color/colorPrimaryDark"
        android:duration="200" />
animation-list>

源码参见: http://download.csdn.net/detail/maimiho/9660930
Android 动画总结-Activity切换动画 http://write.blog.csdn.net/mdeditor
Android 动画总结-Layout动画 http://blog.csdn.net/maimiho/article/details/52888887
Android 动画总结-帧动画 http://blog.csdn.net/maimiho/article/details/52893291
Android 动画总结-补间动画 http://blog.csdn.net/maimiho/article/details/52893403
Android 动画总结-属性动画 http://blog.csdn.net/maimiho/article/details/52894023
Android 动画总结-ViewPropertyAnimator http://blog.csdn.net/maimiho/article/details/52894151
Android 动画总结-矢量动画 http://blog.csdn.net/maimiho/article/details/52894266