public class MyAnimationDemo extends BaseActivity  implements SensorEventListener{
    private View mCircleLight;
    private ObjectAnimator mCircleLightAnimator;
    private CurtainView mCurtainView;
    private ImageView mIvStar;
    private ObjectAnimator mIvStarAnimator;
    private long lastShakeTime;
    
 
private int mAnimationCurrentState;

    private Sensor mAccecerateSonsor;
    private SensorManager mSensorManager;

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {

    }//精度發生變化時觸發

    @Override
    public void onSensorChanged(SensorEvent event) {
        if (event.sensor.getType()==TYPE_ACCELEROMETER) {
            
 
float value[] = event.values;
            float x = value[0];
            float y = value[1];
            float z = value[2];
            if (System.currentTimeMillis() - lastShakeTime > 2000 &&Math.abs(x)>17&&Math.abs(y)>17&&Math.abs(z)>17){
                lastShakeTime 
 
= System.currentTimeMillis();
                startAnimation();

            }

        }
    }//傳感器value值發生變化時觸發

    @Override
    public void onNetworkChanged() {

    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.acrivity_animation_demo);
        initview();
        initAnimator();
    }
    private void initview(){
        mCircleLight = (View)findViewById(R.id.animation_light);
        mCurtainView = (CurtainView)findViewById(R.id.animation_curtain);
        mIvStar = (ImageView)findViewById(R.id.animation_star);
    }

    private void initAnimator(){
        mCircleLightAnimator = new ObjectAnimator();
        mCircleLightAnimator.setTarget(mCircleLight);
        mCircleLightAnimator.setPropertyName("rotation");
        mCircleLightAnimator.setFloatValues(0,360);
        mCircleLightAnimator.setDuration(1000);
        mCircleLightAnimator.setRepeatMode(ValueAnimator.RESTART);
        mCircleLightAnimator.setInterpolator(new LinearInterpolator());
        mCircleLightAnimator.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animation) {

            }

            @Override
            public void onAnimationEnd(Animator animation) {
                mCurtainView.closeWindow();
            }

            @Override
            public void onAnimationCancel(Animator animation) {

            }

            @Override
            public void onAnimationRepeat(Animator animation) {

            }
        });

        mIvStarAnimator = new ObjectAnimator();
       // mIvStarAnimator.ofFloat(mIvStar,"rotationY",0,180);
        mIvStarAnimator.setTarget(mIvStar);
        mIvStarAnimator.setPropertyName("rotateX");
        mIvStarAnimator.setFloatValues(0,360);
        mIvStarAnimator.setInterpolator(new LinearInterpolator());
        mIvStarAnimator.setDuration(2000);
        mIvStarAnimator.setRepeatMode(ValueAnimator.RESTART);

    }
    private void startAnimation(){
        mCurtainView.setVisibility(View.VISIBLE);
        mCurtainView.openWindow();
        mCircleLightAnimator.start();
    }

    @Override
    protected void onResume() {
        super.onResume();
        mSensorManager =(SensorManager) getApplicationContext().getSystemService(SENSOR_SERVICE);
        if (mSensorManager != null) {
            mAccecerateSonsor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
            if (mAccecerateSonsor!=null){
                mSensorManager.registerListener(this,mAccecerateSonsor,SensorManager.SENSOR_DELAY_UI);
            }
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mSensorManager != null) {
            mAccecerateSonsor = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
            if (mAccecerateSonsor!=null){
                mSensorManager.unregisterListener(this,mAccecerateSonsor);
            }
        }

    }
}
onpause的時候也記得註銷 傳感器呀

自定義view 利用ValueAnimator實現窗簾開閉合動畫

public class CurtainView extends View implements ValueAnimator.AnimatorUpdateListener,Animation.AnimationListener {
    int mCurtainstate = 0;//0 完全打開 1 打開 2 閉合動作  3 完全閉合

    private Paint mPaint;
    private RectF mRectF;
    private ValueAnimator mAnimator;

    public CurtainView(Context context) {
        this(context,null);
    }

    public CurtainView(Context context, @Nullable AttributeSet attrs) {
        this(context, attrs,0);
    }

    public CurtainView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mPaint = new Paint();
        mPaint.setColor(Color.WHITE);
        mAnimator = new ValueAnimator();
        mAnimator.setDuration(500);
        mAnimator.addUpdateListener(this);
        mAnimator.setInterpolator(new DecelerateInterpolator());

    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        setMeasuredDimension(Math.min(widthMeasureSpec,heightMeasureSpec),Math.min(widthMeasureSpec,heightMeasureSpec));
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        if (mRectF==null){
            mRectF = new RectF(0,0,getMeasuredWidth(),getMeasuredHeight());
        }
        if (mAnimator.getAnimatedValue()!=null){
            int i = (int)mAnimator.getAnimatedValue();
            canvas.drawArc(mRectF,90-i,i*2,false,mPaint);//s上半邊窗簾
            canvas.drawArc(mRectF,270-i,i*2,false,mPaint);
        }

    }
    public  void openWindow(){
        mCurtainstate = 1;
        mAnimator.setIntValues(0,90);
        mAnimator.start();
    }

    public  void closeWindow(){
        mCurtainstate=2;
        mAnimator.setIntValues((int)mAnimator.getAnimatedValue(),0);
        mAnimator.start();
    }

    @Override
    public void onAnimationUpdate(ValueAnimator animation) {
        invalidate();
    }

    @Override
    public void onAnimationRepeat(Animation animation) {

    }

    @Override
    public void onAnimationStart(Animation animation) {

    }

    @Override
    public void onAnimationEnd(Animation animation) {
        if (mCurtainstate ==1){
            mCurtainstate = 0;
        }else if (mCurtainstate==2){
            mCurtainstate=3;
        }
    }
}

安卓 搖一搖 包含 objectAnimator valueAnimator的動畫效果