Ace 动画应用实例 ------启动欢迎界面

public class SplashActivity extends Activity {

    private RelativeLayout rlRoot;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash);
        rlRoot = (RelativeLayout) findViewById(R.id.rl_root);
        // 旋转, 缩放, 渐变
        // 旋转
        RotateAnimation animRotate = new RotateAnimation(0, 360,
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
                0.5f);
        animRotate.setDuration(1000);
        animRotate.setFillAfter(true);

        // 缩放
        ScaleAnimation animScale = new ScaleAnimation(0, 1, 0, 1,
                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
                0.5f);
        animScale.setDuration(1000);//动画持续时间 1秒
        animScale.setFillAfter(true);//ture表示动画结束后停留在动画的最后位置，false表示动画结束后回到初始位置，默认为false。

        // 渐变
        AlphaAnimation animAlpha = new AlphaAnimation(0, 1);
        animAlpha.setDuration(2000);
        animAlpha.setFillAfter(true);

        // 动画集合
        AnimationSet animSet = new AnimationSet(true);
        animSet.addAnimation(animRotate);
        animSet.addAnimation(animScale);
        animSet.addAnimation(animAlpha);

        rlRoot.startAnimation(animSet);

        animSet.setAnimationListener(new AnimationListener() {

            @Override
            public void onAnimationStart(Animation animation) {

            }

            @Override
            public void onAnimationRepeat(Animation animation) {

            }

            @Override
            public void onAnimationEnd(Animation animation) {


                    // 动画结束后跳主页面
                    startActivity(newIntent(getApplicationContext(),MainActivity.class));

                

                finish();
                            }
            }
        });
    }
}