动画闪屏页

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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);        // 旋转动画        RotateAnimation animRotate = new RotateAnimation(0, 360,                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,                0.5f);        animRotate.setDuration(1000);// 动画时间        animRotate.setFillAfter(true);// 保持动画结束状态        // 缩放动画        ScaleAnimation animScale = new ScaleAnimation(0, 1, 0, 1,                Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,                0.5f);        animScale.setDuration(1000);        animScale.setFillAfter(true);// 保持动画结束状态        // 渐变动画        AlphaAnimation animAlpha = new AlphaAnimation(0, 1);        animAlpha.setDuration(2000);// 动画时间        animAlpha.setFillAfter(true);// 保持动画结束状态        // 动画集合        AnimationSet set = new AnimationSet(true);        set.addAnimation(animRotate);        set.addAnimation(animScale);        set.addAnimation(animAlpha);        // 启动动画        rlRoot.startAnimation(set);        set.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,跳转页面                // 如果是第一次进入, 跳新手引导                // 否则跳主页面                boolean isFirstEnter = PrefUtils.getBoolean(                        SplashActivity.this, "is_first_enter", true);                Intent intent;                if (isFirstEnter) {                    // 新手引导                    intent = new Intent(getApplicationContext(),                            GuideActivity.class);                } else {                    // 主页面                    intent = new Intent(getApplicationContext(),                            MainActivity.class);                }                startActivity(intent);                finish();// 结束当前页面            }        });    }}
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