Android 應用啟動動畫代碼

requestWindowFeature(Window.FEATURE_NO_TITLE);//設置無標題

setContentView(R.layout.activity_main);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);//設置全屏

ImageView welcomeImg = (ImageView) findViewById(R.id.iv);//啟動時顯示的圖片

AlphaAnimation anima = new AlphaAnimation(0.3f, 1.0f);//創建一個透明度從0.3 慢慢到不透明的原圖的動畫效果
anima.setDuration(3000);// 設置動畫顯示時間
welcomeImg.startAnimation(anima);//設置啟動時圖片的動畫
anima.setAnimationListener(new AnimationImpl());//設置動畫監聽

 private class AnimationImpl implements AnimationListener {//動畫監聽

  @Override
  public void onAnimationStart(Animation animation) {
//   welcomeImg.setBackgroundResource(R.drawable.ic_launcher);
  }
  @Override
  public void onAnimationEnd(Animation animation) {
   Intent intent = new Intent(MainActivity.this, OtherActivity.class);
   startActivity(intent);
   finish();
  }
  @Override
  public void onAnimationRepeat(Animation animation) {
  }
 }