圖像不會隱形

Question

iI想讓圖像從屏幕的左側移動到右側，然後消失 translateanimation的作品。但與

img.setVisibility（View.GONE）;

一切都消失了，不僅形象。

public class MainActivity extends Activity 
{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     final ImageView img = (ImageView) findViewById(R.id.img_animation); 

     wander(img); 

     img.setVisibility(View.GONE); 
    } 

    public void wander(ImageView img) 
    { 
     TranslateAnimation animation = new TranslateAnimation(0.0f, 400.0f,0.0f, 0.0f); 
     animation.setDuration(500); 
     animation.setRepeatCount(1); 
     animation.setRepeatMode(1); 
     animation.setFillAfter(true); 
     img.startAnimation(animation); 
    } 
} 

Answer 1

您當前的代碼啓動動畫，然後隱藏您的圖像而不等待動畫完成。使用這樣的監聽器來確定動畫結束。

public class MainActivity extends Activity 
{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     final ImageView img = (ImageView) findViewById(R.id.img_animation); 

     wander(img); 
    } 

    public void wander(ImageView img) 
    { 
     TranslateAnimation animation = new TranslateAnimation(0.0f, 400.0f,0.0f, 0.0f); 
     animation.setDuration(500); 
     animation.setRepeatCount(1); 
     animation.setRepeatMode(1); 
     animation.setFillAfter(false); 
     animation.setAnimationListener(new Animation.AnimationListener() { 
      @Override 
      public void onAnimationStart(Animation animation) { 
      } 

      @Override 
      public void onAnimationEnd(Animation animation) { 
       final ImageView img = (ImageView) findViewById(R.id.img_animation); 
       img.setVisibiltiy(View.GONE); 
      } 

      @Override 
      public void onAnimationRepeat(Animation animation) { 
      } 
     }); 
     img.startAnimation(animation); 
    } 
} 

欲瞭解更多信息： Android Animation Listener