Android - 僅在父視圖上播放動畫

Question

如何使動畫僅在父視圖上運行，並保持子視圖不變（即，無需爲它們設置動畫）？

這裏是我的嘗試：

public class TurnButton extends RelativeLayout implements OnClickListener, AnimationListener{ 

    private static final String TAG = TurnButton.class.getSimpleName(); 

    private final int textViewID = 1; 

    public TurnButton(final Context context, final AttributeSet attrs, final int defStyle) { 

     super(context, attrs, defStyle); 
     setEverything(); 
    } 

    public TurnButton(final Context context, final AttributeSet attrs) { 

     super(context, attrs); 
     setEverything(); 
    } 

    public TurnButton(final Context context) { 

     super(context); 
     setEverything(); 
    } 

    private void setEverything(){ 

     setOnClickListener(this); 

     final TextView textViewNumber = new TextView(ThisApplication.getContext()); 
     textViewNumber.setId(textViewID); 
     textViewNumber.setText("30"); 
     textViewNumber.setTextColor(ThisApplication.getContext().getResources().getColor(R.color.white)); 

     final RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); 
     relativeParams.addRule(RelativeLayout.CENTER_IN_PARENT); 

     addView(textViewNumber, relativeParams); 
    } 

    @Override 
    public void onClick(final View view) { 

     final RotateAnimation rotate = new RotateAnimation(view.getRotation(), view.getRotation() - 360.0f, RotateAnimation.RELATIVE_TO_SELF, 0.5f, 
                  RotateAnimation.RELATIVE_TO_SELF, 0.5f); 
     rotate.setDuration(300); 
     rotate.setFillEnabled(true); 
     rotate.setFillAfter(true); 
     view.startAnimation(rotate); 

     view.findViewById(textViewID).setRotation(0); 
    } 
} 

我想旋轉TurnButton視圖不旋轉的TextView我在它的中心增加。

Answer 1

它通過施加反向旋轉到子視圖（TextView的）：

@Override 
public void onClick(final View view) { 

    final RotateAnimation rotate = new RotateAnimation(view.getRotation(), 
      view.getRotation() - 360.0f, RotateAnimation.RELATIVE_TO_SELF, 0.5f, 
      RotateAnimation.RELATIVE_TO_SELF, 0.5f); 
    rotate.setDuration(300); 
    rotate.setFillEnabled(true); 
    rotate.setFillAfter(true); 
    view.startAnimation(rotate); 

    final TextView textView = (TextView)view.findViewById(textViewID); 
    final RotateAnimation reverseRotate = new RotateAnimation(view.getRotation(), 
      360.0f - view.getRotation(), RotateAnimation.RELATIVE_TO_SELF, 0.5f, 
      RotateAnimation.RELATIVE_TO_SELF, 0.5f); 
    reverseRotate.setDuration(300); 
    reverseRotate.setFillEnabled(true); 
    reverseRotate.setFillAfter(true); 
    textView.startAnimation(reverseRotate); 
}