如何在Android中創建移動/調整動畫大小？

Question

有人知道Android動畫嗎？我想要創建如下內容：

• 我在設備屏幕的中心有一個大圖像;
• 這個圖像變得很小（通過動畫），並轉到我的設備屏幕的一角;

它像在這種波紋管順序：

任何提示將是非常讚賞！提前致謝！

Answer 1

使用ViewPropertyAnimator，使用方法如scaleXBy()和translateYBy()。您通過在API Level 11+上的View上致電animate()獲得ViewPropertyAnimator。如果您支持較舊的設備，則NineOldAndroids可提供接近工作的回送。

您可能還希望閱讀：

• http://android-developers.blogspot.com/2011/05/introducing-viewpropertyanimator.html
• http://developer.android.com/guide/topics/graphics/prop-animation.html

Answer 2

我與同步旋轉和運動的一類。這是昂貴的，但它適用於所有API版本。

public class ResizeMoveAnimation extends Animation { 
    View view; 
    int fromLeft; 
    int fromTop; 
    int fromRight; 
    int fromBottom; 
    int toLeft; 
    int toTop; 
    int toRight; 
    int toBottom; 

    public ResizeMoveAnimation(View v, int toLeft, int toTop, int toRight, int toBottom) { 
     this.view = v; 
     this.toLeft = toLeft; 
     this.toTop = toTop; 
     this.toRight = toRight; 
     this.toBottom = toBottom; 

     fromLeft = v.getLeft(); 
     fromTop = v.getTop(); 
     fromRight = v.getRight(); 
     fromBottom = v.getBottom(); 

     setDuration(500); 
    } 

    @Override 
    protected void applyTransformation(float interpolatedTime, Transformation t) { 

     float left = fromLeft + (toLeft - fromLeft) * interpolatedTime; 
     float top = fromTop + (toTop - fromTop) * interpolatedTime; 
     float right = fromRight + (toRight - fromRight) * interpolatedTime; 
     float bottom = fromBottom + (toBottom - fromBottom) * interpolatedTime; 

     RelativeLayout.LayoutParams p = (LayoutParams) view.getLayoutParams(); 
     p.leftMargin = (int) left; 
     p.topMargin = (int) top; 
     p.width = (int) ((right - left) + 1); 
     p.height = (int) ((bottom - top) + 1); 

     view.requestLayout(); 
    } 
}