安卓TransalteAnimation位圖

Question

我需要繪製在畫布上移動的位圖，我需要通過矩陣從TransalteAnimation

移動它，我有這樣的代碼：

float[] values = new float[9]; 
TranslateAnimation slide = new TranslateAnimation(-100,100, 0, 0); 
slide.setDuration(100); 
slide.setRepeatCount(TranslateAnimation.INFINITE); 
slide.setRepeatMode(TranslateAnimation.REVERSE); 
slide.setFillAfter(true); 
Transformation transform = new Transformation(); 
slide.start(); 
slide.getTransformation(AnimationUtils.currentAnimationTimeMillis(), transform); 
      transform.getMatrix().getValues(values); 

，但它從來沒有改變過，值始終是： [1.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,1.0]

哪裏出錯了？

其作品的任何其他類型的動畫：RotateAnimation，AlphaAnimation和等。它不是工作完全在翻譯動畫

Answer 1

找到答案，它需要調用slide.initialize(0, 0, 0, 0);