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我正在準備somecompass活動。 我有我的玫瑰風.png，我想在活動開始時縮放它，並在方向改變後旋轉。縮放和旋轉imageview
問題是，當我縮放我的圖像（僅在onCreate），第一次（也是唯一的）使用旋轉方法後，我的視圖再次調整大小，我不知道爲什麼。
讓我發佈我的旋轉和縮放方法。玫瑰是我的ImageView實例（ImageView玫瑰）
請看看並張貼任何建議。我應該嘗試不同的方式來縮放我的ImageView嗎？
Thx任何幫助！
旋轉（貌似工作正常）
public void rotateRose(float angle){
angle = 360 - angle;
Matrix matrix=new Matrix();
rose.setScaleType(ScaleType.MATRIX);
pivX = rose.getDrawable().getBounds().width()/2;
pivY = rose.getDrawable().getBounds().height()/2;
matrix.preRotate((float) angle, pivX, pivY);
rose.setImageMatrix(matrix);
}
量表（發現source link）
private void scaleImage(ImageView view, int boundBoxInDp)
{
// Get the ImageView and its bitmap
Drawable drawing = view.getDrawable();
Bitmap bitmap = ((BitmapDrawable)drawing).getBitmap();
// Get current dimensions
int width = bitmap.getWidth();
int height = bitmap.getHeight();
// Determine how much to scale: the dimension requiring less scaling is
// closer to the its side. This way the image always stays inside your
// bounding box AND either x/y axis touches it.
float xScale = ((float) boundBoxInDp)/width;
float yScale = ((float) boundBoxInDp)/height;
float scale = (xScale <= yScale) ? xScale : yScale;
// Create a matrix for the scaling and add the scaling data
Matrix matrix = new Matrix();
matrix.postScale(scale, scale);
// Create a new bitmap and convert it to a format understood by the ImageView
Bitmap scaledBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
BitmapDrawable result = new BitmapDrawable(scaledBitmap);
width = scaledBitmap.getWidth();
height = scaledBitmap.getHeight();
// Apply the scaled bitmap
view.setImageDrawable(result);
// Now change ImageView's dimensions to match the scaled image
RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) view.getLayoutParams();
params.width = width;
params.height = height;
view.setLayoutParams(params);
//pivX = width/2;
// pivY = height/2;
}