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Android自定义可缩放、旋转、平移图片的ImageView

点击查看：https://github.com/YC1995/CustomImageViewProject

修改图片显示位置：居中

//改变初始化位置
private void initImagePositionAndSize() {
mCurrentMatrix.reset();
upDateBoundRectF();
float scaleFactor = Math.min(getWidth() / mBoundRectF.width(), getHeight() / mBoundRectF.height());
mInitialScaleFactor = scaleFactor;
mTotalScaleFactor *= scaleFactor;

    mCurrentMatrix.postScale(scaleFactor, scaleFactor, mBoundRectF.centerX(), mBoundRectF.centerY());  int imageH = getDrawable().getIntrinsicHeight();     int imageW = getDrawable().getIntrinsicWidth(); //     int dx = getWidth() / 2 -imageW / 2;    int dy = getHeight() / 2 - imageH / 2;    mCurrentMatrix.postTranslate(dx, dy);    transform();}