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2014/10/16 ¤W¤È 08:21:27
android Programming Glossary: pivotpointxAndroid Image View Pinch Zooming http://stackoverflow.com/questions/10630373/android-image-view-pinch-zooming null canvas.save canvas.translate mPosX mPosY Matrix matrix new Matrix matrix.postScale mScaleFactor mScaleFactor pivotPointX pivotPointY canvas.setMatrix matrix canvas.drawBitmap BitmapDrawable this.getDrawable .getBitmap matrix null this.getDrawable.. Math.min float getLayoutParams .width borderWidth width float getLayoutParams .height borderWidth height pivotPointX float getLayoutParams .width borderWidth int width mScaleFactor 2 pivotPointY float getLayoutParams .height borderWidth.. pivotPointY float getLayoutParams .height borderWidth int height mScaleFactor 2 super.setImageDrawable drawable float pivotPointX 0f float pivotPointY 0f private class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener @Override..
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