android中手勢操作圖片的平移、縮放、旋轉_人人IT網

android.graphics.Bitmap; import android.graphics.Bitmap.Config; import android.graphics.BitmapFactory ... event.getY(1); return FloatMath.sqrt(x * x + y * y); } // 取手勢中心點 private void midPoint(PointF point, MotionEvent event) { float x = event.getX ...

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