Android 剪裁图片

1. final Intent intent = newIntent("com.android.camera.action.CROP");
   
2. intent.setClassName("com.android.camera","com.android.camera.CropImage");
   
3. intent.setData(Uri.fromFile(mFile));
   
4. intent.putExtra("outputX", width);
   
5. intent.putExtra("outputY", height);
   
6. intent.putExtra("aspectX", width);
   
7. intent.putExtra("aspectY", height);
   
8. intent.putExtra("scale", true);
   
9. intent.putExtra("noFaceDetection", true);
   
10. intent.putExtra("output", Uri.parse("file:/" +mFile.getAbsolutePath()));
    
11. startActivityForResult(intent, REQUEST_CROP_IMAGE);

 

[Android 硬件]Canvas如何裁剪一个4个角为N度的圆角矩形

 

///////////////////////////////////////////////////////////////////////////////////

 public static Bitmap toRoundCorner(Bitmapbitmap, int pixels) {
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(),bitmap.getHeight());
final RectF rectF = new RectF(rect);
final float roundPx = pixels;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}