How to perform circular image cropping function

Question

I have a demo which first takes an image from camera than ask user to crop the image.Cropping screen have a rectangle box in middle which on touch of the border of the 4 faces displays 4 arrows at midpoint of the faces to change the size of the box as user wants.As it is the inbuilt mechanism provided by using intent com.android.camera.action.CROP.

I want to make the same thing but for circular window.Which crops circular images.

Do any one have previous experience with this kind of cropping functionality. Please help me out.

Answer 1

Have a look at this function... Is this what you require??

public Bitmap getCroppedBitmap(Bitmap bitmap) {
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());

paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
// canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
canvas.drawCircle(bitmap.getWidth() / 2, bitmap.getHeight() / 2,
        bitmap.getWidth() / 2, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
//Bitmap _bmp = Bitmap.createScaledBitmap(output, 60, 60, false);
//return _bmp;
return output;
}

Check this link.. crop image

If you are using Intents.. try using this

   intent.setType("image/*");
   intent.putExtra("crop", "true");
   intent.putExtra("scale", scale);
   intent.putExtra("return-data", return_data);
   intent.putExtra("circleCrop", true);