Cropped Image size in Android is constant

问题

I am cropping an image in circular fashion and using below code while creating the intent

    intent.setData(mImageCaptureUri);
    intent.putExtra("outputX", 200);
    intent.putExtra("outputY", 200);
    intent.putExtra("aspectX", 1);
    intent.putExtra("aspectY", 1);

Since I am using outputX = 200, I am getting width and height of every cropped image as 200 and 200 , no matter how much I zoom-in or zoom out.

Below shown both images have different zoom ratio but still return same height and width.

 width  = bitmap.getWidth(); 

Can someone please tell me what parameter should I use in line

intent.putExtra("outputX", 200);

so that I get the TRUE width and height(not the 200 in each case) of cropped image.

回答1:

Didn't know this was the issue when I answered the your earlier question. I believe the answer you are looking for should be:

intent.setData(mImageCaptureUri);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
intent.putExtra("scale", false);

Make sure you set the parameter scale to false. It defaults to true.

PS Since Android is open source and the camera + crop app is a part of the OS, all I am doing is reading the source. The file you should be looking at is here. Check out variable mScale to see how the parameter is being used.

来源：https://stackoverflow.com/questions/19699496/cropped-image-size-in-android-is-constant