android how to crop image

We can use image-cropper to crop image on android:

https://github.com/arthurhub/android-image-cropper

add dependency:

dependencies {
    api 'com.theartofdev.edmodo:android-image-cropper:2.8.+'
}

code example:

// start cropping activity for pre-acquired image saved on the device
CropImage.activity(imageUri)
 .start(this);

// for fragment (DO NOT use `getActivity()`)
CropImage.activity()
  .start(getContext(), this);
 
// start picker to get image for cropping and then use the image in cropping activity
CropImage.activity()
  .setGuidelines(CropImageView.Guidelines.ON)
  .start(this);