🚨How to migrate from ArthurHub/Android-Image-Cropper🚨

Java Sample Code

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• Contributing Guide

Android Image Cropper

Powerful (Zoom, Rotation, Multi-Source); Customizable (Shape, Limits, Style); Optimized (Async, Sampling, Matrix); Simple image cropping library for Android.

Add to your project

See GitHub Wiki for more info.

Step 1. Add the JitPack repository to your root build.gradle

  allprojects {
     repositories {
       ....
       maven { url 'https://jitpack.io' }
     }
  }

Step 2. Add the dependency

  dependencies {
       implementation 'com.github.CanHub:Android-Image-Cropper:${version}'
  }

Latest Release Version

Step 3. Add permissions to manifest

Only need if you run on devices under OS10 (SDK 29)

<manifest>
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
       android:maxSdkVersion="28" />
</manifest>

Step 4. Set source compatibility version to Java 11

• The library is up to date with the latest releases, if you are not using Java 11 yet please check the release page for previous working versions.

• Go to app level build.gradle file

• Add this line inside android in build.gradle

   compileOptions {
       sourceCompatibility JavaVersion.VERSION_11
       targetCompatibility JavaVersion.VERSION_11
   }
  
   kotlinOptions {
       jvmTarget = JavaVersion.VERSION_11.toString()
   }

• This expects Gradle 7.0+

Using the Library

There is 3 ways of using the library:

• Calling crop directly (Sample code: sample/crop_image)
• Using the CropView (Sample code: sample/crop_image_view)
• Extending the activity (Sample code: sample/extend_activity) Your choice depends on how you want your layout to look.

Obs: The library has a public pick image contract, more on wiki.

Calling crop directly

• Register for activity result with CropImageContract

class MainActivity {
   private val cropImage = registerForActivityResult(CropImageContract()) { result ->
           if (result.isSuccessful) {
               // use the returned uri
               val uriContent = result.uriContent 
               val uriFilePath = result.getUriFilePath(context) // optional usage
           } else {
               // an error occurred
               val exception = result.error
           }
       }

   private fun startCrop() {
       // start picker to get image for cropping and then use the image in cropping activity
       cropImage.launch(
           options {
               setGuidelines(Guidelines.ON)
           }
       )

       //start picker to get image for cropping from only gallery and then use the image in
       //cropping activity
       cropImage.launch(
           options {
               setImagePickerContractOptions(
                   PickImageContractOptions(includeGallery = true, includeCamera = false)
               )
           }
       )

       // start cropping activity for pre-acquired image saved on the device and customize settings
       cropImage.launch(
           options(uri = imageUri) {
               setGuidelines(Guidelines.ON)
               setOutputCompressFormat(CompressFormat.PNG)
           }
       )
   }
}

Using CropView

2. Add CropImageView into your activity

<!-- Image Cropper fill the remaining available height -->
<com.canhub.cropper.CropImageView
  android:id="@+id/cropImageView"
  android:layout_width="match_parent"
  android:layout_height="0dp"
  android:layout_weight="1"/>

3. Set image to crop

cropImageView.setImageUriAsync(uri)
// or (prefer using uri for performance and better user experience)
cropImageView.setImageBitmap(bitmap)

4. Get cropped image

// subscribe to async event using cropImageView.setOnCropImageCompleteListener(listener)
cropImageView.getCroppedImageAsync()
// or
val cropped: Bitmap = cropImageView.getCroppedImage()

Extend to make a custom activity

If you want to extend the CropImageActivity please be aware you will need to setup your CropImageView You can check a sample code in this project com.canhub.cropper.sample.extend_activity.app.SExtendActivity

• Add CropImageActivity into your AndroidManifest.xml

<activity android:name="com.canhub.cropper.CropImageActivity"
  android:theme="@style/Base.Theme.AppCompat"/> <!-- optional (needed if default theme has no action bar) -->

• Setup your CropImageView after call super.onCreate(savedInstanceState)

override fun onCreate(savedInstanceState: Bundle?) {
   super.onCreate(savedInstanceState)
   setCropImageView(binding.cropImageView)
}

Custom dialog for image source pick

When calling crop directly the library will prompt a dialog for the user choose between gallery or camera (If you keep both enable). We use the Android default AlertDialog for this. If you wanna customised it with your app theme you need to override the method showImageSourceDialog(..) when extending the activity (above)

override fun showImageSourceDialog(openSource: (Source) -> Unit) {
     super.showImageSourceDialog(openCamera)
}

Features

• Built-in CropImageActivity.
• Set cropping image as Bitmap, Resource or Android URI (Gallery, Camera, Dropbox, etc.).
• Image rotation/flipping during cropping.
• Auto zoom-in/out to relevant cropping area.
• Auto rotate bitmap by image Exif data.
• Set result image min/max limits in pixels.
• Set initial crop window size/location.
• Request cropped image resize to specific size.
• Bitmap memory optimization, OOM handling (should never occur)!
• API Level 14.
• More..

Customizations

• Cropping window shape: Rectangular, Oval (square/circle by fixing aspect ratio), as well as rectangular modes which only allow vertical or horizontal cropping.
• Cropping window aspect ratio: Free, 1:1, 4:3, 16:9 or Custom.
• Guidelines appearance: Off / Always On / Show on Touch.
• Cropping window Border line, border corner and guidelines thickness and color.
• Cropping background color.

For more information, see the GitHub Wiki.

Posts

• Android cropping image from camera or gallery
• Android Image Cropper async support and custom progress UI
• Adding auto-zoom feature to Android-Image-Cropper

License

Forked from ArthurHub Originally forked from edmodo/cropper.

Copyright 2016, Arthur Teplitzki, 2013, Edmodo, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with the License. You may obtain a copy of the License in the LICENSE file, or at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.