/ Images

Image Cropping Library for Android

Image Cropping Library for Android

uCrop

This project aims to provide an ultimate and flexible image cropping experience.

Usage

For a working implementation, please have a look at the Sample Project - sample

Get it on Google Play

  1. Include the library as local library project.

    allprojects {
       repositories {
          jcenter()
          maven { url "https://jitpack.io" }
       }
    }
    

    compile 'com.github.yalantis:ucrop:2.2.2' - lightweight general solution

    compile 'com.github.yalantis:ucrop:2.2.2-native' - get power of the native code to preserve image quality (+ about 1.5 MB to an apk size)

  2. Add UCropActivity into your AndroidManifest.xml

    <activity
        android:name="com.yalantis.ucrop.UCropActivity"
        android:screenOrientation="portrait"
        android:theme="@style/Theme.AppCompat.Light.NoActionBar"/>
    
  3. The uCrop configuration is created using the builder pattern.

    UCrop.of(sourceUri, destinationUri)
        .withAspectRatio(16, 9)
        .withMaxResultSize(maxWidth, maxHeight)
        .start(context);
    
  4. Override onActivityResult method and handle uCrop result.

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK && requestCode == UCrop.REQUEST_CROP) {
            final Uri resultUri = UCrop.getOutput(data);
        } else if (resultCode == UCrop.RESULT_ERROR) {
            final Throwable cropError = UCrop.getError(data);
        }
    }
    
  5. You may want to add this to your PROGUARD config:

    -dontwarn com.yalantis.ucrop**
    -keep class com.yalantis.ucrop** { *; }
    -keep interface com.yalantis.ucrop** { *; }
    

Customization

If you want to let your users choose crop ratio dynamically, just do not call withAspectRatio(x, y).

uCrop builder class has method withOptions(UCrop.Options options) which extends library configurations.

Currently you can change:

  • image compression format (e.g. PNG, JPEG, WEBP), compression
  • image compression quality [0 - 100]. PNG which is lossless, will ignore the quality setting.
  • whether all gestures are enabled simultaneously
  • maximum size for Bitmap that is decoded from source Uri and used within crop view. If you want to override default behaviour.
  • toggle whether to show crop frame/guidelines
  • setup color/width/count of crop frame/rows/columns
  • choose whether you want rectangle or oval crop area
  • the UI colors (Toolbar, StatusBar, active widget state)
  • and more...

Compatibility

  • Library - Android ICS 4.0+ (API 14) (Android GINGERBREAD 2.3+ (API 10) for versions <= 1.3.2)
  • Sample - Android ICS 4.0+ (API 14)
  • CPU - armeabi armeabi-v7a x86 x86_64 arm64-v8a (for versions >= 2.1.2)

GitHub