Zoomy Library

Zoomy is an easy to use pinch-to-zoom library for Android.

Getting Started

• You project should build against Android 4.1.x (minSdkVersion 16).

• Add the JitPack repository to your project's build.gradle file:

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

• Add the dependency in your app's build.gradle file:

dependencies {
    implementation 'com.github.moisoni97:Zoomy:2.0.0'
}

Usage

Register the view you want to be zoomable:

Zoomy.Builder builder = new Zoomy.Builder(this).target(imageView);
builder.register();

Unregister the view:

Zoomy.unregister(imageView);

That's all. Now your views can be pinch-zoomed!

Customization

• Use ZoomyConfig to change default configuration flags:

ZoomyConfig config = new ZoomyConfig();
config.setZoomAnimationEnabled(false); //enables zoom out animation when view is released
config.setImmersiveModeEnabled(false); //enables immersive mode when zooming a view

Zoomy.setDefaultConfig(config); //set the configuration across all `Zoomy` registered views

• Zoomy Builder also allows some customization:

Zoomy.Builder builder = new Zoomy.Builder(this)
                    .target(imageView)
                    .enableImmersiveMode(false)
                    .animateZooming(false);

• Add callbacks to listen for specific events:

Zoomy.Builder builder = new Zoomy.Builder(this)
                    .target(imageView)
                    .tapListener(new TapListener() {
                        @Override
                        public void onTap(View v) {
                            //view tapped, do stuff
                        }
                    })
                     .longPressListener(new LongPressListener() {
                        @Override
                        public void onLongPress(View v) {
                            //view long pressed, do stuff
                        }
                    }).doubleTapListener(new DoubleTapListener() {
                        @Override
                        public void onDoubleTap(View v) {
                            //view double tapped, do stuff
                        }
                    })
                    .zoomListener(new ZoomListener() {
                        @Override
                        public void onViewStartedZooming(View view) {
                            //view started zooming
                        }

                        @Override
                        public void onViewEndedZooming(View view) {
                            //view ended zooming
                        }
                    });

• Change the interpolator used to animate ending zoom event:

Zoomy.Builder builder = new Zoomy.Builder(this)
                    .target(imageView)
                    .interpolator(new OvershootInterpolator());

License

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