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Inflation Injection

Constructor-inject views during XML layout inflation.

Looking for Assisted Inject? It's built in to Dagger now!

Usage

Write your layout XML like normal.

<LinearLayout>
  <com.example.CustomView/>
  <TextView/>
</LinearLayout>

Use @InflationInject in CustomView:

public final class CustomView {
  private final Picasso picasso;
  
  @InflationInject
  public CustomView(
    @Inflated Context context,
    @Inflated AttributeSet attrs,
    Picasso picasso
  ) {
    super(context, attrs);
    this.picasso = picasso;
  }
  
  // ...
}

In order to allow Dagger to create your custom views, add @InflationModule to a Dagger module and add the generated module name to its includes=.

@InflationModule
@Module(includes = InflationInject_PresenterModule.class)
abstract class PresenterModule {}

The annotation processor will generate the InflationInject_PresenterModule for us. It will not be resolved until the processor runs.

Finally, inject InflationInjectFactory and add it to your LayoutInflater.

InflationInjectFactory factory = DaggerMainActivity_MainComponent.create().factory();
getLayoutInflater().setFactory(factory);

setContentView(R.layout.main_view);

Download

repositories {
  mavenCentral()
}
dependencies {
  implementation 'app.cash.inject:inflation-inject:1.0.0'
  annotationProcessor 'app.cash.inject:inflation-inject-processor:1.0.0'
}
Snapshots of the development version are available in Sonatype's snapshots repository.

repositories {
  maven {
    url 'https://oss.sonatype.org/content/repositories/snapshots/'
  }
}
dependencies {
  implementation 'app.cash.inject:inflation-inject:1.1.0-SNAPSHOT'
  annotationProcessor 'app.cash.inject:inflation-inject-processor:1.1.0-SNAPSHOT'
}

License

Copyright 2017 Square, Inc.

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.