idapgroup / argumentdelegate

Property binding for Android Bundle arguments.

Argument Delegate

Property binding for Android Bundle arguments. Written for simple bundle unpacking for Kotlin users.

Download

Add repository to your root build.gradle

repositories {
    jcenter()
}

dependencies {
  implementation 'com.idapgroup:argument-delegate:latest-version'
}

Usage sample

class ExampleActivity : Activity {

    val userName: String by argumentDelegate()
    
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        // your activity setup code
        Log.d("ExampleActivity", "userName - $userName")
    }

}

Remember: Bundled argument name must have the same name as property have. For current example:

val bundle = Bundle().apply {
    putString("userName", "John")
}

Additional info

argumentDelegate is an extension function for Fragment and Activity. If you want to use it out of the Activity/Fragment then you should implement argumentWrapper block. Example:

class Example {
    private lateinit var bundle: Bundle
    private val wrapper = { a: Example -> a.bundle }
    val userName: String by argumentDelegate(wrapper)
}