YashishDua

<resources>
  <string name="app_name">
    My Application
  </string>
</resources>

YashishDua

<resources>
  <string 
    name="app_name"
    tools:ignore="MissingTranslation">
    My Application
  </string>
</resources>

YashishDua

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
    tools:shrinkMode="strict" />

</resources>

YashishDua

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
    tools:keep="@layout/used_1,@layout/used_2"
    tools:discard="@layout/unused_1" />

YashishDua

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    tools:text="@tools:sample/lorem" />

YashishDua

#FF4336
#9727BO
#673AB7

YashishDua

class WallFragment : Fragment() {

    companion object {
        fun newInstance() = WallFragment()
    }

    private lateinit var fragmentListener: FragmentListener

    override fun onAttach(context: Context?) {
        super.onAttach(context)

YashishDua

class MainActivity : AppCompatActivity(), FragmentListener {  
  // ...

  override fun handleOnClick() {
      // Action to implement
  }
}

YashishDua

interface FragmentListener {
  fun handleOnClick()
}

YashishDua

class SharedViewModel : ViewModel() {
    val data = MutableLiveData<Item>()

    fun data(item: Item) {
        data.value = item
    }
}