android-viewbinding

来源： https://stackoverflow.com/questions/60733289/navigation-with-view-binding

问题 Actual Code: My Main Activity: class MainActivity : AppCompatActivity() { private lateinit var binding: ActivityMainBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMainBinding.inflate(layoutInflater) val rollButton = binding.rollButton rollButton.setOnClickListener { rollDice() } setContentView(binding.root) } private fun rollDice() { val randomDiceRoll = Random.nextInt(6) + 1 Toast.makeText(this, randomDiceRoll.toString(),

问题 I'd like to use try out the ViewBinding with custom view, for example: MainActivity <=> layout_main.xml MyCustomView <=> layout_my_custom_view.xml layout_main.xml <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <com.example.myapplication.MyCustomView android:id="@+id/custom_view" android:layout_width="match_parent" android:layout_height="match_parent" /> </FrameLayout> layout_my_custom_view.xml

问题 I'd like to use try out the ViewBinding with custom view, for example: MainActivity <=> layout_main.xml MyCustomView <=> layout_my_custom_view.xml layout_main.xml <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <com.example.myapplication.MyCustomView android:id="@+id/custom_view" android:layout_width="match_parent" android:layout_height="match_parent" /> </FrameLayout> layout_my_custom_view.xml

问题 I would like to use the new View Binding instead of ButterKnife in my RecyclerView Adapter class ? This is my class : import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.cardview.widget.CardView; import androidx.recyclerview.widget.RecyclerView; import com.gallosalocin.mareu.R; import com.gallosalocin.mareu.model.Meeting; import java

问题 I would like to use the new View Binding instead of ButterKnife in my RecyclerView Adapter class ? This is my class : import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import androidx.annotation.NonNull; import androidx.cardview.widget.CardView; import androidx.recyclerview.widget.RecyclerView; import com.gallosalocin.mareu.R; import com.gallosalocin.mareu.model.Meeting; import java

问题 How does the new ViewBinding compare with the Kotlin Android Extensions with synthetic views bindings? Apart form the NullSafety and TypeSafety provided by new ViewBindings, why should we consider ditching the Kotlin way of using synthetic bindings on Views. Is the new ViewBinding more performat since it generates the Binding class before hand? 回答1: Let's review the two. Configuration Kotlin Android Extensions Import appropriate layout synthetic extensions: import kotlinx.android.synthetic

问题 How does the new ViewBinding compare with the Kotlin Android Extensions with synthetic views bindings? Apart form the NullSafety and TypeSafety provided by new ViewBindings, why should we consider ditching the Kotlin way of using synthetic bindings on Views. Is the new ViewBinding more performat since it generates the Binding class before hand? 回答1: Let's review the two. Configuration Kotlin Android Extensions Import appropriate layout synthetic extensions: import kotlinx.android.synthetic

问题 While working with ViewBinding I come across few not documented cases. First: How to get binding for included generic view layout parts, main binding see only items in main layout? Second: How to get binding for included merge type layout parts, again main binding see only items in main layout? 回答1: In case of: Include with generic layout (not merge node), we need to assign ID to included part, this way in binding we will have access to included sub part <include android:id="@+id/your_id"

问题 While working with ViewBinding I come across few not documented cases. First: How to get binding for included generic view layout parts, main binding see only items in main layout? Second: How to get binding for included merge type layout parts, again main binding see only items in main layout? 回答1: In case of: Include with generic layout (not merge node), we need to assign ID to included part, this way in binding we will have access to included sub part <include android:id="@+id/your_id"