add details

Author: solygambas

10-mars-photos/app/src/main/java/com/example/android/marsphotos/detail/DetailViewModel.kt

@@ -4,6 +4,8 @@ import android.app.Application
 import androidx.lifecycle.AndroidViewModel
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Transformations
+import com.example.android.marsphotos.R
 import com.example.android.marsphotos.network.MarsPhoto
 
 class DetailViewModel(marsProperty: MarsPhoto, app: Application) : AndroidViewModel(app) {
@@ -14,4 +16,22 @@ class DetailViewModel(marsProperty: MarsPhoto, app: Application) : AndroidViewMo
     init {
         _selectedProperty.value = marsProperty
     }
+
+    val displayPropertyPrice = Transformations.map(selectedProperty) {
+        app.applicationContext.getString(
+            when (it.isRental) {
+                true -> R.string.display_price_monthly_rental
+                false -> R.string.display_price
+            }, it.price
+        )
+    }
+
+    val displayPropertyType = Transformations.map(selectedProperty) {
+        app.applicationContext.getString(R.string.display_type,
+        app.applicationContext.getString(
+                when (it.isRental) {
+                    true -> R.string.type_rent
+                    false -> R.string.type_sale
+                }))
+    }
 }

10-mars-photos/app/src/main/res/layout/fragment_detail.xml

@@ -38,7 +38,7 @@
                 android:layout_marginTop="16dp"
                 android:textColor="#de000000"
                 android:textSize="39sp"
-                android:text="nothing"
+                android:text="@{viewModel.displayPropertyType}"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/main_photo_image"
                 tools:text="To Rent" />
@@ -50,7 +50,7 @@
                 android:layout_marginTop="8dp"
                 android:textColor="#de000000"
                 android:textSize="20sp"
-                android:text="nothing"
+                android:text="@{viewModel.displayPropertyPrice}"
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@+id/property_type_text"
                 tools:text="$100,000" />