Merge pull request #118 from gradle/tt/support-data-binding-in-android

Add viewBinding and dataBinding support for Android Applications

unified-prototype/unified-plugin/plugin-android/src/integTest/groovy/org/gradle/api/experimental/android/AndroidApplicationSpec.groovy

@@ -0,0 +1,98 @@
+package org.gradle.api.experimental.android
+
+import org.gradle.test.fixtures.AbstractSpecification
+
+class AndroidApplicationSpec extends AbstractSpecification {
+    def 'can create an android application using viewBinding that generates an activity binding class'() {
+        given:
+        buildFile << """
+            androidApplication {
+                jdkVersion = 17
+                compileSdk = 34
+                
+                namespace = "org.example.android.application"
+
+                viewBinding {
+                    enabled = true
+                }
+                
+                dependencies {
+                    implementation("androidx.appcompat:appcompat:1.6.1")
+                    implementation("com.google.android.material:material:1.10.0")
+                }
+            }
+        """
+
+        file("src/main/res/layout/activity_main.xml").text = """<?xml version="1.0" encoding="utf-8"?>
+            <androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                xmlns:app="http://schemas.android.com/apk/res-auto"
+                xmlns:tools="http://schemas.android.com/tools"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:fitsSystemWindows="true"
+                tools:context=".MainActivity">
+            </androidx.coordinatorlayout.widget.CoordinatorLayout>
+        """
+
+        file("src/main/java/org/example/android/application/MainActivity.java").text = """
+            package org.example.android.application;
+            
+            import androidx.appcompat.app.AppCompatActivity;
+            import org.example.android.application.databinding.ActivityMainBinding;
+            
+            class MainActivity extends AppCompatActivity {
+                private ActivityMainBinding binding;
+            }
+        """
+
+        file("src/main/AndroidManifest.xml").text = """<?xml version="1.0" encoding="utf-8"?>
+            <manifest/>
+        """
+
+        file("gradle.properties").text = """
+            android.useAndroidX=true
+        """
+
+        expect:
+        succeeds(":build")
+    }
+
+    def 'can create an android application using dataBinding'() {
+        given:
+        buildFile << """
+            androidApplication {
+                jdkVersion = 17
+                compileSdk = 34
+                
+                namespace = "org.example.android.application"
+
+                dataBinding {
+                    enabled = true
+                }
+            }
+        """
+
+        file("src/main/AndroidManifest.xml").text = """<?xml version="1.0" encoding="utf-8"?>
+            <manifest/>
+        """
+
+        expect:
+        succeeds(":build")
+    }
+
+    def setup() {
+        settingsFile << """
+            plugins {
+                id("org.gradle.experimental.android-ecosystem")
+            }
+    
+            dependencyResolutionManagement {
+                repositories {
+                    mavenCentral()
+                }
+            }
+    
+            rootProject.name = "example"
+        """
+    }
+}

unified-prototype/unified-plugin/plugin-android/src/main/java/org/gradle/api/experimental/android/application/AndroidApplication.java

@@ -19,8 +19,10 @@
 import com.android.build.api.dsl.ApplicationBaseFlavor;
 import org.gradle.api.Action;
 import org.gradle.api.experimental.android.AndroidSoftware;
+import org.gradle.api.experimental.android.extensions.DataBinding;
 import org.gradle.api.experimental.android.extensions.DependencyGuard;
 import org.gradle.api.experimental.android.extensions.Firebase;
+import org.gradle.api.experimental.android.extensions.ViewBinding;
 import org.gradle.api.experimental.android.nia.DimensionStrategy;
 import org.gradle.api.experimental.android.nia.Flavors;
 import org.gradle.api.provider.Property;
@@ -97,4 +99,20 @@ default void flavors(Action<? super Flavors> action) {
     default void missingDimensionStrategy(Action<? super DimensionStrategy> action) {
         action.execute(getMissingDimensionStrategy());
     }
+
+    @Nested
+    ViewBinding getViewBinding();
+
+    @Configuring
+    default void viewBinding(Action<? super ViewBinding> action) {
+        action.execute(getViewBinding());
+    }
+
+    @Nested
+    DataBinding getDataBinding();
+
+    @Configuring
+    default void dataBinding(Action<? super DataBinding> action) {
+        action.execute(getDataBinding());
+    }
 }

unified-prototype/unified-plugin/plugin-android/src/main/java/org/gradle/api/experimental/android/application/StandaloneAndroidApplicationPlugin.java

@@ -43,6 +43,8 @@ public void apply(Project project) {
         dslModel.getBuildTypes().getRelease().getApplicationIdSuffix().convention((String) null);
 
         dslModel.getFlavors().getEnabled().convention(false);
+        dslModel.getViewBinding().getEnabled().convention(false);
+        dslModel.getDataBinding().getEnabled().convention(false);
 
         // Register an afterEvaluate listener before we apply the Android plugin to ensure we can
         // run actions before Android does.
@@ -70,6 +72,9 @@ private void linkDslModelToPlugin(Project project, AndroidApplication dslModel)
             return null;
         });
 
+        android.getBuildFeatures().setViewBinding(dslModel.getViewBinding().getEnabled().get());
+        android.getBuildFeatures().setDataBinding(dslModel.getDataBinding().getEnabled().get());
+
         // TODO:DG All this configuration should be moved to the NiA project
         if (NiaSupport.isNiaProject(project)) {
             NiaSupport.configureNiaApplication(project, dslModel);

unified-prototype/unified-plugin/plugin-android/src/main/java/org/gradle/api/experimental/android/extensions/DataBinding.java

@@ -0,0 +1,10 @@
+package org.gradle.api.experimental.android.extensions;
+
+import org.gradle.api.provider.Property;
+import org.gradle.declarative.dsl.model.annotations.Restricted;
+
+@Restricted
+public interface DataBinding {
+    @Restricted
+    Property<Boolean> getEnabled();
+}

unified-prototype/unified-plugin/plugin-android/src/main/java/org/gradle/api/experimental/android/extensions/ViewBinding.java

@@ -0,0 +1,10 @@
+package org.gradle.api.experimental.android.extensions;
+
+import org.gradle.api.provider.Property;
+import org.gradle.declarative.dsl.model.annotations.Restricted;
+
+@Restricted
+public interface ViewBinding {
+    @Restricted
+    Property<Boolean> getEnabled();
+}