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[databinding] Add example that builds with data binding
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‎examples/databinding/.bazelrc‎

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common:core_library_desugaring --desugar_java8_libs
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common --java_runtime_version=remotejdk_17
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common --tool_java_runtime_version=remotejdk_17
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# Flags to enable mobile-install v3
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mobile-install --mode=skylark --mobile_install_aspect=@rules_android//mobile_install:mi.bzl --mobile_install_supported_rules=android_binary
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# Required to invoke the Studio deployer jar
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mobile-install --tool_java_runtime_version=17

‎examples/databinding/.gitignore‎

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*.lock

‎examples/databinding/BUILD‎

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# Empty build file to satisfy gazelle for rules_go.

‎examples/databinding/MODULE.bazel‎

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module(
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name = "databinding",
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)
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bazel_dep(name = "rules_java", version = "7.12.2")
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bazel_dep(name = "bazel_skylib", version = "1.3.0")
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bazel_dep(name = "rules_jvm_external", version = "6.6")
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bazel_dep(
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name = "rules_android",
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version = "0.6.3",
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)
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local_path_override(
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module_name = "rules_android",
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path = "../../",
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)
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remote_android_extensions = use_extension(
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"@rules_android//bzlmod_extensions:android_extensions.bzl",
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"remote_android_tools_extensions")
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use_repo(remote_android_extensions, "android_gmaven_r8", "android_tools")
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android_sdk_repository_extension = use_extension("@rules_android//rules/android_sdk_repository:rule.bzl", "android_sdk_repository_extension")
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use_repo(android_sdk_repository_extension, "androidsdk")
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register_toolchains("@androidsdk//:sdk-toolchain", "@androidsdk//:all")
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maven = use_extension("@rules_jvm_external//:extensions.bzl", "maven")
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maven.install(
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name = "maven",
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aar_import_bzl_label = "@rules_android//rules:rules.bzl",
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artifacts = [
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"androidx.annotation:annotation-jvm:1.9.1",
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"androidx.databinding:databinding-runtime:8.7.0",
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],
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repositories = [
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"https://maven.google.com",
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"https://repo1.maven.org/maven2",
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"https://repo.gradle.org/gradle/libs-releases",
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],
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# To generate, run:
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# REPIN=1 bazelisk run --enable_bzlmod @maven//:pin
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# lock_file = "//:maven_install.json",
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use_starlark_android_rules = True,
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)
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use_repo(
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maven,
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"maven",
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)

‎examples/databinding/README.md‎

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To build, ensure that the `ANDROID_HOME` environment variable is set to the path
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to an Android SDK, and run:
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```
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bazel build java/com/basicapp:basic_app
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```
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See the `.bazelrc` file for flags needed to build the app.

‎examples/databinding/WORKSPACE‎

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local_repository(
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name = "rules_android",
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path = "../..", # rules_android's WORKSPACE relative to this inner workspace
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)
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# --SNIP--: Everything below this line goes into the example WORKSPACE snippet in the release notes.
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# Android rules dependencies
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load("@rules_android//:prereqs.bzl", "rules_android_prereqs")
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rules_android_prereqs()
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##### rules_java setup for rules_android #####
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load("@rules_java//java:rules_java_deps.bzl", "rules_java_dependencies")
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rules_java_dependencies()
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# note that the following line is what is minimally required from protobuf for the java rules
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# consider using the protobuf_deps() public API from @com_google_protobuf//:protobuf_deps.bzl
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load("@com_google_protobuf//bazel/private:proto_bazel_features.bzl", "proto_bazel_features") # buildifier: disable=bzl-visibility
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proto_bazel_features(name = "proto_bazel_features")
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# register toolchains
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load("@rules_java//java:repositories.bzl", "rules_java_toolchains")
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rules_java_toolchains()
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##### rules_jvm_external setup for rules_android #####
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load("@rules_jvm_external//:repositories.bzl", "rules_jvm_external_deps")
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rules_jvm_external_deps()
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load("@rules_jvm_external//:setup.bzl", "rules_jvm_external_setup")
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rules_jvm_external_setup()
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load("@rules_jvm_external//:defs.bzl", "maven_install")
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maven_install(
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name = "maven",
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artifacts = [
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"androidx.annotation:annotation-jvm:1.9.1",
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"androidx.databinding:databinding-runtime:8.7.0",
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"com.google.protobuf:protobuf-java:4.27.2",
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"com.google.protobuf:protobuf-java-util:4.27.2",
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],
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repositories = [
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"https://maven.google.com",
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"https://repo1.maven.org/maven2",
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"https://repo.gradle.org/gradle/libs-releases",
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],
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)
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##### rules_android setup #####
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load("@rules_android//:defs.bzl", "rules_android_workspace")
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rules_android_workspace()
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# Android SDK setup
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load("@rules_android//rules:rules.bzl", "android_sdk_repository")
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android_sdk_repository(
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name = "androidsdk",
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)
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register_toolchains(
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"@rules_android//toolchains/android:android_default_toolchain",
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"@rules_android//toolchains/android_sdk:android_sdk_tools",
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)

‎examples/databinding/WORKSPACE.bzlmod‎

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workspace(name = "basicapp")

‎examples/databinding/java/com/databindingapp/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.databindingapp" >
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<uses-sdk
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android:minSdkVersion="21"
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android:targetSdkVersion="30" />
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<application
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android:allowBackup="true"
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android:icon="@drawable/ic_launcher"
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android:label="@string/app_name" >
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<activity
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android:name="com.databindingapp.DataBindingMainActivity"
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android:exported="true">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎examples/databinding/java/com/databindingapp/BUILD‎

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load("@rules_android//android:rules.bzl", "android_binary", "android_library")
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android_binary(
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name = "databindingapp",
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manifest = "AndroidManifest.xml",
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enable_data_binding = True,
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deps = [
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":databinding_lib",
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"@maven//:androidx_databinding_databinding_runtime",
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],
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)
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android_library(
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name = "databinding_lib",
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srcs = ["DataBindingMainActivity.java"],
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manifest = "AndroidManifest.xml",
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resource_files = glob(["res/**"]),
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enable_data_binding = True,
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deps = [
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"@maven//:androidx_annotation_annotation_jvm",
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"@maven//:androidx_databinding_databinding_runtime",
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],
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)

‎examples/databinding/java/com/databindingapp/DataBindingMainActivity.java‎

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// Copyright 2022 The Bazel Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.databindingapp;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.Menu;
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import android.view.View;
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import android.widget.Button;
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import android.widget.TextView;
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import com.databindingapp.databinding.ActivityDataBindingBinding;
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import java.util.Random;
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/**
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* The main activity of the Basic Sample App.
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*/
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public class DataBindingMainActivity extends Activity {
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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ActivityDataBindingBinding binding = ActivityDataBindingBinding.inflate(getLayoutInflater());
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Random random = new Random();
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binding.setShowFizz(random.nextDouble() < 0.5);
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binding.setShowBuzz(random.nextDouble() < 0.5);
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setContentView(binding.getRoot());
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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// Inflate the menu; this adds items to the action bar if it is present.
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getMenuInflater().inflate(R.menu.menu, menu);
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return true;
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}
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}

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