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Android test examples
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‎testing.android.vogella.com.asynctask/.gitignore‎

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.gradle
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/local.properties
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/.idea/workspace.xml
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/.idea/libraries
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.DS_Store
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/build
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/captures

‎testing.android.vogella.com.asynctask/app/.gitignore‎

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/build

‎testing.android.vogella.com.asynctask/app/build.gradle‎

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apply plugin: 'com.android.application'
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android {
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compileSdkVersion 22
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buildToolsVersion '22.0.1'
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defaultConfig {
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applicationId "testing.android.vogella.com.asynctask"
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minSdkVersion 15
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targetSdkVersion 22
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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}
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dependencies {
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compile fileTree(dir: 'libs', include: ['*.jar'])
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compile 'com.android.support:appcompat-v7:22.2.0'
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androidTestCompile 'junit:junit:4.12'
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androidTestCompile 'com.android.support.test:runner:0.3'
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androidTestCompile 'com.android.support.test:rules:0.3'
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androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2'
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androidTestCompile 'com.android.support.test.espresso:espresso-intents:2.2'
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}

‎testing.android.vogella.com.asynctask/app/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# By default, the flags in this file are appended to flags specified
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# in /home/vogella/android-sdks/tools/proguard/proguard-android.txt
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# You can edit the include path and order by changing the proguardFiles
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# directive in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# Add any project specific keep options here:
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}

‎testing.android.vogella.com.asynctask/app/src/androidTest/java/testing/android/vogella/com/asynctask/ApplicationTest.java‎

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package testing.android.vogella.com.asynctask;
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import android.app.Application;
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import android.test.ApplicationTestCase;
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/**
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* <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
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*/
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public class ApplicationTest extends ApplicationTestCase<Application> {
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public ApplicationTest() {
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super(Application.class);
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}
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}

‎testing.android.vogella.com.asynctask/app/src/androidTest/java/testing/android/vogella/com/asynctask/EspressoTest.java‎

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package testing.android.vogella.com.asynctask;
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import android.content.Context;
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import android.support.test.InstrumentationRegistry;
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import android.support.test.rule.ActivityTestRule;
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import android.support.test.runner.AndroidJUnit4;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.rules.TestName;
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import org.junit.runner.RunWith;
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import static android.support.test.espresso.Espresso.onView;
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import static android.support.test.espresso.action.ViewActions.click;
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import static android.support.test.espresso.assertion.ViewAssertions.matches;
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import static android.support.test.espresso.matcher.ViewMatchers.withId;
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import static android.support.test.espresso.matcher.ViewMatchers.withText;
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@RunWith(AndroidJUnit4.class)
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public class EspressoTest {
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@Rule
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public MyCustomRule myRule = new MyCustomRule();
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@Rule
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public ActivityTestRule<MainActivity> mActivityRule =
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new ActivityTestRule<>(MainActivity.class);
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@Test
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public void buttonShouldUpdateText(){
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onView(withId(getResourceId("update"))).perform(click());
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onView(withId(R.id.text)).check(matches(withText("Done")));
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}
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@Test
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public void buttonShouldUpdateText2(){
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onView(withId(getResourceId("update"))).perform(click());
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onView(withId(R.id.text)).check(matches(withText("Done")));
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}
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private static int getResourceId(String s) {
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Context targetContext = InstrumentationRegistry.getTargetContext();
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String packageName = targetContext.getPackageName();
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return targetContext.getResources().getIdentifier(s, "id", packageName);
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}
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}

‎testing.android.vogella.com.asynctask/app/src/androidTest/java/testing/android/vogella/com/asynctask/MyCustomRule.java‎

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package testing.android.vogella.com.asynctask;
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import android.util.Log;
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import org.junit.rules.TestRule;
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import org.junit.runner.Description;
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import org.junit.runners.model.Statement;
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public class MyCustomRule implements TestRule {
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private Statement base;
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private Description description;
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@Override
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public Statement apply(Statement base, Description description) {
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this.base = base;
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this.description = description;
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return new MyStatement(base);
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}
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public class MyStatement extends Statement {
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private final Statement base;
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public MyStatement(Statement base) {
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this.base = base;
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}
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@Override
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public void evaluate() throws Throwable {
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Log.w("MyCustomRule",description.getMethodName() + "Started");
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try {
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base.evaluate();
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} finally {
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Log.w("MyCustomRule",description.getMethodName() + "Finished");
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}
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}
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}
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}

‎testing.android.vogella.com.asynctask/app/src/main/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="testing.android.vogella.com.asynctask" >
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:theme="@style/AppTheme" >
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<activity
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android:name=".MainActivity"
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android:label="@string/app_name" >
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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>

‎testing.android.vogella.com.asynctask/app/src/main/java/testing/android/vogella/com/asynctask/MainActivity.java‎

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package testing.android.vogella.com.asynctask;
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import android.app.Activity;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.TextView;
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public class MainActivity 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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setContentView(R.layout.activity_main);
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}
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public void onClick(View view) {
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TextView textView = (TextView) findViewById(R.id.text);
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textView.setText("Running");
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myTask.execute("test");
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}
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final AsyncTask<String, Void, String> myTask = new AsyncTask<String, Void, String>() {
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@Override
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protected String doInBackground(String... arg0) {
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return "Long running stuff";
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}
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@Override
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protected void onPostExecute(String result) {
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TextView textView = (TextView) findViewById(R.id.text);
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textView.setText("Done");
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}
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};
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}

‎testing.android.vogella.com.asynctask/app/src/main/res/layout/activity_main.xml‎

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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:paddingBottom="@dimen/activity_vertical_margin"
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android:paddingLeft="@dimen/activity_horizontal_margin"
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android:paddingRight="@dimen/activity_horizontal_margin"
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android:paddingTop="@dimen/activity_vertical_margin"
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tools:context=".MainActivity">
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<TextView
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android:id="@+id/text"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="@string/hello_world" />
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<Button
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android:id="@+id/update"
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android:text="Click"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:onClick="onClick" />
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</LinearLayout>

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