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How to check current running applications in Android?
This example demonstrates about How to check current running applications in Android
Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.
Step 2 − Add the following code to res/layout/activity_main.xml.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context=".MainActivity"> <TextView android:id="@+id/textView" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" /> </LinearLayout>
Step 3 − Add the following code to src/MainActivity.java
package app.com.sample; import android.app.ActivityManager; import android.content.Context; import android.os.Bundle; import android.widget.TextView; import androidx.appcompat.app.AppCompatActivity; import java.util.List; import java.util.Objects; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView textView = findViewById(R.id.textView); ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.AppTask> tasks = Objects.requireNonNull(activityManager).getAppTasks(); for (ActivityManager.AppTask task : tasks) { String taskValue = "Application executed : " + task.getTaskInfo().baseActivity.toShortString() + "\tID: " + task.getTaskInfo().taskId + "\n"; textView.setText(taskValue); } } }
Step 4 − Add the following code to androidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="app.com.sample"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>
Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen −
Click here to download the project code.
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