Check Android Application Is in Foreground or Not

check android application is in foreground or not?

I don't understand what you want, but You can detect currently foreground/background application with ActivityManager.getRunningAppProcesses() call.

Something like,

class ForegroundCheckTask extends AsyncTask<Context, Void, Boolean> {

  @Override
  protected Boolean doInBackground(Context... params) {
    final Context context = params[0].getApplicationContext();
    return isAppOnForeground(context);
  }

  private boolean isAppOnForeground(Context context) {
    ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
    if (appProcesses == null) {
      return false;
    }
    final String packageName = context.getPackageName();
    for (RunningAppProcessInfo appProcess : appProcesses) {
      if (appProcess.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND && appProcess.processName.equals(packageName)) {
        return true;
      }
    }
    return false;
  }
}

// Use like this:
boolean foregroud = new ForegroundCheckTask().execute(context).get();

Also let me know if I misunderstand..

UPDATE: Look at this SO question Determining the current foreground application from a background task or service fore more information..

Thanks..

How to know if my application is in foreground or background, android?

Original Answer : https://stackoverflow.com/a/60212452/10004454
The recommended way to do it in accordance with Android documentation is

class MyApplication : Application(), LifecycleObserver {

override fun onCreate() {
    super.onCreate()
    ProcessLifecycleOwner.get().lifecycle.addObserver(this);
}

fun isActivityVisible(): String {
    return ProcessLifecycleOwner.get().lifecycle.currentState.name
}

@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
fun onAppBackgrounded() {
    //App in background

    Log.e(TAG, "************* backgrounded")
    Log.e(TAG, "************* ${isActivityVisible()}")
}

@OnLifecycleEvent(Lifecycle.Event.ON_START)
fun onAppForegrounded() {

    Log.e(TAG, "************* foregrounded")
    Log.e(TAG, "************* ${isActivityVisible()}")
    // App in foreground
}}

In your gradle (app) add : implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"

Then to check the state at runtime call MyApplication().isActivityVisible()

How can I tell if Android app is running in the foreground?

Make a global variable like private boolean mIsInForegroundMode; and assign a false value in onPause() and a true value in onResume().

Sample code:

private boolean mIsInForegroundMode;

@Override
protected void onPause() {
    super.onPause();
    mIsInForegroundMode = false;
}

@Override
protected void onResume() {
    super.onResume();
    mIsInForegroundMode = true;
}

// Some function.
public boolean isInForeground() {
    return mIsInForegroundMode;
}

How to check is app in foreground from service?

You can control running app processes from android system service. Try this:

private boolean applicationInForeground() {
    ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningAppProcessInfo> services = activityManager.getRunningAppProcesses();
    boolean isActivityFound = false;

    if (services.get(0).processName
            .equalsIgnoreCase(getPackageName()) && services.get(0).importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
        isActivityFound = true;
    }

    return isActivityFound;
}

Good luck.

Check if app is running in foreground or background (with sync adapter)

Original Answer : https://stackoverflow.com/a/48767617/10004454
The recommended way to do it in accordance with Android documentation is

class MyApplication : Application(), LifecycleObserver {

override fun onCreate() {
    super.onCreate()
    ProcessLifecycleOwner.get().lifecycle.addObserver(this)
}

fun isInForeground(): Boolean {
    return ProcessLifecycleOwner.get().lifecycle.currentState.isAtLeast(Lifecycle.State.STARTED)
}

@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
fun onAppBackgrounded() {
    //App in background

    Log.e(TAG, "************* backgrounded")
    Log.e(TAG, "************* ${isInForeground()}")
}

@OnLifecycleEvent(Lifecycle.Event.ON_START)
fun onAppForegrounded() {

    Log.e(TAG, "************* foregrounded")
    Log.e(TAG, "************* ${isInForeground()}")
    // App in foreground
}}

In your gradle (app) add : implementation "androidx.lifecycle:lifecycle-extensions:2.2.0"

Then to check the state at runtime call (applicationContext as MyApplication).isActivityVisible()

What the best way to check if an Android application is in foreground?

private boolean isAppForground() {

        ActivityManager mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        List<RunningAppProcessInfo> l = mActivityManager
                .getRunningAppProcesses();
        Iterator<RunningAppProcessInfo> i = l.iterator();
        while (i.hasNext()) {
            RunningAppProcessInfo info = i.next();

            if (info.uid == getApplicationInfo().uid && info.importance == RunningAppProcessInfo.IMPORTANCE_FOREGROUND) 
                {
                    return true;
               }
           }
        return false;
    }

How to detect when an Android app goes to the background and come back to the foreground

The onPause() and onResume() methods are called when the application is brought to the background and into the foreground again. However, they are also called when the application is started for the first time and before it is killed. You can read more in Activity.

There isn't any direct approach to get the application status while in the background or foreground, but even I have faced this issue and found the solution with onWindowFocusChanged and onStop.

For more details check here Android: Solution to detect when an Android app goes to the background and come back to the foreground without getRunningTasks or getRunningAppProcesses.

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