How to `getTopActivity` name or get currently running application package name in lollipop?

Question

I am creating a app lock application. How to get current running task in lollipop? getRunningTaskinfo method is deprecated in lollipop API, then how to overcome this problem?

Answer 1

try this:

ActivityManager mActivityManager =(ActivityManager)this.getSystemService(Context.ACTIVITY_SERVICE);  if(Build.VERSION.SDK_INT > 20){ String mPackageName = mActivityManager.getRunningAppProcesses().get(0).processName; } else{   String mpackageName = mActivityManager.getRunningTasks(1).get(0).topActivity.getPackageName(); } 

we can get using UsageStats:

public static String getTopAppName(Context context) {     ActivityManager mActivityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);     String strName = "";     try {         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {             strName = getLollipopFGAppPackageName(context);         } else {             strName = mActivityManager.getRunningTasks(1).get(0).topActivity.getClassName();         }     } catch (Exception e) {         e.printStackTrace();     }     return strName; }   private static String getLollipopFGAppPackageName(Context ctx) {      try {         UsageStatsManager usageStatsManager = (UsageStatsManager) ctx.getSystemService("usagestats");         long milliSecs = 60 * 1000;         Date date = new Date();         List<UsageStats> queryUsageStats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, date.getTime() - milliSecs, date.getTime());         if (queryUsageStats.size() > 0) {             Log.i("LPU", "queryUsageStats size: " + queryUsageStats.size());         }         long recentTime = 0;         String recentPkg = "";         for (int i = 0; i < queryUsageStats.size(); i++) {             UsageStats stats = queryUsageStats.get(i);             if (i == 0 && !"org.pervacio.pvadiag".equals(stats.getPackageName())) {                 Log.i("LPU", "PackageName: " + stats.getPackageName() + " " + stats.getLastTimeStamp());             }             if (stats.getLastTimeStamp() > recentTime) {                 recentTime = stats.getLastTimeStamp();                 recentPkg = stats.getPackageName();             }         }         return recentPkg;     } catch (Exception e) {         e.printStackTrace();     }     return ""; } 

// TO ENABLE USAGE_STATS

    // Declare USAGE_STATS permisssion in manifest      <uses-permission     android:name="android.permission.PACKAGE_USAGE_STATS"     tools:ignore="ProtectedPermissions" />       Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);     startActivity(intent);