Start Settings->Apps->Running Activity on Android

Android default removed shortcut to Settings->Apps->Running. But you still launch it by class name.

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setComponent(new ComponentName("com.android.settings","com.android.settings.RunningServices"));
startActivity(intent);

In case some devices don’t support Running Apps, you can add a try catch to launch Settings->Apps instead.

try {
          //code above
} catch(Exception e)
{
         startActivity(new Intent( Settings.ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS));
}