I'm trying to open lock activity while opening another installed app. Its working fine. Lock activity does open, but it opens after another application launches. So how to open lock activity before another application launches? If anyone have solution then help me.Through searching i search code that get foreground task in android 5.0 +
public void onReceive(Context context, Intent intent) {
DatabaseHelper databaseHelper = new DatabaseHelper(context.getApplicationContext());
try {
arrayList.clear();
Cursor cursor = databaseHelper.getAll();
if (cursor != null) {
if (cursor.moveToFirst()) {
arrayList.add(cursor.getString(2));
}
while (cursor.moveToNext()) ;
}
if (arrayList.size() == 0) {
activity = this.context.getPackageName().toString();
} else {
activity = arrayList.get(0).toString();
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) { //For versions less than lollipop
ActivityManager am = ((ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE));
List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(5);
top = taskInfo.get(0).topActivity.getPackageName();
Log.v(TAG, "top from Receiver app = " + top);
for (ActivityManager.RunningTaskInfo info : taskInfo) {
if (info.topActivity.getPackageName().equalsIgnoreCase(activity)) {
intent = new Intent(context.getApplicationContext(), Lock_Screen.class);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}
} else { //For versions Lollipop and above
List<AndroidAppProcess> processes = ProcessManager.getRunningForegroundApps(context.getApplicationContext());
Collections.sort(processes, new ProcessManager.ProcessComparator());
for (int i = 0; i <= processes.size() - 1; i++) {
if (!processes.get(i).name.isEmpty()) {
top = processes.get(i).name;
Log.e(TAG, "top from Receiver app=" + top);
if (processes.get(i).name.equalsIgnoreCase(activity)) {
intent = new Intent(context.getApplicationContext(), Lock_Screen.class);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
}
}
if (processes.get(i).name.equalsIgnoreCase("com.google.android.youtube")) { //always the package name above/below this package is the top app
if ((i + 1) <= processes.size() - 1) { //If processes.get(i+1) available, then that app is the top app
top = processes.get(i + 1).name;
} else if (i != 0) { //If the last package name is "com.google.android.gms" then the package name above this is the top app
top = processes.get(i - 1).name;
} else {
if (i == processes.size() - 1) { //If only one package name available
top = processes.get(i).name;
}
}
Log.v(TAG, "top app from Receiver = " + top);
}
}
}
// context.startService(new Intent(context.getApplicationContext(), Service_1.class));
databaseHelper.close();
}catch (Exception e){
e.getMessage();
e.getLocalizedMessage();
}
}
