I want to prevent launching of task manager and Settings applications in my application. For this, I tried to obtain currently running application and checked whether their package name is allowed or not .If it is not allowed then show a new activity.
When work out it is show that the package name of default android Settings application is com.android.settings. Now I have some doubts
Is the Settings application has package name com.android.settings in all android versions? If not, which are they?
How to find package name of Task Manager?
For this,I tried to obtain currently running application and checked whether their package name is allowed or not .If it is not allowed then show a new activity.
Fortunately, for the users affected by your app, this will be unreliable.
Is the Settings application has package name com.android.settings in all android versions?
Not necessarily. More importantly, any given firmware can have any number of applications that modify settings, supplied by the firmware author. Some settings can be modified even without being part of the firmware, particularly on rooted devices.
If not,which are they?
You are welcome to make a list of all device manufacturers and ROM mod authors and ask them that question.
How to find package name of Task Manager?
There are any number of "task manager" apps included in devices, ROM mods, and available on the Play Store and other distribution points. You are welcome to make a list of all of them and ask their authors that question.