Java – make Android applications that cannot be uninstalled / deleted

I want to make a secure app for Android phones. Basically, I don't want anyone to uninstall it without having to enter a specific password first

In addition, is there any way to prevent the application from stopping manually (such as closing through. Taskmanager)?

resolvent:

Anyway, this sounds more like malware behavior than regular Android Applications:

For a regular Android application, I think it's almost impossible to "fail to install" - if possible, try to think about what the Android application market will be like now!

On the other hand, if privileged control (root access) is available, this may be a possibility - for example, how wireless operators implement bundled software. However, as I mentioned, there is no conventional way to implement applications through publishing. The Android Market implements what you require, and you should know why