How to save stacktrace before application crash

I need to store and send crash log to server. I am able to save crash log in preference before it exists, but the problem is that it restarts the application and does not display the default crash message to user.

I want the crash flow for user to be normal.

public void registerCrash(){

    Thread.setDefaultUncaughtExceptionHandler (new Thread.UncaughtExceptionHandler()
    {
        @Override
        public void uncaughtException (Thread thread, Throwable e)
        {
            handleUncaughtException (thread, e);
        }
    });
}


public void handleUncaughtException (Thread thread, Throwable e)
{
    thread.getStackTrace();
    saveDataToFile(e.toString());
    System.exit(-1);
}

If i change the System.exits(0), it abruptly crashes, and does not save any log in file, and with System.exit(-1);, it restarts the application on crash.

Edit

saveDateToFile()

SharedPreferences sharedPreferences= context.getSharedPreferences(CRASH_LOG, Context.MODE_PRIVATE);
SharedPreferences.Editor prefsEditor = sharedPreferences.edit();
prefsEditor.putString(STACK_TRACE, data);
prefsEditor.apply();

Upvotes: 0