How to completely force the killing of background unrelated processes?

        In some low-end models or small memory ROM in , Memory shortage often occurs , In addition to optimizing their own programs , It is often necessary to save memory by killing and emptying some irrelevant background processes . But now many programs have made strong daemons or joined the platform white list , Conventional methods cannot completely kill .

        such as am.forceStopPackage(), perhaps "adb shell killall -9 com.xxx.xxx". After killing, it will start again . So in this case , How to completely kill these annoying guys .

        Here is an unconventional method , By disabling the package name , But here's the thing , After disabling the package name , The corresponding program process will be emptied , And it cannot be started again , The app list can't find it , This requires restoring the availability of the package name , At this time, it will not start itself . It can be done by adb Command test ：

Disable program ：adb shell pm disable com.xxx.xxx

Recovery procedure ：adb shell pm enable com.xxx.xxx

As for the code implementation , It is through java send out shell Instructions , Refer to the following ：

 public static boolean RootCommand(String command)
    {
        Process process = null;
        DataOutputStream os = null;
        try {
            process = Runtime.getRuntime().exec("sh");
            os = new DataOutputStream(process.getOutputStream());
            os.writeBytes(command + "\n");
            os.writeBytes("exit\n");
            os.flush();
            process.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        } finally {
            try {
                if (os != null) {
                    os.close();
                }
                process.destroy();
            } catch (Exception e) {
            }
        }
        return true;
    }


// call 
RootCommand("pm disable com.xxx.xxx");

  In this way, we can completely kill the stubborn process in the background , However, remember to restore the availability of the package name in time after disabling .