Android app implements feature notes as a system application

1. Disabling StatusBar related functions
Need to add permissions

<uses-permission android:name= "Android.permission.STATUS_BAR" ></uses-permission>

Enum Statusbarcmd {
    Disable_expand,
    Disable_none,
    Disable_recent,
    Disable_notification_icons
}

public static void Disablestatusbar (context context, statusbarcmd cmd) {
    try {
            Object service = Context.getsystemservice ("StatusBar");
            class<?> Statusbarmanager = Class.forName ("Android.app.StatusBarManager");
            Method disable = Statusbarmanager.getmethod ("Disable", Int.class);
            Disable.setaccessible (TRUE);
            Field Disable_expand = Statusbarmanager.getfield (Cmd.name ());
            Disable_expand.setaccessible (TRUE);
            int Disable_code  = Disable_expand.getint (Statusbarmanager);
            LOG.D ("YYY", "Disable code =" +disable_code);
            Disable.invoke (Service,disable_code);
    }catch (Exception ex) {
        Ex.printstacktrace ();
    }
}

2. Code Dynamic Switch Launcher

Require permissions

<uses-permission android:name= "Android.permission.FORCE_STOP_PACKAGES" ></uses-permission>

private void Switchlauncher (Context context,componentname activity) {
Packagemanager pm = Context.getpackagemanager ();
LOG.D ("YYY", "switch Launcher" +activity);
try {
class<?> Packagemanager = Class.forName ("Android.content.pm.PackageManager");
Method replacepreferedactivity = Packagemanager.getmethod ("replacepreferredactivity", Intentfilter.class,int.class , Componentname[].class,componentname.class);
Intentfilter homefilter = new Intentfilter (intent.action_main);
Homefilter.addcategory (Intent.category_home);
Homefilter.addcategory (Intent.category_default);

list<resolveinfo> Resolveinfos = new arraylist<resolveinfo> ();
ComponentName curlauncher = Listhomeactivitys (Context,resolveinfos);
if (Resolveinfos! = null && resolveinfos.size () > 0) {
componentname[] Componentnames = new componentname[resolveinfos.size ()];
for (int i =0; i<resolveinfos.size (); i++) {
Activityinfo Activityinfo = Resolveinfos.get (i). Activityinfo;
if (activityinfo! = null) {
ComponentName cn = New ComponentName (Activityinfo.packagename, activityinfo.name);
Componentnames[i] = cn;
LOG.D ("YYY", "Launcher:" +CN);
}
}
Replacepreferedactivity.setaccessible (TRUE);
Replacepreferedactivity.invoke (pm,homefilter,intentfilter.match_category_empty,componentnames,activity);
Killpackage (Context,curlauncher.getpackagename ());
}else {
LOG.E ("YYY", "Get home Resolve info empty");
}

} catch (Exception e) {
LOG.E ("YYY", "+e");
E.printstacktrace ();
}

}

Private ComponentName Listhomeactivitys (Context context,list<resolveinfo> outs) {
Packagemanager pm = Context.getpackagemanager ();
Object cn = NULL;
try {
class<?> Packagemanager = Class.forName ("Android.content.pm.PackageManager");
Method gethomeactivities = Packagemanager.getmethod ("Gethomeactivities", List.class);
Gethomeactivities.setaccessible (TRUE);
cn = Gethomeactivities.invoke (pm,outs);
}catch (Exception e) {
LOG.E ("YYY", "+e");
E.printstacktrace ();
}
Return (ComponentName) cn;
}

private void Killpackage (Context context,string pkg) {
Activitymanager am = (activitymanager) context.getsystemservice (Context.activity_service);
Am.killbackgroundprocesses (pkg);
}

Android app implements feature notes as a system application