How to make status-bar untouchable in android? -

i trying make lock screen android, versions greater honeycomb. have been searching working solution since month haven't been successful. i'll specific situation.

• in specific activity want status bar visible untouchable @ all. in other words user should not able pull down.
• i don't want solution collapse status bar when activity loses focus. doesn't work! still able pull down status bar after 1 or 2 tries on galaxy note-2.
• i don't want put activity in fullscreen mode. hide status bar want visible.
• i know possible. there threads saying it's impossible so. know it's possible because there other custom lock screens implement same. (eg. dodol locker, locker+, etc.)

i appreciate working code.

thanks in advance.

lets give try not make status bar untouchable stop getting dragged,first give permissions in mainfest file expand_status_bar

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

declare these variables in activity :

// keep track of activity's window focus boolean currentfocus;  // keep track of activity's foreground/background status boolean ispaused;  handler collapsenotificationhandler; 

it ask override following method,override it

@override public void onwindowfocuschanged(boolean hasfocus) {      currentfocus = hasfocus;      if (!hasfocus) {          // method handles loss of window focus         collapse_now();     } } 

define collapse_now method

public void collapse_now() {      // initialization 'collapsenotificationhandler'     if (collapsenotificationhandler == null) {         collapsenotificationhandler = new handler();     }      // if window focus has been lost && activity not in paused state     // valid check because showing of notification panel     // steals focus current activity's window, not      // 'pause' activity     if (!currentfocus && !ispaused) {          // post runnable delay - set 300 ms         collapsenotificationhandler.postdelayed(new runnable() {              @override             public void run() {                  // use reflection trigger method 'statusbarmanager'                                  object statusbarservice = getsystemservice("statusbar");                 class<?> statusbarmanager = null;                  try {                     statusbarmanager = class.forname("android.app.statusbarmanager");                 } catch (classnotfoundexception e) {                     e.printstacktrace();                 }                  method collapsestatusbar = null;                  try {                      // prior api 17, method call 'collapse()'                     // api 17 onwards, method call `collapsepanels()`                      if (build.version.sdk_int > 16) {                         collapsestatusbar = statusbarmanager.getmethod("collapsepanels");                     } else {                         collapsestatusbar = statusbarmanager.getmethod("collapse");                     }                 } catch (nosuchmethodexception e) {                     e.printstacktrace();                 }                  collapsestatusbar.setaccessible(true);                  try {                     collapsestatusbar.invoke(statusbarservice);                 } catch (illegalargumentexception e) {                     e.printstacktrace();                 } catch (illegalaccessexception e) {                     e.printstacktrace();                 } catch (invocationtargetexception e) {                     e.printstacktrace();                 }                  // check if window focus has been returned                 // if hasn't been returned, post runnable again                 // currently, delay 100 ms. can change                 // value suit needs.                 if (!currentfocus && !ispaused) {                     collapsenotificationhandler.postdelayed(this, 100l);                 }              }         }, 300l);     }    } 

handle activity's pause state

@override protected void onpause() {     super.onpause();      // activity's been paused           ispaused = true; }  @override protected void onresume() {     super.onresume();      // activity's been resumed     ispaused = false; }