IOS gets the currently displayed page

2. -(Uiviewcontroller *) GETCURRENTVC
4. {
6. Uiviewcontroller *result = nil;
10. UIWindow * window = [[uiapplication sharedapplication] Keywindow];
12. if (Window. windowlevel! = uiwindowlevelnormal)
14. {
16. Nsarray *windows = [[uiapplication sharedapplication] windows];
18. For (UIWindow * tmpwin in Windows)
20. {
22. if (Tmpwin. Windowlevel = = uiwindowlevelnormal)
24. {
26. window = Tmpwin;
28. Break ;
30. }
32. }
34. }
38. UIView *frontview = [[Window subviews] Objectatindex:0];
40. id nextresponder = [frontview nextresponder];
44. if ([Nextresponder Iskindofclass:[uiviewcontroller class]])
46. result = Nextresponder;
48. Else
50. result = Window. Rootviewcontroller;
54. return result;
56. }

2. -(Uiviewcontroller *) Getpresentedviewcontroller
4. {
6. Uiviewcontroller *APPROOTVC = [uiapplication sharedapplication]. Keywindow. Rootviewcontroller;
8. Uiviewcontroller *TOPVC = APPROOTVC;
10. if (TOPVC. Presentedviewcontroller) {
12. TOPVC = Topvc. Presentedviewcontroller;
14. }
18. return TOPVC;
20. }

IOS gets the currently displayed page