获取当前显示的ViewController
//获取当前屏幕显示的viewcontroller
- (
UIViewController
*)getCurrentVC
{
UIViewController
*result =
nil
;
UIWindow
* window = [[
UIApplication
sharedApplication
]
keyWindow
];
if
(window
.windowLevel
!= UIWindowLevelNormal)
{
NSArray
*windows = [[
UIApplication
sharedApplication
]
windows
];
for
(
UIWindow
* tmpWin
in
windows)
{
if
(tmpWin
.windowLevel
== UIWindowLevelNormal)
{
window = tmpWin;
break;
}
}
}
UIView
*frontView = [[window
subviews
]
objectAtIndex
:
0
];
id
nextResponder = [frontView
nextResponder
];
if
([nextResponder
isKindOfClass
:[
UIViewController
class
]])
result = nextResponder;
else
result = window
.rootViewController
;
return
result;
}