getRootWindows

(UIWindow *)getRootWindows {

NSArray *windows = [[UIApplication sharedApplication] windows];
for(UIWindow *window in [windows reverseObjectEnumerator]) {
if ([window isKindOfClass:[UIWindow class]] &&
window.windowLevel == UIWindowLevelNormal &&
CGRectEqualToRect(window.bounds, [UIScreen mainScreen].bounds))
return window;
}
return [UIApplication sharedApplication].keyWindow;
}