?標(biāo)題欄消失動(dòng)畫(huà)（navigation）
self.mainNavigationController setNavigationBarHidden:<#(BOOL)#> animated:<#(BOOL)#>
更改標(biāo)題欄顏色
self.navigationController.navigationBar.tintColor = [UIColor whiteColor];
更改電池顏色 ?（vc）
-(UIStatusBarStyle)preferredStatusBarStyle
{
return UIStatusBarStyleLightContent;
}
//
只需要一個(gè)靜態(tài)變量就可以了
static BOOL first = YES;
if (first) {
//加載
first = NO;
}
找下層vc
id object = [self nextResponder];
while (![object isKindOfClass:[HomeViewController class]] &&
object != nil) {
object = [object nextResponder];
}
HomeViewController *homeVC = (HomeViewController *)object;
