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//- (void)setTitle:(NSString *)title //{ // if (self.topViewController.navigationView) { // [self.navigationView setTitle:title]; // } //}
或将 ‘ self.topViewController.navigationView’ 的判断条件改为:self.topViewController.navigationController, 因为self.topViewController 拿回来的可能是 UINavigationController,且当 navigationController 为空时,获取navigationView时就会被NSAssert拦截,此判断根本无效:
if (!self.navigationController) { NSAssert(NO, @"attention: this controller's navigationcontroller is null: %@",self); }
The text was updated successfully, but these errors were encountered:
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//- (void)setTitle:(NSString *)title
//{
// if (self.topViewController.navigationView) {
// [self.navigationView setTitle:title];
// }
//}
或将 ‘ self.topViewController.navigationView’ 的判断条件改为:self.topViewController.navigationController, 因为self.topViewController 拿回来的可能是 UINavigationController,且当 navigationController 为空时,获取navigationView时就会被NSAssert拦截,此判断根本无效:
if (!self.navigationController) {
NSAssert(NO, @"attention: this controller's navigationcontroller is null: %@",self);
}
The text was updated successfully, but these errors were encountered: