【問題處理】Application tried to present modally an active controller

標籤：presentedviewcontrol   nsinvalidargumentexc   tried to present   active controller   

問題：

Terminating app due to uncaught exception ‘NSInvalidArgumentException‘, reason: ‘Application tried to present modally an active controller <TabbarViewController: 0x1765dbe0>.‘

解決方案：

判斷controller是不是有presentedViewController，沒有的話才可以present

if ([UIApplication sharedApplication].delegate.window.rootViewController.presentedViewController == nil) {    [[UIApplication sharedApplication].delegate.window.rootViewController presentViewController:self.gesturePasswordController animated:YES completion:^{            }];}

【問題處理】Application tried to present modally an active controller