1 if (SYSTEM_VERSION >= 8.0) {
2 UIAlertController *alertCtrl = [UIAlertController alertControllerWithTitle:@"赎回成功" message:nil preferredStyle:UIAlertControllerStyleAlert];
3 UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
4 [self.navigationController popViewControllerAnimated:YES];
5 }];
6 [alertCtrl addAction:okAction];
7 [self presentViewController:alertCtrl animated:YES completion:nil];
8
9 }else{
10 //这个else一定要写，否则会导致在ios8一下的真机crash
11 UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"赎回成功" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定", nil];
12 alert.tag = 998;
13 [alert show];
14 }
15
16 #pragma mark-UIAlertViewDelegate
17 -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
18 {
19 if (alertView.tag == 998) {
20 [self.navigationController popViewControllerAnimated:YES];
21 }
22 }
iOS 8 以后不用alertView了。使用UIAlertController代替。使用方法相同。