iOS-UIAlertController显示提示框代码汇总

1､UIAlertController显示普通的Alert，可以是注销功能等等，话不多说直接贴码

- (IBAction)showAlert:(UIButton *)sender {
   
 //过时的提示框，UIAlertView在IOS 8以上版本已经过时了，官方推荐我们使用UIAlertController代替UIAlertView、UIActionSheet
// UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title" message:@"message" delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:@"ok", nil];
//  [alert show];
 UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Title"message:@"This is an alert."  preferredStyle:UIAlertControllerStyleAlert]; 

 UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
                                            //响应事件
                                  NSLog(@"action = %@", action);
                             }];
 UIAlertAction* cancelAction = [UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
                                            //响应事件
                                  NSLog(@"action = %@", action);
                             }];
    [alert addAction:defaultAction];
    [alert addAction:cancelAction];
    [self presentViewController:alert animated:YES completion:nil];
}

2、UIAlertController显示ActionSheet

- (IBAction)showSheet:(UIButton *)sender {
  //显示弹出框列表选择
  UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"Title" message:@"This is an Sheet."preferredStyle:UIAlertControllerStyleActionSheet];
   
  UIAlertAction* cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * action) {
                                          //响应事件
                                   NSLog(@"action = %@", action);
                             }];
   UIAlertAction* deleteAction = [UIAlertAction actionWithTitle:@"删除" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * action) {
                                          //响应事件
                                   NSLog(@"action = %@", action);
                             }];
   UIAlertAction* saveAction = [UIAlertAction actionWithTitle:@"保存" style:UIAlertActionStyleDefault handler:^(UIAlertAction * action) {
                                         //响应事件
                                    NSLog(@"action = %@", action);
                             }];
    [alert addAction:saveAction];
    [alert addAction:cancelAction];
    [alert addAction:deleteAction];
    [self presentViewController:alert animated:YES completion:nil];
}