第十三天 IOS UIAlertView

UIAlertview的使用：

首先就是拖动一个Button按钮然后就是生成一个单击的方法

这个方法是在方法的实现中写的后最名师.m的

- (IBAction)showAlertDialogClick:(id)sender {
//    NSLog(@"show Alert Dialog");
    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"Title" message:@"message" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];
    [alert show ];
}

然后再后最名.h的方法里继承一个代理

@interface ViewController : UIViewController<UIActionSheetDelegate>

然后在.m 里面写

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:
            NSLog(@"Cancel");
            break;
        case 1:
        {
            UITextField *filed;
            filed=[alertView textFieldAtIndex:0];
            NSString *userName=filed.text;
            filed=[alertView textFieldAtIndex:1];
            NSString *password=filed.text;
            NSLog(@"%@,%@",userName,password);
        }
            break;
        default:
            break;
    }
   
}

这样就可以实现弹出对话框

2、showDialogAlertLoginStyle

- (IBAction)showAlertDialogStyleClick:(id)sender {
    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"Lgion" message:nil delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:@"Lgion", nil];
    alert.alertViewStyle=UIAlertViewStyleLoginAndPasswordInput;
    [alert show];
   
}

然后再后最名.h的方法里继承一个代理

@interface ViewController : UIViewController<UIActionSheetDelegate>

然后在.m 里面写

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    switch (buttonIndex) {
        case 0:
            NSLog(@"Cancel");
            break;
        case 1:
        {
            UITextField *filed;
            filed=[alertView textFieldAtIndex:0];
            NSString *userName=filed.text;
            filed=[alertView textFieldAtIndex:1];
            NSString *password=filed.text;
            NSLog(@"%@,%@",userName,password);
        }
            break;
        default:
            break;
    }
   
}

如图：