textfield 嵌套着 UIAlertViewStylePlainTextInput 运用不行，

-(void)textFieldDidBeginEditing:(UITextField *)textField

{

//    UIAlertView *prompt = [[UIAlertView alloc] initWithTitle:@"请输入起点:"

//                                                     message:@" "

//                                                    delegate:nil

//                                           cancelButtonTitle:@"取消"

//                                           otherButtonTitles:@"确定", nil];

//    

//    

//    UITextField *textField1 = [[UITextField alloc] initWithFrame:CGRectMake(27.0, 60.0, 230.0, 25.0)];

//    [textField1 setBackgroundColor:[UIColor whiteColor]];

//    [prompt setTransform:CGAffineTransformMakeTranslation(0.0, -100.0)];  //可以调整弹出框在屏幕上的位置

//    [textField1 setPlaceholder:@"起点"];

//    [prompt addSubview:textField1];

//    [prompt show];

  

    UIAlertView *alert = [[UIAlertViewalloc]initWithTitle:@"设置备注" message:nildelegate:selfcancelButtonTitle:@"取消"otherButtonTitles:@"确定", nil];

    alert.alertViewStyle = UIAlertViewStylePlainTextInput;

    UITextField *markField = [alert textFieldAtIndex:0];

    markField.keyboardType = UIKeyboardTypeNumberPad;

    [alert show];

 

    

    

}

 

-(IBAction)pressed:(id)sender

{

    UIAlertView *alert = [[UIAlertViewalloc]initWithTitle:@"设置备注" message:nildelegate:selfcancelButtonTitle:@"取消"otherButtonTitles:@"确定", nil];

    alert.alertViewStyle = UIAlertViewStylePlainTextInput;

    UITextField *markField = [alert textFieldAtIndex:0];

    markField.keyboardType = UIKeyboardTypeNumberPad;

    [alert show];

}

 

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

    UITextField *tf=[alertView textFieldAtIndex:0];

    NSString *remarkString = tf.text;

    TTLog(@"%@",remarkString);

 

}