IOS学习之路二十二(UIAlertView获得文本框内容及添加北京图片)

来源:互联网 发布:古风额饰淘宝 编辑:程序博客网 时间:2024/04/28 00:37

今天写项目要用到警告框带输入框的,于是就自己做了个小demo.

效果图大体如下:



下面简单介绍一下UIAlertView

alertViewStyle属性有以下三种选项:

 UIAlertViewStylePlainTextInput添加一个普通输入框  UIAlertViewStyleSecureTextInput 密码输入框 UIAlertViewStyleLoginAndPasswordInput 普通输入框加密码输入框

 

下面分别来看看这三种属性的效果:

UIAlertViewStylePlainTextInput        UIAlertViewStyleSecureTextInput

UIAlertViewStylePlainTextInput)                                (UIAlertViewStyleSecureTextInput)

 

UIAlertViewStyleLoginAndPasswordInput

(UIAlertViewStyleLoginAndPasswordInput)

下面附上自己写的部分关键代码:

#pragma mark 弹出菜单- (IBAction)showMenu:(id)sender {        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"修改Webservice请求地址"                                                        message:@"请输入地址:(http://192.168.6.12)"                                                       delegate:self cancelButtonTitle:@"确定"                                              otherButtonTitles:@"取消", nil];    [alertView setAlertViewStyle:UIAlertViewStylePlainTextInput];        [alertView show];     //背景View    UIView *additonBackgroundView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, alertView.frame.size.width-30, alertView.frame.size.height-20)];    additonBackgroundView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"bag3.jpg"]]; //添加背景图片    [alertView insertSubview:additonBackgroundView atIndex:1];}#pragma mark   获得输入框里的值- (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    NSString *buttonTitle = [alertView buttonTitleAtIndex:buttonIndex];    if ([buttonTitle isEqualToString:@"确定"]){          UITextField *tf=[alertView textFieldAtIndex:0];//获得输入框        NSString * requestedURL=tf.text;//获得值    }}

转载请注明:

新浪微博:http://weibo.com/u/3202802157












原创粉丝点击