私人通讯录中遇到的注意点

来源：互联网发布：指南数据库编辑：程序博客网时间：2024/06/02 09:08

1. 选择性的跳转由当前控制器执行如下语句:

[selfperformSegueWithIdentifier:@"login2contact"sender:nil];

2.用户名密码错误的时候,弹出提醒 1S后自动消失通过下面代码实现:

- (IBAction)loginBtnClick {

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

if ([self.loginText.text isEqualToString:@"LW123"] && [self.passwordText.textisEqualToString:@"123456"]) {

[selfperformSegueWithIdentifier:@"login2contact"sender:nil];

}else{

UIAlertController *controller = [UIAlertControlleralertControllerWithTitle:@"登录错误"message:@"用户名或者密码错误"preferredStyle:UIAlertControllerStyleActionSheet];

UIAlertAction *okAction = [UIAlertActionactionWithTitle:@"确认"style:UIAlertActionStyleDestructivehandler:nil];

UIAlertAction *cancleAction = [UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleCancelhandler:nil];

[controller addAction:okAction];

[controller addAction:cancleAction];

[selfpresentViewController:controller animated:YEScompletion:nil];

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

[controller dismissViewControllerAnimated:YEScompletion:nil];

});

}

});

}

如果我们采用第三方框架MBProgressHUD 只需要简单的一两行代码就能实现代码如下:

- (IBAction)loginBtnClick {

[MBProgressHUDshowMessage:@"通讯管家正在拼命加载中..."];

dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)),dispatch_get_main_queue(), ^{

if ([self.loginText.text isEqualToString:@"LW123"] && [self.passwordText.textisEqualToString:@"123456"]) {

[MBProgressHUD hideHUD];

[MBProgressHUD showSuccess:@"登录成功!欢迎回来"];

[selfperformSegueWithIdentifier:@"login2contact"sender:nil];

}else{

[MBProgressHUD hideHUD];

[MBProgressHUD showError:@"用户名或者密码错误"];

}

});

}

这样子是不是很方便了呢

0 0