顯示帶有文本字段輸入的提示

Question

如何在提示中顯示文本輸入字段以從用戶獲取輸入並在應用程序中使用該輸入（將輸入顯示在標籤上）？

如示出

低於謝謝您的時間。

Answer 1

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Enter Text" 
                   message:@"Enter some text below" 
                 preferredStyle:UIAlertControllerStyleAlert]; 

UIAlertAction *submit = [UIAlertAction actionWithTitle:@"Submit" style:UIAlertActionStyleDefault 
               handler:^(UIAlertAction * action) { 

                if (alert.textFields.count > 0) { 

                 UITextField *textField = [alert.textFields firstObject]; 

                 textField.text // your text 
                } 

               }]; 

[alert addAction:submit]; 

[alert addTextFieldWithConfigurationHandler:^(UITextField *textField) { 
    textField.placeholder = @"something"; // if needs 
}]; 

[self presentViewController:alert animated:YES completion:nil]; 

Answer 2

要添加TextField對UIAlertView設置alertViewStyle屬性與UIAlertViewStylePlainTextInput

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title" 
               message:@"Message" 
               delegate:self 
             cancelButtonTitle:@"Done" 
             otherButtonTitles:nil]; 
alert.alertViewStyle = UIAlertViewStylePlainTextInput; 
[alert show]; 

在h文件添加UIAlertViewDelegate作爲協議和實現在.m文件委託方法alertView:clickedButtonAtIndex。

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
    NSLog(@"%@", [alertView textFieldAtIndex:0].text); 
}