我将所有内容从AlertView改成了AlertController,但是我在网上找不到objective c的任何东西来检索用户在AlertController的文本字段中输入的内容。这就是我所拥有的:
if ([UIAlertController class]) {
UIAlertController *alertControllerK2 = [UIAlertController
alertControllerWithTitle:@"\u00A0"
message:@"Please enter the first number."
preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *K2okAction = [UIAlertAction
actionWithTitle:@"OK"
style:UIAlertActionStyleDefault
handler:nil];
[alertControllerK2 addTextFieldWithConfigurationHandler:^(UITextField *K2TextField)
{
K2TextField.placeholder = NSLocalizedString(@"Please enter the first number.", @"Please enter the first number.");
}];
[alertControllerK2 addAction:K2okAction];
[self presentViewController:alertControllerK2 animated:YES completion:nil];
} else {
UIAlertView *alertK2;
alertK2 = [[UIAlertView alloc]
initWithTitle:@"\u00A0"
message:@"Please enter the first number."
delegate: self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
alertK2.alertViewStyle=UIAlertViewStylePlainTextInput;
[alertK2 show];
}
问题是K2TextField是在UIAlertController内部定义的,所以我不能在该代码之外访问它。但是如果我尝试预定义它,我会得到一条错误消息。任何帮助都将不胜感激!
https://stackoverflow.com/questions/26768237
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