ios - UIAlertView 中的键盘关闭动画

Question

我的 iOS 应用程序有问题。事实上，我已经在 UIAlertView 中植入了一个 UITextField :

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Message"
                                                            message:@"message"
                                                           delegate:self
                                                  cancelButtonTitle:@"Done"
                                                  otherButtonTitles:nil];
            alert.alertViewStyle = UIAlertViewStylePlainTextInput;
            UITextField *textField = [alert textFieldAtIndex:0];
            assert(textField);
            textField.keyboardType = UIKeyboardTypeDecimalPad;
            [alert show];

当我触摸“完成”按钮时，键盘没有关闭动画，它不流畅...所以我想在用户触摸完成按钮时添加一个动画:)

提前致谢!

Answer 1

如果您的部署目标是 iOS 8，您可以使用 UIAlertController 解决此问题:

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Title"
                                                               message:@"Message"
                                                        preferredStyle:UIAlertControllerStyleAlert];
[alert addTextFieldWithConfigurationHandler:^(UITextField *textField) {
    textField.keyboardType = UIKeyboardTypeDecimalPad;
}];
[alert addAction:[UIAlertAction actionWithTitle:@"Done" style:UIAlertActionStyleDefault handler:nil]];
[self presentViewController:alert animated:YES completion:nil];