UIAlertView 中的键盘关闭动画

Keyboard dismiss animation inside an UIAlertView

我的 iOS 申请有问题。事实上,我在里面植入了一个 UIAlertView 和一个 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 "Done" 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!

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];