从MSMessagesAppViewController正确呈现UIAlertController

本文介绍了从MSMessagesAppViewController正确呈现UIAlertController的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试弄清楚如何在我的iMessage应用中显示 UIAlertController ，样式为 UIAlertControllerStyleActionSheet 扩展。

I'm trying to figure out how to display a UIAlertController with a style of UIAlertControllerStyleActionSheet within my iMessage app extension.

问题是，在调用时出现的操作表显示在本机iMessage文本字段下方：

The problem is, the action sheet appears below the native iMessage text field when presented when calling:

[self.view.window.rootViewController presentViewController：actionSheetController animated：YES completion：NULL];

我要解决这个问题吗？

代码：

UIAlertController *actionSheetController = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Clear", nil) message:nil preferredStyle:UIAlertControllerStyleActionSheet]; UIAlertAction *clear = [UIAlertAction actionWithTitle:NSLocalizedString(@"Clear", nil) style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) { [self clear]; }]; UIAlertAction *cancel = [UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", nil) style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {}]; [actionSheetController addAction:clear]; [actionSheetController addAction:cancel]; [self.view.window.rootViewController presentViewController:actionSheetController animated:YES completion:NULL];

推荐答案

另一种解决方法：

actionSheetController.view.transform = CGAffineTransform(translationX: 0, y: -40) [self.view.window.rootViewController presentViewController:actionSheetController animated:YES completion:NULL];