English 中文(简体)
B. 在使用ui器时面临麻烦
原标题:facing trouble while using uimenucontroller

在我看来,如果我想要复制/帕斯特/etc选项,那么我需要使用主力控制器。

这里使用的是:

{
UIMenuController *menuController = [UIMenuController sharedMenuController];

UIMenuItem *resetMenuItem = [[UIMenuItem alloc] initWithTitle:@"Paste" action:@selector(menuItemClicked:)];

[self becomeFirstResponder];

[menuController setMenuItems:[NSArray arrayWithObject:resetMenuItem]];
[menuController setTargetRect:imageView.frame inView:self.view];
[menuController setMenuVisible:YES animated:YES];
}

i 在主视控制器的推导下,主控器仅首先使用视力控制器时,便把这一功能引向根视控制器,推向主视控制器,而主控器则不显示已停止接触的菜单。 并且可以发现

 [self becomeFirstResponder];

谁能帮助我解决这一问题。

最佳回答

Your view or view controller needs to implement -(BOOL)canBecomeFirstResponder (returning YES)

问题回答

暂无回答




相关问题
How to change out-of-focus text selection color in Xcode?

Okay, I ll bite. I ve got really pleasant code/window colors set up in Xcode. Ordinarily, my selection color is very visible. When I am doing a project search and iterating through the results, ...

Iphone NSTimer Issue

Hi I am new to objective c. I am trying to make an app for iphone. I have a button on my view, and the click on which the function playSound is called. This is working properly. It does plays the ...

Include a .txt file in a .h in C++?

I have a number of places where I need to re-use some template code. Many classes need these items In a .h could I do something like: #include <xxx.txt> and place all of this code in the ....

Iterating over string/strlen with umlauted characters

This is a follow-up to my previous question . I succeeded in implementing the algorithm for checking umlauted characters. The next problem comes from iterating over all characters in a string. I do ...

Xcode open two editor windows with same file

Is it possible to open the same file in two separate windows in Xcode. I can open a file in one window and the same file in the main Xcode editor window, but I wanted two separate fulltime editor ...

Forcing code signing refresh in Xcode

In our environment, we share resources across multiple projects and platforms. When building for iPhone, only a subset of those resources are needed. Since that subset is still considerable, we have ...

热门标签