xcode 在 iPhone 应用程序的键盘上添加“完成”和“换行”按钮
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Add 'Done' and 'New line' buttons on keyboard in iPhone application
提问by Ajit
I have created a window based application with a UITabbarControlleras the RootViewController.
In one of the tabs, i have provided UITextFieldand UITextView.
I want to provide two buttons on the keyboard itself:
我创建了一个基于窗口的应用程序，UITabbarController其中RootViewController. 在其中一个选项卡中，我提供了UITextField和UITextView。我想在键盘上提供两个按钮：
- Done - which will hide the keyboard.
- Enter - for new line.
- 完成 - 这将隐藏键盘。
- 输入 - 换行。
Please post your answer if anybody has some idea how to do it.
如果有人知道如何去做，请发布您的答案。
回答by Brody Robertson
For the UITextField you can change the return key to a done key by setting the following:
对于 UITextField，您可以通过设置以下内容将返回键更改为完成键：
targetTextField.returnKeyType = UIReturnKeyDone;
However, you won't be able to have a Enter and Done key at the same time without custom addition of views to the keyboard.
但是，如果没有自定义添加到键盘的视图，您将无法同时使用 Enter 和 Done 键。
Also, to control the done behavior of the keyboard you have to implement a UITextFieldDelegate method:
此外，要控制键盘的完成行为，您必须实现 UITextFieldDelegate 方法：
targetTextField.delegate = self;
- (BOOL)textFieldShouldReturn:(UITextField *)textField{
return YES; //dismisses the keyboard
}
I know you can set the returnKeyType for a UITextView but I'm not sure if you can manipulate the return key behavior.
我知道您可以为 UITextView 设置 returnKeyType 但我不确定您是否可以操纵返回键行为。
回答by freezing_
For some reason return YES; didn't work on its own. that worked for me :
出于某种原因返回YES；没有单独工作。这对我有用：
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
if (textField.returnKeyType == UIReturnKeyNext) {
NSInteger nextTag = textField.tag + 1;
// Try to find next responder
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder) {
// Found next responder, so set it.
[nextResponder becomeFirstResponder];
}
}
if (textField.returnKeyType == UIReturnKeyDone) {
[textField resignFirstResponder];
}
return YES; //dismisses the keyboard
}
回答by vdaubry
You have a tutorial on how add subviews to the iPhone keyboard here :
你有一个关于如何向 iPhone 键盘添加子视图的教程：
http://www.iphonedevsdk.com/forum/iphone-sdk-tutorials/7350-adding-subviews-custimize-keyboard.html
http://www.iphonedevsdk.com/forum/iphone-sdk-tutorials/7350-adding-subviews-custimize-keyboard.html
Hope this helps, Vincent
希望这会有所帮助，文森特
