添加一个按钮来隐藏键盘

问题描述

在一个UITextView上隐藏键盘，有方法:

On a UITextView to hide the keyboard, there is the method:

...
    textfield.returnKeyType = UIReturnKeyDone;
    textfield.delegate = self;
....

-(BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return YES;

}

但是如果我想将完成"按钮留给返回"并添加一个隐藏键盘的按钮，我该怎么办?

but if I want to leave the button "done" to the "return" and add a button to hide the keyboard, how do I?

推荐答案

您可以分配一个带有按钮的工具栏，该按钮可作为文本字段的 inputAccessoryView 关闭键盘.一个简单的例子是，

You can assign a toolbar with a button that dismisses the keyboard as the text field's inputAccessoryView. A quick example would be,

UIBarButtonItem *barButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:textField action:@selector(resignFirstResponder)] autorelease];
UIToolbar *toolbar = [[[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)] autorelease];
toolbar.items = [NSArray arrayWithObject:barButton];

textField.inputAccessoryView = toolbar;