UITextView关闭键盘

1.如果你程序是有导航条的，可以在导航条上面加多一个Done的按钮，用来退出键盘，当然要先实UITextViewDelegate。
Java代码收藏代码

- (void)textViewDidBeginEditing:(UITextView *)textView {    
   UIBarButtonItem *done =    [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(leaveEditMode)] autorelease];    
   self.navigationItem.rightBarButtonItem = done;        
}    
    
- (void)textViewDidEndEditing:(UITextView *)textView {    
    self.navigationItem.rightBarButtonItem = nil;    
}    
    
- (void)leaveEditMode {    
    [self.textView resignFirstResponder];    
}

2.如果你的textview里不用回车键，可以把回车键当做退出键盘的响应键。
代码如下：
Java代码收藏代码

#pragma mark - UITextView Delegate Methods     
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text    
{    
    if ([text isEqualToString:@"\n"]) {    
        [textView resignFirstResponder];    
        return NO;    
    }    
    return YES;    
}

这样无论你是使用电脑键盘上的回车键还是使用弹出键盘里的return键都可以达到退出键盘的效果。

3.第三种方法感觉效果比上面两种都好，就是在弹出的键盘上面加一个view来放置退出键盘的Done按钮。
Java代码收藏代码

- (void) initFeedText{  
    //初始化 UITextView  
    CGRect frame = CGRectMake(12, 0, 160, 88);  
    textFeed = [[UITextView alloc] initWithFrame:frame];  
    textFeed.delegate = self;  
    textFeed.font = [UIFont fontWithName:@"TrebuchetMS" size:16];  
    textFeed.backgroundColor = [UIColor clearColor];  
    textFeed.autocorrectionType = UITextAutocorrectionTypeYes;  
    textFeed.autocapitalizationType = UITextAutocapitalizationTypeNone;  
    textFeed.keyboardType = UIKeyboardTypeDefault;  
    textFeed.returnKeyType = UIReturnKeyDone;  
    textFeed.delegate = self;  
      
    //在弹出的键盘上面加一个view来放置退出键盘的Done按钮  
    UIToolbar * topView = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 30)];    
    [topView setBarStyle:UIBarStyleDefault];  
    UIBarButtonItem * btnSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];  
    UIBarButtonItem * doneButton = [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStyleDone target:self action:@selector(dismissKeyBoard)];      
    NSArray * buttonsArray = [NSArray arrayWithObjects:btnSpace, doneButton, nil];   
    [btnSpace release];  
    [doneButton release];  
    [topView setItems:buttonsArray];  
    [textFeed setInputAccessoryView:topView];  
    [topView release];  
}  
  
//关闭键盘  
-(void) dismissKeyBoard{  
    [textFeed resignFirstResponder];  
}

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