监听键盘事件

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监听键盘事件

2014年06月07日 ⁄ 综合 ⁄ 共 2419字 ⁄ 字号小中大 ⁄ 评论关闭

注册监听键盘事件的通知

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillShow:)
                                                 name:UIKeyboardWillShowNotification
                                               object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardShow:)
                                                 name:UIKeyboardDidShowNotification
                                               object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWillHide:)
                                                 name:UIKeyboardWillHideNotification
                                               object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardHide:)
                                                 name:UIKeyboardDidHideNotification
                                               object:nil];

在键盘将要出现和隐藏的回调中，加入动画。

- (void)keyboardWillShow:(NSNotification *)notif {
    if (self.hidden == YES) {
        return;
    }
    
    CGRect rect = [[notif.userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
    CGFloat y = rect.origin.y;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.25];
    NSArray *subviews = [self subviews];
    for (UIView *sub in subviews) {
        
        CGFloat maxY = CGRectGetMaxY(sub.frame);
        if (maxY > y - 2) {
            sub.center = CGPointMake(CGRectGetWidth(self.frame)/2.0, sub.center.y - maxY + y - 2);
        }
    }
    [UIView commitAnimations];
}

- (void)keyboardShow:(NSNotification *)notif {
    if (self.hidden == YES) {
        return;
    }
}

- (void)keyboardWillHide:(NSNotification *)notif {
    if (self.hidden == YES) {
        return;
    }
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.25];
    NSArray *subviews = [self subviews];
    for (UIView *sub in subviews) {
        if (sub.center.y < CGRectGetHeight(self.frame)/2.0) {
            sub.center = CGPointMake(CGRectGetWidth(self.frame)/2.0, CGRectGetHeight(self.frame)/2.0);
        }
    }
    [UIView commitAnimations];
}

- (void)keyboardHide:(NSNotification *)notif {
    if (self.hidden == YES) {
        return;
    }
}

监听键盘高度变化

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWasChange:) name:UIKeyboardDidChangeFrameNotification object:nil];


   
- (void)keyboardWasChange:(NSNotification *)aNotification {

    NSLog(@"Keyboard change");

    NSString *str=[[UITextInputMode currentInputMode] primaryLanguage];

    NSLog(@"shurufa--------------%@",str);

//    if ([str isEqualToString:@"zh-Hans"]) {

//        ReplayView.frame = CGRectMake(0, HEIGHT.height-216-125, 320, 45);

//    }else

//    {

//        ReplayView.frame = CGRectMake(0, HEIGHT.height-216-89, 320, 45);

//

//    

//    }

    

    NSDictionary *info = [aNotification userInfo];

    CGSize kbSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size;

   // CGRect frame = self.search.frame;

    if (kbSize.height == 216) {

        NSLog(@"english");

        ReplayView.frame = CGRectMake(0, HEIGHT.height-216-89, 320, 45);

    }

    else if(kbSize.height == 252){

        NSLog(@"中文");

        

        ReplayView.frame = CGRectMake(0, HEIGHT.height-216-125, 320, 45);

    }


}

【上篇】bool _WebTryThreadLock(bool), 0xf0d4e50:
【下篇】拼搏警句

作者: woshiqjl

该日志由 woshiqjl 于10年前发表在综合分类下，最后更新于 2014年06月07日.
转载请注明: 监听键盘事件 | 学步园 +复制链接

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监听键盘事件

作者: woshiqjl

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