关于键盘遮住文本框的处理,以用户登录为例。有两种方法,第二种比较简单。
经实测发现,ipad mini和ipad air的宽高不一样,正好相反。mini宽度为1024,高度为768;air宽度为768,高度为1024。
所以在适配这两种设备时还需判断。

1 CGFloat deviceHeight = [UIScreen mainScreen].bounds.size.height;
2 CGFloat deviceWidth = [UIScreen mainScreen].bounds.size.width;
3 CGFloat backGroundViewW = 0;
4 //设备为mini
5 if (deviceWidth > deviceHeight) {
6     backGroundViewW = deviceWidth;
7 } else { //设备为air
8     backGroundViewW = deviceHeight;
9 }

下面是如何解决键盘遮住文本框的问题。

方法一:

 1 - (void)viewDidLoad{
 2     [super viewDidLoad];
 3     
 4     //添加登录界面
 5     [self setupLoginView];
 6     
 7     //监听文本框
 8     [self listenTextField];
 9     
10     //单击其它区域隐藏键盘
11     [self hideKeyBoardWithClickArea];
12 }
 1 //账号、密码输入框的监听
 2 -(void)listenTextField{
 3     [self.accountField addTarget:self action:@selector(textFieldBeginEdit:) forControlEvents:UIControlEventEditingDidBegin];
 4     [self.accountField addTarget:self action:@selector(textFieldEndEdit:) forControlEvents:UIControlEventEditingDidEnd];
 5     [self.passwordField addTarget:self action:@selector(textFieldBeginEdit:) forControlEvents:UIControlEventEditingDidBegin];
 6     [self.passwordField addTarget:self action:@selector(textFieldEndEdit:) forControlEvents:UIControlEventEditingDidEnd];
 7 }
 8 
 9 //开始编辑时,整体上移
10 -(void)textFieldBeginEdit:(UITextField *)textField{
11     [self moveView:-150];
12 }
13 
14 //结束编辑后,移回原来位置
15 -(void)textFieldEndEdit:(UITextField *)textField{    
16     [self moveView:150];
17 }
 1 //view移动的具体方法
 2 -(void) moveView:(float)move{
 3     NSTimeInterval animationDuration = 0.3f;
 4     CGRect frame = self.view.frame;
 5     CGFloat deviceHeight = [UIScreen mainScreen].bounds.size.height;
 6     CGFloat deviceWidth = [UIScreen mainScreen].bounds.size.width;
 7     //判断设备为ipad air,并且是否倒置
 8     if (deviceHeight > deviceWidth && self.interfaceOrientation==4) {
 9         //view的X轴上移,pad air
10         frame.origin.x += move;
11     } else if (deviceHeight > deviceWidth && self.interfaceOrientation==3){
12         frame.origin.x -= move;
13     } else { //为mini
14         frame.origin.y += move;
15     }
16     
17     self.view.frame = frame;
18     [UIView beginAnimations:@"2" context:nil];// 2是动画的标示,
19     [UIView setAnimationDuration:animationDuration];
20     self.view.frame = frame;
21     [UIView commitAnimations];
22 }
 1 //点击其它区域隐藏键盘
 2 -(void)hideKeyBoardWithClickArea{
 3     UITapGestureRecognizer *gesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(hideKeyBoard)];
 4     //确认是单击其他区域,而不是双击等其它操作
 5     gesture.numberOfTapsRequired = 1;
 6     [self.view addGestureRecognizer:gesture];
 7     
 8     //点击键盘右下角“隐藏键盘”那个按钮,关闭键盘并且恢复view的位置
 9     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(hideKeyBoard) name:UIKeyboardWillHideNotification object:nil];
10 }
11 
12 -(void)hideKeyBoard{
13     [self.accountField resignFirstResponder];
14     [self.passwordField resignFirstResponder];
15     [self resumeView];
16 }
17 
18 //恢复view的原来位置
19 -(void)resumeView{
20     NSTimeInterval animationDuration=0.5f;
21     [UIView beginAnimations:@"3" context:nil];
22     [UIView setAnimationDuration:animationDuration];
23     [UIView commitAnimations];
24 }

 方法二:

这种方法很简单,也很偷懒,一劳永逸。

就是从github上搜IQKeyboardManager,直接放进项目中即可!

 

 

 


***********************************************这是更正线***************************************************************


开篇说是ipad air和ipad mini的高宽不一样,实际上我忽略了各自的版本。mini的时8.1,air的是7.1。

所以高宽不一样应该是由于IOS版本不一致造成的,而不是真实设备差异!但上述代码还是可以用的。

以后得注意。:)

 

posted on 2015-01-06 16:18  lixin327  阅读(471)  评论(0编辑  收藏  举报