在textView中输入时避免键盘的遮挡

很多时候我们都在为键盘遮挡了原本就不大的屏幕时而烦恼，特别是当用户处于编辑状态时，键盘下面的内容就看不见了，用户只能处于盲打状态了。现在有一种简单的解决办法，基本思路就是，添加通知。一直监听键盘事件，在键盘遮挡时，将编辑器上移键盘的高度，键盘消失时，编辑区回复原来位置，ok，来两段代码吧

- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.    self.textView=[[UITextView alloc]initWithFrame:self.view.frame];    self.textView.text=@"请输入文字";    [self.view addSubview:self.textView];}- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}- (void)viewWillAppear:(BOOL)animated{    //注册通知,监听键盘出现    [[NSNotificationCenter defaultCenter]addObserver:self                                            selector:@selector(handleKeyboardDidShow:)                                                name:UIKeyboardDidShowNotification                                              object:nil];    //注册通知，监听键盘消失事件    [[NSNotificationCenter defaultCenter]addObserver:self                                            selector:@selector(handleKeyboardDidHidden)                                                name:UIKeyboardDidHideNotification                                              object:nil];    [super viewWillAppear:YES];}//监听事件- (void)handleKeyboardDidShow:(NSNotification*)paramNotification{    //获取键盘高度    NSValue *keyboardRectAsObject=[[paramNotification userInfo]objectForKey:UIKeyboardFrameEndUserInfoKey];        CGRect keyboardRect;    [keyboardRectAsObject getValue:&keyboardRect];        self.textView.contentInset=UIEdgeInsetsMake(0, 0,keyboardRect.size.height, 0);}- (void)handleKeyboardDidHidden{    self.textView.contentInset=UIEdgeInsetsZero;}- (void)viewDidDisappear:(BOOL)animated{    [[NSNotificationCenter defaultCenter] removeObserver:self];}

还有不清楚的，请看源码：点击打开链接