键盘

在看asihttprequest代码时候，无意发现了关于键盘弹出时遮盖页面显示的解决方案，

解决方法如下：

在viewload方法里面注册监听键盘弹出和hide 

[[self view] setAutoresizingMask:UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];

然后在keyboardWillShow修改页面的大小- 键盘的高度

- (void)keyboardWillShow:(NSNotification *)notification

{

#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_3_2

NSValue *keyboardBoundsValue = [[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey];

#else

NSValue *keyboardBoundsValue = [[notification userInfo] objectForKey:UIKeyboardBoundsUserInfoKey];

#endif

CGRect keyboardBounds;

[keyboardBoundsValue getValue:&keyboardBounds];

UIEdgeInsets e = UIEdgeInsetsMake(0, 0, keyboardBounds.size.height-42, 0);

[[self tableView] setScrollIndicatorInsets:e];

[[self tableView] setContentInset:e];

}

恢复正常页面

- (void)keyboardWillHide:(NSNotification *)notification

{

UIEdgeInsets e = UIEdgeInsetsMake(0, 0, 0, 0);

[[self tableView] setScrollIndicatorInsets:e];

[[self tableView] setContentInset:e];

}