键盘事件

[[NSNotificationCenter defaultCenter] addObserver:self

selector:@selector(actionKeyboardShow:)

name:UIKeyboardDidShowNotification

object:nil];

[[NSNotificationCenter defaultCenter] addObserver:self

selector:@selector(actionKeyboardHide:)

name:UIKeyboardWillHideNotification

object:nil];

- (void)actionKeyboardShow:(NSNotification*)notification

{

CGSizekeyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size

self.tableView.frame=CGRectMake(0,0,320,self.view.h-keyboardSize.height);

if( v )

{

         while( ![v isKindOfClass:[UITableViewCell  class]]) {

         v = v.superview;

}

UITableViewCell*cell = (UITableViewCell*)v;

[self.tableView scrollToRowAtIndexPath:[self.tableView indexPathForRowAtPoint:cell.center] atScrollPosition:UITableViewScrollPositionBottom animated:YES];

}

}

获取当前正在输入的控件

static __weak id currentFirstResponder;

+(id)currentFirstResponder {

currentFirstResponder =nil;

[[UIApplication sharedApplication] sendAction:@selector(findFirstResponder:) to:nil from:nil forEvent:nil];

returncurrentFirstResponder;

}

-(void)findFirstResponder:(id)sender {

currentFirstResponder =self;

}

键盘消失三种做法

[someView resignFirstResponder];

[self.view endEditing:YES];

[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];