键盘设置

• (void)viewDidLoad｛
  //监听通知中心
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
  //设置做边距
  self.inputView.leftView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 8, 0)];
  //一直显示
  self.inputView.leftViewMode = UITextFieldViewModeAlways;
  ｝
• (void)keyboardDidChangeFrame:(NSNotification *)noti{
  NSLog(@”——–%@”,noti.userInfo);
  //改变window的背景颜色
  self.view.window.backgroundColor = self.tableView.backgroundColor;
  // 键盘退出的frame
  CGRect frame = [noti.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
  //键盘实时y
  CGFloat keyY = frame.origin.y;
  //屏幕的高度
  CGFloat screenH = [[UIScreen mainScreen] bounds].size.height;
  //动画时间
  CGFloat keyDuration = [noti.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
  //执行动画
  [UIView animateWithDuration:keyDuration animations:^{
  self.view.transform = CGAffineTransformMakeTranslation(0, keyY - screenH);
  }];
  }
  //当tableview 滚动的时候 结束编辑事件 （退出键盘）
• (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
  [self.view endEditing:YES];
  }

// UIKeyboardAnimationCurveUserInfoKey = 7; 动画曲线动画
// UIKeyboardAnimationDurationUserInfoKey = “0.25”; 动画时间
// UIKeyboardBoundsUserInfoKey = “NSRect: {{0, 0}, {320, 216}}”; 键盘bounds
// UIKeyboardCenterBeginUserInfoKey = “NSPoint: {160, 588}”; 开始键盘的居中位置
// UIKeyboardCenterEndUserInfoKey = “NSPoint: {160, 372}”;结束键盘的居中位置
// UIKeyboardFrameBeginUserInfoKey = “NSRect: {{0, 480}, {320, 216}}”; 键盘开始弹出的frame
// UIKeyboardFrameChangedByUserInteraction = 0; 键盘改变frame
// UIKeyboardFrameEndUserInfoKey = “NSRect: {{0, 264}, {320, 216}}”; 退出键盘的frame