@property (nonatomic,assign)float currentf_heihgt; //当前tf的高度
@property (nonatomic,assign)float currentf_y; //当前tf的y值，方便获得keyborard移动
#define FUll_VIEW_WIDTH ([[UIScreen mainScreen] bounds].size.width)
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
UIWindow * window=[[[UIApplication sharedApplication] delegate] window];
CGRect rect=[textField convertRect: textField.bounds toView:window];
_currentf_y = rect.origin.y;
_currentf_heihgt = textField.frame.size.height;
return YES;
}
-(void)keyboardWillShow:(NSNotification*)aNotification {
//获取键盘的高度
NSDictionary *userInfo = [aNotification userInfo];
NSValue *aValue = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyboardRect = [aValue CGRectValue];
CGFloat keyboardheight = keyboardRect.size.height;
//计算出键盘顶端到inputTextView panel底端的距离(加上自定义的缓冲距离INTERVAL_KEYBOARD)
//如果大于0，则键盘将输入框遮挡，需调节高度，小于0，则不需要调节
CGFloat offset = _currentf_y + _currentf_heihgt - (FUll_VIEW_HEIGHT - keyboardheight);
//取得键盘的动画时间，这样可以在视图上移的时候更连贯
double duration = [[aNotification.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
//将视图上移计算好的偏移
NSLog(@"........%f",offset);
if(offset > 0) {
[UIView animateWithDuration:duration animations:^{
blackGroundView.frame = CGRectMake(0.0f,-offset, blackGroundView.frame.size.width, blackGroundView.frame.size.height);
}];
NSLog(@"hhhahjfjhsffksfkjs");
}
}
-(void)keyboardwillHiden:(NSNotification*)notification{
double duration= [[[notification userInfo]objectForKey:UIKeyboardAnimationDurationUserInfoKey]doubleValue];
[UIView animateWithDuration:duration animations:^{
blackGroundView.frame = CGRectMake(0.0f,NAVIGATION_BAR_HEIGHT, blackGroundView.frame.size.width, blackGroundView.frame.size.height);
}];
}
