move subview when keyboard show up - ios

Question

i am trying to show comments list by using subview. I added subview to self.view, and i added a tableview to it in order to show comments list. now i want to enable user to add comment, i tried to add another subview to the first one with text field and button in the bottom of the screen, but now i want to move this view up when the keyboard show up and then back to bottom when submitting the comment, i tried to change commentView frame when textfieldBeginEditing but it do not change !! my way do not work, do you have any idea to do what i want ?
thanks
this is what i am doing, the view called myview is what i want to move up:
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
// notification button
myView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, screenWidth,screenHeight)];
[myView setBackgroundColor:[UIColor whiteColor]];
[myView setTag:2013];
commentView = [[UIView alloc] initWithFrame:CGRectMake(0,screenHeight-70,screenWidth,70)];
[commentView setBackgroundColor:[UIColor redColor]];
// [commentView viewWithTag:2031];
table = [[UITableView alloc] initWithFrame:CGRectMake(0,50, screenWidth, screenHeight-100)];;
table.dataSource=self;
table.delegate=self;
UILabel *currentdate = [[UILabel alloc] initWithFrame:CGRectMake(0,10,screenWidth-40,50)];
currentdate.backgroundColor = [UIColor clearColor];
[currentdate setTextColor: [UIColor blueColor]];
[currentdate setText:#"Comments"];
currentdate.textAlignment= UITextAlignmentCenter;
currentdate.font = [UIFont fontWithName:#"Helvetica" size:20.0];
commentFeild = [[UITextField alloc] initWithFrame:CGRectMake(60,10,screenWidth-60,30)];
commentFeild.placeholder=#"add comment";
commentFeild.backgroundColor = [UIColor whiteColor];
[commentFeild setTextColor: [UIColor blueColor]];
commentFeild.textAlignment= UITextAlignmentRight;
commentFeild.font = [UIFont fontWithName:#"Helvetica" size:15.0];
[commentFeild.layer setCornerRadius:14.0f];
[commentFeild setTag:2113];
//[commentFeild setDelegate:self];
UIButton *doneBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
doneBtn.frame = CGRectMake(screenWidth-45, 10,40, 30);
doneBtn.backgroundColor = [ UIColor clearColor];
[doneBtn setTitle:#"done" forState:UIControlStateNormal];
[doneBtn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[doneBtn addTarget:self action:#selector(hide) forControlEvents:UIControlEventTouchUpInside];
UIButton *add=[UIButton buttonWithType:UIButtonTypeRoundedRect];
add.frame = CGRectMake(5,10,50,30);
add.backgroundColor = [ UIColor clearColor];
[add setTitle:#"add" forState:UIControlStateNormal];
[add setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[add addTarget:self action:#selector(addComment) forControlEvents:UIControlEventTouchUpInside];
if(![taskObject.status isEqualToString:#"doneTask"])
{
[commentView addSubview:commentFeild];
[commentView addSubview:add];
}
[myView addSubview:doneBtn];
[myView addSubview:currentdate];
[myView addSubview:table];
[myView addSubview:commentView];
[self.view addSubview:myView];

Answer 1

U need to use notifications when keyboard appeared and disappeared
in viewDidLoad method add this
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:#selector(keyboardDidDisappear:) name:UIKeyboardDidHideNotification object:nil];
above methods get fired when keyboard appeared and disappeared use this to make adjustments of ur tableview
for exaple
-(void)keyboardDidShow:(NSNotification *)notification
{
NSLog(#"KeyBoard appeared");
NSDictionary *info=[notification userInfo];
NSValue *aValue=[info objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyBoardRect=[aValue CGRectValue];
keyBoardRect=[self.view convertRect:keyBoardRect fromView:nil];
CGFloat keyBoardTop=keyBoardRect.origin.y; //i am getting the height of the keyboard
self.aTableView.contentInset=UIEdgeInsetsMake(0, 0, keyBoardTop+50, 0); //adjust the height by setting the "contentInset"
}
when keyboard disappeared do like this
-(void)keyboardDidDisappear:(NSNotification *)notification
{
NSLog(#"KeyBoard Disappeared");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
self.addContactTableView.contentInset=UIEdgeInsetsMake(10, 0, 10, 0); //set to normal by setting the "contentInset"
[UIView commitAnimations];
}
a little work around this u may achieve your requirement
hope this helps u :)

Answer 2

I think you should go through the doc

Answer 3

i thought u want to move the tableview, hear is the code of yours modified one
#interface ViewController ( <UITableViewDataSource,UITableViewDelegate,UITextFieldDelegate>
{
BOOL KeyboardShown;
}
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
KeyboardShown = NO;
// Do any additional setup after loading the view, typically from a nib.
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
// notification button
UIView *myView,*commentView;
myView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, screenWidth,screenHeight)];
[myView setBackgroundColor:[UIColor whiteColor]];
[myView setTag:2013];
commentView = [[UIView alloc] initWithFrame:CGRectMake(0,screenHeight-70,screenWidth,70)];
[commentView setBackgroundColor:[UIColor redColor]];
// [commentView viewWithTag:2031];
UITableView *table;
table = [[UITableView alloc] initWithFrame:CGRectMake(0,50, screenWidth, screenHeight-100)];;
table.dataSource=self;
table.delegate=self;
table.tag = 12345;
UILabel *currentdate = [[UILabel alloc] initWithFrame:CGRectMake(0,10,screenWidth-40,50)];
currentdate.backgroundColor = [UIColor clearColor];
[currentdate setTextColor: [UIColor blueColor]];
[currentdate setText:#"Comments"];
currentdate.textAlignment= NSTextAlignmentCenter;
currentdate.font = [UIFont fontWithName:#"Helvetica" size:20.0];
UITextField *commentFeild = [[UITextField alloc] initWithFrame:CGRectMake(60,10,screenWidth-60,30)];
commentFeild.placeholder=#"add comment";
commentFeild.backgroundColor = [UIColor whiteColor];
[commentFeild setTextColor: [UIColor blueColor]];
commentFeild.textAlignment= NSTextAlignmentRight;
commentFeild.font = [UIFont fontWithName:#"Helvetica" size:15.0];
[commentFeild.layer setCornerRadius:14.0f];
[commentFeild setTag:2113];
commentFeild.delegate = self;
//[commentFeild setDelegate:self];
UIButton *doneBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
doneBtn.frame = CGRectMake(screenWidth-45, 10,40, 30);
doneBtn.backgroundColor = [ UIColor clearColor];
[doneBtn setTitle:#"done" forState:UIControlStateNormal];
[doneBtn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[doneBtn addTarget:self action:#selector(hide) forControlEvents:UIControlEventTouchUpInside];
UIButton *add=[UIButton buttonWithType:UIButtonTypeRoundedRect];
add.frame = CGRectMake(5,10,50,30);
add.backgroundColor = [ UIColor clearColor];
[add setTitle:#"add" forState:UIControlStateNormal];
[add setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[add addTarget:self action:#selector(addComment) forControlEvents:UIControlEventTouchUpInside];
// if(![taskObject.status isEqualToString:#"doneTask"])
// {
// [commentView addSubview:commentFeild];
// [commentView addSubview:add];
// }
[myView addSubview:doneBtn];
[myView addSubview:currentdate];
[myView addSubview:table];
[myView addSubview:commentView];
[commentView addSubview:commentFeild];
[self.view addSubview:myView];
}
- (void)viewDidAppear:(BOOL)animated
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter]addObserver:self selector:#selector(keyboardDidDisappear:) name:UIKeyboardDidHideNotification object:nil];
}
- (void)viewDidDisappear:(BOOL)animated
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardDidHideNotification object:nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 5;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
cell.textLabel.text = #"hello";
return cell;
}
- (void)keyboardDidShow:(NSNotification *)notification
{
//UIView *containerView = [self.view viewWithTag:2013]; comment this and get tableview by TAG
UITableView *tableView = (UITableView *)[self.view viewWithTag:12345];
UIView *commentView = [self.view viewWithTag:1000];//i changed the tag and see u missed the tag for this view in viewDisLoad method check it once
if(!KeyboardShown)
{
KeyboardShown = YES;
NSLog(#"KeyBoard appeared");
NSDictionary *info=[notification userInfo];
NSValue *aValue=[info objectForKey:UIKeyboardFrameEndUserInfoKey];
CGRect keyBoardRect=[aValue CGRectValue];
keyBoardRect=[self.view convertRect:keyBoardRect fromView:nil];
CGFloat keyBoardTop=keyBoardRect.origin.y; //i am getting the height of the keyboard
CGRect commentViewRect = commentView.frame;
commentViewRect.origin.y = keyBoardTop - 70; //it is the height of comment view
CGRect tableRect = tableView.frame;
tableRect.size.height = tableRect.size.height - keyBoardTop + 77;//adjust the height
[UIView animateWithDuration:0.2 animations:^{
tableView.frame = tableRect;
commentView.frame = commentViewRect;
}];
}
}
- (void)keyboardDidDisappear:(NSNotification *)notification
{
// UIView *containerView = [self.view viewWithTag:2013]; //comment this
//dong same as above , ressetting the same as above
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
UITableView *tableView = (UITableView *)[self.view viewWithTag:12345];
UIView *commentView = [self.view viewWithTag:1000];
if(KeyboardShown)
{
KeyboardShown = NO;
CGRect tableRect =CGRectMake(0,50, screenWidth, screenHeight-100);
CGRect commentViewRect = CGRectMake(0,screenHeight-70,screenWidth,70);
[UIView animateWithDuration:0.2 animations:^{
tableView.frame = tableRect;
commentView.frame = commentViewRect;
}];
}
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
#end