Use UITableView instead of UIPickerView to set UITextField text - ios

I would like to use a UITextField to enter text into a UITextField instead of UIPickerView using the UITextField .tag
The view is quite complex and consists of several views which I will explain.
htmlContainerScrollView, contains multiple
- axisContainerScrollView, contains multiple
- itemField
UITableView - used to pass text into itemField
So with that in mind, this is how I set up my htmlContainerScrollView. I have added comments to explaine what I am trying to achive.
- (void) displayViews {
// add scrollview, This view is ued to hold all of the axis (vertical scrolling only)
htmlContainerScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0, 44.0, self.view.frame.size.width, 309.0)];
//TODO: replace this array with a dynamic implementation of the axis images. Will need someone to design the images for me
imagesArray = [NSArray arrayWithObjects:[UIImage imageNamed:#"LPA.png"], [UIImage imageNamed:#"LPB.png"], [UIImage imageNamed:#"LPC.png"], [UIImage imageNamed:#"LPD.png"], [UIImage imageNamed:#"LPA.png"], [UIImage imageNamed:#"LPB.png"], [UIImage imageNamed:#"LPC.png"], [UIImage imageNamed:#"LPD.png"], [UIImage imageNamed:#"LPA.png"], [UIImage imageNamed:#"LPB.png"], [UIImage imageNamed:#"LPC.png"], [UIImage imageNamed:#"LPD.png"], [UIImage imageNamed:#"LPA.png"], [UIImage imageNamed:#"LPB.png"], [UIImage imageNamed:#"LPC.png"], [UIImage imageNamed:#"LPD.png"], [UIImage imageNamed:#"LPA.png"], [UIImage imageNamed:#"LPB.png"], [UIImage imageNamed:#"LPC.png"], [UIImage imageNamed:#"LPD.png"], [UIImage imageNamed:#"LPA.png"], [UIImage imageNamed:#"LPB.png"], [UIImage imageNamed:#"LPC.png"], [UIImage imageNamed:#"LPD.png"], nil];
// Loop creates each axis
tagNumber = 1; // init the tagNumver starting from 1
for(int i = 0; i< axisNo; i++) {
CGFloat y = i * 77; // places each axis 77pxl below the previous
int itemsForRow = [itemsArray[i] intValue]; // get the current number of items for this axis
int scrollWidth = (itemsForRow * 40)+4; // calculate scroll width using the umber of items for this axis * by the size of each item.textfield
// create axis scroll view (horizontal scrolling only)
UIScrollView *axisContainerScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0, y,self.view.frame.size.width, 77.0)]; //device view width etc.
axisContainerScrollView.contentSize = CGSizeMake(scrollWidth, 77.0); // axis.view scrollable width
axisContainerScrollView.backgroundColor = [UIColor whiteColor];
[htmlContainerScrollView addSubview:axisContainerScrollView];
// make sure the view goes right to the edge of the screen.
UIView *view = [[UIView alloc] init];
view.frame = CGRectMake(0.0, 0.0, scrollWidth+10, 77.0);
//grey header for each cell, if the total number of items exceeds the width of the device view then make the header the correct size
if(scrollWidth > self.view.frame.size.width) {
topBorder = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, scrollWidth, 18.0)];
topBorder.backgroundColor = [UIColor colorWithRed:colorController.fbRed/255.0 green:colorController.fbGreen/255.0 blue:colorController.fbBlue/255.0 alpha:1.0];
} else {
topBorder = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, self.view.frame.size.width, 18.0)];
topBorder.backgroundColor = [UIColor colorWithRed:colorController.fbRed/255.0 green:colorController.fbGreen/255.0 blue:colorController.fbBlue/255.0 alpha:1.0];
}
[axisContainerScrollView addSubview:topBorder];
[axisContainerScrollView addSubview:view];
int itemsCount = [itemsArray[i] intValue];
// add axis image to each scrollview (i.e. a, b, c, d, e, f, g etc.)
UIImageView *currentAxisImage = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, y, 18.0, 18.0)];
currentAxisImage.image = imagesArray[i];
[htmlContainerScrollView insertSubview:currentAxisImage aboveSubview:view];
// loop creates each item for current axis
for (int i = 0; i < itemsCount; i++) {
// create header for itemField
itemHeaderLabel = [[UILabel alloc] initWithFrame:CGRectMake((i*40)+2, 20, 40, 15)];
itemHeaderLabel.backgroundColor = [UIColor colorWithRed:colorController.grRed/255.0 green:colorController.grGreen/255.0 blue:colorController.grBlue/255.0 alpha:1.0];
[itemHeaderLabel setTextAlignment:NSTextAlignmentCenter];
itemHeaderLabel.font = [UIFont fontWithName:#"Helvetica" size:14];
itemHeaderLabel.textColor = [UIColor whiteColor];
NSString *strFromInt = [NSString stringWithFormat:#"%d",i+1]; // start from 1 not 0
itemHeaderLabel.text = strFromInt;
[view addSubview:itemHeaderLabel];
// itemField is the UITextField I would like to add text too from UITableViewCell selections
itemField = [[UITextField alloc] initWithFrame:CGRectMake((i*40)+2, 35, 40, 40)];
itemField.delegate = self; // set delegate so you can use UITextField delegate methods
itemField.textColor = [UIColor blackColor];
[itemField setTextAlignment:NSTextAlignmentCenter];
itemField.font = [UIFont fontWithName:#"Helvetica" size:20];
itemField.backgroundColor=[UIColor whiteColor];
itemField.layer.borderColor = [[UIColor colorWithRed:colorController.grRed/255.0 green:colorController.grGreen/255.0 blue:colorController.grBlue/255.0 alpha:1.0] CGColor];
itemField.layer.borderWidth = 0.5f;
[view addSubview:itemField];
itemField.tag = tagNumber; // set tag
tagNumber ++;
[columnArrayOfTextFields addObject:itemField]; // array of items textfields.. not using this currently but might become usefull in the future. (legacey code)
}
[rowArrayOfTextFields addObject:columnArrayOfTextFields]; // array of arrays.. not using this currently but might become usefull in the future. (legacey code)
}
// exit loop, set first reasponder to the first itemField.
[itemField viewWithTag:1];
[itemField becomeFirstResponder];
// add the whole scrollview to the mainview.
htmlContainerScrollView.contentSize = CGSizeMake(self.view.frame.size.width, 77 *axisNo);
[self.view addSubview:htmlContainerScrollView];
}
So at this point I have created the view and assigned each itemField a unique tag value. Now I will show you my didSelectRowAtIndexPath which is not complete, I think this is where I should set the text using the UITextFieldDelegates but I am not sure how.
- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
itemField.text = selectedCell.textLabel.text; // dose not work.. dosnt call UITextfield delegates or anything
[tableView deselectRowAtIndexPath:indexPath animated:YES]; //turns the UITableViewCell button as apposed to a single press fielf
}
and finally these are my UITextFieldDelegates.
- (void)textFieldDidBeginEditing:(UITextField *)textField {
itemField.text = textField.text;
}
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
return NO; // Hide keyboard so that you can use the UITableView selections to populate the UITextfeild itemField
}
-(BOOL)textFieldShouldReturn:(UITextField*)textField;
{
currentSelected.text = textField.text;
NSInteger nextTag = currentSelected.tag + 1;
// Set next responder
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder) {
// Found next responder, so set it.
[nextResponder becomeFirstResponder];
} else {
// probably dont need this if I am not showing the UIkeyboard
[textField resignFirstResponder];
}
return NO; // We do not want UITextField to insert line-breaks.
}

You should create a custom tableview cell which has a uitextfield in it. This way you can easily set its delegate to self in cellForRowAtIndexPath like this:
- (UITableViewCell *)tableView:(UITableView *)view cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
MyCellWithTextField* cell = .. //create cell
cell.textField.delegate = self;
return cell;
}
If you don't want to put it in tableview, fix this:
[itemField viewWithTag:1];
[itemField becomeFirstResponder];
should be:
itemField = [view viewWithTag:1];
[itemField becomeFirstResponder];

Related

Get click of imageview(added dynamically) within a row of uitableview in ios

I have a tableview whose rows are dynamic and each row have n numbers of imageviews as it is in the screenshot attached
Now what I want is to know which imageview I have clicked.
NOTE : imageview is added dynamically to one view and that view is added to scrollview so that it can scroll horizontally.
And there are n numbers of row in a tableview.
EDIT:
I tried adding simple button as well above the image view just to try out if that clicks but its click also didn't work.
I tried the solution of Gesture as well but that also didn't work
CODE:
-(UITableViewCell )tableView:(UITableView )tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *strrowId ;
UITableViewCell *cell = [_tblviewScroll1 dequeueReusableCellWithIdentifier:#"cellOne"];
// create and add labels to the contentView
[cell.contentView setBackgroundColor:[UIColor colorWithRed:231.0/255.0 green:231.0/255.0 blue:231.0/255.0 alpha:1.0]];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
// cell.contentView.userInteractionEnabled=NO;
scrollView1 = (UIScrollView*)[cell.contentView viewWithTag:3];
[scrollView1 setShowsVerticalScrollIndicator:NO];
scrollView1.delegate = self;
NSArray* subviews1 = [scrollView1 subviews];
for (UIView* subview in subviews1) {
[subview removeFromSuperview];
}
if (scrollView1.contentOffset.y > 0 || scrollView1.contentOffset.y < 0 )
scrollView1.contentOffset = CGPointMake(scrollView1.contentOffset.x, 0);
[scrollView1 setBackgroundColor:[UIColor colorWithRed:231.0/255.0 green:231.0/255.0 blue:231.0/255.0 alpha:1.0]];
[scrollView1 setCanCancelContentTouches:NO];
scrollView1.indicatorStyle = UIScrollViewIndicatorStyleBlack;
scrollView1.clipsToBounds = YES
scrollView1.scrollEnabled = YES;
for (int i = 0; i <mutSubTitle.count; i++)
{
NSString *ids = #"";
UIView *viewvertically1;
viewvertically1=[[UIView alloc]init];
viewvertically1.tag = (i+1);
[viewvertically1 setUserInteractionEnabled:YES];
[viewvertically1 setBackgroundColor:[UIColor whiteColor]];
//Displaying image
NSString *strImgUrl = #"https://img.xxxx.com/";
NSString *strimge=[mutSubImag objectAtIndex:i];
strImgUrl = [strImgUrl stringByAppendingString:strimge];
NSURL *url = strImgUrl;
UIImage *image = [UIImage imageNamed:url];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
imageView.frame= CGRectMake(0, 10, 170, 110);
imageView.tag = i; // tag our images for later use when we place them in serial fashion
[imageView setUserInteractionEnabled:YES];
// images with Lazy Loading
[imageView sd_setImageWithURL:url placeholderImage:[UIImage imageNamed:#"Placeholder.png"]];
UITapGestureRecognizer *imgTapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(gestureTapEvent:)];
imgTapGesture.numberOfTouchesRequired = 1;
[imageView addGestureRecognizer:imgTapGesture];
[viewvertically1 addSubview:imageView];
[viewvertically1 addSubview:lblDesc];
[scrollView1 addSubview:viewvertically1];
//[cell bringSubviewToFront:scrollView1];
}
return cell;
}
In your cellForRowAtIndexPath method add the UITapGestureRecognizer for your Concept
// by default the imageview userInteraction is disable you need to manually enable
cell.yourimageView.userInteractionEnabled = YES;
// the following line used for assign the different tags for eachImage
cell.yourimageView.tag = indexPath.row;
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(ImageTapped:)];
tap.numberOfTapsRequired = 1;
[cell.yourimageView addGestureRecognizer:tap];
finally need to check which imageView was clicked, check the flag in selector method
-(void)ImageTapped :(UITapGestureRecognizer *) gesture
{
// you can get tag in which image is selected
NSLog(#"Tag = %d", gesture.view.tag);
}
Try giving a button instead of image view added to a view. Assign the image to button's backgroundImageView. You can then give actions for the buttons
Use UIButton as #Arun says or the imageview ur using currently add button on Image with clear background color and add tag to that button and use that click action.

unwanted white space "under" tableView subview when tableView scrolled to its content limits

I have a UITableViewCell as a subview in a custom view controller. It works great except that when it scrolls to its top or bottom of its contentSize limit, it "keeps going" and leaves some white space exposed behind it. This is particularly irritating because I do have a UIView covering the entire screen behind the tableView, and that view is set to a non-white color. I also added a subview exactly underlaying the tableview with the same background color, again attempting to block the white. I also set the UIApplication Window background color to a non white color. None of this worked.
I would have thought that even if my TableView bounces around its origin frame, the "exposed" view should match the underlying view rather than be white. How can I fix my tableView so that it retains all its scroll properties but doesn't reveal white when it bounces around at the end of a scroll?
Here is a screen shot of the effect. The white appears the tableViewHeader and below a UISCrollView that occupies the top of the screen. This appears when I scroll the tableView all the way to one extreme. The white space appears at the bottom rather than the top of the tableView if I scroll all the way to the other end.
Here's the relevant code, quite vanilla I think:
#interface JudgeViewController () <UITextFieldDelegate, UITextViewDelegate, UINavigationControllerDelegate, UIGestureRecognizerDelegate, UITableViewDataSource, UITableViewDelegate, UIViewControllerRestoration, UIScrollViewDelegate>
#property (nonatomic) UITableView *tableView;
#end
functions to set tableViewCells
#pragma mark - tableview appearance and actions
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
StatsViewController *svc = [[StatsViewController alloc] init];
svc.user = self.object.answerUser[indexPath.row];
svc.fromJudge = YES;
[self.navigationController pushViewController:svc animated:YES];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.object.answerArray count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell;
UILabel *label = nil;
cell = [tableView dequeueReusableCellWithIdentifier:#"Cell"];
if(cell ==nil)
{
cell = [[UITableViewCell alloc] initWithFrame:CGRectZero];
label = [[UILabel alloc] initWithFrame:CGRectZero];
[label setLineBreakMode: UILineBreakModeWordWrap];
[label setMinimumFontSize:SMALL_FONT_SIZE];
[label setNumberOfLines:0];
[label setFont:[UIFont systemFontOfSize:SMALL_FONT_SIZE]];
[label setTag:1];
// [[label layer] setBorderWidth:2.0f];
[[cell contentView] addSubview:label];
}
CGFloat width = [[UIScreen mainScreen] bounds].size.width;
CGFloat height = [[UIScreen mainScreen] bounds].size.height;
NSString *text = self.object.answerArray[indexPath.row];
CGSize constraint = CGSizeMake(.8*CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN)*2, 200000.0f);
CGSize size = [text sizeWithFont:[UIFont systemFontOfSize:SMALL_FONT_SIZE] constrainedToSize:constraint];
if(!label)
label = (UILabel *)[cell viewWithTag:1];
[label setText:text];
[label setFrame:CGRectMake(CELL_CONTENT_MARGIN, CELL_CONTENT_MARGIN, .8*CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN)*2, MAX(size.height, 44.0f))];
UIButton *button1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button1.frame = CGRectMake(.85*width, label.frame.size.height/2-2*CELL_CONTENT_MARGIN, .12*width, 20);
[button1 setTitle:#"UP" forState:UIControlStateNormal];
button1.titleLabel.font =[UIFont systemFontOfSize:SMALLEST_FONT_SIZE];
[button1 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button1 addTarget:self action:#selector(upVoteA:) forControlEvents:UIControlEventTouchUpInside];
[cell.contentView addSubview:button1];
[cell.contentView bringSubviewToFront:button1];
UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button2.frame = CGRectMake(.85*width, label.frame.size.height/2+2*CELL_CONTENT_MARGIN, .12*width, 20);
[button2 setTitle:#"DOWN" forState:UIControlStateNormal];
button2.titleLabel.font =[UIFont systemFontOfSize:SMALLEST_FONT_SIZE];
[button2 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button2 addTarget:self action:#selector(downVoteA:) forControlEvents:UIControlEventTouchUpInside];
CGFloat moduloResult = indexPath.row % 2;
if(moduloResult>0)
{
cell.backgroundColor = [UIColor colorWithRed:1 green:0.647 blue:0 alpha:.6];
}
else
{
cell.backgroundColor = [UIColor colorWithRed:1 green:0.647 blue:0 alpha:.4];
}
cell.opaque = NO;
cell.alpha = 0.2;
[cell.contentView addSubview:button2];
[cell.contentView bringSubviewToFront:button2];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
-(void)keyboardToJudge
{
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
if(indexPath.row < [self.object.answerArray count])
{
NSString *text = self.object.answerArray[indexPath.row];
CGSize constraint = CGSizeMake(.8*CELL_CONTENT_WIDTH - (CELL_CONTENT_MARGIN)*2, 200000.0f);
CGSize size = [text sizeWithFont:[UIFont systemFontOfSize:FONT_SIZE-2.0f] constrainedToSize:constraint];
CGFloat height = MAX(size.height, 44.0f);
return height + (CELL_CONTENT_MARGIN)*2;
}
else
{
return 200.0f;
}
}
functions setting out layout:
-(void)viewDidLoad
{
...among other things setting up top scroll view (top part of view with gray background and orange text)...
if(self.navigationController.navigationBar.frame.size.height>0)
{
self.scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 5, width, height*SCROLL_VIEW_OFFSET)];
}
else
{
self.scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, statusBarHeight+5, width, height*SCROLL_VIEW_OFFSET)];
}
self.scroll.backgroundColor = BACKGROUND_COLOR;
self.scroll.contentSize =CGSizeMake(width, .5*height);
self.scroll.delegate = self;
self.scroll.contentInset = UIEdgeInsetsMake(30, 0, 30, 0);
[self.scroll setShowsHorizontalScrollIndicator:NO];
...adding buttons to self.scroll...
[self.view addSubview:self.scroll];
....
self.tableView = [[UITableView alloc] initWithFrame:frame];
self.tableView.delegate = self;
self.tableView.dataSource = self;
self.tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, _width, _height*.1)];
self.tableView.tableFooterView.backgroundColor = BACKGROUND_COLOR;
self.tableView.tableHeaderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, _width, _height*.1)];
self.tableView.tableHeaderView.backgroundColor = BACKGROUND_COLOR;
....tableView hidden state is changed to yes in another function if row count is zero but not usually...
self.tableView.hidden = NO;
[self.view addSubview:self.tableView];
...
}
Finally, I also call :
[self.tableView reloadData];
after reloading data from a webserver and depending on the results either set the tableView to hidden or not (not hidden if there are results to display). That should be every line of code that touches the tableView subview.
Add to your viewDidLoad
[self.tableView setBackgroundColor:BACKGROUND_COLOR];
Set the background color of your tableView and you'll be fine
Change this line:
self.scroll.contentInset = UIEdgeInsetsMake(30, 0, 30, 0);
To this:
self.scroll.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
You are adding a footer to your tableview with that line. The following image is from the IOS dev Library
Set the table view estimate to 0 (Uncheck Automatic) in the size inspector

UITableViewCell with subviews is not working properly

I have UITableView in my iOS app and I want to add some subviews to cell. I do it by using
[cell.contentView addSubview:someView];
and it works well, but... When I scroll down, subviews are starting to hide from cells that are on top and when I scroll back to top, they wont appear again... What I'm doing wrong? Is there some solution please?
EDIT
Mainly, I'm talking about "detailtext" label, but I have those problems in more cases...
Here is whole code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell;
switch (indexPath.row) {
case 0:
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
break;
default:
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
break;
}
UIView *separatorLine = [[UIView alloc] init];
separatorLine.frame = CGRectMake(15.0f, 60 - 0.5f, cell.frame.size.width-15.0f, 0.5f);
separatorLine.tag = 4;
separatorLine.backgroundColor = [UIColor lightGrayColor];
cell.layer.masksToBounds = NO;
tableView.backgroundColor = [UIColor colorWithRed:33.0 / 255.0 green:157.0 / 255.0 blue:147.0 / 255.0 alpha:1.0];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
UIView *row2 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 200)];
UIView *profileBorder = [[UIView alloc] initWithFrame:CGRectMake(self.view.frame.size.width/2-50, 50, 102, 102)];
profileBorder.layer.borderColor = [UIColor whiteColor].CGColor;
profileBorder.layer.borderWidth = 5; //2
profileBorder.layer.cornerRadius = 50;
NZCircularImageView *profileImage = [[NZCircularImageView alloc] initWithFrame:CGRectMake(1,1, 100, 100)];
profileImage.image = profilePhoto;
profileImage.contentMode = UIViewContentModeScaleAspectFill;
UITapGestureRecognizer *showBigProfilePhoto = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(showImage:)];
profileImage.userInteractionEnabled = YES;
[profileImage addGestureRecognizer:showBigProfilePhoto];
[profileBorder addSubview:profileImage];
UILabel *numberFeelings = [[UILabel alloc] initWithFrame:CGRectMake(10, 100-25, 100, 50)];
numberFeelings.text = [NSString stringWithFormat:#"%#\nFeelings", feelings];
numberFeelings.font = [UIFont boldSystemFontOfSize:16];
numberFeelings.textAlignment = NSTextAlignmentCenter;
numberFeelings.textColor = [UIColor whiteColor];
numberFeelings.numberOfLines = 0;
UILabel *numberFriends = [[UILabel alloc] initWithFrame:CGRectMake(self.view.frame.size.width/2+60, 100-25, 100, 50)];
numberFriends.text = [NSString stringWithFormat:#"%#\nFollowers", friends];
numberFriends.font = [UIFont boldSystemFontOfSize:16];
numberFriends.textColor = [UIColor whiteColor];
numberFriends.numberOfLines = 0;
numberFriends.textAlignment = NSTextAlignmentCenter;
[row2 addSubview:profileBorder];
[row2 addSubview:numberFriends];
[row2 addSubview:numberFeelings];
int rectButtons = cell.frame.size.width-246;
UIImageView *graph = [[UIImageView alloc] initWithFrame:CGRectMake(rectButtons/2, -20, 82, 82)];
UIImageView *badgets = [[UIImageView alloc] initWithFrame:CGRectMake(rectButtons/2+82, -20, 82, 82)];
UIImageView *photos = [[UIImageView alloc] initWithFrame:CGRectMake(rectButtons/2+164, -20, 82, 82)];
graph.image = [UIImage imageNamed:#"graph.jpg"];
badgets.image = [UIImage imageNamed:#"badgets.jpg"];
photos.image = [UIImage imageNamed:#"photos.jpg"];
graph.userInteractionEnabled = YES;
badgets.userInteractionEnabled = YES;
photos.userInteractionEnabled = YES;
UITapGestureRecognizer *graphTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(showGraph:)];
[graph addGestureRecognizer:graphTap];
NSArray *jmenoCasti = [name componentsSeparatedByString:#" "];
krestni = [jmenoCasti objectAtIndex:0];
int indexOfPost = indexPath.row-3;
NSMutableAttributedString *str;
int countFeeling;
int countString;
int countBeforeFeeling;
if (indexPath.row >=3) {
str = [[NSMutableAttributedString alloc] initWithString:[NSString stringWithFormat:#"%# was %#", krestni, [naladyHim objectAtIndex:[[[posts objectAtIndex:indexOfPost] objectForKey:#"_feel"] integerValue]]]];
countFeeling = [[naladyHim objectAtIndex:[[[posts objectAtIndex:indexOfPost] objectForKey:#"_feel"] integerValue]] length];
countString = krestni.length+5+countFeeling;
countBeforeFeeling = countString-countFeeling+1;
int rangeStart = countBeforeFeeling-1;
int rangeStop = str.length-rangeStart;
NSLog(#"%i ... %i", countBeforeFeeling-1, countString-1);
[str addAttribute:NSFontAttributeName value: [UIFont fontWithName:#"Helvetica-Bold" size:16.0f] range:NSMakeRange(rangeStart, rangeStop)];
[str addAttribute:NSForegroundColorAttributeName value:[UIColor colorWithRed:32.0 / 255.0 green:147.0 / 255.0 blue:138.0 / 255.0 alpha:1.0] range:NSMakeRange(rangeStart, rangeStop)];
}
UILabel *mainText = [[UILabel alloc] initWithFrame:CGRectMake(15, 70, cell.frame.size.width-10, 20)];
mainText.attributedText = str;
UILabel *detailText;
if (!detailText) {
detailText = [[UILabel alloc] initWithFrame:CGRectMake(15, 90, cell.frame.size.width-10, 30)];
}
detailText.textColor = [UIColor grayColor];
detailText.font = [UIFont systemFontOfSize:13];
switch (indexPath.row) {
case 0:
cell.textLabel.textAlignment = NSTextAlignmentCenter;
cell.textLabel.text = name;
cell.textLabel.textColor = [UIColor whiteColor];
cell.textLabel.font = [UIFont systemFontOfSize:20];
cell.backgroundColor = [UIColor clearColor];
break;
case 1:
[cell.contentView addSubview:row2];
cell.backgroundColor = [UIColor clearColor];
break;
case 2:
cell.backgroundColor = [UIColor colorWithRed:236.0 / 255.0 green:235.0 / 255.0 blue:210.0 / 255.0 alpha:1.0];
[cell.contentView addSubview:graph];
[cell.contentView addSubview:badgets];
[cell.contentView addSubview:photos];
break;
default:
detailText.text = [[posts objectAtIndex:indexPath.row-3] objectForKey:#"_text"];
[cell.contentView addSubview:detailText];
cell.textLabel.attributedText = str;
cell.backgroundColor = [UIColor colorWithRed:236.0 / 255.0 green:235.0 / 255.0 blue:210.0 / 255.0 alpha:1.0];
break;
}
return cell; }
This is an easy way thats works for me:
for(UIView *subview in cell.contentView.subviews)
{
if([subview isKindOfClass: [UIView class]])
{
[subview removeFromSuperview];
}
}
You can use it at the begin of
(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
In your tableView:cellForRowAtIndexPath:, you hide the info when you don't want it to be shown, but you don't explicitly unhide it for cells where it should be shown.
Look at the first two lines in that method: What you are - correctly - doing is reusing your cells, so when cells are scrolled out of view, they are removed from the UITableView and put into the reuse queue. Then, when cells should become visible, the TableView gets cells from that queue - or creates new ones if none are available.
This all goes very well, but after a while, cells with hidden info buttons are put on the queue. And then, some time later, those cells are reused - and sometimes for rows in which there should be info visible.
There are two solutions to this: You could either explicitly unhide the information for those rows where you want it to be shown, or you could use two different kinds of cell, one with hidden info, and one with visible info. You then give each of those cells a different identifier, and based on what row the cells are in, set the identifier before dequeuing/creating cells.
You should create a subclass of UITableViewCell for each different cell and add all your view related code that doesn't change depending on the data into an initialization method. Then create a method in each cell called something like configureWithData and pass in the data relevant to the cell. The creation of your attributed string and modification of label frames can occur in this configuration method.
It will dramatically reduce the clutter in your UITableViewController and is much better design wise. There is no real need for your view controller to know what your table cells look like.
Here is an example of what I am talking about:
-(void)awakeFromNib
{
if( self.accessoryType == UITableViewCellAccessoryDisclosureIndicator )
{
DTCustomColoredAccessory *accessory = [DTCustomColoredAccessory accessoryWithColor:[UIColor whiteColor]];
accessory.highlightedColor = [UIColor blackColor];
self.accessoryView = accessory;
}
}
-(void)configureCellWithObject:(id)inObject
{
TableDataModel *dataObject = (TableDataModel *)inObject;
self.titleLabel.text = dataObject.titleString;
self.subtitleLabel.text = dataObject.subtitleString;
self.accessibilityIdentifier = dataObject.accessIdString;
if( dataObject.imageUrlString != nil )
{
UIImage *iconImage = [UIImage imageNamed:dataObject.imageUrlString];
if( iconImage != nil )
{
NSInteger yOffset = [StaticTools centerYOffset:self.frame.size objectFrameSize:iconImage.size];
self.iconImageView.image = iconImage;
CGRect frame = self.iconImageView.frame;
frame.origin.y = yOffset;
frame.size = iconImage.size;
[self.iconImageView setFrame:frame];
}
else
{
[self.iconImageView loadImageFromUrl:dataObject.imageUrlString];
}
}
}

iOS Table View Cell dont draw the first element after scrolling

I create a table View with a CAGradiantLayer background.
Then I created Labels in the TableViewCell and give them Tags.
Now is my problem, that the next cell after scrolling dont appear. It seems like the next cell is overdrawing or don't get the attributes from the Subclass of UITableViewCell. But the cells after that one cell appears. If I remove the bgLayer it works. I don't know why.
This is the subclass of UITableView
- (void)drawRect:(CGRect)rect
{
NSArray *count = [Elements getElements];
CGFloat height = count.count * 44;
CGRect newRect = rect;
CAGradientLayer *bgLayer = [BGLayer getGreyGradient];
newRect.size.height = height;
bgLayer.frame = newRect;
[self.layer insertSublayer:bgLayer atIndex:0];
and this from UITableViewCell
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
UIView *bg = [[UIView alloc] init];
self.opaque = NO;
self.backgroundColor = [UIColor clearColor];
if(selected)
{
bg.backgroundColor = [UIColor redColor];
[self setBackgroundView:bg];
// cell mit tags von 100 - 106
for(NSInteger i=100; i<107; i++)
{
UILabel *str = (UILabel *)[self viewWithTag:i];
str.textColor = [UIColor whiteColor];
}
}
else
{
bg.backgroundColor = [UIColor clearColor];
[self setBackgroundView:bg];
for(NSInteger i=100; i<107; i++)
{
UILabel *str = (UILabel *)[self viewWithTag:i];
str.textColor = [UIColor blackColor];
}
}
[super setSelected:selected animated:animated];
Thanks for help

Header image not resizable in expandable table

I am pretty new to Xcode and this simple problem has been driving me mad! I have created an expandable table that works fine. This is some of the code on a UIView subclass for the section that expands when you tap on a cell:
- (id)initWithFrame:(CGRect)frame WithTitle: (NSString *) title Section:(NSInteger)sectionNumber delegate: (id <SectionView>) Delegate
{
self = [super initWithFrame:frame];
if (self) {
UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(discButtonPressed:)];
[self addGestureRecognizer:tapGesture];
self.userInteractionEnabled = YES;
self.section = sectionNumber;
self.delegate = Delegate;
CGRect LabelFrame = CGRectMake(100, 100, 100, 100);
LabelFrame.size.width -= 100;
CGRectInset(LabelFrame, 1.0, 1.0);
//BUTTON
CGRect buttonFrame = CGRectMake(LabelFrame.size.width, 0, 100, LabelFrame.size.height);
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = buttonFrame;
//[button setImage:[UIImage imageNamed:#"carat.png"] forState:UIControlStateNormal];
//[button setImage:[UIImage imageNamed:#"carat-open.png"] forState:UIControlStateSelected];
[button addTarget:self action:#selector(discButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:button];
self.discButton = button;
//My IMAGE
NSString *imageName = #"gradient1.png";
UIImage *myImage = [UIImage imageNamed:imageName];
UIImageView *sectionHeaderView = [[UIImageView alloc] initWithImage:myImage];
UIImageView *imageView = [[UIImageView alloc] initWithImage:myImage];
imageView.frame = CGRectMake(20,50,100,100);
[self addSubview:sectionHeaderView];
self.headerBG = sectionHeaderView;
//HEADER LABEL
UILabel *label = [[UILabel alloc] initWithFrame: CGRectMake(22, 12, sectionHeaderView.frame.size.width, 35.0)];
label.textAlignment = NSTextAlignmentLeft;
label.backgroundColor = [UIColor clearColor];
label.textColor = [UIColor whiteColor];
label.shadowColor = [UIColor darkGrayColor];
label.shadowOffset = CGSizeMake(0.0, -1.0);
label.text = title;
label.font = [UIFont fontWithName:#"AvenirNext-Bold" size:20.0];
sectionHeaderView.backgroundColor = [UIColor clearColor];
//label.textAlignment = UITextAlignmentLeft;
[self addSubview:label];
self.sectionTitle = label;
}
return self;
}
I have a custom image on the cell #"gradient1.png" but I don't seem to be able to resize it? Here is the header code in the UITableViewController:
- (UIView *) tableView:(UITableView *)tableView viewForHeaderInSection: (NSInteger)section
{
SectionInfo *array = [self.sectionInfoArray objectAtIndex:section];
if (!array.sectionView)
{
NSString *title = array.category.name;
array.sectionView = [[SectionView alloc] initWithFrame:CGRectMake(0, 10, self.tableView.bounds.size.width, 0) WithTitle:title Section:section delegate:self];
}
return array.sectionView;
}
Sorry if this is a trivial question, your help is greatly appreciated!
I don't see where you are trying to resize the image so I can't offer any help in why it is not resizing, but I found this confusing:
//My IMAGE
NSString *imageName = #"gradient1.png";
UIImage *myImage = [UIImage imageNamed:imageName];
UIImageView *sectionHeaderView = [[UIImageView alloc] initWithImage:myImage];
UIImageView *imageView = [[UIImageView alloc] initWithImage:myImage];
imageView.frame = CGRectMake(20,50,100,100);
[self addSubview:sectionHeaderView];
self.headerBG = sectionHeaderView;
In this part of code you create two imageviews, then you resize one and add the other to the cell (I'm assuming cell) subviews. Is it possible that you are trying to resize the view that you never added as a subview of the cell?
Also, resizing should happen inside - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath.
Make sure that you are resizing the proper view, ten make sure you are resizing it in the proper place.

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