I have a UITableView within a RootViewController and when a cell is tapped I want it to chance colour but only one should be enabled at one time.
I'm having difficulty trying to say "if CGRect does not contain tap".
.m
- (void)changeColour:(UITapGestureRecognizer *)tap
{
if (UIGestureRecognizerStateEnded == tap.state) {
UITableView *tableView = (UITableView *)tap.view;
CGPoint p = [tap locationInView:tap.view];
NSIndexPath* indexPath = [tableView indexPathForRowAtPoint:p];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
CGPoint pointInCell = [tap locationInView:cell];
if (CGRectContainsPoint(cell.frame, p)) {
UIView* view1 = [[UIView alloc] init];
view1.backgroundColor = [UIColor redColor];
[cell setBackgroundView:view1];
} else {
UIView* view1 = [[UIView alloc] init];
view1.backgroundColor = [UIColor whiteColor];
[cell setBackgroundView:view1];
}
}
}
Better way is to not to use gestures...
Use TableView Delegate methods...
To use this make sure you have assign delegates to your tableview..
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
UIView* view1 = [[UIView alloc] init];
view1.backgroundColor = [UIColor redColor];
[cell setBackgroundView:view1];
[view1 release];//for NON ARC ONLY
}
-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
UIView* view1 = [[UIView alloc] init];
view1.backgroundColor = [UIColor whiteColor];
[cell setBackgroundView:view1];
[view1 release];//for NON ARC ONLY
}
This will definitely help you
Enjoy coding........
Related
In my coding the table view will display but when i am scrolling the table view, it will completely scrolled. i have scrolled only table view cell. please any one help me. here is my code.
[super viewDidLoad];
scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0,0,320,460)];
scrollview.showsVerticalScrollIndicator=NO;
scrollview.scrollEnabled=YES;
scrollview.userInteractionEnabled=YES;
[self.view addSubview:scrollview];
scrollview.contentSize = CGSizeMake(320,900);
[scrollview addSubview:recipePhoto];
[scrollview addSubview:detailLabel];
[scrollview addSubview:prizeLabel];
[scrollview addSubview:discountLabel];
[scrollview addSubview:saveLabel];
UITableView *tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 480, 600, 400) style:UITableViewStylePlain];
[tableView setAutoresizesSubviews:YES];
[tableView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
tableView.scrollEnabled = NO;
tableView.backgroundColor=[UIColor clearColor];
[tableView setDataSource:self];
[tableView setDelegate:self];
[scrollview addSubview:tableView];
[tableView reloadData];
I don't see any problem in the code provided by you. You might want to check other parts of views or share more info here so that I can help you.
I added your code in my sample project and i was able to scroll to see the table view. Below is the code I used (almost same as yours, commented the labels)
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
UIScrollView *scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0,0,320,460)];
scrollview.showsVerticalScrollIndicator=NO;
scrollview.scrollEnabled=YES;
scrollview.userInteractionEnabled=YES;
[self.view addSubview:scrollview];
scrollview.backgroundColor = [UIColor grayColor];
scrollview.contentSize = CGSizeMake(320,900);
// [scrollview addSubview:recipePhoto];
// [scrollview addSubview:detailLabel];
// [scrollview addSubview:prizeLabel];
// [scrollview addSubview:discountLabel];
// [scrollview addSubview:saveLabel];
UITableView *tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 480, 600, 400) style:UITableViewStylePlain];
[tableView setAutoresizesSubviews:YES];
[tableView setAutoresizingMask:(UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight)];
tableView.scrollEnabled = NO;
tableView.backgroundColor=[UIColor clearColor];
[tableView setDataSource:self];
[tableView setDelegate:self];
[scrollview addSubview:tableView];
[tableView reloadData];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *cellIdentifier = #"CellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
cell.textLabel.text = [NSString stringWithFormat:#"cell %d", indexPath.row];
cell.backgroundColor = [UIColor blueColor];
return cell;
}
Here Two Way to complete that requirements are:
1.
just set contentSize of UIScrollView related to UITableView contentSize.height
just add this code after your above code
tableView.frame = CGRectMake(tableView.frame.origin.x, tableView.frame.origin.y, tableView.frame.size.width, tableView.contentSize.height);
float fscrview = tableView.frame.origin.y + tableView.contentSize.height + 20;
yourScrollView.contentSize=CGSizeMake(320, fscrview);
also set scrollEnabled = NO; to the tableView as you set in your code
and 2. When TableView is scrolled at that time set scrollEnabled = NO of UIScrollView.
I have created an app that contain tableview now i am setting background of that cell and add a view for separator. it look fine but when tebleview scroll than my separator disappear. like this,
First time
When table scroll
this is my code for adding tableview
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *SimpleTableIdentifier;
UITableViewCell * cell;
SimpleTableIdentifier = #"SimpleTableIdentifier";
cell = [tableView dequeueReusableCellWithIdentifier: nil];
if(cell == nil) {
cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier];
// Configure the cell...
UIView* bgview = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
bgview.opaque = YES;
bgview.backgroundColor = [UIColor colorWithRed:(224/255.0) green:(230/255.0) blue:(241/255.0) alpha:1];
[cell setBackgroundView:bgview];
UIView* separatorLineView = [[UIView alloc] initWithFrame:CGRectMake(0, 44, 320, 1)];
separatorLineView.backgroundColor = [UIColor colorWithRed:(74/255.0) green:(89/255.0) blue:(138/255.0) alpha:1];// you can also put image here
[cell.contentView addSubview:separatorLineView];
}
return cell;
}
USE
cell = [tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier];
Try
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *SimpleTableIdentifier;
UITableViewCell * cell;
SimpleTableIdentifier = #"SimpleTableIdentifier";
cell = [tableView dequeueReusableCellWithIdentifier: SimpleTableIdentifier];
if(cell == nil) {
cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier];
UIView* separatorLineView = [[UIView alloc] initWithFrame:CGRectMake(0, 42, 320, 1)];
[separatorLineView setTag:1];
[cell.contentView addSubview:separatorLineView];
UIView* bgview = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
bgview.opaque = YES;
bgview.backgroundColor = [UIColor colorWithRed:(224/255.0) green:(230/255.0) blue:(241/255.0) alpha:1];
[cell setBackgroundView:bgview];
}
UIView *SPview=[cell viewWithTag:1];
SPview.backgroundColor = [UIColor blueColor];// you can also put image here
return cell;
}
The problem is the frame you set for the view I changed it from 44 to 42 for the seperator line orgin and now it works fine
Move the configuring of the cell outside of
if (cell == nil) {
cell = [tableView dequeueReusableCellWithIdentifier:SimpleTableIdentifier];
}
// everything else
should do the trick.
Use it
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *SimpleTableIdentifier;
UITableViewCell * cell;
SimpleTableIdentifier = #"SimpleTableIdentifier";
cell = [tableView dequeueReusableCellWithIdentifier: nil];
if(cell == nil) {
cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier];
}
// Configure the cell...
UIView* bgview = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
bgview.opaque = YES;
bgview.backgroundColor = [UIColor colorWithRed:(224/255.0) green:(230/255.0) blue:(241/255.0) alpha:1];
[cell setBackgroundView:bgview];
UIView* separatorLineView = [[UIView alloc] initWithFrame:CGRectMake(0, 44, 320, 1)];
separatorLineView.backgroundColor = [UIColor colorWithRed:(74/255.0) green:(89/255.0) blue:(138/255.0) alpha:1];// you can also put image here
[cell.contentView addSubview:separatorLineView];
return cell;
}
Your problem is you're not configuring your cell each time you get a new one. You should populate your cell each time cellForRowAtIndexPath is called.
Try changing your code to:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *SimpleTableIdentifier;
UITableViewCell * cell;
SimpleTableIdentifier = #"SimpleTableIdentifier";
cell = [tableView dequeueReusableCellWithIdentifier: nil];
if(cell == nil) {
cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:SimpleTableIdentifier];
}
// Configure the cell...
UIView* bgview = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 1, 1)];
bgview.opaque = YES;
bgview.backgroundColor = [UIColor colorWithRed:(224/255.0) green:(230/255.0) blue:(241/255.0) alpha:1];
[cell setBackgroundView:bgview];
UIView* separatorLineView = [[UIView alloc] initWithFrame:CGRectMake(0, 44, 320, 1)];
separatorLineView.backgroundColor = [UIColor colorWithRed:(74/255.0) green:(89/255.0) blue:(138/255.0) alpha:1];// you can also put image here
[cell.contentView addSubview:separatorLineView];
return cell;
}
Good answer at here.
First add separator thru the xib file and than put this code in cellForRowAtIndexPath.
tableView.tableFooterView = [[[UIView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 10.0f)] autorelease];
I have to make a call to specific number when imageview is clicked in tableviewcell.The number to which call is made is displayed in a label beside the imageview.But I couldn't get which cell is clicked.Always its referring to the last cell.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
if(cell == nil)
{
cell =[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
lblphone = [[UILabel alloc] initWithFrame:CGRectZero];
lblphone.tag = 116;
lblphone.backgroundColor = [UIColor clearColor];
[lblphone setFont:[UIFont fontWithName:#"Helvetica" size:12]];
[lblphone setLineBreakMode:UILineBreakModeWordWrap];
[lblphone setUserInteractionEnabled:YES];
UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(labelButton:)];
tapGestureRecognizer.cancelsTouchesInView=NO;
[tapGestureRecognizer setNumberOfTapsRequired:1];
[lblphone addGestureRecognizer:tapGestureRecognizer];
[tapGestureRecognizer release];
[cell addSubview:lblphone];
myImageView = [[UIImageView alloc] initWithFrame:CGRectZero];
myImageView.tag = 120;
myImageView.image=[UIImage imageNamed:#"CallImg.png"];
UITapGestureRecognizer *tapped = [[UITapGestureRecognizer alloc] initWithTarget:self action:#selector(imageSelectedInTable:)];
[tapped setNumberOfTapsRequired:1];
[myImageView addGestureRecognizer:tapped];
[tapped release];
[cell addSubview:myImageView];
}
[myImageView setFrame:CGRectMake(10, 50,30,30)];
myImageView= (UIImageView*)[cell viewWithTag:120];
myImageView.image=[UIImage imageNamed:#"CallImg.png"];
myImageView.userInteractionEnabled=YES;
CGSize constraint5 = CGSizeMake(320, 2000.0f);
CGSize size5=[phone sizeWithFont:[UIFont fontWithName:#"Helvetica" size:14] constrainedToSize:constraint5 lineBreakMode:UILineBreakModeWordWrap];
lblphone =(UILabel *)[cell viewWithTag:116];
[lblphone setFrame:CGRectMake(45,name.frame.size.height+name.frame.origin.y,320, size5.height)];
lblphone.textAlignment=UITextAlignmentLeft;
lblphone.backgroundColor=[UIColor clearColor];
lblphone.text=[NSString stringWithFormat:#"%# ",phone ];
[lblphone sizeToFit];
}
And in the tapgesture of imageclick I am writing this :
-(IBAction)imageSelectedInTable:(UITapGestureRecognizer*)gesture
{
UIImageView *imgView = (UIImageView *) [gesture view];
UITableViewCell *cell = (UITableViewCell*)[[imgView superview]superview];
NSIndexPath *tappedIndexPath = [self.tableView indexPathForCell:cell];
NSLog(#"Image Tap %#", tappedIndexPath);
UILabel *phoneno = (UILabel *)[cell viewWithTag:116];
NSString *phoneNumber = [#"telprompt://" stringByAppendingString:phoneno.text];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:phoneNumber]];
}
But it is always referncing to the last cell clicked irrespective of which cell is clicked.Couldn't understand where im going wrong ?
I see you try to access your cell,
UITableViewCell *cell = (UITableViewCell*)[[imgView superview]superview];
but you add your image view to
[cell addSubview:myImageView];
You should be adding your image view to cell.contentView.
It looks like the image view is a subview of the cell (one step down the tree), and the code that's probing for the parent is taking two steps up ...superview superview. (That latter approach is right for nib defined cells which add subviews to the cell's contentView).
Here's a safer way to climb the view hierarchy that will work no matter how the cell was built.
- (UITableViewCell *)tableViewCellContaining:(UIView *)aView {
UIView *answer = aView;
while (answer && ![answer isKindOfClass:[UITableViewCell self]])
answer = answer.superview;
return answer;
}
I think your code will probably work if you replace this line:
UITableViewCell *cell = (UITableViewCell*)[[imgView superview]superview];
with this line
UITableViewCell *cell = [self tableViewCellContaining:imgView]
for get/know Which cell is clicked, Write Following code
UITableViewCell *cell = (UITableViewCell *)[[imgView superview]superview];
and if you alSo want to get indexPath of tapped cell then write
NSIndexPath *indexPath = [tableView indexPathForCell:cell];
EDITED :-> Another way is
Give tag of UIImageView in cellForRowAtIndexPath Method
Such like,
imageView.tag = indexPath.row;
And Use Following Code
int row = ((UIImageView*)imgView).tag; //Or// int row = ((UIGestureRecognizer *)sender).view.tag;
NSIndexPath* indexpath = [NSIndexPath indexPathForRow:row inSection:0];
UITableViewCell* cell = [table cellForRowAtIndexPath:indexPath];
Here You can get Cell of Tapped UIImageView.
Table view center cell always highlight like a picker. If I select the center cell, that value is return. If I scroll the table at the time center point must highlighted the values only change(like picker action)How to do this? Any sample code for this task. Thanks in advance.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
UILabel *modelLabel;
UIButton *modelButton;
modelButton = [UIButton buttonWithType:UIButtonTypeCustom];
modelButton.frame = CGRectMake(0.0, 0.0, LABEL_WIDTH, LABEL_HEIGHT);
modelButton.tag = indexPath.row+100;
[modelButton addTarget:nil action:#selector(modelButtonAction:) forControlEvents:UIControlEventTouchUpInside];
[[cell contentView] addSubview:modelButton];
modelLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0, 0.0, LABEL_WIDTH, LABEL_HEIGHT)];
modelLabel.text = [NSString stringWithFormat:#"%#", [[modelArray objectAtIndex:indexPath.row] valueForKey:#"Model"]];
modelLabel.tag = indexPath.row+1000;
modelLabel.backgroundColor = [UIColor clearColor];
modelLabel.textColor = [UIColor grayColor];
modelLabel.alpha = 0.5;
modelLabel.textAlignment = UITextAlignmentCenter;
modelLabel.font = EUROSLITE_FONT(14);
[[cell contentView] addSubview:modelLabel];
}
return cell;
}
The rows count is 700, 800, like this.
A UITableView extends UIScrollView. So you can implement the following delegate:
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
There you can check the scrollView.contentOffset and set the corresponding cell to highlighted. Please note, that's not the center cell. You need to add (int)(scrollView.frame.size.height/2)-(int)(cell.frame.size.height/2) on scrollView.contentOffset.y.
Example (Please de-highlight all other cells):
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
[[tableView visibleCells] makeObjectsPerformSelector:#selector(setHighlighted:) withObject:[NSNumber numberWithBool:NO]];
CGPoint center = CGPointMake(0, scrollView.contentOffset.y+(int)(scrollView.frame.size.height/2));
NSIndexPath *cellIndexPath = [tableView indexPathForRowAtPoint:center];
UITableViewCell *cell = [tableView cellForRowAtIndexPath:cellIndexPath];
[cell setHighlighted:YES];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [topics count];
}
- (UITableViewCell *) getCellContentView:(NSString *)cellIdentifier {
CGRect cellFrame = CGRectMake(0,0,320,45);
UITableViewCell *cell = [[[UITableViewCell alloc] initWithFrame:cellFrame reuseIdentifier:cellIdentifier] autorelease];
CGRect bgFrame = CGRectMake(10,5,300,35);
UIImageView *backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"list_bg_up.png"]];
backgroundView.frame = bgFrame;
[cell addSubview:backgroundView];
UILabel *txtLabel = [[UILabel alloc] initWithFrame:CGRectMake(20,10,250,25)];
txtLabel.textColor=[UIColor whiteColor];
txtLabel.backgroundColor = [UIColor clearColor];
txtLabel.tag = 1;
[cell addSubview:txtLabel];
return cell;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell;
static NSString *kDisplayCell_ID = #"DisplayCellID";
//cell = [self.tableView dequeueReusableCellWithIdentifier:kDisplayCell_ID];
cell = [tableView dequeueReusableCellWithIdentifier:kDisplayCell_ID];
if(cell == nil) {
cell = [self getCellContentView:kDisplayCell_ID];
}
aTopic = [topics objectAtIndex:indexPath.row];
UILabel *txtLabel = (UILabel *)[cell viewWithTag:1];
txtLabel.text = aTopic.description;
return cell;
}
-(CGFloat)tableView:(UITableView *)tbView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 45;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView deselectRowAtIndexPath:indexPath animated:YES];
ResourcesViewController *resViewController = [[ResourcesViewController alloc] initWithNibName:#"ResourcesViewController" bundle:[NSBundle mainBundle]];
resViewController.aTopic = [topics objectAtIndex:indexPath.row];
[self.navigationController pushViewController:resViewController animated:YES];
[resViewController release];
}
if i want to change space between cells wat i hav to change in this code ....
now with this code i am able to display cells with some gap but i didnt understand how the gap defined...
If you're talking about vertical height of the cells, change this code:
-(CGFloat)tableView:(UITableView *)tbView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 45;
}
If you're talking about the horizontal space between data in the cell, you need to modify the CGRects here:
CGRect cellFrame = CGRectMake(0,0,320,45);
UITableViewCell *cell = [[[UITableViewCell alloc] initWithFrame:cellFrame reuseIdentifier:cellIdentifier] autorelease];
CGRect bgFrame = CGRectMake(10,5,300,35);
UIImageView *backgroundView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"list_bg_up.png"]];
backgroundView.frame = bgFrame;
[cell addSubview:backgroundView];
UILabel *txtLabel = [[UILabel alloc] initWithFrame:CGRectMake(20,10,250,25)];
Next time be a little more clear about what you're asking. And don't forget to accept answers to questions you ask. Cheers
I think maybe you need a look at this SO question:
How to give space between two cells in tableview?