TableView with Image cell, need to improve my code - xcode

I'm so frustrated with this code, It's been weeks and I can't find a solution to my problem.
My RSS application working great with some of the RSS's , it successfully pulling the image from the article into thumbnail to my table view. I figure out when the RSS XML type of file look in this structure, it's working great :
<item>
<title>" title going to be here "</title>
<description>
here is the description plus the image file <p><img src='http://img.mako.co.il/2014/05/20/maytal_7_a.jpg'/></p>
</description>
<link>
here is going to be the link
</link>
my problem is that some RSS's don't have the image in the description, so I need to pull it off the article it self .
my current cellForRowAtIndexPath code is this :
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NewsItemCell *cell = (NewsItemCell *)[tableView dequeueReusableCellWithIdentifier:STORYBOARD_KEY__ID__NEWS_ITEM_TABLE_CELL];
if (cell == nil)
{
cell = [[NewsItemCell alloc] initWithFrame:CGRectMake(0, 0, MAIN_TABLE_CELL__NEWS_ITEM_CELL_WIDTH, MAIN_TABLE_CELL__NEWS_ITEM_CELL_HEIGHT)];
}
NewsItem *currentNewsItem = [self.newsItemsForSingleSource objectAtIndex:indexPath.row];
NSString* imageURL = currentNewsItem.imageUrl;
if ( [imageURL length] > 0 ) {
[cell.thumbnailImageView setImageWithURL: [NSURL URLWithString: [imageURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]] ];
}
else {
// placeholder if no image available
// cell.thumbnailImageView.backgroundColor = [UIColor colorWithRed:0.4 green:0.4 blue:0.4 alpha:0.9];
NSString * filePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"placeholder_1.png"];
[cell.thumbnailImageView setImage:[UIImage imageWithContentsOfFile:filePath]];
}
cell.titleLabelView.text = currentNewsItem.title;
cell.newsItem = currentNewsItem;
return cell;
}
in other application I had , I used this pattern of code to grab the first image of the article and it's worked great :
MWFeedItem *item = [listadoArticulos objectAtIndex:indexPath.row];
// my Method to search and fetch the pictures to cell
if (item) {
NSString *htmlContent = item.content;
NSString *imgSrc;
// find match for image
NSRange rangeOfString = NSMakeRange(0, [htmlContent length]);
NSRegularExpression* regex = [NSRegularExpression regularExpressionWithPattern:#"(<img.*?src=\")(.*?)(\".*?>)" options:0 error:nil];
if ([htmlContent length] > 0) {
NSTextCheckingResult *match = [regex firstMatchInString:htmlContent options:0 range:rangeOfString];
if (match != NULL ) {
NSString *imgUrl = [htmlContent substringWithRange:[match rangeAtIndex:2]];
NSLog(#"url: %#", imgUrl);
NSLog(#"match %#", match);
if ([[imgUrl lowercaseString] rangeOfString:#"feedburner"].location == NSNotFound) {
imgSrc = imgUrl;
[cell.myCellImage setImageWithURL:[NSURL URLWithString:imgSrc] placeholderImage:[UIImage imageNamed:#"customItem30.png"]];
}}}}
my question is, how can I combine both of them codes ? or maybe someone can think about other solution ( like a better code than mine ) .
any help will be appreciated .
EDIT ** : Ohh I forgot to put the CellForRowAtIndex
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NewsItemCell *cell = (NewsItemCell *)[tableView dequeueReusableCellWithIdentifier:STORYBOARD_KEY__ID__NEWS_ITEM_TABLE_CELL];
if (cell == nil)
{
cell = [[NewsItemCell alloc] initWithFrame:CGRectMake(0, 0, MAIN_TABLE_CELL__NEWS_ITEM_CELL_WIDTH, MAIN_TABLE_CELL__NEWS_ITEM_CELL_HEIGHT)];
}
NewsItem *currentNewsItem = [self.newsItemsForSingleSource objectAtIndex:indexPath.row];
NSString* imageURL = currentNewsItem.imageUrl;
if ( [imageURL length] > 0 ) {
[cell.thumbnailImageView setImageWithURL: [NSURL URLWithString: [imageURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]] ];
}
else {
// placeholder if no image available
// cell.thumbnailImageView.backgroundColor = [UIColor colorWithRed:0.4 green:0.4 blue:0.4 alpha:0.9];
NSString * filePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"placeholder_1.png"];
[cell.thumbnailImageView setImage:[UIImage imageWithContentsOfFile:filePath]];
}
cell.titleLabelView.text = currentNewsItem.title;
cell.newsItem = currentNewsItem;
return cell;
}

First you can check whether the RSS feed contains any image url in the description tag using the regular expression (another application).If image is present,then only you have to create the News Item object and add that article.
NSMutableArry * newsItemsForSingleSource = [[NSMutableArray alloc]init];
for(int i=0;i<listadoArticulos.count;i++)
{
MWFeedItem *item = [listadoArticulos objectAtIndex:i];
// my Method to search and fetch the pictures to cell
if (item) {
NSString *htmlContent = item.content;
NSString *imgSrc;
// find match for image
NSRange rangeOfString = NSMakeRange(0, [htmlContent length]);
NSRegularExpression* regex = [NSRegularExpression regularExpressionWithPattern:#"(<img.*?src=\")(.*?)(\".*?>)" options:0 error:nil];
if ([htmlContent length] > 0) {
NSTextCheckingResult *match = [regex firstMatchInString:htmlContent options:0 range:rangeOfString];
if (match != NULL ) {
NSString *imgUrl = [htmlContent substringWithRange:[match rangeAtIndex:2]];
NSLog(#"url: %#", imgUrl);
NSLog(#"match %#", match);
if ([[imgUrl lowercaseString] rangeOfString:#"feedburner"].location == NSNotFound) {
imgSrc = imgUrl;
NewsItem * currentNewsItem = [[NewsItem alloc]init];
currentNewsItem.imageUrl = imgSrc;
currentNewsItem.title = #"title";
currentNewsItem.Description = #"description";
[self.newsItemsForSingleSource addObject:currentNewsItem];
[currentNewsItem release];
}}}}
}
Then populate the NewsItem in the tableview cellForRowAtIndexPath.You have news which surely contains image.

Related

Several Hyperlinks in NSTableView Cell

At the moment I have an NSTableView with a custom NSTextFieldCell that holds an NSAttributedString with some ranges with the NSLinkAttribute. I tried to integrate code from Apple's TableViewLinks example and Toomas Vather's HyperlinkTextField.
I implemented the -trackMouse Function like this:
- (BOOL)trackMouse:(NSEvent *)theEvent inRect:(NSRect)cellFrame ofView:(NSView *)controlView untilMouseUp:(BOOL)flag {
BOOL result = YES;
NSUInteger hitTestResult = [self hitTestForEvent:theEvent inRect:cellFrame ofView:controlView];
if ((hitTestResult & NSCellHitContentArea) != 0) {
result = [super trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:flag];
theEvent = [NSApp currentEvent];
hitTestResult = [self hitTestForEvent:theEvent inRect:cellFrame ofView:controlView];
if ((hitTestResult & NSCellHitContentArea) != 0) {
NSAttributedString* attrValue = [self.objectValues objectForKey:#"theAttributedString"];
NSMutableAttributedString* attributedStringWithLinks = [[NSMutableAttributedString alloc] initWithAttributedString:attrValue];
//HOW TO GET A RIGHT INDEX?
NSTableView* myTableView = (NSTableView *)[self controlView];
NSPoint eventPoint = [myTableView convertPoint:[theEvent locationInWindow] fromView:nil];
NSInteger myRow = [myTableView rowAtPoint:eventPoint];
NSRect myBetterViewRect = [myTableView rectOfRow:myRow];
__block NSTextView* myTextView = [[NSTextView alloc] initWithFrame:myBetterViewRect];
[myTextView.textStorage setAttributedString:attributedStringWithLinks];
NSPoint localPoint = [myTextView convertPoint:eventPoint fromView:myTableView];
NSUInteger index = [myTextView.layoutManager characterIndexForPoint:localPoint inTextContainer:myTextView.textContainer fractionOfDistanceBetweenInsertionPoints:NULL];
if (index != NSNotFound)
{
NSMutableArray* myHyperlinkInfos = [[NSMutableArray alloc] init];
NSRange stringRange = NSMakeRange(0, [attrValue length]);
[attrValue enumerateAttribute:NSLinkAttributeName inRange:stringRange options:0 usingBlock:^(id value, NSRange range, BOOL* stop)
{
if (value)
{
NSUInteger rectCount = 0;
NSRectArray rectArray = [myTextView.layoutManager rectArrayForCharacterRange:range withinSelectedCharacterRange:range inTextContainer:myTextView.textContainer rectCount:&rectCount];
for (NSUInteger i = 0; i < rectCount; i++)
{
[myHyperlinkInfos addObject:#{kHyperlinkInfoCharacterRangeKey : [NSValue valueWithRange:range], kHyperlinkInfoURLKey : value, kHyperlinkInfoRectKey : [NSValue valueWithRect:rectArray[i]]}];
}
}
}];
for (NSDictionary* info in myHyperlinkInfos)
{
NSRange range = [[info objectForKey:kHyperlinkInfoCharacterRangeKey] rangeValue];
if (NSLocationInRange(index, range))
{
NSURL* url = [NSURL URLWithString:[info objectForKey:kHyperlinkInfoURLKey]];
[[NSWorkspace sharedWorkspace] openURL:url];
}
}
}
}
}
return result;}
The character-Index when clicking into the cell's (nstextview's) text appears not to fit. So even if there are more than one link in the text, usually the last link is opened. My guess is that I don´t get the nsrect of the clicked cell. If so, how could I get the right NSRect?
I am glad for any suggestions, comments, code pieces - or simpler solutions (even if this would include switching to a view-based tableview).
Thanks.

UISearch bar always displays : no result

In my application, I display data from sqlite database in uitableviewsuccessfully and insert UISearchbar and display controller to display search results in an another table, the problem is that when I type a string to search, it always return : no result even if this string exists in that table!!
I think I have something wrong in method
(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText but I don't know exactly what is the problem and how to deal with it !! Here is my code :
MasterViewControllerViewController.m :
#import "MasterViewControllerViewController.h"
#import"MasterViewControllerAppDelegate.h"
#import"SingleStudent.h"
- (void)viewDidLoad {
MasterViewControllerAppDelegate* appDelegate =(MasterViewControllerAppDelegate*)[[UIApplication sharedApplication]delegate];
maListe = [[NSMutableArray alloc] init];
tampon = [[NSMutableArray alloc] init];
[maListe addObjectsFromArray:appDelegate.aryDatabase];
[tampon addObjectsFromArray:maListe];
[super viewDidLoad];
}
- (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];
}
MasterViewControllerAppDelegate* appDelegate =(MasterViewControllerAppDelegate*)[[UIApplication sharedApplication]delegate];
SingleStudent* sStudent =[appDelegate.aryDatabase objectAtIndex:indexPath.row];
cell.textLabel.text = [sStudent strName];
// Configure the cell.
return cell;
}
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
tampon2 = [[NSMutableArray alloc] init];
[tampon2 addObjectsFromArray:tampon];
[maListe removeAllObjects];
if([searchText isEqualToString:#""])
{
[maListe removeAllObjects];
[maListe addObjectsFromArray:tampon]; // Restitution des données originales
return;
}
for (NSDictionary *dict in tampon2 ){
NSString *name = [NSString stringWithFormat:#"%#", dict];
NSRange range = [name rangeOfString:searchText options:NSCaseInsensitiveSearch];
if (range.location != NSNotFound)
{
if(range.location== 0) // premiere lettre
[maListe addObject:name];}
}}
MasterViewControllerAppDelegate.m
#import "MasterViewControllerAppDelegate.h"
#import "MasterViewControllerViewController.h"
#import "SingleStudent.h"
-(void)updateNames {
databaseName = #"students7.sqlite";
NSArray* documentsPath= NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDir =[documentsPath objectAtIndex:0];
databasePath = [documentsDir stringByAppendingPathComponent:databaseName];}
-(void)checkAndCreateDatabase {
BOOL success;
NSFileManager* fileManager = [NSFileManager defaultManager];
success = [fileManager fileExistsAtPath:databasePath];
if (success) {
return;
}
NSString* databasePathFromApp = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:databaseName];
[fileManager copyItemAtPath:databasePathFromApp toPath:databasePath error:nil];
}
-(void)readWordsFromDatabase{
db = [FMDatabase databaseWithPath:databasePath];
aryDatabase = [[NSMutableArray alloc] init];
[db setLogsErrors:TRUE];
[db setTraceExecution:TRUE];
if (![db open]) {
NSLog(#"failed to open database");
return;
}
else {
NSLog(#"Opened database successfully");
}
FMResultSet* rs = [db executeQuery:#"SELECT * FROM student"];
while ([rs next]) {
int aID = [rs intForColumn:#"id"];
int aPK = [rs intForColumn:#"pk"];
NSString* aName = [rs stringForColumn:#"name"];
SingleStudent* sStudent = [[SingleStudent alloc] initWithData:aPK :aID :aName];
[aryDatabase addObject:sStudent];
[sStudent release];
}
[db close];
}
singleStudent.m
-(id)initWithData:(int)pK :(int)aId :(NSString*)name`
{
self.intPK = pK;
self.intId = aId;
self.strName = name;
return self;}
How can I solve this problem ?
I changed my code to this and it works fine here the changes if someone need it one day:
- (void)viewDidLoad {
maListe = [[NSMutableArray alloc] init];
tampon = [[NSMutableArray alloc] init];
int i;
for (i=0 ; i <= 4; i++) {
MasterViewControllerAppDelegate* appDelegate=(MasterViewControllerAppDelegate*)[[UIApplication sharedApplication]delegate];
SingleStudent* sStudent=[appDelegate.aryDatabase objectAtIndex:i];
[maListe addObject:[sStudent strName]];
}
[tampon addObjectsFromArray:maListe];
[super viewDidLoad];
}
- (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];
}
//MasterViewControllerAppDelegate* appDelegate =(MasterViewControllerAppDelegate*)[[UIApplication sharedApplication]delegate];
//SingleStudent* sStudent =[appDelegate.aryDatabase objectAtIndex:indexPath.row];
//NSString *cellValue = [sStudent strName];
NSString *cellValue = [maListe objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
// Configure the cell.
/*NSString *cellValue = [maListe objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;*/
return cell;}
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
tampon2 = [[NSMutableArray alloc] init];
[tampon2 addObjectsFromArray:tampon];
[maListe removeAllObjects];
if([searchText isEqualToString:#""])
{
[maListe removeAllObjects];
[maListe addObjectsFromArray:tampon]; // Restitution des données originales
return;
}
for(NSString *name in tampon2)
{
NSRange r = [name rangeOfString:searchText];
if(r.location != NSNotFound)
{
if(r.location== 0) // premiere lettre
[maListe addObject:name];
}
}
}

Getting reddit feed as JSON and parsing it

I'm trying to parse JSON feed from reddit.com and then display it in a tableview. The JSON looks like this:
{
kind: Listing
data: {
modhash: 3lmt2d4hq6797af804da91bde566bd067ddee68e1e7f8e0dda
children: [
{
kind: t3
data: {
domain: imgur.com
banned_by: null
media_embed: { }
subreddit: funny
selftext_html: null
selftext:
likes: null
link_flair_text: null
id: 16e9so
clicked: false
title: I left my dog unattended with the 2 year old...
num_comments: 166
score: 2213
approved_by: null
over_18: false
hidden: false
thumbnail: http://c.thumbs.redditmedia.com/DaoiOlvtdjaPBG3n.jpg
subreddit_id: t5_2qh33
edited: false
link_flair_css_class: null
author_flair_css_class: null
downs: 2481
saved: false
is_self: false
permalink: /r/funny/comments/16e9so/i_left_my_dog_unattended_with_the_2_year_old/
name: t3_16e9so
created: 1357963292
url: http://imgur.com/zGMxP
author_flair_text: null
author: ShaneNickerson
created_utc: 1357934492
media: null
num_reports: null
ups: 4694
}
...more items here
}
And here's my tableview controller code:
#import "mainRedditFunViewController.h"
#define kBgQueue dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
#define kjsonURL [NSURL URLWithString: #"http://reddit.com/r/funny/.json"
#interface mainRedditFunViewController ()
#end
#implementation mainRedditFunViewController
- (void)viewDidLoad
{
[super viewDidLoad];
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL:[NSURL URLWithString:#"http://reddit.com/r/funny/.json"]];
[self performSelectorOnMainThread:#selector(fetchedData:)
withObject:data waitUntilDone:YES];
});
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] ;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}
NSDictionary *appsdict = [jsonResults objectAtIndex:indexPath.row];
NSString *VersionString = [appsdict objectForKey:#"url"];
NSString *priceString = [appsdict objectForKey:#"author"];
NSURL *imageURL = [NSURL URLWithString:[appsdict objectForKey:#"thumbnail"]];
NSData *imageData = [NSData dataWithContentsOfURL:imageURL];
UIImage *imageLoad = [[UIImage alloc] initWithData:imageData];
cell.textLabel.text = [appsdict objectForKey:#"title"];
cell.detailTextLabel.text = [NSString stringWithFormat:#"URL: %# Author: $ %# USD",VersionString,priceString];
cell.imageView.image = imageLoad;
return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [jsonResults count];
}
- (void)fetchedData:(NSData *)responseData {
NSError* error;
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:responseData
options:kNilOptions
error:&error];
jsonResults = [json objectForKey:#"data.children"];
[self.tableView reloadData];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
However, the output is completly empty. Is there anyway I could fix it? I tried it before with another (smaller) feed and it worked fine. I'm sure if I'm doing the JSONPath formatting correctly, since I'd look like that:
-kind
->data
->children
->data (my items)
->data
->data
...
I'd appreciate any help I get!
Im sorry that this answer is late! hope that it is still needed...
I have altered your code a little bit to access the sub levels of the returned Json results.
You certainly have the right Idea but just need a few more dictionaries in your fetchedData method. If you add these dictionaries in you method underneath your NSJSONSerialization;
NSDictionary* json = [NSJSONSerialization
JSONObjectWithData:data
options:kNilOptions
error:&error];
//NSArray *Fullarray = [[NSArray alloc] initWithObjects:json, nil];
_jsonResult = [[NSMutableArray alloc] init];
NSDictionary *dataDict = [json objectForKey:#"data"];
NSDictionary *chilrenDict = [dataDict objectForKey:#"children"];
for (NSDictionary *informationFromChild in chilrenDict) {
NSLog(#"chil %#", chilrenDict);
[_jsonResult addObject:chilrenDict];
}
Then in your tableView cellForRow change your appsDict to this
NSDictionary *appsdict = [[_jsonResult objectAtIndex:indexPath.row] objectForKey:#"data"];
That should fix up the code and populate the tableView...
You can run a check on this too by checking
NSLog(#"count %i", [_jsonResult count]);
Let me know if this has been of help, happy coding. T

How to search NSMutableArray with UISearchBar?

I've searched many places but could not find the answer, so I decided to set my own question.
I populate a UITableView with data from JSON. My data structure is like this:
NSMutableArray* studentList = [(NSDictionary*)[responseString JSONValue] objectForKey:#"StudentList"];
JSON:
{
"StudentList":[
{
"StudentID":"08DH11039",
"StudentFirstName":"Nguyen Lam",
"StudentLastName":"Binhh"
},
{
"StudentID":"08DH11163",
"StudentFirstName":"Nguyen Minh",
"StudentLastName":"Duc"
},
{
"StudentID":"08DH11038",
"StudentFirstName":"Nguyen Bao",
"StudentLastName":"Khuyen"
},
{
"StudentID":"08DH11037",
"StudentFirstName":"Nguyen Tran Duy",
"StudentLastName":"Phuong"
}
]
}
Add data to UITableView:
- (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];
}
NSDictionary *student = [studentList objectAtIndex:indexPath.row];
cell.textLabel.text = [NSString stringWithFormat:#"%d. %# %#", indexPath.row+1, [student objectForKey:#"StudentFirstName"], [student objectForKey:#"StudentLastName"]];
cell.textLabel.font = [UIFont fontWithName:#"Helvetica" size:15];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
I also add a UISearchBar but it didn't work:
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
[searchData removeAllObjects];
NSArray *student;
for(student in studentListCopy) //take the n group (eg. group1, group2, group3)
{
NSLog(#"%#", student);
NSMutableArray *newGroup = [[NSMutableArray alloc] init];
NSString *element;
for(element in student)
NSRange range = [element rangeOfString:searchString
options:NSCaseInsensitiveSearch];
if (range.length > 0) { //if the substring match
[newGroup addObject:element]; //add the element to group
}
}
if ([newGroup count] > 0) {
[searchData addObject:newGroup];
}
}
return YES;
}
Please help me to get it work. I want to search FirstName or LastName, which are displayed in TableView.
I'm new to iOS programming. Thank you very much.
I think this will be useful to you for understanding how the NSMutableArray is used with a UISearchBar and UITableView. The Example which I got from the internet is here. Maybe this will help you in solving your problem

all images in table view are the same in iPhone app

I have a table view where I want a different image for each cell based on logic. Here is my cellforrowatindexpath code:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *MyIdentifier = #"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:MyIdentifier] autorelease];
}
NSInteger *row = [indexPath row];
NSString *platform = [[myStringArray objectAtIndex: row];
cell.imageView.image = [self imageForInventory:platform];
return cell;
}
Here is my imageForInventory method:
- (UIImage *)imageForInventory:(NSString *)platform {
if (platform = #"Win") {
UIImage *winImage = [UIImage imageNamed:#"Vista.png"];
return winImage;
}else if (platform = #"Mac") {
UIImage *appleImage = [UIImage imageNamed:#"Apple.png"];
return appleImage;
}else if (platform = #"Linux") {
UIImage *linuxImage = [UIImage imageNamed:#"Linux.png"];
return linuxImage;
}
return nil;
}
This shows the winImage for every row ignoring the if statements. How do I get the image to set accordingly per cell?
It's probably your comparison code, to compare strings in imageForInventory use [str1 isEqualToString:str2]. You're using = which is the assignment operator right now, but even if you change it to == it wouldn't work.

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