NSOutlineView with 2 columns, text and check - cocoa

I have done this :
That is NSOutlineView with two columns, first column is TextCell and on second column I drag and drop Check Box Cell.
Now, I set true all rows so :
-(id)outlineView:(NSOutlineView *)outlineView objectValueForTableColumn:(NSTableColumn *) tableColumn byItem:(id)item {
if ([[tableColumn identifier] isEqualToString:#"name"]) {
return [item name];
} else if ([[tableColumn identifier] isEqualToString:#"sel"]) {
return #"1"; //for NSOnState
//return #"0"; //for NSOffState
}
}
Now I want that when user click on checkbox it go to NSOffState and I try inside method so :
-(void)outlineView:(NSOutlineView *)outlineView setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item {
[item setSel:NSOffState];
}
but it don't go, how can i do ?
Help me !!!

#import
#interface AppDelegate : NSObject {
NSMutableArray *array;
}
#property (assign) IBOutlet NSWindow *window;
#end
#import "AppDelegate.h"
#implementation AppDelegate
#synthesize window = _window;
- (void)dealloc
{
[super dealloc];
}
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
// Insert code here to initialize your application
}
-(void)awakeFromNib
{
array=[[[NSMutableArray alloc]init]autorelease];
NSMutableDictionary *dc=[NSMutableDictionary dictionary];
BOOL test=YES;
NSNumber *num=[NSNumber numberWithBool:test];
[dc setObject:num forKey:#"sel"];
[dc setObject:#"name" forKey:#"name"];
[array addObject:dc];
//[self setArray:self.array];
}
- (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index ofItem:(id)item
{
return [array objectAtIndex:index];
}
- (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item
{
return NO;
}
- (NSInteger)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item
{
return [array count];
}
- (id)outlineView:(NSOutlineView *)outlineView objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
{
if ([[tableColumn identifier] isEqualToString:#"name"])
{
/*
NSString *str=[item objectForKey:#"name"];
NSLog(#"name=%#",str);*/
return #"name"; //str;
}
else if ([[tableColumn identifier] isEqualToString:#"sel"])
{
/*
NSString *str=[item objectForKey:#"sel"];
NSNumber *num=[NSNumber numberWithBool:[str boolValue]];
NSLog(#"sel=%#",num);*/
return #"0"; //num;
}
else
{
return nil;
}
}
- (void)outlineView:(NSOutlineView *)outlineView setObjectValue:(id)object forTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
{
[item setValue:object forKey:[tableColumn identifier]];
}
#end

Related

Link a search bar cell label to view controller

I am trying to create a search bar in Xcode so when you search for an item, you can click on the search result cell and it will go to a view controller but all it is doing now is going to the sea view controller and just displaying the label of the cell i clicked on.
Here is my .m file
#interface ListTableViewController () <UISearchDisplayDelegate>
#property (strong, nonatomic) NSArray *dataArray;
#property (strong, nonatomic) NSArray *searchResults;
#end
#implementation ListTableViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.dataArray = [NSArray arrayWithObjects:#"Tomb Raider", #"Little Big Planet", #"Unchanted 3", #"BlackOps 2", nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)filterContentForSearchText: (NSString *) searchText
{
NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:#"SELF CONTAINS[cd] %#", searchText];
self.searchResults = [self.dataArray filteredArrayUsingPredicate:resultPredicate];
}
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
[self filterContentForSearchText:searchString];
return YES;
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection: (NSInteger)section
{
if (tableView == self.tableView) {
return [self.dataArray count];
} else { // (tableView == self.searchDisplayController.searchResultsTableView)
return [self.searchResults count];
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (tableView == self.tableView) {
cell.textLabel.text = [self.dataArray objectAtIndex:indexPath.row];
} else {
cell.textLabel.text = [self.searchResults objectAtIndex:indexPath.row];
}
return cell;
}
#pragma mark - Table view delegate
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"showDetails"]) {
DetailsViewController *dvc = segue.destinationViewController;
NSIndexPath *indexPath = nil;
if ([self.searchDisplayController isActive]) {
indexPath = [self.searchDisplayController.searchResultsTableView indexPathForSelectedRow];
dvc.sendLabel = [self.searchResults objectAtIndex:indexPath.row];
return;
} else{
indexPath = [self.tableView indexPathForSelectedRow];
dvc.sendLabel = [self.dataArray objectAtIndex:indexPath.row];
return;
}
}
}
#end
Thanks, anything will help.
You must implement this delegate method :
// Method returns the clicked row.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
YourPushedViewController *ypVC = [[YourPushedViewController alloc] initWithNibName:#"YourPushedViewController" bundle:nil];
ypVC.selectedText = myResultArray[indexPath.row];
[self.navigationController pushViewController:ypVC animated:YES];
}
That method is response for selecting row and passing selected result to another view.
This is hint for you :Passing Data between View Controllers

saving an array of custom objects with NSCoder and then loading a UITableView from that saved data

I'm trying to save an array of objects with NSCoding when the home button or program is exited, but nothing seems to happen.
What am I doing wrong????
//Fieldbook.h custom object
#interface FieldBook : NSObject <NSCoding>
{
NSString *title;
NSDate *date;
}
#property (nonatomic, retain) NSString *title;
#property (nonatomic, retain) NSDate *date;
-(id) init:(NSString *)aTitle;
- (NSString *) description;
#end
//Fieldbook.m
#import "FieldBook.h"
#implementation FieldBook
#synthesize title, date;
-(id) init:(NSString *)aTitle
{
title = aTitle;
return self;
}
- (NSString *) description
{
NSString *desc = [NSString stringWithFormat:#"%#\n", title];
return desc;
}
- (id)initWithCoder:(NSCoder *)decoder
{
if (self = [super init])
{
self.title = [decoder decodeObjectForKey:#"title"];
self.date = [decoder decodeObjectForKey:#"date"];
}
return self;
}
- (void)encodeWithCoder:(NSCoder *)encoder
{
[encoder encodeObject:title forKey:#"time"];
[encoder encodeObject:date forKey:#"date"];
}
#end
//ViewController.h
#interface ViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UIAlertViewDelegate>
#property (weak, nonatomic) IBOutlet UITableView *myTableView;
#property (strong, nonatomic) NSMutableArray *fieldBooks;
#property (nonatomic, retain) UITextField *projectName;
- (NSString *)dataFilePath;
#end
//ViewController.m
#import "FieldBook.h"
#import "ViewController.h"
#implementation ViewController
#synthesize myTableView, fieldBooks, projectName;
- (void)viewDidLoad
{
// Do any additional setup after loading the view, typically from a nib.
[super viewDidLoad];
if(fieldBooks == nil)
fieldBooks = [[NSMutableArray alloc]init];
NSMutableArray *tempArray = [NSKeyedUnarchiver unarchiveObjectWithFile:[self dataFilePath]];
[self.fieldBooks addObjectsFromArray:tempArray];
UIApplication *app = [UIApplication sharedApplication];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(applicationWillResignActive:)
name:UIApplicationWillResignActiveNotification
object:app];
[self.myTableView reloadData];
//Set title
self.title = #"FieldBooks";
//Add edit button
self.navigationItem.leftBarButtonItem = self.editButtonItem;
//Add the add button
UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self
action:#selector(insertNewObject)];
self.navigationItem.rightBarButtonItem = addButton;
}
- (void)applicationWillResignActive:(NSNotification *)notification
{
[NSKeyedArchiver archiveRootObject:self.fieldBooks toFile:[self dataFilePath]];
}
- (NSString *)dataFilePath
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
return [documentsDirectory stringByAppendingPathComponent:#"datafile"];
}
- (void)setEditing:(BOOL)editing animated:(BOOL)animated
{
[super setEditing:editing animated:animated];
[myTableView setEditing:editing animated:animated];
}
- (void)insertNewObject
{
UIAlertView * alert = [[UIAlertView alloc] initWithTitle:#"Enter name"
message:#""
delegate:self
cancelButtonTitle:#"Cancel"
otherButtonTitles:#"OK", nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
projectName = [alert textFieldAtIndex:0];
[alert show];
}
#pragma mark - UIAlertView delegate method
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
//Only perform if OK button is pressed
if (buttonIndex == 1)
{
FieldBook *fb = [[FieldBook alloc] init:(NSString *)projectName.text];
[fieldBooks addObject:fb];
[myTableView reloadData];
NSLog(#"FieldBook created: %#", fb);
}
}
#pragma mark - UITableView Datasource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [fieldBooks count];
}
- (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];
}
FieldBook *fbName = [self.fieldBooks objectAtIndex:[indexPath row]];
cell.textLabel.text = fbName.title;
return cell;
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
//remove from NSMutable array
[fieldBooks removeObjectAtIndex:indexPath.row];
//remove from table view
[myTableView deleteRowsAtIndexPaths:#[indexPath] withRowAnimation:UITableViewRowAnimationFade];
}
}
#end

NSTableView data source editing

I'm just a beginner in Cocoa developing for Snow Leopard and I have problem with editing values in data array that displayed in NSTableView.
I tried to edit some property of my object in -tableView:setObjectValue:forTableColumn:row: and I have EXC_BAD_ACCESS after this.
My NSTableView contains one column with NSButtonCell cells and this column have identifier 'checked'.
My code is simple and looks like this:
#interface MyObj: NSObject {
BOOL checked;
}
#property (assign) BOOL checked;
#end
#imlpementation MyObj
#synthesize checked;
#end
#interface MyAppDelegate: NSObject <NSApplicationDelegate, NSTableViewDelegate, NSTableViewDataSource> {
NSMutableArray *data;
NSTableView *table;
}
#property (assign) IBOutlet NSTableView *table;
- (NSInteger) numberOfRowsInTableView:(NSTableView *)aTableView;
- (id) tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex;
- (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex;
#end
#implementation MyAppDelegate
#synthesize table;
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
data = [[NSMutableArray array] retain];
// some code that add few objects to data
// each object is instance of MyObj and I call alloc+init+retain for each
// ...
[table reloadData];
}
- (void)dealloc {
[data release];
[super dealloc];
}
- (NSInteger) numberOfRowsInTableView:(NSTableView *)aTableView {
return (data == nil ? 0 : [data count]);
}
- (id) tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex {
MyObj *obj;
obj = [data objectAtIndex:rowIndex];
NSString *identifier;
identifier = [aTableColumn identifier];
return [obj performSelector:NSSelectorFromString(identifier)];
}
- (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex {
MyObj *obj;
obj = [data objectAtIndex:rowIndex];
NSString *identifier;
identifier = [aTableColumn identifier];
if ([identifier isEqualTo:#"checked"]) {
BOOL value = [anObject boolValue];
obj.checked = value;
[data replaceObjectAtIndex:rowIndex withObject:obj];
}
[table reloadData];
}
#end
And I have raised objc_msgSend_vtable5 from -[NSButtonCell setObjectValue] method.
I found solution for my problem. I changed BOOL checked to NSNumber *checked.
- (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex {
MyObj *obj = (MyObj *)[data objectAtIndex:rowIndex];
NSString *identifier;
identifier = [aTableColumn identifier];
if ([identifier isEqualTo:#"checked"]) {
[obj setValue:[[NSNumber numberWithBool:[anObject boolValue]] retain] forKey:[aTableColumn identifier]];
}
[table reloadData];
}
And all works fine right now. I hope it helps someone.

Xcode 4.2 Xib Drop Down Menu

I have created a .xib file and I'm having a little problem.
I did a video to show you where I'm at with it. The software I am using is Xcode 4.2 and its an iOS application.
Here is a copy of the code in my view .h .m
#import <UIKit/UIKit.h>
#interface myview : UIViewController <UITableViewDelegate, UITableViewDataSource, UIPickerViewDelegate, UIPickerViewDataSource>
#property (strong, nonatomic) IBOutlet UITableView* tableView;
#property (strong, nonatomic) IBOutlet UIPickerView* pickerView;
#property (strong, nonatomic) NSMutableArray* tableData;
#property (strong, nonatomic) NSMutableArray* pickerData;
#end
#import "myview.h"
#implementation myview
#synthesize tableView, pickerView, tableData, pickerData;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
}
- (void)viewDidUnload
{
[super viewDidUnload];
tableView.delegate = self;
tableView.dataSource = self;
pickerView.delegate = self;
pickerView.dataSource = self;
tableData = [[NSMutableArray alloc] init]; // table starts empty
pickerData = [[NSMutableArray alloc] initWithObjects:#"1", #"2", #"3", #"4", #"5", nil]; // picker starts with values 1, 2, 3, 4, 5
[tableView reloadData];
[pickerView reloadAllComponents]; // Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (NSInteger)numberOfSectionsInTableView:(UITableView*)tableView {
//The number of sections in UITableView
return 1;
}
- (NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section {
// The number of rows in the UITableView
return [tableData count];
}
- (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];
}
// Set the table cell text to the appropriate value in tableDate
cell.textLabel.text = [tableData objectAtIndex:indexPath.row];
return cell;
}
- (void)tableView:(UITableView*)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// Whatever happens when you select a table view row.
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
// The number of sections in the UIPickerView
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
// The number of rows in the UIPickerView
return [pickerData count];
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
// The data for each row in the UIPickerView
return [pickerData objectAtIndex:row];
}
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
// whatever you want to happen when a row is selected.
// here I am assuming you want to remove from the picker and add to the table on selection
[tableData addObject:[pickerData objectAtIndex:row]];
[pickerData removeObjectAtIndex:row];
[tableView reloadData];
[pickerView reloadAllComponents];
}
#end
I know this is super old and the video is removed so I am not sure what the exact problem is but it is most certainly related to you instantiating everything in our viewDidUnload... You should be doing this in your viewDidLoad most likely.

unable to handover a string to my method

I have a problem in getting a method to work, and I am totally confused.
I am unable to hand over a string as a variable for my method.
I call the function even with the string, no variable currently.
Engine *myEngine = [Engine sharedInstance];
[myEngine getContentArrayFromEngine:#"zumbra"];
My method
-(NSMutableArray*) getContentArrayFromEngine:(NSString *)catName{
NSMutableSet* categorieContent = [[NSMutableSet alloc] init];
NSLog(#"Catname:%#", catName);
//some more code
}
NSLOG output
2011-12-18 18:49:44.165 Zitate[77224:15203] Catname:(null)
Why is catName empty ???
edit1: the complete code
ThirdViewController.m
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
NSString* myTempCatname;
myTempCatname = cell.textLabel.text;
// NSLog(#"test select %#", myTempCatname);
DetailViewController *detailVC = [self.storyboard instantiateViewControllerWithIdentifier:#"detailzitat"];
[self.navigationController pushViewController:detailVC animated:YES];
Engine *myEngine = [Engine sharedInstance];
[myEngine getContentArrayFromEngine:myTempCatname];
}
and in the engine.m
-(NSMutableArray*) getContentArrayFromEngine:(NSString *)catName{
NSMutableSet* categorieContent = [[NSMutableSet alloc] init];
NSLog(#"Übergebener Catname:%#", catName);
// catName=#"zumbra";
// NSLog(#"Inhalt InhalteFromWeb:%#", InhalteFromWeb);
NSLog(#"Catname:%#", catName);
unsigned count = [InhalteFromWeb count];
while (count--) {
NSLog(#"count %d %#", count, [[InhalteFromWeb objectAtIndex:count] objectForKey:CATEGORY]);
if([[[InhalteFromWeb objectAtIndex:count] objectForKey:CATEGORY] isEqualToString:catName]) {
[categorieContent addObject:[InhalteFromWeb objectAtIndex:count]];
NSLog(#"Row %d has Content%#",count, [InhalteFromWeb objectAtIndex:count]);
}
}
NSLog(#"Inhalt Category:%#", categorieContent);
NSArray* tempAr = [[NSArray alloc] initWithArray:[categorieContent allObjects]];
return [NSMutableArray arrayWithArray:tempAr];
}
EDIT2:
Ok, even the hint with the catName did not work. so I have changed my code a little bit.
I have an array with a category, title, content, author, image for each row
I would like to do two things
1) get a unique list of all categories (its working fine)
2) when tapping on one of these categories , open a detailView , show the first element of this category, jump to previous and next item in category by swiping around.
For this, I am going to SET the category I have chosen
First try was to handover in the method, which did not work.
Now I though, SET the category in my engine.h and when displaying the single item, get the array for this category back.
but again, the value of the category is not stored.
ThirdViewController.h
#import <UIKit/UIKit.h>
#import "SecondViewController.h"
#interface ThirdViewController : UIViewController<UITableViewDelegate, UITableViewDataSource> {
NSMutableArray* CategoryList;
}
#property (nonatomic, retain) NSMutableArray* CategoryList;
#end
ThirdViewController.m
#import "ThirdViewController.h"
#import "engine.h"
#import "DetailViewController.h"
#implementation ThirdViewController
#synthesize CategoryList;
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
Engine *myEngine = [Engine sharedInstance];
CategoryList = [myEngine getCategories];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [CategoryList count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier =#"Cell";
UITableViewCell *cell = (UITableViewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [CategoryList objectAtIndex:indexPath.row];
return cell;
}
-(void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
NSString* myTempCatname;
myTempCatname = cell.textLabel.text;
DetailViewController *detailVC = [self.storyboard instantiateViewControllerWithIdentifier:#"detailzitat"];
[self.navigationController pushViewController:detailVC animated:YES];
Engine *myEngine = [Engine sharedInstance];
[myEngine setCategName:myTempCatname];
NSLog(#"Aufruf %#", myTempCatname);
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end
DetailViewController.h
#import <UIKit/UIKit.h>
#import <MessageUI/MFMailComposeViewController.h>
#import "engine.h"
#interface DetailViewController : UIViewController<MFMailComposeViewControllerDelegate> {
IBOutlet UILabel *authorLabel;
IBOutlet UILabel *categoryLabel;
IBOutlet UILabel *titleLabel;
IBOutlet UITextView *contentTextView;
NSString *authorText, *contentText, *categoryText, *titleText, *imageText, *catName;
NSMutableArray *contentArray;
}
#property (nonatomic, retain) IBOutlet UITextView *contentTextView;
#property (nonatomic, retain) IBOutlet UILabel *authorLabel;
#property (nonatomic, retain) IBOutlet UILabel *categoryLabel;
#property (nonatomic, retain) IBOutlet UILabel *titleLabel;
#property (nonatomic, retain) NSString *authorText, *contentText, *categoryText, *titleText, *imageText, *catName;
#property (nonatomic, retain) NSMutableArray *contentArray;
-(IBAction)vorher:(id)sender;
-(IBAction)nachher:(id)sender;
#end
DetailViewController.m
#import "DetailViewController.h"
#implementation DetailViewController
#synthesize contentTextView;
#synthesize authorText, contentText, categoryText, titleText, imageText;
#synthesize authorLabel, categoryLabel, titleLabel;
#synthesize contentArray;
#synthesize catName;
int contentIndex;
int contentMax;
- (IBAction)swipeDetected:(UIGestureRecognizer *)sender {
NSLog(#"Right Swipe detected");
}
-(IBAction) vorher:(id)sender {
NSLog(#"-----VORHER Button gedrückt-------");
if (contentIndex==0) {contentIndex=contentMax-1;}
else {contentIndex--;}
titleText = [[contentArray objectAtIndex:contentIndex] objectForKey:TITLE];
authorText= [[contentArray objectAtIndex:contentIndex] objectForKey:AUTHOR];
contentText= [[contentArray objectAtIndex:contentIndex] objectForKey:CONTENT];
authorLabel.text=authorText;
titleLabel.text=titleText;
contentTextView.text=contentText;
}
-(IBAction) nachher:(id)sender {
NSLog(#"-----Nachher Button gedrückt-------");
if (contentIndex==contentMax-1) {contentIndex=0;}
else {contentIndex++;}
titleText = [[contentArray objectAtIndex:contentIndex] objectForKey:TITLE];
authorText= [[contentArray objectAtIndex:contentIndex] objectForKey:AUTHOR];
contentText= [[contentArray objectAtIndex:contentIndex] objectForKey:CONTENT];
authorLabel.text=authorText;
titleLabel.text=titleText;
contentTextView.text=contentText;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
Engine *myEngine = [Engine sharedInstance];
contentArray = [myEngine getContentArrayFromEngine];
contentMax = [contentArray count];
UISwipeGestureRecognizer *swipeRecognizerRight =
[[UISwipeGestureRecognizer alloc]
initWithTarget:self
action:#selector(vorher:)];
swipeRecognizerRight.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swipeRecognizerRight];
UISwipeGestureRecognizer *swipeRecognizerLeft =
[[UISwipeGestureRecognizer alloc]
initWithTarget:self
action:#selector(nachher:)];
swipeRecognizerLeft.direction = UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:swipeRecognizerLeft];
titleText = [[contentArray objectAtIndex:contentIndex] objectForKey:TITLE];
authorText= [[contentArray objectAtIndex:contentIndex] objectForKey:AUTHOR];
contentText= [[contentArray objectAtIndex:contentIndex] objectForKey:CONTENT];
authorLabel.text=authorText;
titleLabel.text=titleText;
contentTextView.text=contentText;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#end
engine.h
//#import
#define AUTHOR #"author"
#define CATEGORY #"cat"
#define CONTENT #"content"
#define IMAGE #"image"
#define TITLE #"title"
#interface Engine : NSObject {
NSMutableArray* InhalteFromWeb;
NSInteger maxAnzahlInhalte;
NSString* categNameStorage;
}
+ (Engine *) sharedInstance;
- (NSMutableArray*) getZitateArrayFromEngine;
- (NSInteger) getMaxAnzahlZitateFromEngine;
- (NSString*) getAutor:(NSInteger)pos;
- (NSString*) getZitat:(NSInteger)pos;
- (NSString*) getAuthor:(NSInteger)pos;
- (NSString*) getCategory:(NSInteger)pos;
- (NSString*) getContent:(NSInteger)pos;
- (NSString*) getImage:(NSInteger)pos;
- (NSString*) getTitle:(NSInteger)pos;
-(NSMutableArray*) getContentArrayFromEngine;
-(void) setCategName:(NSString *) categNameVariable;
-(NSString*) getCategName;
-(NSMutableArray*) getCategories;
#end
engine.m
#import "Engine.h"
#implementation Engine
static Engine *_sharedInstance;
- (id) init
{
if (self = [super init])
{
// custom initialization
//Beginn my code
NSURL *url = [NSURL URLWithString:#"http://www.*/iMotivate.plist"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if( theConnection )
{
InhalteFromWeb = [[NSMutableArray alloc] initWithContentsOfURL:url];
maxAnzahlInhalte = [InhalteFromWeb count];
}
else
{
NSLog(#"Connection failed");
}
}
return self;
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
// NSLog(#"Recieving Response...");
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
// NSLog(#"Recieving Data...");
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Error"
message : #"An error has occured.Please verify your internet connection."
delegate:nil
cancelButtonTitle :#"OK"
otherButtonTitles :nil];
[alert show];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// NSLog(#"DONE. Received Quotes: %d", maxAnzahlZitate);
}
// ###########
+ (Engine *) sharedInstance
{
if (!_sharedInstance)
{
_sharedInstance = [[Engine alloc] init];
}
return _sharedInstance;
}
// Getter and Setter for WebArray
- (NSMutableArray*) getZitateArrayFromEngine{
return InhalteFromWeb;
}
- (NSInteger) getMaxAnzahlZitateFromEngine{
return maxAnzahlInhalte;
}
- (NSString*) getAutor:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:AUTHOR];
}
- (NSString*) getZitat:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:CONTENT];
}
// #######
- (NSString*) getAuthor:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:AUTHOR];
}
- (NSString*) getCategory:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:CATEGORY];
}
- (NSString*) getContent:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:CONTENT];
}
- (NSString*) getImage:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:IMAGE];
}
- (NSString*) getTitle:(NSInteger)pos{
return [[InhalteFromWeb objectAtIndex:pos] objectForKey:TITLE];
}
-(NSArray*) getCategories {
NSMutableSet* categorieSet = [[NSMutableSet alloc] init];
unsigned count = [InhalteFromWeb count];
while (count--) {
NSString *tempString;
tempString=[[InhalteFromWeb objectAtIndex:count] objectForKey:CATEGORY];
// NSLog(#"tempString %#", tempString );
[categorieSet addObject:tempString];
}
// NSLog(#"categories from engine %#", categorieSet);
NSArray* tempAr = [[[NSArray alloc] initWithArray:[categorieSet allObjects]]sortedArrayUsingSelector:#selector(caseInsensitiveCompare:)];
return [NSMutableArray arrayWithArray:tempAr];
}
-(void) setCategName:(NSString *) categNameVariable
{ NSLog(#"categNameStorage 2%#",categNameStorage);
categNameStorage=categNameVariable;
NSLog(#"setCategName 1 %#",categNameVariable);
NSLog(#"categNameStorage 2%#",categNameStorage);
}
-(NSString*) getCategName {
return categNameStorage;
}
-(NSMutableArray*) getContentArrayFromEngine{
NSMutableSet* categorieContent = [[NSMutableSet alloc] init];
NSLog(#"Übergebener Catname:%#", categNameStorage);
// NSLog(#"Inhalt InhalteFromWeb:%#", InhalteFromWeb);
unsigned count = [InhalteFromWeb count];
while (count--) {
// NSLog(#"count %d %#", count, [[InhalteFromWeb objectAtIndex:count] objectForKey:CATEGORY]);
if([[[InhalteFromWeb objectAtIndex:count] objectForKey:CATEGORY] isEqualToString:categNameStorage]) {
[categorieContent addObject:[InhalteFromWeb objectAtIndex:count]];
// NSLog(#"Row %d has Content%#",count, [InhalteFromWeb objectAtIndex:count]);
}
}
// NSLog(#"Inhalt Category:%#", categorieContent);
NSArray* tempAr = [[NSArray alloc] initWithArray:[categorieContent allObjects]];
return [NSMutableArray arrayWithArray:tempAr];
}
#end
There has to be a variable conflict with 'catName' in your view controller. I'm not sure why the view controller would be in scope, but I bet if you change your parameter to "inCatName" it will be fine. It's good to use naming conventions like that for this reason.

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