Here is my code to delete value. Table view is deleting record temporary when I restart my app it will show deleted records also...
-(void)tableView:(UITableView *)atableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
[bookmarks removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationFade];
[[NSUserDefaults standardUserDefaults] setObject:bookmarks forKey:#"Bookmarks"]; [self.tableView reloadData];
}
}
Please Help.
Try this :
// Your code
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
[prefs setObject:bookmarks forKey:#"Bookmarks"];
// saving it all
[prefs synchronize];
Related
In multiple selection of tableview cell. When I select 1st cell 7th cell is also automatically get selected. I've implemented multiple cell selection functionality. I tried some methods but ain't working.
This is my code, what am I doing wrong?
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
NSUserDefaults *def = [NSUserDefaults standardUserDefaults];
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
[mytableview deselectRowAtIndexPath:indexPath animated:YES];
if ([selectedCell accessoryType] == UITableViewCellAccessoryNone) {
[def setObject:[model objectAtIndex:indexPath.row] forKey:[NSString stringWithFormat:#"model_%i",counter]];
[def setObject:[year objectAtIndex:indexPath.row] forKey:[NSString stringWithFormat:#"year_%i",counter]];
[def setObject:[colorid objectAtIndex:indexPath.row] forKey:[NSString stringWithFormat:#"colorid_%i",counter]];
[def setObject:[vin objectAtIndex:indexPath.row] forKey:[NSString stringWithFormat:#"vin_%i",counter]];
[def setObject:[price objectAtIndex:indexPath.row] forKey:[NSString stringWithFormat:#"price_%i",counter]];
[def setObject:[color objectAtIndex:indexPath.row] forKey:[NSString stringWithFormat:#"color_%i",counter]];
counter++;
[selectedCell setAccessoryType:UITableViewCellAccessoryCheckmark];
[selectedIndexes addObject:[NSNumber numberWithInt:indexPath.row]];
[selectedIndexes insertObject:[NSNumber numberWithInt:indexPath.row] atIndex:counter];
}
else
{
[selectedCell setAccessoryType:UITableViewCellAccessoryNone];
[selectedIndexes removeObject:[NSNumber numberWithInt:indexPath.row]];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:[NSString stringWithFormat:#"model_%i",counter]];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:[NSString stringWithFormat:#"year_%i",counter]];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:[NSString stringWithFormat:#"colorid_%i",counter]];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:[NSString stringWithFormat:#"vin_%i",counter]];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:[NSString stringWithFormat:#"price_%i",counter]];
[[NSUserDefaults standardUserDefaults] removeObjectForKey:[NSString stringWithFormat:#"color_%i",counter]];
counter--;
}
I am using custom tableview cell, I've checked its height also. My cellforRowAtIndexPath method looks like,
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = #"CustomCell17";
VehicleListCell *cell = (VehicleListCell *)[mytableview dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:#"VehicleListView" owner:self options:nil];
cell = [nib objectAtIndex:0];
}
return cell;
}
[selectedIndexes addObject:[NSNumber numberWithInt:indexPath.row]];
[selectedIndexes insertObject:[NSNumber numberWithInt:indexPath.row] atIndex:counter];
Here you add the same object twice. That might cause your issue.
Log selectedIndexes to see what is happening.
I am trying to save data via NSUserDefaults and view it on the tableView but nothing happen after I click on the save button, after I stop and run the application again the data that I saved it I can see it which every time it overwrite on the old data. Am I doing something wrong? Or should I use something different from NSUserDefaults?
Thanks in advance.
-(IBAction)save{
NSUserDefaults *add1 = [NSUserDefaults standardUserDefaults];
[add1 setObject:txt1.text forKey:#"txt1"];
[add1 synchronize];
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
self.dataArray = [NSArray arrayWithObjects:[prefs objectForKey:#"txt1"], nil];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [dataArray count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *string = [dataArray objectAtIndex:indexPath.row];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if(cell==nil)
{
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
cell.textLabel.text=string;
return cell;
}
There are two issues in your code:
You are not refreshing the tableview. You can do this by calling:
[self.tableView reloadData]; // Or whatever property is pointing to your tableview
Every time you save a value, you save it under the same key (txt1) and that's why you override every time. If you want a list of items (an array) and to append the item into this array, you could do something like this:
NSMutableArray *myList = [[[NSUserDefaults standardUserDefaults] valueForKey:#"myTxtList"] mutableCopy];
[myList addObject:txt1.text];
[[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithArray:myList] forKey:#"myTxtList"];
[add1 synchronize];
self.dataArray = myList;
[self.tableView reloadData];
P.S. Of course you need to set your dataArray accordingly in your viewDidLoad:
self.dataArray = [[NSUserDefaults standardUserDefaults] objectForKey:#"myTxtList"];
As A for Alpha said try that & in addition I am having doubt in your save method definition too. Just try changing it to the following
-(IBAction)save:(id)sender{
NSUserDefaults *add1 = [NSUserDefaults standardUserDefaults];
[add1 setObject:txt1.text forKey:#"txt1"];
[add1 synchronize];
[tableView reloadData];
}
This may work out for u.
I guess you need to call [yourTableView reloadData] after saving the data in userDefaults. This should solve your problem.
I have a list of favorites that are stored in the NSUserDefaults, single favorited are stored by NSDictionary:
NSUserDefaults *userPref = [NSUserDefaults standardUserDefaults];
NSMutableDictionary *bookmark = [NSMutableDictionary new];
[bookmark setValue:author.text forKey:#"author"];
[bookmark setValue:book.text forKey:#"book"];
[bookmarks addObject:bookmark];
[userPref setObject:bookmarks forKey:#"bookmarks"];
[userPref synchronize];
Everything is ok, but now I want to delete a single favorite with the swipe of a cell. I have add the method for show the the delete swipe but I do not know how to remove the single bookmark from nsuserdefaults.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger row = [indexPath row];
[self.listBookamrks removeObjectAtIndex:row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]
withRowAnimation:UITableViewRowAnimationFade];
}
NSUserDefaults *userPref = [NSUserDefaults standardUserDefaults];
NSMutableDictionary *storedBookMark = [[userPref ObjectForKey:#"bookmarks"]mutable copy];
// If you want to remove an object from the dictionary
[storedBookMark removeObjectForKey:#"Your KEy"];
// if you want to empty the dictionary
[storedBookMark removeAllObjects];
[userPref setObject: storedBookMark forKey:#"bookmarks"];
[userPref synchronize];
// if you want to store nil // go back to default state ..
[userPref setNilValueForKey:#"bookmarks];
EDIT: I got a saving and now It do not work.
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:countries forKey:#"country"];
[defaults synchronize];
Saving.
But I think I must load the arrays from the appsettings. how?
Got this now:
countries = [[NSArray alloc] initWithObjects:#"All",#"Austria",#"Belarus",#"Canada",#"Czech Republic",#"Denmark",#"Germany",#"Finland",#"France",#"Latvia",#"Norway",#"Russia",#"Slovakia",#"Slovenia",#"Switzerland",#"Sweden", #"USA", nil];
Use synchronize mathod of NSUserDefault.
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
int newRow = [indexPath row];
int oldRow = (lastIndexPath != nil) ? [lastIndexPath row] : -1;
if (newRow != oldRow)
{
UITableViewCell *newCell = [tableView cellForRowAtIndexPath:
indexPath];
newCell.accessoryType = UITableViewCellAccessoryCheckmark;
UITableViewCell *oldCell = [tableView cellForRowAtIndexPath:
lastIndexPath];
oldCell.accessoryType = UITableViewCellAccessoryNone;
lastIndexPath = indexPath;
}
NSUInteger row = [indexPath row];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
//Suppose you have used **myArrayUsedInTableView** Array to construct TableView
..................................................................................
............./*Do changes here in myArrayUsedInTableView as per your requirement*/
....................................................................................
//Now store your array myArrayUsedInTableView in NSUserDefault
[defaults setObject:myArrayUsedInTableView forKey:#"StoredArray"];
[defaults synchronize];
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
hi
i am trying to save state of ticked row in nsuserdefaults.Some how i am getting error
:setObject undeclared.
my code is as:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath];
NSInteger newRow = [indexPath row];
NSInteger oldRow = (lastIndexPath != nil) ? [lastIndexPath row] : -1;
if(newRow != oldRow)
{
newCell.accessoryType = UITableViewCellAccessoryCheckmark;
UITableViewCell *oldCell = [tableView cellForRowAtIndexPath:lastIndexPath];
oldCell.accessoryType = UITableViewCellAccessoryNone;
lastIndexPath = indexPath;
}
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
prefs = [setObject:lastIndexPath forKey:#"lastIndexPath"];
}
also i am trying to fetch row state in viewdidload method(should i fetch here?in view did load).my code is as:
- (void)viewDidLoad {
menuList=[[NSMutableArray alloc] initWithObjects:
[NSArray arrayWithObjects:#"LOCATION1",nil],
[NSArray arrayWithObjects:#"LOCATION2",nil],
[NSArray arrayWithObjects:#"LOCATION3",nil],
[NSArray arrayWithObjects:#"LOCATION4",nil],
[NSArray arrayWithObjects:#"LOCATION5",nil],
[NSArray arrayWithObjects:#"LOCATION6",nil],
[NSArray arrayWithObjects:#"LOCATION7",nil],
nil];
[self.navigationController setNavigationBarHidden:NO];
self.navigationController.navigationBar.tintColor=[UIColor blackColor];
self.navigationController.navigationBar.barStyle=UIBarStyleBlackTranslucent;
self.title=#"Location Selection";
[table reloadData];
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
if([[prefs objectForKey:#"lastIndexPath"] compare: indexPath]== NSOrderedSame){
cell.AccessoryType = UITableViewCellAccessoryCheckMark;
}
[super viewDidLoad];
}
and getting errors: indexPath Undeclared and cell undeclared.
i am getting why these errors are coming coz both of them(indexpath and cell) are not in scope,then where to place this code(nsuserdefaults data retriving code).Please guide my.
Thanks!
Try replacing this:
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
prefs = [setObject:lastIndexPath forKey:#"lastIndexPath"];
With this:
[[NSUserDefaults standardUserDefaults] setObject:lastIndexPath forKey:#"lastIndexPath"];
Your error is because you are invoking setObject:forKey: without specifying that your prefs object is calling it. So the compilor is not identifying it as a valid message. You are also trying to assing that messages output to your prefs object, which is not correct.
This said, I am pretty sure you cant store an NSIndexPath inside of a plist directly, you would either have to store as an NSNumber, NSString, or NSData.
This would look like this:
[[NSUserDefaults standardUserDefaults] setObject:[NSNumber numberWithInt:lastIndexPath.row] forKey:#"lastIndexPath"];