How to edit a TableView in iPhone? - iphone

Question

In my application i need an edit button for my tableview that can delete a row or can change its position.
it is really easy when i am using a default navigation bar but now in my case i am using a custom bar that is infect an imageview & now i need a button that can edit a tableview. i am not using the default navigation bar.
so plz help me

Answer 1

You just need to set the editing property of the UITableView, in your UITableViewController implement something like;
- (void) editingButtonPressed:(id)sender {
if([self isEditing]) {
[sender setText:#"Edit" forState:UIControlStateNormal];
[self setEditing:NO animated:YES];
} else {
[sender setText:#"Done" forState:UIControlStateNormal];
[self setEditing:YES animated:YES];
}
}
And hook that up to your button or image and replace the setText with setImage if you have no text.
Here is my init method for a UITableViewController using a custom UIToolbar which adds two buttons to the navigation bar in place of the right navigation bar button.
- (id) init {
[super initWithStyle:UITableViewStyleGrouped];
UIBarButtonItem *email = [[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"Email.png"] style:UIBarButtonItemStyleBordered target:self action:#selector(composeEmail:)] autorelease];
UIBarButtonItem *bookmark = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:#selector(addBookmark:)] autorelease];
[bookmark setStyle:UIBarButtonItemStyleBordered];
CustomToolbar *buttonToolbar = [[CustomToolbar alloc] initWithFrame:CGRectMake(0, 0, 93, 45)];
[buttonToolbar setBarStyle:UIBarStyleBlackTranslucent];
[buttonToolbar setItems:[NSArray arrayWithObjects:email, bookmark, nil] animated:NO];
[[self navigationItem] setTitle:#"Table with Custom Toolbar"];
[[self navigationItem] setRightBarButtonItem:[[[UIBarButtonItem alloc] initWithCustomView:buttonToolbar] autorelease]];
[buttonToolbar release];
return self;
}
When creating the buttons I use action:#selector(customMethodName) when creating the buttons to hook up my methods to the button actions in this case composeEmail and addBookmark which load the new views for those tasks.

Answer 2

you can add a button on your imageview and on that button click set your tableviewediting to yes.
here's the code how to add a imageview and button:-
UIImageView *imageView2=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
[imageView2 setImage:[UIImage imageNamed:#"bottom bar_gda.png"]];
[self.view addSubview:imageView2];
[self.view bringSubviewToFront:imageView2];
UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeCustom];
[deleteButton setFrame:CGRectMake(280, 3, 26, 36)];
deleteButton.contentMode = UIViewContentModeScaleAspectFill;
UIImage *newImage12 = [UIImage imageNamed:#"check.png"];
[deleteButton setBackgroundImage:newImage12 forState:UIControlStateNormal];
[deleteButton setBackgroundImage:newImage12 forState:UIControlStateHighlighted];
[deleteButton addTarget:self action:#selector(editmethod:) forControlEvents:UIControlEventTouchUpInside];
[imageView2 addSubview:deleteButton];

Answer 3

You have to add UIButton instance to that imageview and implement a method that will execute when an event occurs on that UIButton.
Code for the method will look like,
if(tableView.editing)
[tableView setEditing:NO animated:YES]
else
[tableView setEditing:YES animated:YES]
Read UITableView Documentation for more info.

Answer 4

YOU CAN USE SWIPE TO DELETE FEATURE.
THIS CAN BE DOEN IN FOLLOWING WAY.
you need to implement following 3 delegate method of tableView.
tableView:commitEditingStyle:forRowAtIndexPath:
tableView:canEditRowAtIndexPath:
tableView:editingStyleForRowAtIndexPath:
In method
tableView:editingStyleForRowAtIndexPath:
RETURN TYPE SHOULD BE
UITableViewCellEditingStyleDelete.