如何在Navigationbar中更改UISwitch的状态时更改UITableView单元格？

Question

I am having two methods in my UITableViewController class.

[self itemProcessor]; //First Method
[self listAllItems];  //Second Method

First method will get called by default from my viewDidLoad and the cellForRowAtIndexPath gets populated based on the query from my first method. I have a Programmatically created UISwitch in my viewDidLoad like the below

UISwitch *barSwitch = [[UISwitch alloc] init];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:barSwitch];
    [barSwitch addTarget:self action:@selector(setState:) forControlEvents:UIControlEventValueChanged]; //To track switch state.

- (void)setState:(id)sender
{
    BOOL state = [sender isOn];
    NSString *rez = state == YES ? @"YES" : @"NO";
    NSLog(@"state is %@",rez);

}

I should call secondMethod( [self listAllItems]; ) when the switch is off. I have all my arrays getting initialized in my viewDidLoad . How do i call two different queries based on the state change when i create the switch programmatically inside viewDidLoad ?

Answer 1

have a NSMutableArray , which you will use in viewDidLoad first, then update that array inside setState function and call tableView.reloadData()

- (void)setState:(id)sender
{
    BOOL state = [sender isOn];
    NSString *rez = state == YES ? @"YES" : @"NO";
    NSLog(@"state is %@",rez);

    if (state == YES) {
        // 
    }else{
        // myArray is declared in the .h file 
        myArray = [NSMutableArray arrayWithObjects:
                          @"str1", @"str2",
                          @"etc", nil];
        [self.tableView reloadData]; 
    }
}