Question

Hello I have some codes to create dynamic button as below:

- (void)viewDidLoad {

    for (int i = 0; i < 9; i++)   
        for (int j = 0; j < 8; j++) {  
            forControlEvents:UIControlEventTouchDown]; 
            UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
            button.frame = CGRectMake(10+i*34 , 130+j*30, 30 , 20 );
            [button setTitle:@"00" forState:  UIControlStateNormal];
            [button addTarget:self action:@selector(tapped:) forControlEvents:UIControlEventTouchUpInside];
            [self.view addSubview:button];
           button.tag = i;  
        } 
}

I hope to access one dynamic button with tag

How can I do

Welcome any comment.

Thanks interdev

Answer 1

As rekle stated, your views will be assigned the same tag. Use his suggestion to assign the tag (i*100)+j. Then to retrieve those views from another method in the same class, you can use [UIView viewWithTag:] as follows:

for (int i = 0; i < 9; i++)   
    for (int j = 0; j < 8; j++) {
        UIButton *button = [self.view viewWithTag:(i*100)+j];
        // Do more stuff here...
    }
}

Here are the Apple docs on viewWithTag.