UIButton and actions problem

I am creating some UIbutton dynamically. And a user click any one of the buttons will display s开发者_运维百科omething (ex: different views). So I successfully made the buttons, get the tags. But in the IBAction method below, because all these buttons are dynamically created. So I can't use if, else if statement to show the view based on the tag number. I am thinking of using loops? any ideas?

Here is my code:

NSMutableArray *buttonsArray = [[NSMutableArray alloc] initWithObjects:nil];

for(int i = 0; i < [someArray count]; i++)
{
      button = [[UIButton alloc] initWithFrame:CGRectMake(btnX,btnY,btnW,btnH)];

    button.tag = i;

    [buttonsArray addObject:button];

    [[buttonsArray objectAtIndex:i] addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];

    button.titleLabel.text = [NSString stringWithFormat:@"Click it"];

    [self.view addSubview:button];

    btnY = btnY + 120;
}

`-(IBAction) buttonPressed:(id)sender `
{

    UIButton *btn = (UIButton *)sender;
    NSLog(@"%ld", btn.tag);

      //Don't know the number of buttons, so this is not gonna work
    if( btn.tag == 1)
    {
            //do something
    }
        if( btn.tag == 2)
    {
            //do something
    }
    if( btn.tag == 3)
    {
            //do something
    }
    if( btn.tag == 4)
    {
            //do something
    }

}

loop is not the perfect solution here i think...agree with Jennis...use switch instead of if else statement...if you want to use loop try:

-(IBAction) buttonPressed:(id)sender{
UIButton *selectedbtn = (UIButton *)sender;
for (UIButton *bttn in buttonsArray) {       
    if ([bttn.tag == selectedbtn.tag ) {
        //do something
    }
}

}

you get Multiple UIbutton ? b'coz your X and Y are same for all..

All is OK in your code except two things.

(1) Change the coordinates of buttons so you get different position for all the buttons in the view.

(2) Change the following code:

[[buttonsArray objectAtIndex:i] addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];

with this code:

[button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];

Let me know if any further help required.