CODEWITHSUNDEEP
objective-ciosxcode
JSA986
JSA986

Reputation: 5936

How to display an Alert view after number of taps received

As the title suggestes im trying to work out how I can show an alert after a button recives a certain amount of taps. So far ive come up with 

- (IBAction)count:(id)sender {

{
    UITouch *touch = [count];
    if (touch.tapCount == 4)
    {
}
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title" message:@"My alert text here" delegate:nil cancelButtonTitle: @"Ok" otherButtonTitles: nil];

[alert show];

 }

}

The above isnt working, Ive set up my button countas action and as an outlet counted

Upvotes: 0

Views: 111

Answers (2)

edzio27
edzio27

Reputation: 4140

Define somewhere on the begining of code static value:

static int numberTouches;

And set somewhere (in viewWillAppear):

numberTouches = 0;

Than:

- (IBAction)count:(id)sender {
{
    numberTouches++;
    if(numberTouches == 4)
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title" message:@"My alert text here" delegate:nil cancelButtonTitle: @"Ok" otherButtonTitles: nil];
        [alert show];
    }
}

Remeber to set 0 to your numberTouches in place where you want to do this, for example in viewDidDissapear, or if user taped somewhere else.

Upvotes: 0

WDUK
WDUK

Reputation: 19030

That code doesn't make a lot of sense (I'm surprised it compiles, does it?). UITouch isn't part of when you select a button. I think what you need to do is to keep a count of how many times the button is pressed, and store it as an instance variable.

For example (in your implementation):

@interface ClassName() {
    NSUInteger m_buttonTouchCount;
}
@end

// Set m_buttonTouchCount to 0 in your init/appear method, whenever it's appropriate to reset it

- (IBAction)count:(id)sender {
{
    m_touchButtonCount++
    if (m_touchButtonCount == 4)
    {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title" 
                                                        message:@"My alert text here" 
                                                       delegate:nil
                                              cancelButtonTitle:@"Ok" 
                                              otherButtonTitles:nil];
        [alert show];
        m_touchButtonCount = 0; // Not sure if you want to reset to 0 here.
    }
 }

Upvotes: 2

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