Generic tap has happened?

Biggerplay

What's the easiest way with events/blocks to know that the user has tapped the screen? it has to be the screen, so not specific to a particular sprite/image.

Daniel

If you want to get a tap happening anywhere on the stage, you can add an event listener to the stage or your root object. Since touch events bubble up, *all* of them will end up on both objects in their bubbling phase.

In this sample, I added the touch handler directly to the "Game" class, which is the root class of my game.

__weak Game *this = self; // self points to my "Game" instance

[self addEventListenerForType:SP_EVENT_TYPE_TOUCH block:^(SPTouchEvent *event)
{
    SPTouch *touch = [[event touchesWithTarget:this andPhase:SPTouchPhaseBegan]
                      anyObject];
    if (touch)
        NSLog(@"New touch");
}];

Shilo

You can also use UITapGestureRecognizer:
https://developer.apple.com/library/ios/documentation/uikit/reference/UITapGestureRecognizer_Class/Reference/Reference.html

TTStu

Hey,

I used to have to set a SPQuad the entire size of the screen in order to catch taps on "empty" areas of the stage... I guess this is not necessary any more?

(Sparrow 1.x)

Biggerplay

@Daniel, that solution doesn't work for me, although I have a SPSprite over the top of the Game SPSprite, but I was hoping that wouldn't make any difference? that's why I just need a "a tap has happened" event, rather than a "tap has happened on a sprite" event. The giant invisible button over the top of everything is still looking like the way to go 🙂

Daniel

Ah, sorry, my fault! I tested my code, but the project that I used (the scaffold) has a background that fills the entire stage, so it worked as described there.

However, if your root sprite (or the stage) is empty, you have to add the touch event handler to the *stage* instead of the root object. That way, it will fire even when the stage is empty.

To do that, use the following code instead:

__weak SPStage *stage = Sparrow.stage;

[stage addEventListenerForType:SP_EVENT_TYPE_TOUCH block:^(SPTouchEvent *event)
 {
     SPTouch *touch = [[event touchesWithTarget:stage andPhase:SPTouchPhaseBegan]
                       anyObject];
     if (touch)
         NSLog(@"New touch");
 }];

Now you will receive an event from all over the stage, empty or not.

Is that what you were looking for?