UIResponder and multiple UIControlEvents

问题

Is there a way to call a selector for multiple UIControlEvents?

this doesn't work, but itl'll give u an idea of what i'm trying to do.

[self.slider addTarget:self action:@selector(sliderDidStopDragging:) forControlEvents:UIControlEventTouchUpInside, UIControlEventTouchUpOutside];

thanks!!

回答1:

try this way instead:

// same selector for different events
[self.button addTarget:self action:@selector(selector0:) forControlEvents:UIControlEventTouchUpInside];
[self.button addTarget:self action:@selector(selector0:) forControlEvents:UIControlEventTouchUpOutside];
// etc...

or you can use this one:

// different selectors for same event
[self.button addTarget:self action:@selector(selector1:) forControlEvents:UIControlEventTouchUpInside];
[self.button addTarget:self action:@selector(selector2:) forControlEvents:UIControlEventTouchUpInside];
// etc...

回答2:

Just OR them:

[self.button addTarget:self action:@selector(selector0:) forControlEvents:(UIControlEventTouchUpInside|UIControlEventTouchUpOutside)];

来源：https://stackoverflow.com/questions/12101108/uiresponder-and-multiple-uicontrolevents