ios - UIButton's click action? -


i following book learn ios programming. uibutton, supposed have click action. saw actions touch down etc.

also, want know why default action not "touch down" "touchupinside"

i using xcode 4.3.

click action in ios represented touchupinside, since click mouse event

touchupinside, means user touched down on button, , touch up, while still on same button, normal behavior when want tap on button


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