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help please


  1. sarasaad

    sarasaad New Member

    Hey guys,
    I totally new for android programming I just wanna know what the whole functions means cause I saw many codes and I understand most of the code but the functions I don't get it just like : setGravity, contentEquals, Intent, putExtra etc.
    so can anyone help me please :)
    thanks in advance

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  2. StevenHu

    StevenHu Well-Known Member

    Think of a function as a mini-program that works when it is triggered to start. For instance, you can have a function that tells the app to return to the previous page. But it doesn't actually take place until the user touches a Back button.

    This is a function called goBack(), which tells the app to go back to the previous page:

    function goBack()
    {
    window.history.back();
    }

    On a page, this Back button is all set to call, or execute, the goBack() function:

    <input type='button' value='Back' onclick='goBack()'>

    Hope this little example helps you understand functions.
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