I'm trying to create a static utility class which will contain simple functions like Messagebox(AlertDialog), EmailSender, etc... and will call these functions on other activites. But as I understand I can not create a static class if it is not in a class. What do you suggest for this kind of utility classes?
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what about using a Singleton? I frequently use this pattern if I want to have statefull shared functionalities among different activities. – elbuild Oct 19 '13 at 14:55
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Can you give an example please. – sa_ Oct 19 '13 at 15:00
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What you should do is to create a singleton properly by: http://stackoverflow.com/questions/70689/what-is-an-efficient-way-to-implement-a-singleton-pattern-in-java – zegnus Oct 19 '13 at 15:35
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right way to create utility class http://stackoverflow.com/a/31581218/3496570 – Zar E Ahmer Jul 23 '15 at 07:50
1 Answers
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Why not make it that way
class Utils{
public static void makeToast(Context context, String text){
Toast.makeText(context, text, Toast.LENGTH_SHORT).show();
}
}
In your activity call it this way
Utils.makeToast(this,"hi");

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A better approach for a utilities class is to make the class `final` and add a `private` constructor. – jt-gilkeson Jun 25 '15 at 20:15