How to get instance of main class android?

Question

I have one class which is calling other classes, this class is my main. Is it possible to get somehow instance of this main class, that in others classes i could call main class methods ?

If yes so how this should be done in android with java?

Thanks.

check out this link http://stackoverflow.com/questions/736571/using-intent-in-an-android-application-to-show-another-activity — Rithesh M, Apr 17 '12 at 07:20

score 0 · Answer 1 · answered Apr 17 '12 at 07:07

Use Singleton design pattern to achieve this.

Or if you want, you may use Static methods analogy for reusing the methods too.

For example:

public class Helper{
    public static void doSomething(){
        //do something here
    }
}

Now in your other classes, use the above method as below:

Helper.doSomething();

score 0 · Accepted Answer · answered Apr 17 '12 at 07:10

If you are creating the other classes in your main class, one approach would be to pass the current instance of your main class (i.e. `this') as a parameter to the constructors of the other classes, and have them store that reference for future use.

Alternately, you could simply pass the current instance of your main class as a parameter to the method you are calling, that needs to be able to call back.

How to get instance of main class android?

2 Answers2