Passing a simple variable value for use in another class in Android

Question

What is the correct way to pass a simple variable which has its value set to use in another class? I have a counter which is incremented with a button press and when counter = 3 a method is called which loads another activity which loads another screen with a string which states the button was pressed. Here is where I want to include the number 3 passed from the counter variable in the previous class, but I am not sure the correct way to do this. I tried creating an instance of the class and connecting to the variable that way but the value is never passed and it is always 0.

Answer 1

Try following code,

public class First
{
   private static int myVarible = 0;


    private void myMethod()
    {
         myVariable = 5; // Assigning a value;
    }

    public static int getVariable()
    {
        return myVariable;
    }
}

public class Second
{
    int i = First.getVariable();  // Accessing in Another class
}

Answer 2

You may pass value via Intent - resource bundle.

Pass value from current activity,

Intent intent=new Intent(this,ResultActivity.class);
intent.putExtra("no",10);
startActivity(intent);

and in ResultActivity (onCreate),

Bundle bundle=getIntent().getExtras();
int value=bundle.getInt("no");

In case of non-activity classes, you may define a public method.

For instance,

public Integer getValue() //returns a value
{
  return 10;
}

Or

public void setValue(Integer value)
{
  ...
}