Getting a cannot make a static reference to a non static method when I call AsyncTask<Void.execute

Issue

I’m using AsyncTask to load bitmaps in the background. I created a class Mybackground that inherits from AsyncTask. If I do the following it works,

new MyBackground().execute();

But when I call it this way,

MyBackground mBackground=new MyBackground();
mBackground.p1=1;
mBackground.p2="tets";
MyBackground.execute();

I get the error cannot make a static reference to a non static. Why am I getting this error. Is there a way to do this? If not what would be a good way to pass in 2 different arguments, since execute only takes in 1 parameter?

Solution

You would call mBackground.execute() which calls the execute method of a particular instance of your MyBackground class.

Calling new MyBackground().execute() creates a new MyBackground instance and then calls execute on that, which is why you don't get the error.

Take a look at Java: static and instance methods if you are unsure on what the difference between a static and instance method is.

Static methods do not require an instance of that type to exist, and static properties are shared between all instances of a class.

Answered By - Joseph Earl