Is it possible to call the Internal (no visibility operator) method from a class inherited from another package?

Question

Problem

I’m trying to create some extra behaviors in some native Android components.

For that I am creating a class above the Android component and rewriting some situations I intend to have a different behavior, and I came across a situation I need in my custom method, call a method of class inherited (in this case the Android component), but the method is not accessible to my class, since he is international and not protected, and my class is in another package.

Questions?

• Although I know which attributes and methods internal are only accessible for members of the same package Java, I wonder if there are any how to access these methods from a class of a another package?
• And optionally, if there is any other way to overwrite Android native components, who avoid this kind of problem?

Example of what I’m trying to do:

public class MeuAbsListView extends AdapterView<ListAdapter>{

    public MeuAbsListView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public void meuMetodoDisparadoPeloMeuEvento(){
        // faz seu comportamento custumizado ... 

        // e tem esse metodo 'rememberSyncState' do 'AdapterView' que preciso chamar
        // só que ele é internal e não tenho acesso a ele, 
        // já no AbsListView nativo é possivel pois ele é do mesmo package do AdapterView
        rememberSyncState();
    }   
}

In the code Android Adapterview source the method is declared as:

void rememberSyncState() {
    // codigo do rememberSyncState ...
}

Answer 1

Two ways to achieve this through emergency technical adaptations (a.k.a Gambiarra).

Works in java but not on android

1.Create a third class heiress in the same restrictive class package

public class ClasseRestritiva
{
   protected void foo(){}
}

and

public MinhaClasseNaoRestritiva extends ClasseRestritiva
{

     public void chamaFoo()
     {
           foo();
     }

}

2. Reflections

There is a good example in that question SOEN. In addition I recommend that you see the official documentation

Solution with Reflection

Method rememberSyncState = AdapterView.class.getDeclaredMethod("rememberSyncState");
// Set accessible provide a way to access private methods too
rememberSyncState.setAccessible(true);
// this é instancia da class que herda de AdapterView
rememberSyncState.invoke(this);