How To Set Different Actions To Dynamiclly Created Button On Android (specifically - Auto Scroll To A Textview Using A Dynamic Button)

i created a layout containing multiple text views. i saved the text view's ids in an ArrayList which is a class variable called _resultId. now i want to create buttons which suppos

Solution 1:

after learning more on Runnable interface i Found an answer so for those who will struggle with something similar: you need to create a new class altogether that implements both runnable and the OnClickListener.

this class will contain extra data and a constructor to match your needs. when you set the onClick method of the button you create a new object of that class. for instance in my case the new method looked like:

publicclassButtonHandlerimplementsOnClickListener,Runnable 
{
privateString _data;//data to be passed for the buttonprivateArrayList<Integer> _resultId;//the id's of the text viewsprivateActivity _activity;

publicButtonHandler(String data,ArrayList<Integer> resultId,Activity activity)
{
    _data=data;
    _resultId=resultId;
    _activity=activity;
}

@Overridepublicvoidrun() 
{
     View currentView=_activity.findViewById(_resultId.get(Integer.valueOf(_data)));
     ScrollView scrollView=(ScrollView) _activity.findViewById(R.id.resultScroll);
     scrollView.scrollTo(0, currentView.getTop());

}

@OverridepublicvoidonClick(View v) 
{
    newHandler().post(this);

}

}

now to call it from the main activity i use:

privatevoidaddNavigationView(ViewGroup navigationLayout, ArrayList<Perek> mishnayot) 
{
    for (int i=0;i<mishnayot.size();i++)
    {
        _counter=i;
        String currentOt=mishnayot.get(i).getOt();
        Button button = new Button(getBaseContext());
        button.setText(currentOt);
        if (_resultId==null)
            thrownew IllegalAccessError("missing result id link cannot be created");
        button.setOnClickListener(new ButtonHandler(i+"",_resultId,this));

        navigationLayout.addView(button);//add the button to panel
    }
    navigationLayout.setVisibility(View.VISIBLE);
}