How to remove background colour when long pressed on a row for second time in custom GridView ? (Android)

Question

I have a custom GridView with an ImageView and TextView in it. I want to colour a particular row when long press on it and to remove the background colour when long press the next time. Previously I asked a question of this type- How to unselect an item in gridview on second click in android?, so I referred it. But I can't apply that solution in this case-

gv.setOnItemLongClickListener(new OnItemLongClickListener() {

        @SuppressLint("NewApi")
        @Override
        public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                int arg2, long arg3) {
            Toast.makeText(getBaseContext(), "Long Pressed",
                    Toast.LENGTH_LONG).show();

            arg1.setBackgroundColor(Color.rgb(128, 128, 128));
            longPressed();
            return true;
        }
});

How this code should be edited to give background colour and transparent colour on alternative long clicks ?

Answer 1

I would do the following:

1.- Add a var to keep track which background colour is going to be set next. For example a boolean could do the job:

boolean backgroundColorTransparent = false;

Then use it in your code to trigger the corresponding code and make sure you update the var for next long press click.

gv.setOnItemLongClickListener(new OnItemLongClickListener() {

    @SuppressLint("NewApi")
    @Override
    public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
            int arg2, long arg3) {
        Toast.makeText(getBaseContext(), "Long Pressed",
                Toast.LENGTH_LONG).show();

        if(backgroundColorTransparent){

        arg1.setBackgroundColor(Color.TRANSPARENT);
        longPressed();
        backgroundColorTransparent = false;

        }else{

        arg1.setBackgroundColor(Color.rgb(128, 128, 128));
        longPressed();
        backgroundColorTransparent = true;

    }
    return true;

});