Change GridView Item BackGround when is Unchecked

Question

I have a CustomAdapter that works fine. The Adapter insert data into my Android GridView. Now i want when an item is checked the BackGround of the Item change to white, and when the other Item is selected, the previous selected Item color chage to GridView background, i mean just with SingleChoiceMode. I have wrote this :

 gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { if(gridView.isItemChecked(position)) { view = gridView.getChildAt(position); view.setBackgroundColor(Color.WHITE); }else { view = gridView.getChildAt(position); view.setBackgroundColor(124333); //the color code is the background color of GridView } } });

But just the first If works, it means when i select a row, the color change to white, but when i select the other row, the previous is still white and the new selected is white too. What should i write in else statement?

Linh · Accepted Answer · 2016-03-15 08:44:29Z

You need to call adapter.notifyDataSetChanged(); every time you pressed on any item of your GridView for refresh GridView

 @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { adapter.notifyDataSetChanged(); // call it here if(gridView.isItemChecked(position)) { view = gridView.getChildAt(position); view.setBackgroundColor(Color.WHITE); }else { view = gridView.getChildAt(position); view.setBackgroundColor(124333); //the color code is the background color of GridView } }

If you just want to change the color of selected item in GridView, you can use android:listSelector for your GridView xml

<GridView ... android:listSelector="#ff0000" > </GridView>

Collectives™ on Stack Overflow

Change GridView Item BackGround when is Unchecked

1 Answer 1

1 Comment

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Related