My GridView is created in my onCreate here:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(new ImageAdapter(this));
...
My ImageAdapter class contains an int[]"images" of R.drawable. references to .png files. I have an onItemClickListener further down in my onCreate that will, depending on where and when my gridview is touched, will update the "images" array. It looks like this, with a lot of extraneous code stripped out:
...
gridview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
while (count <= 6) {
...
if (count == 2 && verifyEmpty == false
&& choosePiece == true && chooseEmpty == true) {
verifyEmpty = gc.checkEmptyChoice(position);
if (verifyEmpty == true) {
gc.moveToEmpty(position, gameBoardModel,
(ImageView) v, selectedLocation);
count++;
// UPDATE THE GRIDVIEW SOMEHOW HERE.
}
break;
}
...
I want to update my gridview right after the count++ inside the nested if. The method right above it, gc.moveToEmpty(...) will make changes to the images array and I want those changes reflected in the gridview.
I have attempted using notifyDataSetChanged() and invalidateViews but cannot make either of them work from inside my onItemClickListener.
-------------------SOLUTION--------------FROM ANSWER BELOW-----------------
Had to add a name to the ImageAdapter:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final ImageAdapter iA = new ImageAdapter(this);
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(iA);
...
needed to be final so the the onClick... could use it. Then I could reference it like so:
if (verifyEmpty == true) {
gc.moveToEmpty(position, gameBoardModel,
(ImageView) v, selectedLocation);
count++;
// UPDATE THE GRIDVIEW SOMEHOW HERE.
// LIKE THIS!
iA.notifyDataSetChanged();
}
