Extending AdapterView
- by Ander Webbs
Hi, i'm trying to make (for learning purposes) my own implementation of a simple AdapterView where items comes from an basic Adapter (ImageAdapter from sdk samples).
Actual code is like this:
public class MyAdapterView extends AdapterView<ImageAdapter> implements AdapterView.OnItemClickListener{
private ImageAdapter mAdapter;
public MyAdapterView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initThings();
}
private void initThings(){
setOnItemClickListener(this);
}
@Override
public ImageAdapter getAdapter() {
// TODO Auto-generated method stub
return mAdapter;
}
@Override
public void setAdapter(ImageAdapter adapter) {
// TODO Auto-generated method stub
mAdapter=adapter;
requestLayout();
}
View obtainView(int position) {
View child = mAdapter.getView(position, null, this);
return child;
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
super.onLayout(changed, l, t, r, b);
for(int i=0;i<mAdapter.getCount();i++){
View child = obtainView(i);
child.layout(10, 70*i, 70, 70);
addViewInLayout(child, i, null, true);
}
this.invalidate();
}
@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Log.d("MYEXAMPLES","Clicked an item!");
}
}
This isn't a coding masterpiece, it just displays a pseudo-listview with pictures. I know i could've used ListView, GridView, Spinner, etc. but i'm relative new to android and i'm trying to figure out some things on it.
Well, the question here is:
Why is my onItemClick not firing?
Using the same ImageAdapter with a GridView, everything works ok, but when i use with above class, i get nothing.
Inside AdapterView.java there is code for those click, longclick, etc events... so why can't i just fire them?
Maybe i'm misunderstanding basic things on how AdapterView works? Should I extend other base classes instead? And why?
Hoping to find more experienced guidance on here, thanks in advance.
