views:

48

answers:

1

I have a ListView on my ListActivity and I'd like the rows of the ListView to be 1 of 3 different layouts. The first item in my list is always going to use layout A, the second item in my list is always going to use layout B, and all subsequent items are going to use layout C.

Here is my getView function:

@Override
public View getView(int position, View convertView, ViewGroup parent) { 
    // get the View for this list item
    View v = convertView;
    if (v == null) {
        LayoutInflater vi = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        switch (position) {
            case 0:
                v = vi.inflate(R.layout.layout_A, parent, false);
                break;
            case 1:
                v = vi.inflate(R.layout.layout_B, parent, false);
                break;
            default:
                v = vi.inflate(R.layout.layout_C, parent, false);
                break;
        }
    }   
    switch (position) {
        case 0:
            TextView txtLabel1 = (TextView)findViewById(R.id.label1);
            TextView txtLabel2 = (TextView)findViewById(R.id.label2);
            if (txtLabel1 != null) {
                txtLabel1.setText("sdfasd");
            }
            if (txtLabel2 != null) {
                txtLabel2.setText("dasgfadsasd");
            }
            break;
        default:
            break;
    }
    // return the created view
    return v;
}

R.id.label1 and R.id.label2 are TextViews on R.layout.layout_A. However, txtLabel1 and txtLabel2 are null after trying to set them. Why?

I stepped through this code in the debugger and it inflated the correct layout (R.layout.layout_A) and fell into the correct case below to set the R.id.label1 and R.id.label2 text.

Also, if there is a better way to do this, please let me know.

+1  A: 

Check this tutorial. They explain something similar with what you are trying to achieve.

Macarse
Thanks for your response. That's a much cleaner way to do it, though it's ultimately no different than what I'm doing. I've just implemented this and I have the same result.
Andrew
I've found my problem. I needed to use v.findViewById per my example in the OP
Andrew