小编gul*_*yan的帖子

我正试图在网格视图中显示一些图像.我的代码适用于Android 2.2和2.3,但不适用于2.1

在android 2.1中,网格总是空的/不可见的.

我用于网格视图的代码是这样的:

gridview = (GridView)findViewById(R.id.level_select);
gridview.setAdapter(new LevelImagesAdapter(this, levelsCount,
            maxLevel, listener));
gridview.invalidate();

LevelImagesAdapter是:

public class LevelImagesAdapter extends BaseAdapter {

    private View.OnClickListener listener;
    private Context mContext;
    private int count;
    private int maxLevel;

    public LevelImagesAdapter(Context c, int maxLevel, int count, View.OnClickListener listener) {
        this.mContext = c;
        this.listener = listener;
        this.count = count;
        this.maxLevel = maxLevel;
    }

    @Override
    public int getCount() {
        return count;
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return …