android gridview项目动态背景颜色

public class CustomAdapter extends BaseAdapter {
    private Context mContext;
    private List<String> mData;
    private List<Integer> mColors;

    public CustomAdapter(Context context, List<String> data, List<Integer> colors) {
        mContext = context;
        mData = data;
        mColors = colors;
    }

    @Override
    public int getCount() {
        return mData.size();
    }

    @Override
    public Object getItem(int position) {
        return mData.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TextView textView;
        if (convertView == null) {
            textView = new TextView(mContext);
            textView.setLayoutParams(new GridView.LayoutParams(100, 100));
            textView.setPadding(8, 8, 8, 8);
        } else {
            textView = (TextView) convertView;
        }

        textView.setText(mData.get(position));
        textView.setBackgroundColor(mColors.get(position));

        return textView;
    }
}

public class MainActivity extends AppCompatActivity {
    private GridView mGridView;
    private List<String> mData;
    private List<Integer> mColors;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mGridView = findViewById(R.id.grid_view);
        mData = new ArrayList<>();
        mColors = new ArrayList<>();

        // 添加数据和对应的颜色
        mData.add("Item 1");
        mColors.add(Color.RED);
        mData.add("Item 2");
        mColors.add(Color.BLUE);
        // 添加更多数据...

        CustomAdapter adapter = new CustomAdapter(this, mData, mColors);
        mGridView.setAdapter(adapter);
    }
}