ListView中出現多種佈局時的處理

ListView中出現每行佈局都不同的情形時,要在Adapter中分別處理。如奇數行展示的是圖在左字在右,偶數行展示的是字在左圖在右,則處理如下:

public class MyAdapter extends BaseAdapter {
    private static final String TAG = "MyAdapter";

    private Context mContext;
    private List<String> mData;
    public MyAdapter(Context context, List<String> data){
        mContext = context;
        mData = data;
    }
    @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) {
        if (0 == position % 2){
            MyViewHolder holder = null;
            if (null == convertView) {
                holder = new MyViewHolder();
                convertView = LayoutInflater.from(mContext).inflate(R.layout.left, null);
                holder.name = convertView.findViewById(R.id.name);
                convertView.setTag(holder);
            } else {
                holder = (MyViewHolder) convertView.getTag();
            }
            holder.name.setText("111");
        } else {
            MyViewHolder holder = null;
            if (null == convertView) {
                holder = new MyViewHolder();
                convertView = LayoutInflater.from(mContext).inflate(R.layout.right, null);
                holder.name = convertView.findViewById(R.id.name);
                convertView.setTag(holder);
            } else {
                holder = (MyViewHolder) convertView.getTag();
            }
            holder.name.setText("222");
        }
        return convertView;
    }

    static class MyViewHolder {
        TextView name;
    }

 

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