listView布局中按钮点击事件放到activity或者fragment中响应

public class ContentAdapter extends BaseAdapter implements View.OnClickListener {
    private static final String TAG = "ContentAdapter";
    private List<String> mContentList;
    private LayoutInflater mInflater;
    private Callback mCallback;

    /**
     *  响应按钮点击事件,调用子定义接口，并传入View
     */
    @Override
    public void onClick(View v) {
        mCallback.click(v);
    }

    /**
     * 自定义接口，用于回调按钮点击事件到Activity
     */
    public interface Callback {
        public void click(View v);
    }

    public ContentAdapter(Context context, List<String> contentList, Callback callback) {
        mContentList = contentList;
        mInflater = LayoutInflater.from(context);
        mCallback = callback;
    }

    @Override
    public int getCount() {
        Log.i(TAG,"getCount");
        return mContentList.size();
    }

    @Override
    public Object getItem(int position) {
        Log.i(TAG, "getItem");
        return mContentList.get(position);
    }

    @Override
    public long getItemId(int position) {
        Log.i(TAG, "getItemId");
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        Log.i(TAG, "getView");
        ViewHolder holder;
        if(convertView == null){
            convertView = mInflater.inflate(R.layout.item_list,parent,false );
            holder = new ViewHolder();
            holder.textView = (TextView) convertView.findViewById(R.id.text);
            holder.button = (Button) convertView.findViewById(R.id.button);
            convertView.setTag(holder);
        }else {
            holder = (ViewHolder) convertView.getTag();
        }
        holder.textView.setText(mContentList.get(position));
        holder.button.setOnClickListener(this);
        holder.button.setTag(position);
        return convertView;
    }

    public class ViewHolder{
        TextView textView;
        Button button;
    }
}

public class MainActivity extends AppCompatActivity implements ContentAdapter.Callback, AdapterView.OnItemClickListener {
    ListView mListView;

    private static final String[] CONTENTS = {"郑州", "上海", "广州", "深圳", "苏州",
            "南京", "武汉", "长沙", "杭州"};
    private List<String> contentList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mListView = (ListView) findViewById(R.id.listview);
        init();
    }

    private void init() {
        contentList = new ArrayList<String>();
        for (int i = 0; i < CONTENTS.length; i++) {
            contentList.add(CONTENTS[i]);
        }
        mListView.setAdapter(new ContentAdapter(this, contentList, this));
        mListView.setOnItemClickListener(this);
    }

    /**
     * 接口方法，响应listview按钮点击事件
     *
     * @param v
     */
    @Override
    public void click(View v) {
        Toast.makeText(this, "listview的内部button被点击了！，点击的位置是-->" +
                (Integer) v.getTag() + ",内容是-->" +
                contentList.get((Integer) v.getTag()), Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Toast.makeText(this, "list的item被点击了，点击的位置是-->" + position, Toast.LENGTH_SHORT).show();
    }
}