ListView的item的onTouch()返回true，在ListView的onTouch()还能接收到触摸事件？

Question

我的想法是子view（就是ListView的item）中onTouch()返回true，那么ListView就应该接收不到MotionEvent，也就不能滚动了，而事实并非如此，不知道原因。

public class MainActivity extends ActionBarActivity {
private ListView mListView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mListView = (ListView) findViewById(R.id.listView1);
mListView.setAdapter(new MyListAdapter());
mListView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
Log.i("test", "onTouch");
return false;
}
});
}

private class MyListAdapter extends BaseAdapter {
    @Override
    public int getCount() {
        return 20;
    }
    @Override
    public Object getItem(int position) {
        return null;
    }
    @Override
    public long getItemId(int position) {
        return 0;
    }
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if(convertView == null) {
            //R.layout.item_view布局文件中就只有一个LinearLayout,高60dp
            convertView = getLayoutInflater().inflate(R.layout.item_view, parent, false);
            convertView.setOnTouchListener(new View.OnTouchListener() {
                @Override
                public boolean onTouch(View v, MotionEvent event) {
                    // 返回为 true
                    return true;
                }
            });
        }
        return convertView;
    }
}

}