Question

我有listView，其中包含从自定义数组适配器填充的多行数据。在该行中，我隐藏了一些在单击该行时可见的文本视图。在它们可见之后，我想再次单击该行以重新隐藏标签。我得到了第一件工作，但之后onItemClick似乎没有开火。其中一个textViews也有可点击的URL，这些似乎是＆＃34;禁用＆＃34;也。它们显示为突出显示的网址，但我无法点击它们。

我应该使用listview吗？有没有办法重置行，以便可以再次与之交互？

修改

这是我的一些代码：

的活动：

public class SeasonsActivity extends AppCompatActivity {
private String locationShortName = "";
private ArrayList<Object> seasons;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_seasons);
    ActionBar ab = getSupportActionBar();

    ab.setDisplayHomeAsUpEnabled(true);

    AdView mAdView = (AdView) findViewById(R.id.adView);
    AdRequest adRequest = new AdRequest.Builder().addTestDevice(AdRequest.DEVICE_ID_EMULATOR).build();
    mAdView.loadAd(adRequest);

    seasons = LocationsActivity.seasons;
    locationShortName = getIntent().getStringExtra("locationShortName");

    if(locationShortName.length() > 0)
        ab.setTitle(locationShortName);

    final SeasonAdapter adapter = new SeasonAdapter(getBaseContext(),seasons);

    final ListView listView = (ListView)findViewById(R.id.list_season);
    listView.setAdapter(adapter);
    adapter.notifyDataSetChanged();

    listView.setOnItemClickListener(new android.widget.AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Object item = adapter.getItem(position);
            if (item instanceof Season) {
                Season s = (Season)item;
                adapter.selectRow(s.getId());
                adapter.notifyDataSetChanged();
            }
        }
    });

}

}

和我的适配器类：

class SeasonAdapter extends BaseAdapter {

private ArrayList<String> selectedRowGuids = new ArrayList<String>();

private static final int TYPE_ITEM = 0;
private static final int TYPE_SEPARATOR = 1;

private ArrayList<Object> mData = new ArrayList<Object>();

private LayoutInflater mInflater;

public SeasonAdapter(Context context, ArrayList<Object> seasonsArray) {
    this.mData = seasonsArray;
    this.mInflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}

public void addItem(final Object item) {
    mData.add(item);
    notifyDataSetChanged();
}

public void selectRow(String guid)
{
    if(selectedRowGuids.contains(guid))
    {
        selectedRowGuids.remove(guid);
    }
    else {
        selectedRowGuids.add(guid);
    }
}

@Override
public int getItemViewType(int position) {
    if (getItem(position) instanceof Season) {
        return TYPE_ITEM;
    }

    return TYPE_SEPARATOR;
}

@Override
public int getViewTypeCount() {
    return 2;
}

@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;
}

public View getView(int position, View convertView, ViewGroup parent) {
    int rowType = getItemViewType(position);

    if (convertView == null) {
        switch (rowType) {
            case TYPE_ITEM:
                convertView = mInflater.inflate(R.layout.activity_season_list_row, null);
                break;
            case TYPE_SEPARATOR:
                convertView = mInflater.inflate(R.layout.season_header_row, null);
                break;
        }
    }

    switch (rowType)
    {
        case TYPE_ITEM:
            Season season = (Season)getItem(position);
            convertView = getSeasonView(convertView, season, position);
            break;
        case TYPE_SEPARATOR:
            String header = (String)getItem(position);
            convertView = getSeasonHeaderView(convertView,header);
            break;
    }

    return convertView;
}


public View getSeasonView(View rowView, Season currentSeason,Integer position) {
    if (currentSeason != null) {
        SeasonView view = new SeasonView();

        view.txtTitle = (TextView) rowView.findViewById(R.id.season_title);
        view.txtDetails = (TextView) rowView.findViewById(R.id.season_details);
        view.txtStartDate = (TextView) rowView.findViewById(R.id.season_startdate);
        view.txtEndDate = (TextView) rowView.findViewById(R.id.season_enddate);

        view.txtTitle.setText(currentSeason.getTitle());
        view.txtDetails.setText(currentSeason.getDetails());

        SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy");

        view.txtStartDate.setText(sdf.format(currentSeason.getStartDate()));
        view.txtEndDate.setText(sdf.format(currentSeason.getEndDate()));

        if(selectedRowGuids.contains(currentSeason.getId()))
        {
            view.txtDetails.setVisibility(View.VISIBLE);
            rowView.findViewById(R.id.lblDetail).setVisibility(View.VISIBLE);
            rowView.setSelected(true);
        }
        else
        {
            view.txtDetails.setVisibility(View.GONE);
            rowView.findViewById(R.id.lblDetail).setVisibility(View.GONE);
        }

        rowView.setTag(view);
    }

    return rowView;
}

public View getSeasonHeaderView(View rowView,String title) {
    SeasonHeaderView view = new SeasonHeaderView();
    view.txtTitle = (TextView) rowView.findViewById(R.id.header_title);

    rowView.setTag(view);

    if (title != null) {
        view.txtTitle.setText(title);
    }
    return rowView;
}

public class SeasonHeaderView {
    public TextView txtTitle;
}

public class SeasonView {
    public TextView txtTitle;
    public TextView txtDetails;
    public TextView txtStartDate;
    public TextView txtEndDate;
}

}

Answer 1

如果要隐藏/显示项目，请将适配器中的clicklistener添加到要处理可见性的控件。然后在监听器中，您可以检查当前状态并执行相反的操作。

btn.setOnClickListener(new OnClickListener() { //btn by which you want to handle event

	@Override
	public void onClick(View v) {
		// TODO Auto-generated method stub
		if(tv.getVisibility()==View.VISIBLE){ //tv you want to hide/show
          tv.setVisibility(View.GONE);
        }else{
          tv.setVisibility(View.VISIBLE);
        }
	}
});

您可以使用该布局的任何控件而不是按钮，也可以使用整个布局。

在onItemClick之后禁用Android ListView行交互？

1 个答案: