Question

我正在尝试创建一个列表视图，您可以在其中单击列表中的各个项目以显示删除对话框。但出于某种原因，当我点击列表时，我没有得到听众的任何反应。这是主要活动的代码

 public class LifeRpgMain extends Activity {
ArrayList<String> List_Data=new ArrayList<String>();
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_life_rpg_main);
    if(savedInstanceState!=null){
        System.out.println("this shouldnt happen");
        ArrayList<String> inp = (ArrayList<String>) savedInstanceState.get("positive");
        System.out.println("game made");
        List_Data.addAll(inp);


    }
    else{
        List_Data.add("run a mile");
        List_Data.add("do homework");
        List_Data.add("make this stupid app");
        List_Data.add("make money");
    }
    ListAdapter adapter = new ListAdapter(this, 
            R.layout.list_item, List_Data);


    ListView gameList = (ListView) findViewById(R.id.main_list_view);
    gameList.setAdapter(adapter);
    //this should allow us to choose individual list items for deletion
    gameList.setChoiceMode(1);
    gameList.setOnItemClickListener(new OnItemClickListener(){

        @Override
        public void onItemClick(AdapterView<?> paren, View view,
                int position, long id) {
            // TODO Auto-generated method stub
            FragmentManager fm = getFragmentManager();
            DeleteButtonFragment del = new DeleteButtonFragment(position, List_Data);
            del.show(fm, "delete button");
        }


    });




}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.life_rpg_main, menu);
    return true;
}

@Override
public void onSaveInstanceState(Bundle savedInstanceState){
    super.onSaveInstanceState(savedInstanceState);
    savedInstanceState.putStringArrayList("positive", List_Data);
}
public void listAdd(View v){
    FragmentManager fm = getFragmentManager();
    AddButtonFragment add = new AddButtonFragment(findViewById(R.id.activityname),List_Data);
    add.show(fm, "teampicker");
}



 }

以下是listadapter的代码

public class ListAdapter extends ArrayAdapter<String>{
Context context; 
int layoutResourceId;    
ArrayList<String> data = null;

public ListAdapter(Context context, int layoutResourceId, ArrayList<String> List_Data) {
    super(context, layoutResourceId, List_Data);
    this.layoutResourceId = layoutResourceId;
    this.context = context;
    this.data = List_Data;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    ItemHolder holder = null;
    if(row == null)
    {
        LayoutInflater inflater = ((Activity)context).getLayoutInflater();
        row = inflater.inflate(layoutResourceId, parent, false);
        holder = new ItemHolder();
        holder.name = (TextView)row.findViewById(R.id.ItemName);
        row.setTag(holder);
    }
    else
    {
        holder = (ItemHolder)row.getTag();
    }

    String s = data.get(position);
    holder.name.setText(s);
    return row;

}

static class ItemHolder{

    TextView name;

}
}

Answer 1

试试此代码

@Override
    public void onItemClick(AdapterView<?> paren, View view,
            int position, long id) {
        // TODO Auto-generated method stub
        Log.i("Value", List_Data.get(position));

    }

Answer 2

删除此内部onitemclicklistener

gameList.setOnItemClickListener(new OnItemClickListener(){   

 @Override
 public void onItemClick(AdapterView<?> paren, View view,
      int position, long id) {
        Log.i("Value", List_Data.get(position));

    }
});

尝试创建onItemClickListener

2 个答案: