android - 弹出窗口中的ListView

Question

我正在制作一个应用程序并为 ListView 使用自定义适配器。它正在 Activity 中工作

public class Adapter extends ArrayAdapter {
    Context mContext;
    int resourceID;
    ArrayList<String> names;
    public Adapter(Context context, int resource, ArrayList<String> objects) {
        super(context, resource, objects);
        this.mContext = context;
        this.resourceID=resource;
        this.names= objects;
    }

    @Override
    public String getItem(int position) {
        return names.get(position);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View row = convertView;
        LayoutInflater inflater = LayoutInflater.from(mContext);
        row = inflater.inflate(resourceID, parent, false);

        TextView text = (TextView) row.findViewById(R.id.text);

        text.setText(names.get(position));
        return row;
    }

}

我使用此代码使它们出现在 Activity 中

    myNames= (ListView) findViewById(R.id.List);
    adapter = new Adapter(this,R.layout.names_view, Current.Names);
    myNames.setAdapter(adapter);

现在我想点击一个按钮使相同的列表出现在弹出窗口中，有什么帮助吗？

Answer 1

您可以执行以下操作:

1) 在点击按钮时创建自定义对话框:

Button clickButton = (Button) findViewById(R.id.clickButton);
clickButton.setOnClickListener( new OnClickListener() {

        @Override
        public void onClick(View v) {

            final Dialog dialog = new Dialog(YourActivity.this);
            dialog.setContentView(R.layout.custom_dialog);
            dialog.setTitle("Title...");
            myNames= (ListView) dialog.findViewById(R.id.List);
            adapter = new Adapter(YourActivity.this,R.layout.names_view, Current.Names);
            myNames.setAdapter(adapter);
            dialog.show();

        }
    });

2)在对话框布局(custom_dialog.xml)中添加 ListView :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:orientation="vertical">

   <ListView
      android:id="@+id/List"
      android:layout_width="match_parent"
      android:layout_height="wrap_content" >
   </ListView>

</LinearLayout>