我怎么设置在ListView到一个ArrayAdapter，Android的 [英] how do I set the listView to the ArrayAdapter, Android

问题描述

我怎么设置这个arrayAdapter我的ListView所以它填充我的屏幕上ListView的？

how do I set this arrayAdapter to my listView so it populates the listView on my screen?

例如：

   listview.setAdapter(MyAdapter);

这里是code为我MainActivity和ListAdapter：

here is the code for my MainActivity and ListAdapter:

  public class MainActivity extends Activity {

CheckBoxInfo cbr;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    cbr = new CheckBoxInfo();
    cbr.checkBoxName = "dfdjklfjdkljf";
    cbr.checkBoxState = true;


    ListView listview = (ListView) findViewById(R.id.listView);

}

public class MyAdapter extends ArrayAdapter<CheckBoxInfo> {

    private List<CheckBoxInfo> checkBoxList;
    private Context context


    public MyAdapter(List<CheckBoxInfo> infoList, Context context) {
        super(context, R.layout.row_layout, infoList);
        this.checkBoxList = infoList;
        this.context = context;

        for(int i = 0; i <=12; i++){
            checkBoxList.add(cbr);
        }

    }

    public View getView(int position, View convertView, ViewGroup parent) {

        // First let's verify the convertView is not null
        if (convertView == null) {
            // This a new view we inflate the new layout
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.row_layout, parent, false);
        }
            // Now we can fill the layout with the right values
            TextView tv = (TextView) convertView.findViewById(R.id.textView1);
            CheckBox cb = (CheckBox) convertView.findViewById(R.id.checkBox1);
            CheckBoxInfo cbi = checkBoxList.get(position);

            tv.setText(cbi.checkBoxName);

        return convertView;
    }

}  // end MyAdapter

}

推荐答案

不要在类文件下面要设置为ListView适配器：

Do the following in the class file where you want to set the adapter for the ListView :

listview = (ListView) findViewById(R.id.myListView);
myAdapter = new MyAdapter(this, R.layout.row_layout, listInfo);
listview.setAdapter(myAdapter);

我会建议您使用视图架和convertview模式创建列表视图，因为它会更有效率。的这里是它如何工作的一个很好的解释。如果你想引用一个code样品我有它在 Github上。

I would recommend that you use the View holder and convertview pattern to create the listView as it will be more efficient.Here is a good explanation of how it works. If you want to refer to a code sample I have it on Github .

希望这有助于。

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