如何设置视图或活动来处理先前的列表活动？例如“查看完整详细信息页面”

Question

这是我的 ListActivity，单击列表后，它将启动一个新的 activity，其中显示每个景点的完整详细信息。我不知道如何实现完整的详细信息页面。你们能给我展示一些从之前的列表中检索数据的完整详细活动的代码吗？

public class AttractionsListActivity extends ListActivity {



    private static MyDB mDbHelper;
    String[] from = new String[] { Constants.TITLE_NAME , Constants.ADDRESS_NAME };
    int[] to = new int[] {R.id.place_title, R.id.place_address};
    private Cursor c;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);


        mDbHelper = new MyDB(this);
        mDbHelper.open();
        c = mDbHelper.getplaces();
setListAdapter(new SimpleCursorAdapter(this, 
                  R.layout.list_place, c, 
                  from, to));

        final ListView lv = getListView();

lv.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView parent, View view,int position, long id) {

                Intent newActivity = new Intent(view.getContext(), Place.class);     
                startActivity(newActivity);

            }
          });
    }

}

我不知道如何实现此活动来处理 AttractionslistActivity.Class 中的操作

public class Place extends Activity {
    private static final String CLASSTAG = Place.class.getSimpleName();

    private TextView title;
    private TextView detail;
    private TextView location;
    private TextView phone;
    private ImageView placeImage;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.v(Constants.TAG, " " + Place.CLASSTAG + " onCreate");

        this.setContentView(R.layout.detail_place);


        this.title = (TextView) findViewById(R.id.name_detail);
        //title.setText(cursor.getString(Constants.TITLE_NAME));
        this.detail = (TextView) findViewById(R.id.place_detail);
        this.location = (TextView) findViewById(R.id.location_detail);
        this.phone = (TextView) findViewById(R.id.phone_detail);
        this.placeImage = (ImageView) findViewById(R.id.place_image);
    }
}

Answer 1

1. 覆盖列表活动中的 onListItemClick(...)，使用光标获取所选项目的 id
2. 启动详细活动，通过 Intent extras 传递 id
3. 在详细活动中，恢复 id 并打开用于从数据库取回数据的游标。
4. 用数据填充您的视图

Answer 2

Android 记事本教程 包含一个具体的示例，如果我理解的话正确提问。

Answer 3

First of all sorry for the late answer,
in your adapter class you can use item click listener achieve this easily, please do the following steps for achieving this.


    lv.setOnItemClickListener(new OnItemClickListener() {
                public void onItemClick(
                      AdapterView parent, View view,int position, long id) {
    
                    Intent newActivity = new Intent(
                                         view.getContext(), Place.class);     
                    startActivity(newActivity);
    
              }
     });

for passing list item details into next screen you can use intent extras.before calling start activity u need pass the extras like below.

newActivity.putExtra("name", c.place);
newActivity.putExtra("description", c.placeDscription);
newActivity.putExtra("distance", c.distance);


after u need to call --->  startActivity(newActivity);

if you want pass string, Integer, float, boolean etc...types of data you can like above code.