安卓：顯示信息在兩列，而不是一個BaseAdapter

Question

我在Android應用程序中，我有注意對象的java.util.List的，我正在一個頁面上通過延伸BaseAdapter顯示工作。我在屏幕上顯示了兩個並排顯示的大小。

我不知道如何使用BaseAdapter來完成這個任務。你能幫忙的話，我會很高興。非常感謝。 :-) 正如你可以從下面的圖像看，我有空間來顯示一個多列，可點擊（這是他們的權利，讓他們的ID）：

GroupSectionActivity：//注意檢索：

public class GroupSectionActivity extends DrawerLoader { 

@Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.sectionlayout); 
final ArrayList<HashMap<String, String>> restSectionArrayList = new ArrayList<HashMap<String, String>>(); 
     for (RestNote restNote : restNoteListFinal) { 
      HashMap<String, String> sectionDisplay = new HashMap<>(); 
      sectionDisplay.put(noteId, String.valueOf(restNote.getMnoticesid())); 
      sectionDisplay.put(noteTag, restNote.getMnotetag()); 
      sectionDisplay.put(noteText,restNote.getMnotetext()); 
      sectionDisplay.put(noteColor,restNote.getMnotecolor()); 
      restSectionArrayList.add(sectionDisplay); 
     } 

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

     SectionLazyAdapter sectionLazyAdapter = new SectionLazyAdapter(this, restSectionArrayList); 

     listView.setAdapter(sectionLazyAdapter); 
} 

SectionLazyAdapter：

public class SectionLazyAdapter extends BaseAdapter{ 

    private Activity activity; 
    private ArrayList<HashMap<String, String>> data; 
    private static LayoutInflater inflater=null; 

    public SectionLazyAdapter(Activity a, ArrayList<HashMap<String, String>> d) { 
     activity = a; 
     data=d; 
     inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 

    public int getCount() { 
     return data.size(); 
    } 

    public Object getItem(int position) { 
     return position; 
    } 

    public long getItemId(int position) { 
     return position; 
    } 

    public View getView(int position, View convertView, ViewGroup parent) { 
     View vi=convertView; 
     if(convertView==null) 
      vi = inflater.inflate(R.layout.activity_group_section, null); 

     TextView noteTag = (TextView)vi.findViewById(R.id.noteTag); 
     TextView noteText = (TextView) vi.findViewById(R.id.noteText); 
     ImageView noteImage = (ImageView)vi.findViewById(R.id.noteImage); 
     HashMap<String, String> sectionList = new HashMap<>(); 
     sectionList = data.get(position); 
     noteTag.setText(sectionList.get(GroupSectionActivity.noteTag)); 
     noteText.setText(sectionList.get(GroupSectionActivity.noteText)); 
     String noteColorFromList = sectionList.get(GroupSectionActivity.noteColor); 
     if(noteColorFromList.equals("#1abc9c")){ 
      noteImage.setImageResource(R.drawable.notegreen); 
     } 
     if(noteColorFromList.equals("#3498db")){ 
      noteImage.setImageResource(R.drawable.noteblue); 
     } 
// And other if conditions 
return vi; 
    } 
} 

sectionLayout.xml：

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/drawer_layout" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent"> 

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:orientation="horizontal"> 

     <ListView 
      android:id="@+id/seclist" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_alignParentLeft="true" 
      android:layout_below="@+id/sectionAddButton" /> 

     <Button 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Add Section" 
      android:id="@+id/sectionAddButton" 
      android:layout_alignParentTop="true" 
      android:layout_alignParentLeft="true" 
      android:layout_alignParentStart="true" /> 

     <EditText 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:id="@+id/sectionNameTextField" 
      android:layout_above="@+id/seclist" 
      android:layout_toRightOf="@+id/sectionAddButton" 
      android:layout_alignParentRight="true" 
      android:layout_alignParentEnd="true" /> 

    </RelativeLayout> 

    <ListView 
     android:id="@+id/list_slidermenu" 
     android:layout_width="240dp" 
     android:layout_height="match_parent" 
     android:layout_gravity="start" 
     android:choiceMode="singleChoice" 
     android:dividerHeight="1dp" /> 
</android.support.v4.widget.DrawerLayout> 

activity_groupSection.xml：

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:orientation="horizontal" 
    android:padding="5dip" > 

    <FrameLayout 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:paddingLeft="15dp" 
     android:orientation="vertical"> 
     <ImageView 
      android:id="@+id/noteImage" 
      android:layout_width="140dp" 
      android:layout_height="200dp" 
      android:scaleType="fitXY" 
      android:padding="5dp"/> 

     <TextView 
      android:id="@+id/noteTag" 
      android:layout_width="90dp" 
      android:layout_height="match_parent" 
      android:visibility="visible" 
      android:gravity="center" 
      android:layout_gravity="center_horizontal|top" 
      android:maxLines="1" 
      android:ellipsize="end" 
      android:scrollHorizontally="true" 
      android:layout_marginTop="10dp" /> 

     <TextView 
      android:layout_width="97dp" 
      android:layout_height="160dp" 
      android:id="@+id/noteText" 
      android:layout_gravity="center_horizontal|bottom" 
      android:layout_marginBottom="10dp" 
      android:layout_marginTop="30dp" /> 
    </FrameLayout> 
</RelativeLayout> 

Answer 1

爲了實現兩列可以在xml文件中使用GridView，而不是ListView和設置的列數2。

是的，也在你的java文件中替換相同，並將adapter設置爲GridView，你就完成了。