我希望有人可以帮助我,我有一个网格布局,由8个项目的适配器填充.网格中有三列,这留下了两行,其中三列为完整列,另一行为两列,末尾为空白.我附上图片来详细说明我想要实现的目标.我希望能够拉伸最后一行行列以填充gridview的宽度.这是由适配器填充.

下面是应用程序的现状,我有8个单元格的内容,没有第九个单元格,以防与我的图像混淆.

这是我希望它的样子.

所以我想将两个单元拉伸到三列.

以下是我到目前为止实施的代码

public class channels_fragment extends Fragment {

private View view;

private GridView channelsGridView;

protected Handler handler;

//protected GridAdapter gridAdapter;

private Main_Activity main;

private final ChannelsModel model = new ChannelsModel();

static final String[] channelTitles = new String[]{"test1", "test2", "test3", "test4", "test5", "test6", "test7", "test8"};

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

main = (Main_Activity) this.getActivity();

view = inflater.inflate(R.layout.channels_fragment_layout, null);

channelsGridView = (GridView)view.findViewById(R.id.channelsGrid);

channelsGridView.setAdapter(new ImageAdapter(this.getActivity(), channelTitles));

channelsGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

@Override

public void onItemClick(AdapterView> parent, View view, int position, long id) {

}

});

return view;

}

public static int convertDpToPixels(float dp, Context context){

Resources resources = context.getResources();

return (int) TypedValue.applyDimension(

TypedValue.COMPLEX_UNIT_DIP,

dp,

resources.getDisplayMetrics()

);

}

class ImageAdapter extends BaseAdapter{

private Context context;

private final String[] channelTitles;

public ImageAdapter(Context context, String[] channelTitles){

this.context = context;

this.channelTitles = channelTitles;

}

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

LayoutInflater inflater = (LayoutInflater) context

.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

View gridView;

if (convertView == null) {

gridView = new View(context);

// get layout from mobile.xml

gridView = inflater.inflate(R.layout.grid_item_layout, null);

// set value into textview

TextView textView = (TextView) gridView

.findViewById(R.id.grid_item_text);

textView.setText(channelTitles[position]);

// set image based on selected text

ImageView imageView = (ImageView) gridView

.findViewById(R.id.grid_item_image);

ImageView iv = (ImageView) gridView.findViewById(R.id.ver_border_dark);

String channelTitle = channelTitles[position];

if (position == 6 ){

gridView.setBackgroundResource(R.drawable.background_bottom_dark);

textView.setTextColor(Color.WHITE);

}

if (position ==7)

{

gridView.setBackgroundResource(R.drawable.background_bottom_dark);

textView.setTextColor(Color.WHITE);

iv.setVisibility(View.VISIBLE);

iv.setImageResource(R.drawable.grid_line_ondark_vert);

}

if (channelTitle.equals("test1")) {

imageView.setImageResource(R.drawable.icon_events);

} else if (channelTitle.equals("test2?")) {

imageView.setImageResource(R.drawable.icon_whats_nearby);

} else if (channelTitle.equals("test3")) {

imageView.setImageResource(R.drawable.icon_top_tips);

} else if (channelTitle.equals("test4")) {

imageView.setImageResource(R.drawable.icon_plan_my_trip);

} else if (channelTitle.equals("test5")) {

imageView.setImageResource(R.drawable.icon_special_offers);

} else if (channelTitle.equals("test6")) {

imageView.setImageResource(R.drawable.icon_explore_more);

} else if (channelTitle.equals("test7")) {

imageView.setImageResource(R.drawable.icon_city_plus);

} else if (channelTitle.equals("test8")) {

imageView.setImageResource(R.drawable.icon_audio_guides);

}

} else {

gridView = (View) convertView;

}

return gridView;

}

@Override

public int getCount() {

return channelTitles.length;

}

@Override

public Object getItem(int position) {

return null;

}

@Override

public long getItemId(int position) {

return 0;

}

}

这是我的片段布局的代码,包括gridview

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id = "@+id/dub_photo"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@drawable/photo"/>

android:id="@+id/channelsGrid"

android:background="@drawable/light_background"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:columnWidth="100dp"

android:numColumns="auto_fit"

android:gravity="center"

android:stretchMode="columnWidth"

android:layout_below="@+id/dub_photo">

最后是我的网格项的布局

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id="@+id/gridItem"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerHorizontal="true"

android:padding="10dp">

android:id ="@+id/grid_item_image"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerHorizontal="true" />

android:textColor="#000000"

android:id = "@+id/grid_item_text"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:textSize="12dp"

android:layout_centerHorizontal="true"

android:layout_below="@+id/grid_item_image"

android:layout_marginTop="10dp" />

android:id="@+id/horizontal_border"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_below="@+id/gridItem">

android:id = "@+id/hor_border"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/grid_line_horizontal"/>

android:layout_width="wrap_content"

android:layout_alignStart="@id/horizontal_border"

android:layout_height="wrap_content"

android:layout_above="@+id/horizontal_border">

android:id = "@+id/ver_border"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/grid_line_vertical"/>

android:id = "@+id/ver_border_dark"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:background="@drawable/grid_line_ondark_vert"

android:visibility="gone"/>

如果有人能帮助我,我会非常感激.我已经研究了论坛,我遇到了使用gridlayout的建议,api 14及以上版本支持,但我正在开发api 9及以上版本.

谢谢！