添加 GridView 作为 ListView 的页脚答案

【问题标题】：Add GridView as the footer of ListView添加 GridView 作为 ListView 的页脚
【发布时间】：2015-03-04 00:21:00
【问题描述】：

我在一个 android 应用程序中工作，我有一个包含 8 个图像的 GridView。我想将 GridView 添加为 ListView 的页脚。添加后，添加的页脚即GridView 仅显示 ListView 中的前两个图像，其余图像未显示在 ListView 中。我认为只显示了 GridView 的第一行。

请查看我的xml和代码

    <GridView
            android:layout_below="@+id/homescreen_top_RelativeLayout"
            android:id="@+id/homescreen_gridview"
            android:layout_margin="10dp"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:columnWidth="@dimen/gridViewcolumnWidth"
            android:verticalSpacing="10dp"
            android:horizontalSpacing="10dp"
            android:numColumns="auto_fit"
            android:layout_above="@+id/homescreen_logout"
            android:stretchMode="columnWidth" />


public class ImageAdaptor extends BaseAdapter {
    private Context mContext;

    // Constructor
    public ImageAdaptor(Context context) {

        mContext = context;
    }

    public int getCount() {
        return mImages.length;
    }

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

    public long getItemId(int position) {
        return 0;
    }

    // create a new ImageView for each item referenced by the Adapter
    public View getView(int position, View convertView, ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) mContext
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        View gridView;

        if (convertView == null) {



            // get layout from mobile.xml
            gridView = inflater.inflate(R.layout.subrow_gridview, null);

            // set image based on selected text
            ImageView imageView = (ImageView) gridView
                    .findViewById(R.id.grid_item_image);

            TextView textView = (TextView) gridView
                    .findViewById(R.id.grid_item_TextView);

            imageView.setImageResource(mImages[position]);
            gridView.setTag(position);
            textView.setText(mImagesValues[position]);

        } else {
            gridView = (View) convertView;
        }

        return gridView;
    }

    // Keep all Images in array
    public Integer[] mImages = { R.drawable.care, R.drawable.bus,
            R.drawable.monthly_summary,R.drawable.care,R.drawable.care,R.drawable.care,R.drawable.care,R.drawable.care };

    // Keep all Images in array
    public String[] mImagesValues = { "Service " + "\n" + "Entry",
            "Bus" + "\n" + "Attendance", "Monthly" + "\n" + "Summary","Monthly" + "\n" + "Summary","Monthly" + "\n" + "Summary","Monthly" + "\n" + "Summary","Monthly" + "\n" + "Summary" };
}

【问题讨论】：

为什么要做gridView = new View(mContext); ?
@2Dee。对不起。那是一个错误..我已经更新了我的代码。
@Vojtaaa9。不。。我的要求是在 gridview 中显示八个图像，并将该 gridview 添加为 listview 的页脚。

标签： android android-listview android-gridview

【解决方案1】：

希望这是gridview的适配器，修改你的getView()如下。

如下添加一个 ViewHolder 类。

static class ViewHolder{
    ImageView imageView;
    TextView textView;
}



public View getView(int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = (LayoutInflater) mContext
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final ViewHolder viewHolder;
    if (convertView == null) {

        // get layout from mobile.xml
        convertView= inflater.inflate(R.layout.subrow_gridview, null);

        // set image based on selected text
        viewHolder.imageView = (ImageView) gridView
                .findViewById(R.id.grid_item_image);

        viewHolder.textView = (TextView) gridView
                .findViewById(R.id.grid_item_TextView);


        convertView.setTag(viewHolder);

    } else {
        viewHolder=(ViewHolder)convertView.getTag();
    }
    viewHolder.imageView.setImageResource(mImages[position]);
    viewHolder.textView.setText(mImagesValues[position]);
    return convertView;;
}

这是完全未经测试的代码。

【讨论】：