Question

见下面的布局。我无法将页脚按钮放在GridView下方。任何帮助将不胜感激。

当Gridview填写屏幕时，不显示按钮。

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativeLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
 >

<GridView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/gridview"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:columnWidth="90dp"
    android:gravity="center"
    android:horizontalSpacing="10dp"
    android:numColumns="auto_fit"
    android:stretchMode="columnWidth"
    android:verticalSpacing="10dp" />

<Button
    android:id="@+id/button1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/gridview"
    android:text="Load More Images" />

 </RelativeLayout>

Answer 1

我一直在搜索GridView很长一段时间，我们addFooterView和addHeaderView就像ListView一样。

这是2年前的一篇文章。我是按照谷歌搜索结果中的链接来到这里的。我不知道天气这个问题是否已经解决。

如果没有，这是一个可能有用的库。 https://github.com/liaohuqiu/android-GridViewWithHeaderAndFooter

非常简单：

GridViewWithHeaderAndFooter gridView = (GridViewWithHeaderAndFooter) v.findViewById(R.id.ly_image_list_grid);

LayoutInflater layoutInflater = LayoutInflater.from(this);
View headerView = layoutInflater.inflate(R.layout.test_header_view, null);
View footerView = layoutInflater.inflate(R.layout.test_footer_view, null);
gridView.addHeaderView(headerView);
gridView.addFooterView(footerView);

这是一个屏幕快照：

Screen Shot

希望这会有所帮助。祝你好运！

Answer 2

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff"
>  

 <GridView android:layout_height="match_parent" android:id="@+id/all_workouts_list" 
  android:columnWidth="90dp"
    android:gravity="center"
    android:horizontalSpacing="10dp"
    android:numColumns="auto_fit"
    android:stretchMode="columnWidth"
    android:verticalSpacing="10dp"  android:cacheColorHint="#ffffffff" 
    android:layout_width="match_parent" 
   android:layout_above="@+id/add_workout_all_workout_list"></GridView>

<Button android:layout_width="wrap_content"      
 android:id="@+id/add_workout_all_workout_list" android:layout_height="wrap_content" 
 android:text="Add Workout" android:layout_alignParentBottom="true"  
 android:layout_alignParentLeft="true"></Button>

</RelativeLayout>

适合我的工作

Answer 3

我设法通过一个小技巧为我的gridview添加页脚。让我们说你的适配器主要数据是 MyDataInfo对象列表列表，现在当您将所有数据传递给适配器时，您可以添加两个空（ null ）对象并在getView中检查数据是否为null，并使所需的视图膨胀。

// in the adapter
public void addVoid(YourInfo info) {
    dataList.add(info);
    dataList.add(info);
    notifyDataSetChanged();
}
public View getView(int position, View convertView, ViewGroup parent) {
if (dataList.get(position) !=null) {
    View vi = convertView;
    ViewHolder holder;
    if (convertView == null || convertView.getTag().equals("stop")) {
        //inflate your gridview item
    }
    else {
        holder = (ViewHolder) vi.getTag();
    }


    // provide data to views

    return vi;
    }
    else {
        View v;
        if (position == dataList.size() - 2) {
            v = inflater.inflate(R.layout.show_more, null); // load more view
            v.setTag("stop");
        }
        else {
        v = inflater.inflate(R.layout.progress_bar, null); // progress bar
            v.setTag("stop");
        }
        return v;
    }

}

在您设置适配器的主要活动之前，您将拥有类似这样的内容

YourAdapter adap = new YourAdapter(this, dataList);
gridView.setAdapter(adap);
YourInfo info = null;
adapter.addVoid(info);

重要的是你必须处理onitemclick

int size = adapter.getCount();
public void onItemClick(AdapterView<?> parent,View view, int position, long id) {
    if (position == size - 2) {  // user selected SHOW MORE view
         int wantedPosition = size - 1;
         int firstPosition = grid.getFirstVisiblePosition();
     int wantedChild = wantedPosition- firstPosition;
         ProgressBar progBar = grid.getChildAt(wantedChild);
         progBar.setVisibility(View.Visible);
         return;
         }
    if (position == size - 1) // user selected progress bar 
         return;
    }

希望这有助于^^

Answer 4

向GridView添加两个属性：

android：paddingBottom，大小为Button;
机器人：clipToPadding = “假”

这将为网格底部的按钮腾出一些空间。

Answer 5

首先尝试添加按钮，然后将网格视图放在其上。这样的事情应该有效：

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/relativeLayout1"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <Button
        android:id="@+id/button1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:text="Load More Images" />

    <GridView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/gridview"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_above="@id/button1"
        android:columnWidth="90dp"
        android:gravity="center"
        android:horizontalSpacing="10dp"
        android:numColumns="auto_fit"
        android:stretchMode="columnWidth"
        android:verticalSpacing="10dp" />

</RelativeLayout>

修改

根据您的评论，我可以看到上述原因无法解决的原因。假设你的意思是你只想在滚动到底部之后才显示按钮（而不是整个时间都在屏幕上），这就是我推荐的布局：

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <GridView
            android:id="@+id/gridview"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:columnWidth="90dp"
            android:gravity="center"
            android:horizontalSpacing="10dp"
            android:numColumns="auto_fit"
            android:stretchMode="columnWidth"
            android:verticalSpacing="10dp" />

        <Button
            android:id="@+id/button1"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="Load More Images" />

    </LinearLayout>
</ScrollView>

Answer 6

使用与以下相同的内容：

编辑：

<FrameLayout android:id="@+id/linear_Layout_List"
        android:layout_gravity="center_horizontal|top|bottom"
        android:layout_marginTop="90dip" android:orientation="vertical"
        android:layout_width="fill_parent" android:layout_height="fill_parent"
        android:layout_marginBottom="60dip" android:background="#E4E4E4">
        <GridView android:layout_width="fill_parent"
            android:layout_gravity="center_horizontal|top|bottom"
            android:columnWidth="90dp" android:numColumns="3"
            android:horizontalSpacing="10dp" android:stretchMode="columnWidth"
            android:gravity="center" android:id="@+id/Search_Result_Grid"
            android:background="#E4E4E4" android:focusable="true"
            android:verticalSpacing="10dp" android:layout_height="wrap_content"
            android:layout_marginBottom="45dip">
        </GridView>
        <Button android:id="@+id/txt_LoadMoreGrid"
            android:layout_width="fill_parent" android:layout_gravity="center_horizontal|bottom"
            android:layout_height="wrap_content" android:text="Load More...."
            android:clickable="true" android:textColor="#ffffff"
            android:visibility="invisible" android:background="@drawable/top_bar_bg"></Button>
    </FrameLayout>

并调用onScroll方法隐藏相同的内容...........这个实现对于GridView中的LOAD MORE功能.............它适用于我

grid.setOnScrollListener(new OnScrollListener() {

            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {


            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

                System.out.println("The first visible Item:"+firstVisibleItem);
                if(width<=320 && height<=480)
                {
                if(firstVisibleItem+5==totalItemCount-1)
                {
                    /*FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT,FrameLayout.LayoutParams.WRAP_CONTENT,Gravity.NO_GRAVITY);
                        layoutParams.setMargins(0, 0, 0, 45);
                        grid.setLayoutParams(layoutParams);*/
                    tv_Load.setVisibility(tv_Load.VISIBLE);
                }
                else
                {
                    /* FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT,FrameLayout.LayoutParams.WRAP_CONTENT,Gravity.NO_GRAVITY);
                        layoutParams.setMargins(0, 0, 0, 0);
                        grid.setLayoutParams(layoutParams);*/
                        tv_Load.setVisibility(tv_Load.GONE);
                }
                }
                else
                {
                    if(firstVisibleItem+8==totalItemCount-1)
                    {
                        /*FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT,FrameLayout.LayoutParams.WRAP_CONTENT,Gravity.NO_GRAVITY);
                            layoutParams.setMargins(0, 0, 0, 45);
                            grid.setLayoutParams(layoutParams);*/
                        tv_Load.setVisibility(tv_Load.VISIBLE);
                    }
                    else
                    {
                        /* FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT,FrameLayout.LayoutParams.WRAP_CONTENT,Gravity.NO_GRAVITY);
                            layoutParams.setMargins(0, 0, 0, 0);
                            grid.setLayoutParams(layoutParams);*/
                            tv_Load.setVisibility(tv_Load.GONE);
                    }
                }
            }
        });

Answer 7

检查这是否有帮助

<Button
    android:id="@+id/button1"
    style="@android:style/ButtonBar"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:text="Load More Images" />

需要在Android中为Gridview创建Footer

7 个答案: