Question

我正在开发Android应用程序，我想修复列表底部的按钮，所以如果刷新列表并且更多项目添加到列表中，那么按钮应该仍然是最后一个。

我使用了以下代码，但问题是它显示的是此图像的按钮。

enter image description here

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="3dp"
    android:layout_marginRight="3dp"
    android:background="@drawable/newlistselector"
    android:descendantFocusability="blocksDescendants"
    android:gravity="center_vertical" 
    android:orientation="vertical">


<LinearLayout 
    android:layout_width="match_parent"
    android:layout_height="130dp"
    android:layout_marginLeft="3dp"
    android:layout_marginRight="3dp"
    android:background="@drawable/newlistselector"
    android:descendantFocusability="blocksDescendants"
    android:gravity="center_vertical"

    android:orientation="horizontal" >

    <com.ziqitza.views.CircularImageView
        android:id="@+id/imgNotificationProfile"
        android:layout_width="80dp"
        android:layout_height="80dp"
        android:layout_marginTop="5dp"
        android:layout_marginBottom="5dp"
        android:layout_marginRight="5dp"
        android:layout_marginLeft="3dp"
        android:padding="5dp"
        android:scaleType="fitXY"
        android:src="@drawable/profile_" />

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <ImageView
            android:id="@+id/imgSearchContact"
            android:layout_width="25dp"
            android:layout_height="25dp"
            android:layout_centerVertical="true"
            android:layout_toLeftOf="@+id/ll_indicator"
            android:src="@drawable/arrowright" />

        <LinearLayout
            android:id="@+id/ll_indicator"
            android:layout_width="4dp"
            android:layout_height="match_parent"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:background="@drawable/roundcorner_topright_downright"
            android:orientation="vertical" >
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/txtNotificationDesc"
                android:layout_width="210dp"
                android:layout_height="match_parent"
                android:gravity="center_vertical"
                android:maxLines="2"
                android:text="Description"
                android:textAppearance="?android:attr/textAppearanceMedium"
                android:textColor="#000"
                android:textSize="12sp" />

            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="10dp" >

                <TextView
                    android:id="@+id/txtDateTime"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="Status: "
                    android:textAppearance="?android:attr/textAppearanceSmall"
                    android:textColor="#000"
                    android:textSize="9sp" />

                <TextView
                    android:id="@+id/txtStatus"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textSize="9sp" />
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_alignRight="@+id/imgSearchContact"
            android:layout_marginRight="10dp"
            android:gravity="center_vertical|right"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/txtNotificationTime"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="center_vertical|right"
                android:text="time"
                android:textColor="#000"
                android:textSize="8sp" />
        </LinearLayout>

    </RelativeLayout>
</LinearLayout>

</LinearLayout>

适配器和活页夹代码：

private AdapterDataBinder<ParseObject> mNotificationsBinder = new AdapterDataBinder<ParseObject>() {



        @Override
        public void bind(ParseObject data, View view, int position) {


            if (isLoadingFirstTime) {
            mHolder.mTxtDesciption = (TextView) view.findViewById(R.id.txtNotificationDesc);
            mHolder.mTxtTime = (TextView) view.findViewById(R.id.txtNotificationTime);
            mHolder.mImageProfile = (CircularImageView) view.findViewById(R.id.imgNotificationProfile);
            mHolder.mll_State = (LinearLayout) view.findViewById(R.id.ll_indicator);
            mHolder.mTxtDesciption.setText(data.getString("description"));
            mHolder.txtStatus = (TextView) view.findViewById(R.id.txtStatus);

//          mHolder.btnRequest = (Button) view.findViewById(R.id.button1);

            mHolder.txtStatus.setVisibility(View.VISIBLE);

            if (!data.getString("type").equals("TrustedNetwork")) {
                showStatus(data);

            } else
                mHolder.txtStatus.setVisibility(View.GONE);


            mHolder.mTxtTime.setText(mSDF.format(data.getCreatedAt()));

            try {

                if (data.getBoolean("seen")) {
                    mHolder.mll_State.setVisibility(View.INVISIBLE);
                } else
                    mHolder.mll_State.setVisibility(View.VISIBLE);
                ParseFile userimage = data.getParseObject("sender").getParseFile("profileImage");

                if (userimage == null) {
                    Utils.loadProfileImage(NotificationsActivity.this, null, mHolder.mImageProfile);
                } else
                    Utils.loadProfileImage(NotificationsActivity.this, null, mHolder.mImageProfile);
                Picasso.with(view.getContext()).load(userimage.getUrl()).into(mHolder.mImageProfile);

            } catch (Exception ex) {
                ex.printStackTrace();
            }

            view.setTag(mHolder);

            }else{

            mHolder = (ViewHolder) view.getTag();

            }
        }

        @Override
        public void bind(ParseObject data, View view) {
        }
    };

持有人类别：

ViewHolder mHolder = new ViewHolder();

    static class ViewHolder{

        private TextView mTxtDesciption, mTxtTime;
        private CircularImageView mImageProfile;
        Button btn;// = (Button) findView(R.id.refreshBtn);
        private LinearLayout mll_State;
        TextView txtStatus;
        Button btnRequest;
    }

Answer 1

如果您想在列表项的底部放置按钮，则可以使用addFooterView()的{{1}}方法。例如，这将适用于列表页脚中添加的一个按钮。

ListView

这会将包含您在图片中提到的3个按钮的视图放在Button btn = new Button(this); btn.setText("Done"); ListView lst = (ListView) findViewById(R.id.yourlist); lst.addFooterView(btn); // * your view containing the 3 buttons *//的最后一项之后。

Answer 2

继续发表评论..

添加页脚 - 通过Jibran Khan
count解决方法
- 使用BaseAdapter来充气ListView
- 更新getCount()函数以发回增加的长度。
  
  @Override public int getCount() { return data.length + 1; }
- 现在，更新getView()方法以根据位置对不同的视图进行充气。
  
  @Override public View getView(int position, View convertView, ViewGroup parent) { if(position != getCount() - 1) convertView= layoutInflater.inflate(R.layout.item, null); else convertView= layoutInflater.inflate(R.layout.button, null); return convertView; }
- 不要忘记将ViewHolder模式添加到此代码中。

要使用AdapterDataBinder，我不知道如何决定最大数量，所以你自己必须在getCount()中查找调整，但代码是从getView()方法开始，它应放在onBind()

if (isLoadingFirstTime || position == last - 1) {
    if (position == last - 1) {
        // Inflate the buttons layout
    } else {
        // Do as you already did...
    }
}

Answer 3

最后我得到了解决方案，我现在正在ViewGroup中传递LayoutInflater，其中包含我的页脚布局，然后在我的ViewGroup中，我正在通过我的按钮，最后我在列表视图中添加页脚视图。

 LayoutInflater inflater = getLayoutInflater();
 ViewGroup footer = (ViewGroup) inflater.inflate(R.layout.footer_view, mListView, false);

 mListView.addFooterView(footer, null, false);
 mListView.setAdapter(mAdapter);
 final Button footerRefreshBtn = (Button) footer.findViewById(R.id.footerRefreshBtn);

 footerRefreshBtn.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 footerRefreshBtn.setVisibility(View.GONE);
 populateNotifications(10);
 }
                    });

Answer 4

这样做

main_list.xml

<?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="wrap_content" >

    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/linTop"
        android:layout_marginBottom="10dp" >
    </ListView>

    <LinearLayout
        android:id="@+id/linTop"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal" >

        <Button
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="Done"
            android:textSize="15sp" />

        <Button
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="Cancel"
            android:textSize="15sp" />

        <Button
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="Select All"
            android:textSize="15sp" />
    </LinearLayout>

</RelativeLayout>

Android中列表视图底部的按钮

4 个答案: