listview中item的上移、下移和删除

最近遇到一个需求，在开店时需要店主上传图文详情，并且店主可以随时调整每个图文的顺序，现将代码贴出来

public class MainActivity extends AppCompatActivity {    private ListView listview;    private ImageView add;    private PicAndFondAdapter adapter;    private List<PicAndfontBean> list = new ArrayList<PicAndfontBean>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        listview = (ListView) findViewById(R.id.listview);        View foot_view = View.inflate(MainActivity.this,R.layout.foot_view,null);        add = (ImageView) foot_view.findViewById(R.id.add);        listview.addFooterView(foot_view);        initview();    }    private void initview() {        list.clear();        adapter = new PicAndFondAdapter(MainActivity.this,list);        listview.setAdapter(adapter);        add.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                PicAndfontBean bean = new PicAndfontBean();                bean.setPic("http://img.pconline.com.cn/images/upload/upc/tx/itbbs/1202/09/c3/10378469_1328796216421_1024x1024it.jpg");                bean.setWenzi("");                list.add(bean);                adapter.notifyDataSetChanged();            }        });    }}

适配器是重点

/** * description:图文详情适配器 * @author: libaojian * Time: 2016/10/25 10:44 */public class PicAndFondAdapter extends BaseAdapter{    private List<PicAndfontBean> list = new ArrayList<PicAndfontBean>();    private Activity context;    private DisplayImageOptions displayImageOptions;    public PicAndFondAdapter(Activity context, List<PicAndfontBean> list){        this.context = context;        this.list = list;        // 初始化ImageLoader        ImageLoaderUtils.initBigImageLoader(context);        displayImageOptions = ImageLoaderUtils.getDisplayOptions();    }    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int position) {        return list.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(final int position, View convertView, ViewGroup parent) {        final ViewHolder holder;        if (convertView == null) {            holder = new ViewHolder();            convertView = View.inflate(context, R.layout.item_pic_wenzi, null);            holder.img = (ImageView) convertView.findViewById(R.id.img);            holder.edit = (EditText) convertView.findViewById(R.id.edit);            holder.icon_up = (ImageView) convertView.findViewById(R.id.icon_up);            holder.icon_down = (ImageView) convertView.findViewById(R.id.icon_down);            holder.icon_delete = (ImageView) convertView.findViewById(R.id.icon_delete);            convertView.setTag(holder);        } else {            holder = (ViewHolder) convertView.getTag();        }        if (position == 0){            holder.icon_up.setVisibility(View.GONE);        }else{            holder.icon_up.setVisibility(View.VISIBLE);        }        if (position == list.size()-1&&position != 0){            holder.icon_down.setVisibility(View.GONE);        }else{            holder.icon_down.setVisibility(View.VISIBLE);        }        final PicAndfontBean bean = list.get(position);        holder.edit.setText(bean.getWenzi());        ImageLoader.getInstance().displayImage(                bean.getPic(), holder.img,                displayImageOptions);        //下移        holder.icon_down.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                    bean.setWenzi(holder.edit.getText().toString());                    bean.setPic("http://img.pconline.com.cn/images/upload/upc/tx/itbbs/1202/09/c3/10378469_1328796216421_1024x1024it.jpg");                    indexExChange(list,position,position+1);                    notifyDataSetChanged();            }        });        //上移        holder.icon_up.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                        bean.setWenzi(holder.edit.getText().toString());                        bean.setPic("http://img.pconline.com.cn/images/upload/upc/tx/itbbs/1202/09/c3/10378469_1328796216421_1024x1024it.jpg");                        indexExChange(list, position, position - 1);                        notifyDataSetChanged();                }        });        holder.icon_delete.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                list.remove(position);                notifyDataSetChanged();            }        });        holder.edit.setOnFocusChangeListener(new View.OnFocusChangeListener() {            @Override            public void onFocusChange(View v, boolean hasFocus) {                if(hasFocus){//获得焦点                   // ((InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(context.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);                }else{//失去焦点                    bean.setWenzi(holder.edit.getText().toString());                    bean.setPic("http://img.pconline.com.cn/images/upload/upc/tx/itbbs/1202/09/c3/10378469_1328796216421_1024x1024it.jpg");                }            }        });        return convertView;    }    class ViewHolder{        public ImageView img,icon_up,icon_down,icon_delete;        private EditText edit;    }    public static <T> List<T> indexExChange(List<T> list,int index1,int index2){        T t = list.get(index1);        list.set(index1, list.get(index2));        list.set(index2, t);        return list;    }}

/** * description:图文详情实体类 * @author: libaojian * Time: 2016/10/25 10:40 */public class PicAndfontBean implements Serializable{    private String pic;    private String wenzi;    public String getPic() {        return pic;    }    public void setPic(String pic) {        this.pic = pic;    }    public String getWenzi() {        return wenzi;    }    public void setWenzi(String wenzi) {        this.wenzi = wenzi;    }}
下面是布局文件

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#f3f3f3"    tools:context="com.tianyijing.uploadimagedemo.MainActivity">    <ListView        android:id="@+id/listview"        android:layout_width="match_parent"        android:layout_height="wrap_content"/></RelativeLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#f3f3f3">    <RelativeLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="#ffffff"        android:layout_marginTop="8dp"        android:layout_below="@+id/listview"        >        <ImageView            android:id="@+id/add"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:src="@mipmap/add_icon_add"/>    </RelativeLayout></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent"    >    <RelativeLayout        android:layout_width="match_parent"        android:layout_height="58dp"        >        <ImageView            android:id="@+id/img"            android:layout_width="58dp"            android:layout_height="58dp"            android:scaleType="centerCrop"            android:background="#999999"/>        <EditText            android:id="@+id/edit"            android:layout_toRightOf="@+id/img"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:background="@null"            android:gravity="top|left"            />                <LinearLayout            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:orientation="horizontal"            android:layout_alignParentRight="true"            android:layout_alignParentBottom="true"            >            <ImageView                android:id="@+id/icon_up"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:src="@mipmap/icon_up"                android:layout_marginRight="16dp"/>            <ImageView                android:id="@+id/icon_down"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:src="@mipmap/icon_down"                android:layout_marginRight="16dp"/>            <ImageView                android:id="@+id/icon_delete"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:src="@mipmap/icon_delete"                android:layout_marginRight="16dp"/>        </LinearLayout>    </RelativeLayout></LinearLayout>

具体demo可以联系我qq：763352330