设置ListView无数据的时候显示TextView暂无数据

来源：互联网发布：我的世界js下载手机版编辑：程序博客网时间：2024/05/22 00:55

在ListView列表中，如果没有数据的时候进行友好的文字提示。

package com.example.lixiangjian.myapplication;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.widget.AdapterView;import android.widget.ListView;import android.widget.TextView;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    private ListView listView;    private TextView text_tip;    private List<Bean> list;    private MyAdapter adapter;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();        initData();        adapter = new MyAdapter(list, this);        listView.setAdapter(adapter);        listView.setEmptyView(text_tip);//设置当ListView为空的时候显示text_tip "暂无数据"        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                list.remove(position);                adapter.notifyDataSetChanged();//在list删除数据的时候 记得要刷新适配器（）            }        });    }    private void initView() {        listView = (ListView) findViewById(R.id.list);        text_tip = (TextView) findViewById(R.id.text_tip);    }    private void initData() {        list = new ArrayList<>();        for (int i = 0; i < 20; i++) {            list.add(new Bean("张三" + i, "账号：" + i));        }    }}

package com.example.lixiangjian.myapplication;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;import java.util.List;/** * Created by Lixiangjian on 2017/5/9. */public class MyAdapter extends BaseAdapter {    private List<Bean> list;    private Context context;    public MyAdapter(List<Bean> list, Context context) {        this.list = list;        this.context = context;    }    @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(int position, View convertView, ViewGroup parent) {        ViewHoder viewHoder;        if (convertView == null) {            viewHoder = new ViewHoder();            convertView = LayoutInflater.from(context).inflate(R.layout.item, null);            viewHoder.name = (TextView) convertView.findViewById(R.id.name);            viewHoder.code = (TextView) convertView.findViewById(R.id.code);            convertView.setTag(viewHoder);        } else {            viewHoder = (ViewHoder) convertView.getTag();        }        viewHoder.name.setText(list.get(position).getName());        viewHoder.code.setText(list.get(position).getCode());        return convertView;    }    class ViewHoder {        private TextView name;        private TextView code;    }}

package com.example.lixiangjian.myapplication;/** * Created by Lixiangjian on 2017/5/9. */public class Bean {    private String name;    private String code;    public Bean(String name, String code) {        this.name = name;        this.code = code;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getCode() {        return code;    }    public void setCode(String code) {        this.code = code;    }}

<?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="match_parent"    android:orientation="vertical">    <ListView        android:id="@+id/list"        android:layout_width="match_parent"        android:layout_height="match_parent" />    <TextView        android:id="@+id/text_tip"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="30dp"       android:textColor="@color/colorAccent"        android:text="暂无数据"/></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:id="@+id/name"        android:layout_weight="1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="20dp"        android:text="姓名"/>    <TextView        android:id="@+id/code"        android:layout_weight="1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:gravity="center"        android:textSize="20dp"        android:text="编码"/></LinearLayout>

当点击删除item的删除完所有数据后会显示“暂无数据”进行提醒

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