list绑定数据和设置ListView无数据的时候显示TextView暂无数据

转载自：http://blog.csdn.net/llixiangjian/article/details/71599590

用Android studio开发
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





源码下载