java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive

我们知道在子线程中更新UI,会报java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from
the UI thread,这个错误相信大家都遇见过,在此记录下,写一个简单的Demo，

package com.example.listviewdemo;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {
private ListView lv;
private List<String> datas;
private MyAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter = new MyAdapter();
lv = (ListView) findViewById(R.id.lv);
lv.setAdapter(adapter);
datas = new ArrayList<String>();

new Thread(){
public void run() {
for(int i=0;i<10000;i++){
datas.add("测试："+i);
adapter.setDatas(datas);
adapter.notifyDataSetChanged();
}
}
}.start();
}

class MyAdapter extends BaseAdapter{
private List<String> datas;
public void setDatas(List<String> datas) {
this.datas = datas;
}

@Override
public int getCount() {
return (datas!=null&&datas.size()>0)?datas.size():0;
}

@Override
public Object getItem(int arg0) {
return datas.get(arg0);
}

@Override
public long getItemId(int arg0) {
return arg0;
}
@Override
public View getView(int arg0, View arg1, ViewGroup arg2) {
TextView tv = new TextView(MainActivity.this);
tv.setText(datas.get(arg0));
return tv;
}
}

可以看到adapter.notifyDataSetChanged();这行代码是在子线程中,所以导致上述错误,解决起来就很简单,在这不多说