PullToRefreshListView

来源：互联网发布：淘宝sdr是什么意思编辑：程序博客网时间：2024/06/05 05:13

//先导入library包

import android.os.AsyncTask;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.widget.ListView;import com.google.gson.Gson;import com.handmark.pulltorefresh.library.PullToRefreshBase;import com.handmark.pulltorefresh.library.PullToRefreshListView;import java.util.List;public class MainActivity extends AppCompatActivity {    private PullToRefreshListView lv;    private int i=1;    private   Myadapter myadapter;    private List<JavaBean.ResultsBean> data;    private static final String surl="http://gank.io/api/data/Android/10/1";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lv=(PullToRefreshListView)findViewById(R.id.pull_refresh_list);        //解析数据        new AsyncTask<String,Integer,String>(){            @Override            protected String doInBackground(String... strings) {                String str=new GetJson().getJson(surl);                return  str;            }            @Override            protected void onPostExecute(String s) {                super.onPostExecute(s);                data = new Gson().fromJson(s, JavaBean.class).getResults();                //设置适配器                myadapter = new Myadapter(data, MainActivity.this);                lv.setAdapter(myadapter);            }        }.execute();        //监听        lv.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {                                    //下拉刷新            @Override            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {                new AsyncTask<String,Integer,String>(){                    @Override                    protected String doInBackground(String... strings) {                        String str=new GetJson().getJson(surl);                        return  str;                    }                    @Override                    protected void onPostExecute(String s) {                        super.onPostExecute(s);                        List<JavaBean.ResultsBean> data = new Gson().fromJson(s, JavaBean.class).getResults();                        //设置适配器                        lv.setAdapter(new Myadapter(data,MainActivity.this));                        myadapter.notifyDataSetChanged();                        //停止刷新                        lv.onRefreshComplete();                    }                }.execute();            }                                    //上拉加载            @Override            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {                new AsyncTask<String,Integer,String>(){                    @Override                    protected String doInBackground(String... strings) {                        String str=new GetJson().getJson(surl);                        return  str;                    }                    @Override                    protected void onPostExecute(String s) {                        super.onPostExecute(s);                        List<JavaBean.ResultsBean> data1 = new Gson().fromJson(s, JavaBean.class).getResults();                        //设置适配器                        data.addAll(data1);                        myadapter.notifyDataSetChanged();                        //停止刷新                        lv.onRefreshComplete();                    }                }.execute();            }        });    }}

阅读全文

0 0