ListView动态加载、下拉刷新

public class MainActivity extends AppCompatActivity implements View.OnClickListener, AbsListView.OnScrollListener {

    private ListView lv;
    private int mPageIndex = 1;
    private View mFootView;
    private MyAdapter myAdapter;
    private List feeds= new ArrayList<>();
    private Button foot;
    private int count;

    private Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            String str = (String) msg.obj;
            Gson gson = new Gson();
            Mybean mybean = gson.fromJson(str, Mybean.class);
            feeds.addAll(mybean.getParamz().getFeeds());
            myAdapter.notifyDataSetChanged();
            mswipe.setRefreshing(false);
        }
    };

private SwipeRefreshLayout mswipe;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
    initData();

下拉刷新----->

    mswipe.setProgressBackgroundColorSchemeResource(android.R.color.white);
    // 设置下拉进度的主题颜色
    mswipe.setColorSchemeResources(R.color.colorAccent, R.color.colorPrimary, R.color.colorPrimaryDark);
    mswipe.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            feeds.clear();
            mPageIndex =1;
            initData();
        }
    });
}

获取网络数据---->

private void initData()         {
    new Thread(new Runnable() {
        @Override
        public void run() {
            try {
                OkHttpClient okHttpClient = new OkHttpClient();
                Request request = new Request.Builder().url("http://litchiapi.jstv.com/api/GetFeeds?column=3&PageSize=10&pageIndex=" + mPageIndex + "&val=100511D3BE5301280E0992C73A9DEC41").build();
                Response response = okHttpClient.newCall(request).execute();
                String string = response.body().string();
                Log.e("aaaaaa",string);
                handler.obtainMessage(100,string).sendToTarget();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }).start();
}

将适配器实例化，添加尾布局

private void initView() {
    lv = (ListView) findViewById(R.id.lv);
    mswipe = findViewById(R.id.swiperefresh);
    myAdapter = new MyAdapter(MainActivity.this,feeds);
    mFootView = LayoutInflater.from(this).inflate(R.layout.weibuju, null);
    foot = (Button) mFootView.findViewById(R.id.weibu);
    foot.setVisibility(View.GONE);
    lv.setOnScrollListener(this);
    foot.setOnClickListener(this);
    lv.addFooterView(mFootView)；
    lv.setAdapter(myAdapter);
}

@Override
public void onClick(View v) {
    switch (v.getId()){
        case R.id.weibu:
            mPageIndex++;
            initData();
            break;
    }
}

ListView的滑动监听

@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
    if (scrollState==0&&myAdapter.getCount()==count){
        foot.setVisibility(View.VISIBLE);
    }
}

@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
    count = totalItemCount-1;
}

}