上拉刷新

//添加依赖并且初始化,添加网络权限

//主界面

public class PullToRefreshListActivity extends AppCompatActivity {

    private PullToRefreshListView pull_refresh_list;
    private ListView actualListView;
    private Gson gson= new Gson();
    private ArrayAdapter<String> mAdapter;
    private ListviewAdapter listviewAdapter;
    private List<ListInfo.DataBean> list = new ArrayList<>();
    private int page = 1;
    private boolean isRefresh = true;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_pull_to_refresh_list);
        ActionBar supportActionBar = getSupportActionBar();
        supportActionBar.setTitle("菜单一");
        supportActionBar.setSubtitle("好菜好吃好美味!");
        initView();
    }

    private void initView() {
        pull_refresh_list = (PullToRefreshListView) findViewById(R.id.pull_refresh_list);
        actualListView = pull_refresh_list.getRefreshableView();
        pull_refresh_list.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                String label = DateUtils.formatDateTime(getApplicationContext(), System.currentTimeMillis(),
                        DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL);
                // Update the LastUpdatedLabel
                refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);
                isRefresh  = true;
                page = 1;
                show();
            }

            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                String label = DateUtils.formatDateTime(getApplicationContext(), System.currentTimeMillis(),
                        DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL);
                // Update the LastUpdatedLabel
                refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);
                isRefresh =false;
                page++;
                show();
            }
        });
    }

    private void show() {
        x.http().get(new RequestParams() {
            {
                setUri("http://www.qubaobei.com/ios/cf/dish_list.php");
                addParameter("stage_id", "1");
                addParameter("limit", "10");
                addParameter("page", page);
            }
        }, new Callback.CacheCallback<String>() {
            @Override
            public boolean onCache(String result) {
                return false;
            }

            @Override
            public void onSuccess(String result) {
                DemonstrateUtil.showToastResult(PullToRefreshListActivity.this, "刷新成功!");
                DemonstrateUtil.showLogResult("onSuccess");
                page++;
                ListInfo listInfo = gson.fromJson(result, ListInfo.class);
                List<ListInfo.DataBean> data = listInfo.getData();

                if (isRefresh){
                    if (list.size() != 0) {
                        list.clear();
                    }
                    list.addAll(data);
                }else{
                    list.addAll(data);
                }
                if (null == listviewAdapter) {
                    listviewAdapter = new ListviewAdapter(list, PullToRefreshListActivity.this);
                    actualListView.setAdapter(listviewAdapter);
                } else {
                    listviewAdapter.notifyDataSetChanged();
                }
                pull_refresh_list.onRefreshComplete();
            }

            @Override
            public void onError(Throwable ex, boolean isOnCallback) {

            }

            @Override
            public void onCancelled(CancelledException cex) {

            }

            @Override
            public void onFinished() {

            }
        });
    }
}

//适配器添加了动画和圆角的

public class ListviewAdapter extends BaseAdapter{
    private List<ListInfo.DataBean> mData;
    private Context mContext;

    public ListviewAdapter(List<ListInfo.DataBean> mData, Context mContext) {
        this.mData = mData;
        this.mContext = mContext;
    }

    @Override
    public int getCount() {
        return mData.size();
    }

    @Override
    public Object getItem(int i) {
        return mData.get(i);
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {
        ViewHolder viewHolder;
        if (view == null) {
            view = View.inflate(mContext, R.layout.item_food, null);
            viewHolder = new ViewHolder(view);
            view.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) view.getTag();
        }

        viewHolder.titleTv.setText(mData.get(i).getTitle());
        viewHolder.foodStrTv.setText(mData.get(i).getFood_str());
        viewHolder.numTv.setText(mData.get(i).getNum()+"");
        viewHolder.collectNumTv.setText(mData.get(i).getId());
        Uri uri = Uri.parse(mData.get(i).getPic());
        viewHolder.mainSdv.setImageURI(uri);
        return view;
    }
        static class ViewHolder {
        protected SimpleDraweeView mainSdv;
        protected TextView titleTv;
        protected TextView foodStrTv;
        protected TextView numTv;
        protected TextView collectNumTv;

        ViewHolder(View rootView) {
            initView(rootView);
        }

        private void initView(View rootView) {
            mainSdv = (SimpleDraweeView) rootView.findViewById(R.id.main_sdv);
            titleTv = (TextView) rootView.findViewById(R.id.title_tv);
            foodStrTv = (TextView) rootView.findViewById(R.id.food_str_tv);
            numTv = (TextView) rootView.findViewById(R.id.num_tv);
            collectNumTv = (TextView) rootView.findViewById(R.id.collect_num_tv);
        }
    }
}

//Gsonformat快捷键创建实体类

ListInfo