Listview 分頁加載

     

1.導依賴

compile 'com.scwang.smartrefresh:SmartRefreshLayout:1.0.3'
compile 'com.scwang.smartrefresh:SmartRefreshHeader:1.0.3'//沒有使用特殊Header，能夠不加這行

2.XML佈局文件

<com.scwang.smartrefresh.layout.SmartRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/srl"
    tools:context="com.example.yuekao003.CFragment">

    <ListView
        android:id="@+id/lv"
        android:overScrollMode="never"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></ListView>

</com.scwang.smartrefresh.layout.SmartRefreshLayout>

3.代碼實現

1）

RefreshLayout refreshLayout = (RefreshLayout)findViewById(R.id.refreshLayout);
refreshLayout.setOnRefreshListener(new OnRefreshListener() {
    @Override
    public void onRefresh(RefreshLayout refreshlayout) {
        refreshlayout.finishRefresh(2000);
    }
});
refreshLayout.setOnLoadmoreListener(new OnLoadmoreListener() {
    @Override
    public void onLoadmore(RefreshLayout refreshlayout) {
        refreshlayout.finishLoadmore(2000);
    }
});

2）

//設置 Header 爲 Material風格
refreshLayout.setRefreshHeader(new MaterialHeader(this).setShowBezierWave(true));
//設置 Footer 爲 球脈衝
refreshLayout.setRefreshFooter(new BallPulseFooter(this).setSpinnerStyle(SpinnerStyle.Scale));

全局代碼：

public class CFragment extends Fragment {


    private ListView lv;
    private RefreshLayout srl;
    private CAdapter cAdapter;
    private List<CBean.DataBean.ForecastBean> list;
    private List<CBean.DataBean.ForecastBean> list2;
    private String URL = "http://www.sojson.com/open/api/weather/json.shtml?city=北京";
    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what){
                case 1:
                    String s = (String) msg.obj;
                    Gson gson = new Gson();
                    CBean bean = gson.fromJson(s, CBean.class);
                    list = bean.getData().getForecast();
                    list2 = new ArrayList<>();
                    for (int i = 0; i < 3; i++) {
                        list2.add(list.get(i));
                    }
                    cAdapter = new CAdapter(getActivity(),list2);
                    lv.setAdapter(cAdapter);
            }
        }
    };
    public CFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View inflate = inflater.inflate(R.layout.fragment_c, container, false);
        initView(inflate);
        initData();
        initShuaxin();
        return inflate;
    }

    private void initShuaxin() {
        srl.setOnRefreshListener(new OnRefreshListener() {
            @Override
            public void onRefresh(RefreshLayout refreshlayout) {
                refreshlayout.finishRefresh(2000);
                initData();
            }
        });
        srl.setOnLoadmoreListener(new OnLoadmoreListener() {
            @Override
            public void onLoadmore(RefreshLayout refreshlayout) {
                refreshlayout.finishLoadmore(2000);
                initTianJia();
            }
        });

        //設置 Header 爲 Material風格
        srl.setRefreshHeader(new MaterialHeader(getActivity()).setShowBezierWave(true));
        //設置 Footer 爲 球脈衝
        srl.setRefreshFooter(new BallPulseFooter(getActivity()).setSpinnerStyle(SpinnerStyle.Scale));

    }
    private void initTianJia() {

        int itemCount = cAdapter.getCount();
        if (itemCount+3<list.size()){
            for (int i = itemCount; i < itemCount+3; i++) {
                list2.add(list.get(i));
            }
        }else {
            for (int i = itemCount; i < list.size(); i++) {
                list2.add(list.get(i));
            }
        }
        cAdapter.notifyDataSetChanged();

    }
    private void initData() {
        OkHttpClient okHttpClient = OkHttpUtil.getInstance();
        Request request = new Request.Builder().url(URL).build();
        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {

            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                String s = response.body().string();
                handler.obtainMessage(1,s).sendToTarget();
            }
        });
    }

    private void initView(View inflate) {
        lv = (ListView) inflate.findViewById(R.id.lv);
        srl = (RefreshLayout) inflate.findViewById(R.id.srl);
    }
}