分页加载PullToRefreshLayout+PullableListView
PullToRefreshLayout+PullableListView实现分页加载功能
1、修改布局文件（添加下拉刷新和上拉加载的布局）
<com.abcaaaaa.zyypay.ui.widget.pulltorefresh.PullToRefreshLayout
android:id="@+id/pulltorefreshlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/rl_mid">
<include layout="@layout/load_head" />
<com.abcaaaaa.zyypay.ui.widget.pulltorefresh.PullableListView
android:id="@+id/pullablelistview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#E0E0E0"
android:dividerHeight="2px" />
<include layout="@layout/load_more" />
</com.abcaaaaa.zyypay.ui.widget.pulltorefresh.PullToRefreshLayout>
2、设置网络请求的工具类
/**
*设置在不同情况下数据刷新的设置
* @param requestTag
* @param params
* @param onDataListener
* @param showLoad 加载框状态， 0表示弹出收起，1表示只弹出，2表示只收起
* @param pullToRefreshLayout
* @param requsetType 当数据位0时表示普通请求，为1时表示刷新请求，为2时表示加载请求
* @return
*/
public static RequestHandle doPost(final int requestTag, RequestParams params, final OnDataListener onDataListener, final int showLoad,
final PullToRefreshLayout pullToRefreshLayout, final int requsetType) {
// 重连次数,超时时间
client.setMaxRetriesAndTimeout(0, 5000);
return client.post(URL, params, new JsonHttpResponseHandler() {
@Override
public void onStart() {
super.onStart();
onDataListener.onStart(requestTag, showLoad);
}
@Override
public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
super.onSuccess(statusCode, headers, response);
if (requsetType == 1) {
pullToRefreshLayout.refreshFinish(PullToRefreshLayout.SUCCEED);
}
// else if (requsetType == 2){
// pullToRefreshLayout.loadmoreFinish(PullToRefreshLayout.SUCCEED);
// }
onDataListener.onSuccess(requestTag, response, showLoad);
}
@Override
public void onFailure(int statusCode, Header[] headers, Throwable throwable, JSONObject errorResponse) {
super.onFailure(statusCode, headers, throwable, errorResponse);
if (requsetType == 1) {
pullToRefreshLayout.refreshFinish(PullToRefreshLayout.FAIL);
} else if (requsetType == 2) {
pullToRefreshLayout.loadmoreFinish(PullToRefreshLayout.FAIL);
}
onDataListener.onFailure(requestTag, errorResponse, showLoad);
}
@Override
public void onCancel() {
super.onCancel();
onDataListener.onCancel(requestTag, showLoad);
}
});
}
3、获取网络请求的数据（有添加刷新分页功能）
//获取结算列表数据---------改为有刷新加载的请求 20170609修改
public RequestHandle getSettlementList(OnDataListener onDataListener, PullToRefreshLayout pullToRefreshLayout, int requestType,
int page, int requesTag, int showLoad) {
String randomCode = SharedPreferencesUtlis.getString(mContext, ConstantUtlis.SP_RANDOMCODE, "");
HashMap<String, Object> hashMap = new HashMap<>();
if (page > 0) {
hashMap.put("页数", page + "");
} else {
hashMap.put("页数", 1 + "");
}
hashMap.putAll(CommonUtlis.loadMap(ConstantUtlis.SP_INFO_JSON));
RequestParams params = new RequestParams();
params.add("func", FUNC_SETTLEMENTLIST);
params.add("words", randomCode + EnDecryptUtlis.aesEncrypt(JsonUtils.createJSON(hashMap).toString(), randomCode));
return HttpManager.doPost(requesTag, params, onDataListener, showLoad, pullToRefreshLayout, requestType);
}
4、在实现分页刷新加载功能的页面完成如下设置
4.1声明相关的设置
private PullToRefreshLayout pullToRefreshLayout;
private PullableScrollView pullablescrollview;
private ListViewForScrollView mListView;
private TextView mTvNoData;
private TextView tv_settlement_gosettle, tv_settlement_lasttime;
private List<String[]> list = new ArrayList<>();
private CommonAdapter mSettlementListAdapter;
private String lastSettlementTime;
private int page = 0;
4.2刷新功能的具体实现
/**
* @param requestType 请求类型，初始请求=0，刷新=1，加载=2
* @param page 页数
* @param requestTag 请求tag,请求成功后用于区分是哪个请求
* @param showLoad 是否显示请求加载框 0--显示， -1--不显示
*/
private void request(int requestType, int page, int requestTag, int showLoad) {
requestHandleArrayList.add(requestAction.getSettlementList(this, pullToRefreshLayout, requestType, page, requestTag, showLoad));
}
@Override
public void onRefresh(PullToRefreshLayout pullToRefreshLayout) {
if (!list.isEmpty()) {
mSettlementListAdapter.notifyDataSetChanged();
}
list.clear();
request(1, 0, 2, -1);
}
@Override
public void onLoadMore(PullToRefreshLayout pullToRefreshLayout) {
if (page > 0) {
request(2, page + 1, 3, -1);
} else {
MToast.showToast(mContext, "已无数据加载");
pullToRefreshLayout.loadmoreFinish(PullToRefreshLayout.FAIL);
}
}
4.3处理网络请求返回的数据
/**
* 处理请求返回数据
*
* @param response
* @param isLoadMore
*/
private void processResponseData(JSONObject response, boolean isLoadMore) throws JSONException {
Log.e("结算单列表", response.toString());
lastSettlementTime = response.getString("上次结算时间");
tv_settlement_lasttime.setText(lastSettlementTime);
int num = Integer.parseInt(response.getString("条数"));
if (num != 0) {//有可展示的数据
JSONArray jsonArray = response.getJSONArray("列表");
for (int i = 0; i < jsonArray.length(); i++) {
String[] a = new String[6];
JSONObject jsonObject = (JSONObject) jsonArray.get(i);
a[0] = jsonObject.getString("真实名");
a[1] = jsonObject.getString("交易金额");
a[2] = jsonObject.getString("到账金额");
a[3] = jsonObject.getString("结算单号");
a[4] = jsonObject.getString("开始时间");
a[5] = jsonObject.getString("结束时间");
list.add(a);
}
page = num == 10 ? Integer.parseInt(response.getString("页数")) : 0;
mListView.setVisibility(View.VISIBLE);
mTvNoData.setVisibility(View.GONE);
if (isLoadMore) {
pullToRefreshLayout.loadmoreFinish(PullToRefreshLayout.SUCCEED);
mSettlementListAdapter.notifyDataSetChanged();
} else {
setAdapter();
}
} else {//数据条数为0
if (isLoadMore) {
MToast.showToast(mContext, "已无数据加载");
pullToRefreshLayout.loadmoreFinish(PullToRefreshLayout.FAIL);
} else {
mListView.setVisibility(View.GONE);
mTvNoData.setVisibility(View.VISIBLE);
mTvNoData.setText("无数据");
}
}
}
4.4网络请求成功，根据tag区分请求类别
@Override
public void requestSuccess(int requestTag, JSONObject response, int showLoad) throws JSONException {
super.requestSuccess(requestTag, response, showLoad);
switch (requestTag) {
case 1:
processResponseData(response, false);
break;
case 2:
processResponseData(response, false);
break;
case 3:
processResponseData(response, true);
break;
default:
break;
}
}
4.5设置界面展示的adpter
private void setAdapter() {
mSettlementListAdapter = new CommonAdapter<String[]>(SettlementActivity.this, R.layout.item_settlement, list) {
@Override
public void convert(final ViewHolder holder, String[] strings) {
holder.setText(R.id.tv_settlement_name, strings[0]);
holder.setText(R.id.tv_settlement_oddNum, strings[3]);
holder.setText(R.id.tv_settlement_starttime, strings[4]);
holder.setText(R.id.tv_settlement_endtime, strings[5]);
holder.setText(R.id.tv_jiaoyi, strings[1]);
holder.setText(R.id.tv_daozhang, strings[2]);
}
};//给listview中设置数据
mListView.setAdapter(mSettlementListAdapter);
//设置分隔线
mListView.setDivider(new ColorDrawable(Color.rgb(243, 243, 243)));//#F3F3F3
mListView.setDividerHeight(16);
//点击listview中的子控件跳转到对应的子界面
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(SettlementActivity.this, SettlementDetailActivity.class);
intent.putExtra("name", list.get(position)[0]);
intent.putExtra("oddNum", list.get(position)[3]);
intent.putExtra("start", list.get(position)[4]);
intent.putExtra("end", list.get(position)[5]);
intent.putExtra("jiaoyi", list.get(position)[1]);
intent.putExtra("daozhang", list.get(position)[2]);
startActivity(intent);
}
});
}
4.6其他相关设置
在initData（方法中）
pullablescrollview.smoothScrollTo(0, 0);//默认listview会滑倒顶部位置，这里设置为ScrollView的开始位置
数据刷新时，集合数据清空，重新进行网络请求
@Override
protected void onResume() {
super.onResume();
list.clear();
request(0, 0, 1, 0);
}
