import 'dart:convert';
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import 'package:flutter/widgets.dart';
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import 'package:fluttertoast/fluttertoast.dart';
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import 'package:locations/api/http.dart' as http;
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import 'package:locations/utils/ad_util.dart';
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import 'package:locations/utils/user_util.dart';
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import 'package:webview_flutter/platform_interface.dart';
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import 'package:webview_flutter/webview_flutter.dart';
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class JavascriptInterface {
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final BuildContext context;
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final WebViewController? _controller;
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JavascriptInterface(
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BuildContext this.context, WebViewController? this._controller);
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Set<JavascriptChannel> getInterfaces() {
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List<JavascriptChannel> list = [];
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list.add(JavascriptChannel(
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name: 'yestv',
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onMessageReceived: (JavascriptMessage message) {
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print("onMessageReceived");
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var data = jsonDecode(message.message);
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String method = data["method"];
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var params = data["params"];
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String? _callback = data["callback"];
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switch (method) {
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case "toast":
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toast(params);
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break;
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case "getUid":
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getUid(params, _callback);
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break;
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case "getRequestBaseParams":
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getBaseRequestParams(params, _callback);
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break;
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case "showRewardVideoAd":
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showRewardVideoAd(_callback);
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break;
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case "showLoading":
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showLoading();
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break;
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case "hideLoading":
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hideLoading();
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break;
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case "finishPage":
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finishPage();
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break;
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}
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}));
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return list.toSet();
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}
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callback(String method, var params) {
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_controller!.runJavascript("$method('$params')");
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_controller!.runJavascript("delete $method");
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}
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//获取用户ID
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getUid(var params, String? callbackName) {
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if (callbackName != null) {
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UserUtil.getUid().then((value) {
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callback(callbackName, value != null ? value.toString() : "");
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});
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}
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}
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//toast
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toast(params) {
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if (params != null && params["msg"] != null) {
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Fluttertoast.showToast(msg: params["msg"]);
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}
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}
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//获取基本的网络请求参数
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getBaseRequestParams(var params, String? callbackName) {
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var ps = {};
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if (params != null) {
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ps.addAll(params);
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}
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http.HttpUtil.getBaseParams(params).then((value) {
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String result = jsonEncode(value);
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if (callbackName != null) {
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callback(callbackName, result);
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}
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});
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}
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//展示激励视频
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showRewardVideoAd(String? callbackName) {
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AdUtil.getAdInfo(AdPosition.vipReward).then((value) {
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AdUtil.loadReward(value, (success, msg) {
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if (success) {
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//成功
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if (callbackName != null) {
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callback(callbackName, true);
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}
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} else {
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if (callbackName != null) {
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callback(callbackName, false);
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}
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}
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});
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});
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}
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showLoading() {
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http.showLoading(context);
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}
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hideLoading() {
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Navigator.of(context).pop();
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}
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//结束页面
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finishPage() {
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Navigator.of(context).pop();
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}
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//保存图片
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saveImg(String url) {
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//TODO
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}
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//分享图片
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shareImg(String url, int type) {
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//TODO
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}
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}
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