管灌系统巡查员智能手机App
zuoxiao
2024-09-09 f163344ffeb1e699fa1a2dfb8a70055bb1b9be7e
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package com.dayu.pipirrapp.fragment;
 
import android.content.Context;
import android.content.Intent;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.ValueCallback;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import android.webkit.WebResourceResponse;
import android.webkit.WebView;
import android.webkit.WebViewClient;
 
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
 
import com.dayu.pipirrapp.databinding.FragmentMapBinding;
import com.dayu.pipirrapp.js.MyWebViewInterface;
import com.dayu.pipirrapp.observer.MapFragmenObserver;
import com.dayu.pipirrapp.service.MyLocationService;
import com.dayu.pipirrapp.utils.MapJpgUtils;
import com.dayu.pipirrapp.utils.MyLog;
import com.dayu.pipirrapp.utils.WebViewUtils;
 
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Random;
 
/**
 * author: zuo
 * Date: 2023/12/20
 * Time: 10:16
 * 备注:地图页
 */
public class MapFragment extends BaseFragment {
 
    FragmentMapBinding binding;
    LocationManager locationManager;
 
    WebView mWebView;
 
    @Override
    public void onAttach(@NonNull Context context) {
        super.onAttach(context);
        requireActivity().getLifecycle().addObserver(new MapFragmenObserver());
    }
 
    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
 
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
 
        binding = FragmentMapBinding.inflate(inflater, container, false);
        Log.i("MapFragment", "onCreateView");
        mWebView = binding.webView;
        mWebView = WebViewUtils.initWebView(mWebView);
        MyWebViewInterface myWebViewInterface = new MyWebViewInterface(MapFragment.this);
        mWebView.addJavascriptInterface(myWebViewInterface, "Android");
        mWebView.loadUrl("file:///android_asset/index.html");
 
        initView();
        //开启定位
        Intent location = new Intent(this.getActivity(), MyLocationService.class);
        location.putExtra("isSingle", false);
        this.getActivity().startService(location);
        return binding.getRoot();
    }
 
    /**
     * 添加标注点
     */
    public void addMarker() {
        Random random = new Random();
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("[");
 
        // 中国经纬度范围
        double minLongitude = 73.43;
        double maxLongitude = 135.05;
        double minLatitude = 3.52;
        double maxLatitude = 53.57;
 
        for (int i = 0; i < 1000; i++) {
            stringBuilder.append("[");
            // 生成随机经度
            double longitude = minLongitude + (maxLongitude - minLongitude) * random.nextDouble();
            stringBuilder.append(longitude);
            stringBuilder.append(",");
            // 生成随机纬度
            double latitude = minLatitude + (maxLatitude - minLatitude) * random.nextDouble();
            stringBuilder.append(latitude);
            stringBuilder.append(",\"237取水口\"],");
        }
        stringBuilder.append("[116.417854,39.921988,\"235取水口\"]]");
        String jsonData = stringBuilder.toString().replace("\\", "\\\\").replace("\"", "\\\"");
//        String jsonData = "[[116.417854,39.921988,\"235取水口\"],[116.406605,39.921585,\"237取水口\"],[116.412222,39.912345,\"236取水口\"]]";
        Log.i("mWebView", "addMarker????????????" + jsonData);
        mWebView.evaluateJavascript("javascript:addMarker(\"" + jsonData + "\")", new ValueCallback<String>() {
            @Override
            public void onReceiveValue(String value) {
                Log.i("mWebView", "addMarker!!!!!!!!!" + value);
            }
        });
    }
 
 
    @Override
    public void onResume() {
        super.onResume();
        mWebView.onResume(); // 恢复 WebView,能正常执行网页的响应
 
    }
 
    @Override
    public void onPause() {
        super.onPause();
        //
        mWebView.onPause(); // 通过 onPause 动作通知内核暂停所有的动作,如 DOM 的解析、plugin 的执行、JavaScript 执行等
 
    }
 
    @Override
    public void onDestroy() {
        super.onDestroy();
        ((ViewGroup) mWebView.getParent()).removeView(mWebView);
        mWebView.destroy(); // 当 Activity 要 destroy 时,应先将 WebView 移除,再 destroy 掉
    }
 
 
    void initView() {
        //跳转到指定位置
        binding.flyBtn.setOnClickListener(v -> {
            mWebView.evaluateJavascript("javascript:locationOverLay(116.399565,39.89432)", value -> {
            });
        });
        mWebView.setWebViewClient(new WebViewClient() {
            @Override
            public WebResourceResponse  shouldInterceptRequest(WebView view, WebResourceRequest request) {
                String url = request.getUrl().toString();
                // 检查本地缓存
                File cachedTile = MapJpgUtils.getInsatance(MapFragment.this.getContext()).getCachedTile(url);
                if (cachedTile != null && cachedTile.exists()) {
                    // 判断缓存是否过期
                    if (!MapJpgUtils.getInsatance(MapFragment.this.getContext()).isCacheExpired(cachedTile)) {
                        try {
                            // 从缓存加载瓦片
                            return new WebResourceResponse("image/jpg", "utf-8", new FileInputStream(cachedTile));
                        } catch (FileNotFoundException e) {
                            e.printStackTrace();
                        }
                    }
                }
 
                return super.shouldInterceptRequest(view, request);
            }
 
            @Override
            public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
                super.onReceivedError(view, request, error);
                // 捕获加载过程中发生的错误
                int errorCode = error.getErrorCode();
                String description = error.getDescription().toString();
                String failingUrl = request.getUrl().toString();
                Log.e("setWebViewClient", "errorCode:" + errorCode + ">>>>description:" + description + ">>>>failingUrl:" + failingUrl);
                // 处理错误,例如显示错误页面或提示用户
                // view.loadUrl("file:///android_asset/error.html");
            }
 
            @Override
            public void onReceivedHttpError(WebView view, WebResourceRequest request, WebResourceResponse errorResponse) {
                super.onReceivedHttpError(view, request, errorResponse);
                // 捕获HTTP错误(如404, 500等)
                int statusCode = errorResponse.getStatusCode();
                String description = errorResponse.getReasonPhrase();
                Log.e("setWebViewClient", "statusCode:" + statusCode + ">>>>description:" + description);
                // 根据HTTP状态码处理错误
            }
        });
    }
 
 
    public void showWaterIntakeDetail(String data) {
        MyLog.i(data);
        binding.bottomLL.setVisibility(View.VISIBLE);
    }
 
 
    public void closeWaterIntakeDetail() {
        binding.bottomLL.setVisibility(View.GONE);
    }
 
}