Osmdroid无法显示来自zip文件的离线地图

问题描述

我已经尝试了好几个小时才能将离线地图加载到zip文件中，但是无法 我有离线地图，我将其放在sdcard的osmdroid文件夹中。
压缩包含folderMapName-> zoomlevel-> x-> y.jpg 即使我从日志中得知磁贴不存在
2020-10-05 18:09:33.981 17548-18405/com.example.targetchaser D/OsmDroid: MapTileProviderBase.mapTileRequestFailed(): /7/74/54

即使此特定图块确实存在，

注意我正在使用osmdroid版本6.1.8。

这是负责地图的片段代码

package com.example.targetchaser.special

import android.os.Bundle
import android.os.Environment
import android.os.StrictMode
import android.preference.PreferenceManager
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.lifecycle.ViewModelProvider
import com.example.targetchaser.R
import org.osmdroid.api.IMapController
import org.osmdroid.config.Configuration
import org.osmdroid.tileprovider.constants.OpenStreetMapTileProviderConstants
import org.osmdroid.tileprovider.tilesource.ITileSource
import org.osmdroid.tileprovider.tilesource.TileSourceFactory
import org.osmdroid.tileprovider.tilesource.XYTileSource
import org.osmdroid.tileprovider.util.CloudmadeUtil.DEBUGMODE
import org.osmdroid.util.GeoPoint
import org.osmdroid.views.MapView
import timber.log.Timber
import java.io.File
import java.util.*


class MapFragment : Fragment() {
    private lateinit var map: MapView

    companion object {
        fun newInstance() = MapFragment()
    }

    private lateinit var viewModel: MapViewModel

    override fun onCreateView(
        inflater: LayoutInflater,container: ViewGroup?,savedInstanceState: Bundle?
    ): View? {
        val view = inflater.inflate(R.layout.map_fragment,container,false)
        map = view.findViewById(R.id.map)
        return view
    }

    override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)
        Configuration.getInstance()
            .load(requireContext(),PreferenceManager.getDefaultSharedPreferences(requireContext()))
        Configuration.getInstance().isDebugMapView = true
        Configuration.getInstance().isDebugMode = true
        Configuration.getInstance().isDebugTileProviders = true
        Timber.d("configuring the map")
        val policy =
            StrictMode.ThreadPolicy.Builder().permitAll().build()
        StrictMode.setThreadPolicy(policy)
        viewModel = ViewModelProvider(this).get(MapViewModel::class.java)
        initializeMap()
    }

    private fun initializeMap() {
        DEBUGMODE = true
        val tileSource: ITileSource = XYTileSource(
            "mapName",7,12,256,".jpg",null
        )
        map.setUseDataConnection(false)

        map.setTileSource(tileSource)
        // map.setTileSource(TileSourceFactory.MAPNIK);
        setStartingPoint()
    }

    private fun setStartingPoint() {
        val mapController = map.controller;
        mapController.setZoom(7.0)
        val startPoint =  GeoPoint(29.818244186438754,31.011825548219626)
        mapController.setCenter(startPoint);
    }

    override fun onPause() {
        super.onPause()
        map.onPause()
    }

    override fun onResume() {
        super.onResume()
        map.onResume()
    }

}

解决方法

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