增加realm 在离线地图中的使用
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squallzhjch
95
app/src/main/java/com/navinfo/omqs/tools/FileManager.kt
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95
app/src/main/java/com/navinfo/omqs/tools/FileManager.kt
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package com.navinfo.omqs.tools
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import android.content.Context
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import android.util.Log
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import com.navinfo.collect.library.data.entity.OfflineMapCityBean
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import com.navinfo.omqs.Constant
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import java.io.File
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class FileManager {
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companion object {
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//初始化数据文件夹
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fun initRootDir(context:Context){
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// 在SD卡创建项目目录
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val sdCardPath = context.getExternalFilesDir(null)
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sdCardPath?.let {
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Constant.ROOT_PATH = sdCardPath.absolutePath
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Constant.MAP_PATH = Constant.ROOT_PATH + "/map/"
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Constant.OFFLINE_MAP_PATH = Constant.MAP_PATH + "offline/"
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val file = File(Constant.MAP_PATH)
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if (!file.exists()) {
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file.mkdirs()
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Constant.DATA_PATH = Constant.ROOT_PATH + "/data/"
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with(File(Constant.MAP_PATH)) {
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if (!this.exists()) this.mkdirs()
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}
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with(File(Constant.DATA_PATH)) {
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if (!this.exists()) this.mkdirs()
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}
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}else{
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Constant.DATA_PATH = Constant.ROOT_PATH + "/data/"
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}
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}
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}
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/**
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* 检查离线地图文件
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*/
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suspend fun checkOfflineMapFileInfo(cityBean: OfflineMapCityBean) {
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//访问离线地图文件夹
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val fileDir = File("${Constant.OFFLINE_MAP_PATH}")
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//如果连本地文件夹还没有，就不用修改任何数据了
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if (!fileDir.exists()) {
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return
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}
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//访问离线地图临时下载文件夹
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val fileTempDir = File("${Constant.OFFLINE_MAP_PATH}download/")
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//是否有一份.map文件了
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var mapFile: File? = null
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//文件夹里文件挨个访问
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for (item in fileDir.listFiles()) {
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//先找到对应的省市文件，例如：540000_西藏自治区_20230401195018.map",以id开头
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if (item.isFile && item.name.startsWith(cityBean.id)) {
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//如果本地文件与从网络获取到版本号一致，表示这个文件已经下载完毕,不用处理了
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if (item.name.contains("_${cityBean.version}.map")) {
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cityBean.status = OfflineMapCityBean.DONE
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return
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}
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//文件存在，版本号不对应，留给下面流程处理
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mapFile = item
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break
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}
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}
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//临时下载文件夹
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if (fileTempDir.exists()) {
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for (item in fileTempDir.listFiles()) {
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//先找到对应的省市文件，例如：540000_20230401195018",以id开头
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if (item.isFile && item.name.startsWith(cityBean.id)) {
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//如果本地文件与从网络获取到版本号一致，表示这个文件已经在下载列表中
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if (item.name == "${cityBean.id}_${cityBean.version}") {
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//如果这个临时文件的大小和下载大小是一致的，说明已经下载完了，但是在下载环节没有更名移动成功，需要重命名和移动文件夹
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if (item.length() == cityBean.fileSize) {
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//移动更名文件后删除旧数据，修改状态
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if (item.renameTo(File("${Constant.OFFLINE_MAP_PATH}${cityBean.fileName}"))) {
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//删除旧版本数据
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mapFile?.delete()
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cityBean.status = OfflineMapCityBean.DONE
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return
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}
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} else { // 临时文件大小和目标不一致，说明下载了一半
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cityBean.status = OfflineMapCityBean.PAUSE
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cityBean.currentSize = item.length()
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return
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}
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} else { //虽然省市id开头一致，但是版本号不一致，说明之前版本下载了一部分，现在要更新了，原来下载的文件直接删除
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cityBean.status = OfflineMapCityBean.UPDATE
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item.delete()
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return
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}
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break
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}
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}
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}
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}
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}
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}
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@@ -0,0 +1,57 @@
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package com.navinfo.omqs.tools
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import android.app.Application
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import com.navinfo.collect.library.data.entity.OfflineMapCityBean
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import com.navinfo.omqs.Constant
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import io.realm.Realm
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import io.realm.RealmConfiguration
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import io.realm.RealmModel
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import io.realm.Sort
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import io.realm.kotlin.where
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.newSingleThreadContext
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import java.io.File
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class RealmCoroutineScope(context: Application) :
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CoroutineScope by CoroutineScope(newSingleThreadContext("RealmThread")) {
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lateinit var realm: Realm
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init {
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launch {
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Realm.init(context)
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val password = "password".encodeToByteArray().copyInto(ByteArray(64))
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// 1110000011000010111001101110011011101110110111101110010011001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
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// Log.d("", "密码是： ${BigInteger(1, password).toString(2).padStart(64, '0')}")
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val config = RealmConfiguration.Builder()
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.directory(File(Constant.DATA_PATH))
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.name("HDData")
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// .encryptionKey(password)
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.build()
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Realm.setDefaultConfiguration(config)
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realm = Realm.getDefaultInstance()
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}
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}
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suspend fun getOfflineCityList(): List<OfflineMapCityBean> {
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var list: List<OfflineMapCityBean> = mutableListOf()
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realm.executeTransaction {
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val objects = realm.where<OfflineMapCityBean>().findAll().sort("id", Sort.ASCENDING)
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list = realm.copyFromRealm(objects)
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}
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return list
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}
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suspend fun insertOrUpdate(objects: Collection<RealmModel?>?) {
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realm.executeTransaction {
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realm.insertOrUpdate(objects)
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}
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}
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suspend fun insertOrUpdate(realmModel: RealmModel?) {
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realm.executeTransaction {
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realm.insertOrUpdate(realmModel)
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}
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}
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}
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