optimize logo cache

Author: lizongying

HISTORY.md

@@ -1,5 +1,13 @@
 ## 更新日誌
 
+### v1.3.8.17-kitkat
+
+* 優化LOGO緩存
+
+### v1.3.8.17
+
+* 優化LOGO緩存
+
 ### v1.3.8.16-kitkat
 
 * 增加LOGO緩存

README.md

@@ -86,7 +86,6 @@ adb install my-tv-0.apk
 * 無效的頻道？
 * 如果上次播放頻道不在收藏？
 * 當list為空，顯示group/空group不顯示？
-* 默認頻道菜單顯示
 * 遠程配置使用webView
 
 ## 讚賞

app/src/main/java/com/lizongying/mytv0/ImageHelper.kt

@@ -10,20 +10,21 @@ import com.lizongying.mytv0.requests.HttpClient
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import java.io.File
+import java.util.concurrent.ConcurrentHashMap
 
 
 class ImageHelper(private val context: Context) {
-    val cacheDir = context.cacheDir
-    val files: MutableMap<String, File> = mutableMapOf()
+    private val cacheDir = context.cacheDir
+
+    private var dir: File = File(cacheDir, LOGO)
+    private val files = ConcurrentHashMap<String, File>()
 
     init {
-        val dir = File(cacheDir, LOGO)
         if (!dir.exists()) {
             dir.mkdir()
         }
         dir.listFiles()?.forEach { file ->
-            val name = file.name.substringBeforeLast(".")
-            files[name] = file
+            files[file.name] = file
         }
     }
 
@@ -62,9 +63,9 @@ class ImageHelper(private val context: Context) {
         }
 
         for (url in urlList) {
-            val ext = url.substringBeforeLast("?").substringAfterLast(".")
-            val file = File(cacheDir, "$LOGO/$key.$ext")
+            val file = File(cacheDir, "$LOGO/$key")
             if (downloadImage(url, file)) {
+                files[file.name] = file
                 Log.i(TAG, "image download success ${file.absolutePath}")
                 break
             }
@@ -101,6 +102,13 @@ class ImageHelper(private val context: Context) {
         }
     }
 
+    fun clearImage() {
+        val dir = File(cacheDir, LOGO)
+        if (dir.exists()) {
+            dir.deleteRecursively()
+        }
+    }
+
     companion object {
         const val TAG = "ImageHelper"
         const val LOGO = "logo"

app/src/main/java/com/lizongying/mytv0/MainViewModel.kt

@@ -7,6 +7,7 @@ import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.google.gson.JsonSyntaxException
+import com.lizongying.mytv0.ImageHelper
 import com.lizongying.mytv0.MyTVApplication
 import com.lizongying.mytv0.R
 import com.lizongying.mytv0.SP
@@ -49,6 +50,8 @@ class MainViewModel : ViewModel() {
     private lateinit var cacheEPG: File
     private var epgUrl = SP.epg
 
+    private lateinit var imageHelper: ImageHelper
+
     val sources = Sources()
 
     private val _channelsOk = MutableLiveData<Boolean>()
@@ -99,6 +102,9 @@ class MainViewModel : ViewModel() {
     }
 
     fun init(context: Context) {
+        val application = context.applicationContext as MyTVApplication
+        imageHelper = application.imageHelper
+
         groupModel.addTVListModel(TVListModel("我的收藏", 0))
         groupModel.addTVListModel(TVListModel("全部頻道", 1))
 
@@ -121,7 +127,7 @@ class MainViewModel : ViewModel() {
         try {
             str2Channels(cacheChannels)
         } catch (e: Exception) {
-            e.printStackTrace()
+            Log.e(TAG, "init", e)
             cacheFile!!.deleteOnExit()
             R.string.channel_read_error.showToast()
         }
@@ -140,34 +146,36 @@ class MainViewModel : ViewModel() {
             }
         }
 
-        val application = context.applicationContext as MyTVApplication
-        val imageHelper = application.imageHelper
+        initialized = true
 
-        viewModelScope.launch {
-            for (tvModel in listModel) {
-                var name = tvModel.tv.name
-                if (name.isEmpty()) {
-                    name = tvModel.tv.title
-                }
-                val url = tvModel.tv.logo
-                var urls =
-                    listOf(
-                        "https://live.fanmingming.cn/tv/$name.png"
-                    ) + getUrls("https://raw.githubusercontent.com/fanmingming/live/main/tv/$name.png")
-                if (url.isNotEmpty()) {
-                    urls = (getUrls(url) + urls).distinct()
-                }
+        _channelsOk.value = true
+    }
 
-                imageHelper.preloadImage(
-                    name,
-                    urls,
-                )
-            }
+    suspend fun preloadLogo() {
+        if (!this::imageHelper.isInitialized) {
+            Log.w(TAG, "imageHelper is not initialized")
+            return
         }
 
-        initialized = true
+        for (tvModel in listModel) {
+            var name = tvModel.tv.name
+            if (name.isEmpty()) {
+                name = tvModel.tv.title
+            }
+            val url = tvModel.tv.logo
+            var urls =
+                listOf(
+                    "https://live.fanmingming.cn/tv/$name.png"
+                ) + getUrls("https://raw.githubusercontent.com/fanmingming/live/main/tv/$name.png")
+            if (url.isNotEmpty()) {
+                urls = (getUrls(url) + urls).distinct()
+            }
 
-        _channelsOk.value = true
+            imageHelper.preloadImage(
+                name,
+                urls,
+            )
+        }
     }
 
     suspend fun readEPG(input: InputStream): Boolean = withContext(Dispatchers.IO) {
@@ -200,7 +208,7 @@ class MainViewModel : ViewModel() {
         }
     }
 
-    suspend fun readEPG(str: String): Boolean = withContext(Dispatchers.IO) {
+    private suspend fun readEPG(str: String): Boolean = withContext(Dispatchers.IO) {
         try {
             val res: Map<String, List<EPG>> = gson.fromJson(str, typeEPGMap)
 
@@ -553,6 +561,10 @@ class MainViewModel : ViewModel() {
 
         groupModel.setChange()
 
+        viewModelScope.launch {
+            preloadLogo()
+        }
+
         return true
     }
 

app/src/main/java/com/lizongying/mytv0/SettingFragment.kt

@@ -286,6 +286,9 @@ class SettingFragment : Fragment() {
 
         val context = requireActivity()
         val mainActivity = (activity as MainActivity)
+        val application = context.applicationContext as MyTVApplication
+        val imageHelper = application.imageHelper
+
         viewModel = ViewModelProvider(context)[MainViewModel::class.java]
 
         binding.switchDisplaySeconds.setOnCheckedChangeListener { _, isChecked ->
@@ -306,6 +309,8 @@ class SettingFragment : Fragment() {
             SP.configAutoLoad = SP.DEFAULT_CONFIG_AUTO_LOAD
             SP.proxy = SP.DEFAULT_PROXY
 
+            imageHelper.clearImage()
+
             // TODO update player
             SP.softDecode = SP.DEFAULT_SOFT_DECODE
 

version.json

@@ -1 +1 @@
-{"version_code": 16975888, "version_name": "v1.3.8.16-kitkat"}
+{"version_code": 16975889, "version_name": "v1.3.8.17-kitkat"}