feat: 缓存清理开放

painld6 · painld6 · commit a8d926ea043f · 2021-08-18T10:46:27.000+08:00
diff --git a/library/src/main/java/com/opensource/svgaplayer/SVGACache.kt b/library/src/main/java/com/opensource/svgaplayer/SVGACache.kt
@@ -1,19 +1,33 @@
 package com.opensource.svgaplayer
 
 import android.content.Context
+import com.opensource.svgaplayer.utils.log.LogUtils
 import java.io.File
 import java.net.URL
 import java.security.MessageDigest
 
-
+/**
+ * SVGA 缓存管理
+ */
 object SVGACache {
     enum class Type {
         DEFAULT,
         FILE
     }
 
+    private const val TAG = "SVGACache"
     private var type: Type = Type.DEFAULT
     private var cacheDir: String = "/"
+        get() {
+            if (field != "/") {
+                val dir = File(field)
+                if (!dir.exists()) {
+                    dir.mkdirs()
+                }
+            }
+            return field
+        }
+
 
     fun onCreate(context: Context?) {
         onCreate(context, Type.DEFAULT)
@@ -27,22 +41,54 @@ object SVGACache {
         this.type = type
     }
 
-//    fun clearCache(context: Context?){
-//        context ?: return
-//        cacheDir = "${context.cacheDir.absolutePath}/svga/"
-//        File(cacheDir).takeIf { it.exists() }?.delete()
-//    }
+    /**
+     * 清理缓存
+     */
+    fun clearCache() {
+        if (!isInitialized()) {
+            LogUtils.error(TAG, "SVGACache is not init!")
+            return
+        }
+        SVGAParser.threadPoolExecutor.execute {
+            clearDir(cacheDir)
+            LogUtils.info(TAG, "Clear svga cache done!")
+        }
+    }
+
+    // 清除目录下的所有文件
+    private fun clearDir(path: String) {
+        try {
+            val dir = File(path)
+            dir.takeIf { it.exists() }?.let { parentDir ->
+                parentDir.listFiles()?.forEach { file ->
+                    if (!file.exists()) {
+                        return@forEach
+                    }
+                    if (file.isDirectory) {
+                        clearDir(file.absolutePath)
+                    }
+                    file.delete()
+                }
+            }
+        } catch (e: Exception) {
+            LogUtils.error(TAG, "Clear svga cache path: $path fail", e)
+        }
+    }
 
     fun isInitialized(): Boolean {
-        return "/" != cacheDir&&File(cacheDir).exists()
+        return "/" != cacheDir && File(cacheDir).exists()
     }
 
     fun isDefaultCache(): Boolean = type == Type.DEFAULT
 
     fun isCached(cacheKey: String): Boolean {
-        return (if (isDefaultCache()) buildCacheDir(cacheKey) else buildSvgaFile(
-                cacheKey
-        )).exists()
+        return if (isDefaultCache()) {
+            buildCacheDir(cacheKey)
+        } else {
+            buildSvgaFile(
+                    cacheKey
+            )
+        }.exists()
     }
 
     fun buildCacheKey(str: String): String {
