cacheFile:首次下没有返回下载内容;ACache:saveTime=0视为永久保存

app/src/main/java/io/legado/app/help/CacheManager.kt

@@ -29,10 +29,7 @@ object CacheManager {
     }
 
     fun putString2File(key: String, value: String, saveTime: Int = 0) {
-        if (saveTime == 0) {
-            //不设置过期时间
-            ACache.get(appCtx).put(key, value)
-        } else  ACache.get(appCtx).put(key, value, saveTime)
+        ACache.get(appCtx).put(key, value, saveTime)
     }
     
     fun get(key: String): String? {

app/src/main/java/io/legado/app/utils/ACache.kt

@@ -109,7 +109,7 @@ class ACache private constructor(cacheDir: File, max_size: Long, max_count: Int)
      * @param saveTime 保存的时间，单位：秒
      */
     fun put(key: String, value: String, saveTime: Int) {
-        put(key, Utils.newStringWithDateInfo(saveTime, value))
+        if (saveTime == 0) put(key, value) else put(key, Utils.newStringWithDateInfo(saveTime, value))
     }
 
     /**
@@ -245,7 +245,7 @@ class ACache private constructor(cacheDir: File, max_size: Long, max_count: Int)
      * @param saveTime 保存的时间，单位：秒
      */
     fun put(key: String, value: ByteArray, saveTime: Int) {
-        put(key, Utils.newByteArrayWithDateInfo(saveTime, value))
+        if (saveTime == 0) put(key, value) else put(key, Utils.newByteArrayWithDateInfo(saveTime, value))
     }
 
     /**