Migrate covers to external files dir. Fix #647

app/build.gradle

@@ -38,7 +38,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 25
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        versionCode 18
+        versionCode 19
         versionName "0.4.2"
 
         buildConfigField "String", "COMMIT_COUNT", "\"${getCommitCount()}\""

app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt

@@ -20,7 +20,7 @@ class CoverCache(private val context: Context) {
     /**
      * Cache directory used for cache management.
      */
-    private val cacheDir: File = File(context.externalCacheDir, "cover_disk_cache")
+    private val cacheDir = context.getExternalFilesDir("covers")
 
     /**
      * Returns the cover from cache.

app/src/main/java/eu/kanade/tachiyomi/ui/main/ChangelogDialogFragment.kt

@@ -39,6 +39,18 @@ class ChangelogDialogFragment : DialogFragment() {
                     // Delete internal chapter cache dir.
                     File(context.cacheDir, "chapter_disk_cache").deleteRecursively()
                 }
+                if (oldVersion < 19) {
+                    // Move covers to external files dir.
+                    val oldDir = File(context.externalCacheDir, "cover_disk_cache")
+                    if (oldDir.exists()) {
+                        val destDir = context.getExternalFilesDir("covers")
+                        if (destDir != null) {
+                            oldDir.listFiles().forEach {
+                                it.renameTo(File(destDir, it.name))
+                            }
+                        }
+                    }
+                }
             }
         }
     }