Clear temp dir

app/src/main/java/com/hippo/ehviewer/EhApplication.java

@@ -110,7 +110,7 @@ public class EhApplication extends SceneApplication implements Thread.UncaughtEx
         }
 
         CommonOperations.ensureNoMediaFile(Settings.getDownloadLocation());
-
+        clearTempDir();
         update();
 
         // Update version code
@@ -126,6 +126,17 @@ public class EhApplication extends SceneApplication implements Thread.UncaughtEx
         }
     }
 
+    private void clearTempDir() {
+        File dir = AppConfig.getTempDir();
+        if (null != dir) {
+            FileUtils.deleteContent(dir);
+        }
+        dir = AppConfig.getExternalTempDir();
+        if (null != dir) {
+            FileUtils.deleteContent(dir);
+        }
+    }
+
     private void update() {
         int version = Settings.getVersionCode();
         if (version < 52) {