save/load/removeを追加 Impl WIP

source/src/main/java/one/nem/lacerta/source/file/FileManager.java

@@ -16,7 +16,7 @@ public interface FileManager {
     void createDir(String dirName);
     void removeDir(String dirName);
 
-    void saveBitmap(Path path, Bitmap bitmap);
+    void saveBitmapAtCurrent(Bitmap bitmap, String fileName);
     Bitmap loadBitmap(Path path);
     void removeBitmap(Path path);
 

source/src/main/java/one/nem/lacerta/source/file/impl/FileManagerImpl.java

@@ -2,6 +2,7 @@ package one.nem.lacerta.source.file.impl;
 
 import android.graphics.Bitmap;
 
+import java.io.File;
 import java.io.IOException;
 import java.nio.file.DirectoryStream;
 import java.nio.file.Files;
@@ -84,7 +85,8 @@ public class FileManagerImpl implements FileManager {
     }
 
     @Override
-    public void saveBitmap(Path path, Bitmap bitmap) {
+    public void saveBitmapAtCurrent(Bitmap bitmap, String fileName) {
+        this.currentDir
     }
 
     @Override