Added comments and summaries to CopyAssets.java

app/src/main/java/com/MartyrPher/smapiandroidinstaller/CopyAssets.java

@@ -11,32 +11,49 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 
+/**
+ * Allows assets from the apk to be copied to a local folder to be worked with
+ */
 public class CopyAssets {
 
+    //TAG for debugging purposes
     private final static String TAG = "CopyAssets";
 
+    //MainActivity context
     private final Context context;
 
+    /**
+     * Constructor that sets the context
+     * @param appContext = The activities context
+     */
     public CopyAssets(Context appContext)
     {
         this.context = appContext;
     }
 
-    //Copies the needed files from the APK to a local directory so they can be used
+    /**
+     * Copies the needed files from the APK to a local directory so they can be used
+     * @param asset = The asset to copy
+     * @param dir = The directory to copy the asset to
+     */
     public void copyAssets(String asset, String dir) {
         AssetManager assetManager = context.getAssets();
         String[] files = null;
         File dest = new File(Environment.getExternalStorageDirectory() + dir);
-        if(!dest.exists())
-        {
+
+        //Check is the directory exists
+        if(!dest.exists()) {
             dest.mkdir();//directory is created;
         }
+
+        //Try to get the list of assets
         try {
             files = assetManager.list(asset);
         } catch (IOException e) {
             Log.e(TAG, "Failed to get asset file list.", e);
         }
-        Log.e(TAG, "File Length: " + files.length);
+
+        //Open the asset and copy it
         if (files != null) for (String filename : files) {
             InputStream in = null;
             OutputStream out = null;
@@ -67,6 +84,12 @@ public class CopyAssets {
         }
     }
 
+    /**
+     * Short method that copies the files using an InputStream and OutputStream
+     * @param in = The input stream
+     * @param out = The output stream
+     * @throws IOException if one of the streams fail
+     */
     private void copyFile(InputStream in, OutputStream out) throws IOException {
         byte[] buffer = new byte[1024];
         int read;