diff --git a/src/android/CameraLauncher.java b/src/android/CameraLauncher.java
index 3a04de8..d53d2a5 100644
--- a/src/android/CameraLauncher.java
+++ b/src/android/CameraLauncher.java
@@ -1,8 +1,12 @@
 package org.geneanet.customcamera;
 
 import XXX_NAME_CURRENT_PACKAGE_XXX.CameraActivity;
-import org.apache.cordova.CordovaPlugin;
+
+import android.content.Intent;
+import android.util.Base64;
+
 import org.apache.cordova.CallbackContext;
+import org.apache.cordova.CordovaPlugin;
 import org.apache.cordova.PluginResult;
 import org.json.JSONArray;
 import org.json.JSONException;
@@ -15,124 +19,115 @@ import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.IOException;
 
-import android.content.Intent;
-import android.util.Base64;
-
 public class CameraLauncher extends CordovaPlugin {
 
-    protected CallbackContext callbackContext;
+  protected CallbackContext callbackContext;
 
-    protected static final int RESULT_SUCCESS = 1;
-    protected static final int RESULT_ERROR = 2;
-    protected static final int RESULT_BACK = 3;
+  protected static final int RESULT_SUCCESS = 1;
+  protected static final int RESULT_ERROR = 2;
+  protected static final int RESULT_BACK = 3;
 
-    protected static final int REQUEST_CODE = 88224646;
+  protected static final int REQUEST_CODE = 88224646;
 
-    public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException {
-        if (action.equals("startCamera")) {
-            this.callbackContext = callbackContext;
+  /**
+   * Execute the plugin.
+   * 
+   * @param action Action executed.
+   * @param args Parameters for the plugin.
+   * @param callbackContext Context of callback.
+   * @return boolean
+   * @throws JSONException Exception JSON if error in generateError.
+   */
+  public boolean execute(String action, JSONArray args,
+      CallbackContext callbackContext) throws JSONException {
+    if (action.equals("startCamera")) {
+      this.callbackContext = callbackContext;
 
-            Intent intent = new Intent(this.cordova.getActivity(), CameraActivity.class);
+      Intent intent = new Intent(this.cordova.getActivity(),
+          CameraActivity.class);
 
-            if (args.getString(0) != "null") {
-                byte[] imgBackgroundBase64;
-                try {
-                    imgBackgroundBase64 = Base64.decode(args.getString(0), Base64.NO_WRAP);
-                } catch (IllegalArgumentException e) {
-                    this.callbackContext.error(
-                        generateError(
-                            CameraLauncher.RESULT_ERROR,
-                            "Error decode base64 picture."
-                        )
-                    );
-
-                    return false;
-                }
-                TransferBigData.setImgBackgroundBase64(imgBackgroundBase64);
-            }
-
-            intent.putExtra("miniature", args.getBoolean(1));
-            intent.putExtra("saveInGallery", args.getBoolean(2));
-            intent.putExtra("cameraBackgroundColor", args.getString(3));
-            intent.putExtra("cameraBackgroundColorPressed", args.getString(4));
-            if (args.getInt(5) >= 0 && args.getInt(5) <= 100) {
-                intent.putExtra("quality", args.getInt(5));
-            }
-
-            cordova.startActivityForResult((CordovaPlugin) this, intent, CameraLauncher.REQUEST_CODE);
-
-            return true;
-        }
-
-        return false;
-    }
-
-    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
-        if (requestCode == CameraLauncher.REQUEST_CODE) {
-            switch (resultCode)
-            {
-                case CameraLauncher.RESULT_ERROR:
-                    this.callbackContext.error(
-                        generateError(
-                            CameraLauncher.RESULT_ERROR,
-                            intent.getStringExtra("errorMessage")
-                        )
-                    );
-                    break;
-                case CameraLauncher.RESULT_BACK:
-                    this.callbackContext.error(
-                        generateError(
-                            CameraLauncher.RESULT_BACK,
-                            "Error because back camera."
-                        )
-                    );
-                    break;
-                case CameraLauncher.RESULT_SUCCESS:
-                    try {
-                        byte[] output = Base64.encode(TransferBigData.getImgTaken(), Base64.NO_WRAP);
-                        String js_out = new String(output);
-                        
-                        this.callbackContext.success(js_out);
-                    } catch (Exception e) {
-                        this.callbackContext.error("Error to get content file.");
-                    }    
-                    break;
-                default:
-                    this.callbackContext.error("Camera has crashed.");
-            }
-        }
-    }
-
-    private static byte[] loadFile(File file) throws IOException {
-        InputStream is = new FileInputStream(file);
- 
-        long length = file.length();
-        byte[] bytes = new byte[(int)length];
-        
-        int offset = 0;
-        int numRead = 0;
-        while (offset < bytes.length
-               && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) {
-            offset += numRead;
-        }
- 
-        if (offset < bytes.length) {
-            throw new IOException("Could not completely read file "+file.getName());
-        }
- 
-        is.close();
-        return bytes;
-    }
-
-    protected JSONObject generateError(int code, String message) {
-        JSONObject resultForPlugin = new JSONObject();
+      if (args.getString(0) != "null") {
+        byte[] imgBackgroundBase64;
         try {
-            resultForPlugin.put("code", code);
-            resultForPlugin.put("message", message);
-        } catch (JSONException e) {
-            e.printStackTrace();
-        }
+          imgBackgroundBase64 = Base64
+              .decode(args.getString(0), Base64.NO_WRAP);
+        } catch (IllegalArgumentException e) {
+          this.callbackContext.error(generateError(CameraLauncher.RESULT_ERROR,
+              "Error decode base64 picture."));
 
-        return resultForPlugin;
+          return false;
+        }
+        TransferBigData.setImgBackgroundBase64(imgBackgroundBase64);
+      }
+
+      intent.putExtra("miniature", args.getBoolean(1));
+      intent.putExtra("saveInGallery", args.getBoolean(2));
+      intent.putExtra("cameraBackgroundColor", args.getString(3));
+      intent.putExtra("cameraBackgroundColorPressed", args.getString(4));
+      if (args.getInt(5) >= 0 && args.getInt(5) <= 100) {
+        intent.putExtra("quality", args.getInt(5));
+      }
+
+      cordova.startActivityForResult((CordovaPlugin) this, intent,
+          CameraLauncher.REQUEST_CODE);
+
+      return true;
     }
+
+    return false;
+  }
+
+  /**
+   * Call when the CameraActivity is over.
+   * @param requestCode Code used for the activity luncher.
+   * @param resultCode Return code.
+   * @param intent Contains parameters of the activity.
+   */
+  public void onActivityResult(int requestCode, int resultCode, Intent intent) {
+    if (requestCode == CameraLauncher.REQUEST_CODE) {
+      switch (resultCode) {
+        case CameraLauncher.RESULT_ERROR:
+          this.callbackContext.error(generateError(CameraLauncher.RESULT_ERROR,
+              intent.getStringExtra("errorMessage")));
+          break;
+        case CameraLauncher.RESULT_BACK:
+          this.callbackContext.error(generateError(CameraLauncher.RESULT_BACK,
+              "Error because back camera."));
+          break;
+        case CameraLauncher.RESULT_SUCCESS:
+          try {
+            byte[] output = Base64.encode(TransferBigData.getImgTaken(),
+              Base64.NO_WRAP);
+            String jsOut = new String(output);
+
+            this.callbackContext.success(jsOut);
+          } catch (Exception e) {
+            this.callbackContext.error("Error to get content file.");
+          }
+          break;
+        default:
+          this.callbackContext.error("Camera has crashed.");
+      }
+    }
+  }
+
+  /**
+   * Generate error in the plugin. 
+   * 
+   * @param code Error code.
+   * @param message Error message.
+   * 
+   * @return a JSON Object.
+   */
+  protected JSONObject generateError(int code, String message) {
+    JSONObject resultForPlugin = new JSONObject();
+    try {
+      resultForPlugin.put("code", code);
+      resultForPlugin.put("message", message);
+    } catch (JSONException e) {
+      e.printStackTrace();
+    }
+
+    return resultForPlugin;
+  }
 }