Code refactoring

src/android/BackgroundMode.java

@@ -22,14 +22,11 @@
 package de.appplant.cordova.plugin.background;
 
 import android.app.Activity;
-import android.app.ActivityManager;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.ServiceConnection;
-import android.os.Build;
 import android.os.IBinder;
-import android.view.View;
 
 import org.apache.cordova.CallbackContext;
 import org.apache.cordova.CordovaPlugin;
@@ -37,9 +34,6 @@ import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-import java.lang.reflect.Method;
-import java.util.List;
-
 public class BackgroundMode extends CordovaPlugin {
 
     // Event types for callbacks
@@ -66,6 +60,9 @@ public class BackgroundMode extends CordovaPlugin {
     // Service that keeps the app awake
     private ForegroundService service;
 
+    // Plugin extensions
+    private BackgroundModeExt ext;
+
     // Used to (un)bind the service to with the activity
     private final ServiceConnection connection = new ServiceConnection() {
         @Override
@@ -82,6 +79,14 @@ public class BackgroundMode extends CordovaPlugin {
         }
     };
 
+    /**
+     * Called after plugin construction and fields have been initialized.
+     */
+    @Override
+    protected void pluginInitialize() {
+        ext = new BackgroundModeExt(cordova, webView);
+    }
+
     /**
      * Executes the request.
      *
@@ -105,22 +110,6 @@ public class BackgroundMode extends CordovaPlugin {
             configure(settings, update);
         }
 
-        if (action.equalsIgnoreCase("disableWebViewOptimizations")) {
-            disableWebViewOptimizations();
-        }
-
-        if (action.equalsIgnoreCase("background")) {
-            moveToBackground();
-        }
-
-        if (action.equalsIgnoreCase("foreground")) {
-            moveToForeground();
-        }
-
-        if (action.equalsIgnoreCase("tasklist")) {
-            excludeFromTaskList();
-        }
-
         if (action.equalsIgnoreCase("enable")) {
             enableMode();
         }
@@ -129,6 +118,22 @@ public class BackgroundMode extends CordovaPlugin {
             disableMode();
         }
 
+        if (action.equalsIgnoreCase("optimizations")) {
+            ext.disableWebViewOptimizations();
+        }
+
+        if (action.equalsIgnoreCase("background")) {
+            ext.moveToBackground();
+        }
+
+        if (action.equalsIgnoreCase("foreground")) {
+            ext.moveToForeground();
+        }
+
+        if (action.equalsIgnoreCase("tasklist")) {
+            ext.excludeFromTaskList();
+        }
+
         callback.success();
 
         return true;
@@ -167,33 +172,6 @@ public class BackgroundMode extends CordovaPlugin {
         stopService();
     }
 
-    /**
-     * Move app to background.
-     */
-    private void moveToBackground() {
-        Intent intent = new Intent(Intent.ACTION_MAIN);
-
-        intent.addCategory(Intent.CATEGORY_HOME);
-        cordova.getActivity().startActivity(intent);
-    }
-
-    /**
-     * Move app to foreground.
-     */
-    private void moveToForeground() {
-        Context context = cordova.getActivity();
-        String pkgName  = context.getPackageName();
-
-        Intent intent = context
-                .getPackageManager()
-                .getLaunchIntentForPackage(pkgName);
-
-        intent.addFlags(
-                Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_SINGLE_TOP);
-
-        context.startActivity(intent);
-    }
-
     /**
      * Enable the background mode.
      */
@@ -305,68 +283,6 @@ public class BackgroundMode extends CordovaPlugin {
         isBind = false;
     }
 
-    /**
-     * Enable GPS position tracking while in background.
-     */
-    private void disableWebViewOptimizations() {
-        Thread thread = new Thread(){
-            public void run() {
-                try {
-                    Thread.sleep(1000);
-                    cordova.getActivity().runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            View view = webView.getEngine().getView();
-
-                            try {
-                                Class<?> xWalkCls = Class.forName(
-                                        "org.crosswalk.engine.XWalkCordovaView");
-
-                                Method onShowMethod =
-                                        xWalkCls.getMethod("onShow");
-
-                                onShowMethod.invoke(view);
-                            } catch (Exception e){
-                                view.dispatchWindowVisibilityChanged(View.VISIBLE);
-                            }
-                        }
-                    });
-                } catch (InterruptedException e) {
-                    // do nothing
-                }
-            }
-        };
-
-        thread.start();
-    }
-
-    /**
-     * Exclude the app from the recent tasks list.
-     */
-    private void excludeFromTaskList() {
-        ActivityManager am = (ActivityManager) cordova.getActivity()
-                .getSystemService(Context.ACTIVITY_SERVICE);
-
-        if (am == null || Build.VERSION.SDK_INT < 21)
-            return;
-
-        try {
-            Method getAppTasks = am.getClass().getMethod("getAppTasks");
-            List tasks = (List) getAppTasks.invoke(am);
-
-            if (tasks == null || tasks.isEmpty())
-                return;
-
-            ActivityManager.AppTask task = (ActivityManager.AppTask) tasks.get(0);
-            Method setExcludeFromRecents = task.getClass()
-                    .getMethod("setExcludeFromRecents", boolean.class);
-
-            setExcludeFromRecents.invoke(task, true);
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-    }
-
     /**
      * Fire vent with some parameters inside the web view.
      *