From a9877ec0a13c11625eb7ca59486be006d43ebda7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebasti=C3=A1n=20Katzer?= <katzer.sebastian@googlemail.com>
Date: Tue, 3 Jan 2017 22:06:50 +0100
Subject: [PATCH] Allow app to move to foreground (Android)

---
 src/android/BackgroundMode.java | 42 +++++++++++++++++++++++++--------
 www/background-mode.js          | 11 +++++++++
 2 files changed, 43 insertions(+), 10 deletions(-)

diff --git a/src/android/BackgroundMode.java b/src/android/BackgroundMode.java
index fa70495..fdebc8f 100644
--- a/src/android/BackgroundMode.java
+++ b/src/android/BackgroundMode.java
@@ -114,6 +114,11 @@ public class BackgroundMode extends CordovaPlugin {
             return true;
         }
 
+        if (action.equalsIgnoreCase("foreground")) {
+            moveToForeground();
+            return true;
+        }
+
         if (action.equalsIgnoreCase("enable")) {
             enableMode();
             return true;
@@ -162,6 +167,33 @@ 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.
      */
@@ -308,16 +340,6 @@ public class BackgroundMode extends CordovaPlugin {
         thread.start();
     }
 
-    /**
-     * Send app to background.
-     */
-    private void moveToBackground() {
-        Intent intent = new Intent(Intent.ACTION_MAIN);
-
-        intent.addCategory(Intent.CATEGORY_HOME);
-        cordova.getActivity().startActivity(intent);
-    }
-
     /**
      * Fire vent with some parameters inside the web view.
      *
diff --git a/www/background-mode.js b/www/background-mode.js
index 063705d..50d3367 100644
--- a/www/background-mode.js
+++ b/www/background-mode.js
@@ -110,6 +110,17 @@ exports.moveToBackground = function () {
     }
 };
 
+/**
+ * Move app to foreground when in background (Android only).
+ *
+ * @return [ Void ]
+ */
+exports.moveToForeground = function () {
+    if (this.isActive() && device.platform == 'Android') {
+        cordova.exec(null, null, 'BackgroundMode', 'foreground', []);
+    }
+};
+
 /**
  * Override the back button on Android to go to background
  * instead of closing the app.