fix Everything is lost when the app is killed in background for android

location/drivers/android.c

@@ -132,17 +132,38 @@ static bool android_location_start(void *data)
    return true;
 }
 
+#ifdef __ANDROID__
+
 static void android_location_stop(void *data)
 {
-   struct android_app *android_app = (struct android_app*)g_android;
-   androidlocation_t *androidlocation = (androidlocation_t*)data;
-   JNIEnv *env = jni_thread_getenv();
-   if (!env)
+ androidlocation_t *androidlocation = (androidlocation_t*)data;
+   JNIEnv *env                     = jni_thread_getenv();
+
+   if (!androidlocation || !env)
       return;
 
+
+   settings_t* settings = config_get_ptr();
+   bool auto_save_state = settings->bools.auto_save_state;
+
+   if (auto_save_state)
+   {
+      /* Make a save state */
+      command_event(CMD_EVENT_SAVE_STATE, NULL);
+
+       /* Flush the auto save state to disk */
+      command_event(CMD_EVENT_AUTOSAVE_DELETE, NULL);
+   }
+
+   /* Flush SRAM to disk */
+   command_event(CMD_EVENT_SAVE_FILES, NULL);
+
+   /* Stop the location service */
+   struct android_app *android_app = (struct android_app*)g_android;
    CALL_VOID_METHOD(env, android_app->activity->clazz,
-         androidlocation->onLocationStop);
+                    androidlocation->onLocationStop);
 }
+#endif
 
 static bool android_location_get_position(void *data, double *latitude,
       double *longitude, double *horiz_accuracy,

location_driver.c

@@ -116,6 +116,8 @@ void driver_location_stop(void)
       location_st->driver->stop(location_st->data);
 }
 
+
+
 void driver_location_set_interval(unsigned interval_msecs,
       unsigned interval_distance)
 {

location_driver.h

@@ -92,7 +92,29 @@ void driver_location_set_interval(unsigned interval_msecs,
  *
  * Returns: true (1) if successful, otherwise false (0).
  **/
-void driver_location_stop(void);
+void driver_location_stop(void)
+{
+   if (location_driver_state.active && location_driver_state.driver->stop)
+      location_driver_state.driver->stop(location_driver_state.data);
+
+   // Flush SRAM to disk
+   if (RetroArch.isSramAutoSaveEnabled()) {
+      RetroArch.saveSram();
+   }
+
+   // If auto save state is on, make a save state
+   if (RetroArch.isAutoSaveStateEnabled()) {
+      RetroArch.saveState();
+   }
+
+   // Flush auto save state to disk
+   if (RetroArch.isAutoSaveStateEnabled()) {
+      RetroArch.flushAutoSaveState();
+   }
+
+   location_driver_state.active = false;
+}
+
 
 /**
  * driver_location_start: