Android improvements:

runtime/embedders/openglui/emulator/emulator_embedder.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "embedders/openglui/emulator/emulator_embedder.h"
 
 #include <string.h>
 #include <sys/time.h>
 #include "embedders/openglui/common/canvas_context.h"
 #include "embedders/openglui/common/context.h"
 #include "embedders/openglui/common/dart_host.h"
 #include "embedders/openglui/common/events.h"
 #include "embedders/openglui/common/input_handler.h"
+#include "embedders/openglui/common/log.h"
 #include "embedders/openglui/common/sound_handler.h"
 #include "embedders/openglui/common/vm_glue.h"
 #include "embedders/openglui/emulator/emulator_graphics_handler.h"
 
 InputHandler* input_handler_ptr;
 LifeCycleHandler* lifecycle_handler_ptr;
 
 struct timeval tvStart;
 void tick(int data);
 
@@ skipping 24 matching lines @@
   glLoadIdentity();
   glOrtho(0, width, 0, height, -1, 1);
   glMatrixMode(GL_MODELVIEW);
   glutPostRedisplay();
 }
 
 void keyboard(unsigned char key, int x, int y) {
   input_handler_ptr->OnKeyEvent(kKeyDown, time(0), 0, key, 0, 0);
   input_handler_ptr->OnKeyEvent(kKeyUp, time(0), 0, key, 0, 0);
   if (key == 27) {
+    lifecycle_handler_ptr->Pause();
+    lifecycle_handler_ptr->Deactivate();
+    lifecycle_handler_ptr->FreeAllResources();
     exit(0);
+  } else if (key == '0') {
+    LOGI("Simulating suspend");
+    lifecycle_handler_ptr->Pause();
+    lifecycle_handler_ptr->Deactivate();
+  } else if (key == '1') {
+    LOGI("Simulating resume");
+    lifecycle_handler_ptr->Activate();
+    lifecycle_handler_ptr->Resume();
+  } else if (key == '+') {
+    LOGI("Simulating focus gain");
+    lifecycle_handler_ptr->Resume();
+  } else if (key == '-') {
+    LOGI("Simulating focus loss");
+    lifecycle_handler_ptr->Pause();
   }
 }
 
 DART_EXPORT void emulator_main(int argc, char** argv, const char* script) {
   EmulatorGraphicsHandler graphics_handler(argc, argv);
   if (argc > 0) {
     int i = argc - 1;
     size_t len = strlen(argv[i]);
     if (len > 5 && strcmp(".dart", argv[i] + len - 5) == 0) {
       script = argv[i];
     }
   }
   VMGlue vm_glue(&graphics_handler, ".", "gl.dart", script);
   InputHandler input_handler(&vm_glue);
   input_handler_ptr = &input_handler;
   SoundHandler sound_handler;
   Timer timer;
   Context app_context;
   app_context.graphics_handler = &graphics_handler;
   app_context.input_handler = &input_handler;
   app_context.sound_handler = &sound_handler;
   app_context.timer = &timer;
   app_context.vm_glue = &vm_glue;
   DartHost host(&app_context);
   lifecycle_handler_ptr = &host;
   glutReshapeFunc(reshape);
   glutDisplayFunc(display);
   glutKeyboardFunc(keyboard);
-  lifecycle_handler_ptr->OnActivate();
+  lifecycle_handler_ptr->OnStart();
+  lifecycle_handler_ptr->Activate();
+  lifecycle_handler_ptr->Resume();
   gettimeofday(&tvStart, NULL);
   glutTimerFunc(1, tick, 0);
   glutMainLoop();
 }