Method HandleCmd

teapots/image-decoder/src/main/cpp/TeapotNativeActivity.cpp:255–291

* Process the next main command. */

 * Process the next main command.
 */
void Engine::HandleCmd(struct android_app* app, int32_t cmd) {
  Engine* eng = (Engine*)app->userData;
  switch (cmd) {
    case APP_CMD_SAVE_STATE:
      break;
    case APP_CMD_INIT_WINDOW:
      // The window is being shown, get it ready.
      if (app->window != NULL) {
        eng->InitDisplay(app);
        eng->has_focus_ = true;
        eng->DrawFrame();
      }
      break;
    case APP_CMD_TERM_WINDOW:
      // The window is being hidden or closed, clean it up.
      eng->TermDisplay();
      eng->has_focus_ = false;
      break;
    case APP_CMD_STOP:
      break;
    case APP_CMD_GAINED_FOCUS:
      eng->ResumeSensors();
      // Start animation
      eng->has_focus_ = true;
      break;
    case APP_CMD_LOST_FOCUS:
      eng->SuspendSensors();
      // Also stop animating.
      eng->has_focus_ = false;
      eng->DrawFrame();
      break;
    case APP_CMD_LOW_MEMORY:
      // Free up GL resources
      eng->TrimMemory();
      break;
  }
}

//-------------------------------------------------------------------------
// Sensor handlers