ReactAppTestActivity.java 文件源码

private ReactContext waitForReactContext() {
  Assertions.assertNotNull(mReactInstanceManager);

  try {
    while (true) {
      ReactContext reactContext = mReactInstanceManager.getCurrentReactContext();
      if (reactContext != null) {
         return reactContext;
      }
      Thread.sleep(100);
    }
  } catch (InterruptedException e) {
    throw new RuntimeException(e);
  }
}