多个活动中的 Facebook UiLifeCycleHelper

Question

我正在尝试在我的应用程序中实施 facebook sdk。我有三个活动。 Main Activity（用于 facebook 登录）与 UiLifeCycleHelper 配合良好。

private UiLifecycleHelper uiHelper;
    private Session.StatusCallback statusCallback = new Session.StatusCallback() {
        @Override
        public void call(Session session, SessionState state,
                Exception exception) {
            onSessionStateChange(session, state, exception);
        }
    };

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    uiHelper = new UiLifecycleHelper(this, statusCallback);
    uiHelper.onCreate(savedInstanceState);
}

@Override
protected void onResume() {
    super.onResume();
    // For scenarios where the main activity is launched and user
    // session is not null, the session state change notification
    // may not be triggered. Trigger it if it's open/closed.
    Session session = Session.getActiveSession();
    if (session != null && (session.isOpened() || session.isClosed())) {
        onSessionStateChange(session, session.getState(), null);
    }
    uiHelper.onResume();
}

@Override
protected void onPause() {
    super.onPause();
    uiHelper.onPause();
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    uiHelper.onActivityResult(requestCode, resultCode, data);
}

@Override
protected void onDestroy() {
    super.onDestroy();
    uiHelper.onDestroy();
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    Session session = Session.getActiveSession();
    Session.saveSession(session, outState);
    uiHelper.onSaveInstanceState(outState);
}

private void onSessionStateChange(Session session, SessionState state, Exception exception) {
    if (state.isOpened()) {
        Log.i(Consts.TAG, "Logged in...");
        setCookies();
    } else if (state.isClosed()) {
        Log.i(Consts.TAG, "Logged out...");
    }
}

但是我还有另外两个活动StepOneActivity和StepTwoActivity也需要集成facebook sdk。所以我必须在这些活动中使用相同的 UiLifeCycleHelper 实例。请告诉我如何在从 MainActivity 作为 startActivity(new Intent(this,StepOneActivity.class)); 启动的 StepOneActivity 和 StepTwoActivity 中实现 uilifecyclehelper。我必须 post 来自 StepOneActivity 的短信并邀请来自 StepTwoActivity 的朋友。

Answer 1

您可以创建一个 FacebookActivity，它是所有需要 Facebook 实施的活动的父级 class

从父 activity 调用所有生命周期方法，并在所有这三个 activity 上从 FacebookActivity

扩展

这样你就必须编写一次这些生命周期方法，如果你需要另一个 Activity 与 FB 实现，只需使其从 Facebook 扩展Activity

这是在 Paint 中创建的精美图表

多个活动中的 Facebook UiLifeCycleHelper

Facebook UiLifeCycleHelper in multiple activities

android

facebook

facebook-graph-api