Android不会保存活动的当前状态

Saving Android Activity state using Save Instance State

但是它似乎没有从Oncreate()加载它。bundle对象总是空的,但是每当我调用另一个activity时,它确实进入onSaveInstanceState方法来保存我的值。

现在根据这里的文件 http://developer.android.com/guide/topics/fundamentals.html#actlife 就生命周期图所显示的内容而言,这是正确的,但是如果您在onStop()部分阅读该图下面的内容,它会说它进入的下一步是onRestart()或onDestroy()?没有提到onCreate?在文件上打字?

总之,这里是同一活动中的onSaveInstanceState()和onCreate():

@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
    Log.d(TAG, "SAVING OauthManager in onSaveInstanceState");
    // TODO: if works, we need to save the my network list HashMap as well
    // so we dont make a call to the platform everytime we refresh this
    // screen
    // savedInstanceState.putSerializable("oauthManager", mOathManager);
    // Log.d(TAG, "finished saving");
    // super.onSaveInstanceState(savedInstanceState);
    // Log.d(TAG, "super.onSaveInstanceState(savedInstanceState)");

    savedInstanceState.putString(USER_CONSUMER_ID,
            mSavedUserConsumerTokenId);
    savedInstanceState.putString(USER_CONSUMER_SECRET,
            mSavedUserConsumerSecret);

    savedInstanceState.putString(URL_REQUEST_TOKEN, mSavedRequestTokenUrl);
    savedInstanceState.putString(URL_ACCESS_TOKEN, mSavedAccessTokenUrl);
    savedInstanceState.putString(URL_AUTHORIZE_TOKEN,
            mSavedAuthorizeTokenUrl);
    super.onSaveInstanceState(savedInstanceState);
}

@Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        Log.d(TAG, "    ");
        Log.d(TAG, "onCreate");
        Log.d(TAG, "///////////////////////////////////////");
        Log.d(TAG, "///////////////////////////////////////");
        super.onCreate(savedInstanceState);
        Log.d(TAG, "super.onCreate(savedInstanceState);");
        setContentView(R.layout.network_list);
        mContext = getApplicationContext();
        mIntent = getIntent();


        mGoogleButton = (Button) findViewById(R.id.googleAddOrRemoveButton);
        mFacebookButton = (Button) findViewById(R.id.facebookAddOrRemoveButton);
        mLinkedInkButton = (Button) findViewById(R.id.linkedInAddOrRemoveButton);
        mPopEmailButton = (Button) findViewById(R.id.popEmailAddOrRemoveButton);


        if (savedInstanceState != null) {
            Log.d(TAG, "inside if (savedInstanceState != null) {");
            Log.d(TAG, "savedInstanceState != null");
            // mOathManager = (OAuthManager) savedInstanceState
            // .getSerializable("oauthManager");
            mSavedUserConsumerTokenId = savedInstanceState
                    .getString(USER_CONSUMER_ID);
            mSavedUserConsumerSecret = savedInstanceState
                    .getString(USER_CONSUMER_SECRET);

            mSavedRequestTokenUrl = savedInstanceState
                    .getString(URL_REQUEST_TOKEN);
            mSavedAccessTokenUrl = savedInstanceState
                    .getString(URL_ACCESS_TOKEN);
            mSavedAuthorizeTokenUrl = savedInstanceState
                    .getString(URL_AUTHORIZE_TOKEN);

            mOathManager = new OAuthManager(mContext, getIntent(),
                    mSavedUserConsumerTokenId, mSavedUserConsumerSecret,
                    mSavedRequestTokenUrl, mSavedAccessTokenUrl,
                    mSavedAuthorizeTokenUrl, CALLBACK_URI);

            mOathManager.requestUserRequestToken();
        } else{

            Log.d(TAG, "savedInstanceState is null and loading the list again");
            GetNetworkListTask getNetworkListTask = new GetNetworkListTask();
            getNetworkListTask.execute();
        }




    }