Question

我正在尝试创建一个Twitter客户端，我坚持这个场景。欢迎屏幕中有一个按钮，告诉用户授权该应用程序。此按钮将调用twitter授权页面并返回URL。我需要调用onNewIntent方法来捕获URL详细信息并存储它。由于某种原因，该方法未被调用。请帮忙。

android:launchMode="singleTop"

也不起作用。

onCreate方法

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);


    //Enabling strict mode
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();

    StrictMode.setThreadPolicy(policy);

    //get the preferences for the app
    nicePrefs = getSharedPreferences("WolfyPref", 0);


    //find out if the user preferences are set
    if(nicePrefs.getString("user_token", null)==null) {

        setContentView(R.layout.activity_main);

        //no user preferences so prompt to sign in

        niceTwitter = new TwitterFactory().getInstance();
        niceTwitter.setOAuthConsumer(TWIT_KEY,TWIT_SECRET);
        //try to get request token
        try
        {
            //get authentication request token
            niceRequestToken = niceTwitter.getOAuthRequestToken(TWIT_URL);
        }
        catch(TwitterException te) { Log.e(LOG_TAG, "TE " + te.getMessage()); }

        FloatingActionButton fab = (FloatingActionButton)findViewById(R.id.fab);
        fab.setOnClickListener(this);
    }
    else
    {
        //user preferences are set - get timeline
        setupTimeline();
    }


/*    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);*/


}

的onClick

public void onClick(View v) {
    //find view
    switch(v.getId()) {
        //sign in button pressed
        case R.id.fab:
            //take user to twitter authentication web page to allow app access to their twitter account
            String authURL = niceRequestToken.getAuthenticationURL();
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(authURL)));
            break;

        default:
            break;
    }
}

onNewIntent

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    //get the retrieved data
    Uri twitURI = intent.getData();
    //make sure the url is correct
    if(twitURI!=null && twitURI.toString().startsWith(TWIT_URL))
    {
        //is verifcation - get the returned data
        String oaVerifier = twitURI.getQueryParameter("oauth_verifier");
        //attempt to retrieve access token
        try
        {
            //try to get an access token using the returned data from the verification page
            AccessToken accToken = niceTwitter.getOAuthAccessToken(niceRequestToken, oaVerifier);

            //add the token and secret to shared prefs for future reference
            nicePrefs.edit()
                    .putString("user_token", accToken.getToken())
                    .putString("user_secret", accToken.getTokenSecret())
                    .apply();

            //display the timeline
            setupTimeline();
        }
        catch (TwitterException te)
        { Log.e(LOG_TAG, "Failed to get access token: " + te.getMessage()); }

    }
}

由于没有调用onNewIntent方法，我得到了这个屏幕。

Answer 1

onNewIntent将针对带有标记＆＃39; singleTop＆＃39;的活动进行调用仅当此活动已存在于堆栈顶部时。在你的情况下，你第一次开始你的活动，所以没有onNewIntent的调用。

有关详细信息，请参阅this。

不会调用onNewIntent方法

1 个答案: