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我正在尝试将twitter4j用于 Oauth 进程。我检查了安卓浏览器，打开谷歌后互联网连接仍然存在。

我运行以下代码片段。当我在我的活动中运行此代码时，我的模拟器页面中出现“不幸的是我的应用程序已关闭”。在 Logcat 中，我只看到：“ccc：try1”。我没有看到“trying2”。

可能这个错误不是因为 twitter4j，但我找不到错误。 

    Twitter twitter = TwitterFactory.getSingleton();
    twitter.setOAuthConsumer("12345", "aaaa1212");
    RequestToken requestToken = null;
    try {
         Log.d("ccc","trying1");
         requestToken = twitter.getOAuthRequestToken();
         Log.d("ccc","trying2");
    } catch (TwitterException e) {
        Log.d("unsuccess message:",e.getMessage());
        Log.d("unsuccess statuscode:", Integer.toString(e.getStatusCode()));
        Log.d("unsuccess errormessage:",e.getErrorMessage());
        e.printStackTrace();
    }

应用：
minSdkVersion="10"
targetSdkVersion="17"
模拟器版本 Android 4.2.2

还相关： 带有回调 URL 的 Twitter4j getOAuthRequestToken() 在 Android 上失败？

编辑：我很好奇非异步请求可能是问题所在。因为相同的代码适用于 Android 2.3.3。

编辑2：我得到android.os.NetworkOnMainThreadException. 像这样的 Logcat 条目：

07-24 23:29:40.190    5455-5455/com.myexample.android  D/ccc: trying1
07-24 23:29:40.520    5455-5455/com.myexample.android  D/AndroidRuntime:      Shutting down VM
07-24 23:29:40.535    5455-5455/com.myexample.android  W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0xb4db7908)
07-24 23:29:40.660    5455-5455/com.myexample.android  E/AndroidRuntime: FATAL EXCEPTION: main
    java.lang.RuntimeException: 
        Unable to start activity               
         ComponentInfo{com.myexample.android/com.myexample.android.MyActivity}: 
         android.os.NetworkOnMainThreadException

    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
    at android.app.ActivityThread.access$600(ActivityThread.java:141)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:5039)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
    at dalvik.system.NativeStart.main(Native Method)
    Caused by: android.os.NetworkOnMainThreadException
    at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
    at java.net.InetAddress.lookupHostByName(InetAddress.java:385)
    at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236)
    at java.net.InetAddress.getAllByName(InetAddress.java:214)
    at libcore.net.http.HttpConnection.<init>(HttpConnection.java:70)
    at libcore.net.http.HttpConnection.<init>(HttpConnection.java:50)
    at libcore.net.http.HttpConnection$Address.connect(HttpConnection.java:340)
    at libcore.net.http.HttpConnectionPool.get(HttpConnectionPool.java:87)
    at libcore.net.http.HttpConnection.connect(HttpConnection.java:128)
    at libcore.net.http.HttpEngine.openSocketConnection(HttpEngine.java:316)
    at libcore.net.http.HttpEngine.connect(HttpEngine.java:311)
    at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
    at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
    at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:81)
    at libcore.net.http.HttpURLConnectionImpl.getOutputStream(HttpURLConnectionImpl.java:197)
    at twitter4j.internal.http.HttpClientImpl.request(HttpClientImpl.java:150)
    at twitter4j.internal.http.HttpClientWrapper.request(HttpClientWrapper.java:61)
    at twitter4j.internal.http.HttpClientWrapper.post(HttpClientWrapper.java:98)
    at twitter4j.auth.OAuthAuthorization.getOAuthRequestToken(OAuthAuthorization.java:122)
    at twitter4j.auth.OAuthAuthorization.getOAuthRequestToken(OAuthAuthorization.java:104)
    at twitter4j.TwitterBaseImpl.getOAuthRequestToken(TwitterBaseImpl.java:281)
    at twitter4j.TwitterBaseImpl.getOAuthRequestToken(TwitterBaseImpl.java:273)
    at com.myexample.android.MyActivity.onCreate(MyActivity.java:136)
    at android.app.Activity.performCreate(Activity.java:5104)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
    ... 11 more
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1 回答 1

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你的异常名称说明了一切'NetworkOnMainThreadException'

您正在主/UI 线程上进行网络调用。

尝试在单独的线程或 ASyncTask 中执行此代码，例如：

new Thread(new Runnable() {
    // your code
}).start();

编辑：Android 2.3 不会检查您是否在主线程上进行互联网访问（因此我们都需要将这个版本的 Android 抛在后面；））

于 2013-07-25T19:12:39.637 回答