在我的 Android 4.2.2 模拟器中，我尝试使用 scribe 代码片段:
OAuthService service = new ServiceBuilder()
.provider(TwitterApi.class)
.apiKey("abc")
.apiSecret("aaa123")
.debug()
.build();
Scanner in = new Scanner(System.in);
Token requestToken = service.getRequestToken();
在 logcat 中，我收到以下错误。我认为这可能是因为 Scribe 的这个示例代码不是异步任务。你能推荐一个异步示例吗？
请注意，此代码片段适用于 Android 2.3.3。它不适用于 Android 4.2.2。
E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException:
Unable to start activity
ComponentInfo{com.myexample.android/com.myexample.android.MyActivity}:
org.scribe.exceptions.OAuthConnectionException:
There was a problem while creating a connection to the remote service.
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$MethodAndArgsCaller.run(ZygoteInit.java:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
Caused by: org.scribe.exceptions.OAuthConnectionException: There was a problem while creating a connection to the remote service.
at org.scribe.model.Request.send(Request.java:70)
at org.scribe.oauth.OAuth10aServiceImpl.getRequestToken(OAuth10aServiceImpl.java:59)
at org.scribe.oauth.OAuth10aServiceImpl.getRequestToken(OAuth10aServiceImpl.java:40)
at org.scribe.oauth.OAuth10aServiceImpl.getRequestToken(OAuth10aServiceImpl.java:45)
at com.myexample.android.MyActivity.onCreate(MyActivity.java:139)
at android.app.Activity.performCreate(Activity.java:5104)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
... 11 more
Caused by: android.os.NetworkOnMainThreadException
at android.os.StrictMode$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 org.scribe.model.Request.addBody(Request.java:136)
at org.scribe.model.Request.doSend(Request.java:114)
at org.scribe.model.Request.send(Request.java:66)
... 18 more
最佳答案
这是因为更高版本的 Android 现在要求网络连接发生在主线程之外。我以前为此使用 AsyncTask，但在未来的 Android 版本中将被弃用。
我建议使用 AsyncTaskLoader如果您需要接收结果并更新 UI。否则，您可以使用 IntentService (或任何其他 Service 类型)。您还可以创建一个新的 Thread直接地。无论您做出什么决定，一旦您将连接从主线程移开，您将不会收到 NetworkOnMainThreadException。没有了!
关于java - Android 4 中的 Scribe-java 和异步请求，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17865468/