我一直在运行2.3.3的HTC Desire Z上编写代码,它可以正常工作-现在我来在另一台设备(运行2.3.4的Nexus One)上对其进行测试,并且崩溃了。这是代码:
if (me == null || sipManager == null || listener == null){
Log.e("OH","NO");
}
sipManager.register(me, 30, listener);
我传递给sipManager.register的所有东西都不为空(永远不会调用该日志),但这是我的堆栈跟踪:
FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to create service com.myapp.Service: java.lang.NullPointerException
at android.app.ActivityThread.handleCreateService(ActivityThread.java:1955)
at android.app.ActivityThread.access$2500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3683)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.net.sip.SipManager.register(SipManager.java:474)
at com.myapp.Service.onCreate(Service.java:159)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:1945)
... 10 more
查看Android来源似乎也没有发现任何明显的东西-我传递给它的一切都在另一台设备上有效。
两种设备都运行2.3+,并且都启用了SIP堆栈:
if (SipManager.isVoipSupported(this) && SipManager.isApiSupported(this)){
编辑:
这是一个完整的 Activity ,可以复制该问题:
public class SIPTest extends Activity {
public SipManager sipManager = null;
SipProfile me = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
if (SipManager.isVoipSupported(this) && SipManager.isApiSupported(this)){
// SIP is supported, let's go!
Log.e("SIP", "SUPPORTED");
sipManager = SipManager.newInstance(this);
String username = "username";
String password = "password";
String domain = "example.org";
try {
SipProfile.Builder builder = new SipProfile.Builder(username, domain);
builder.setPassword(password);
builder.setDisplayName(username);
builder.setProfileName(username + "@" + domain);
me = builder.build();
sipManager.register(me, 30, new SipRegistrationListener() {
public void onRegistering(String localProfileUri) {
Log.e("SIP","Registering with SIP Server...");
}
public void onRegistrationDone(String localProfileUri, long expiryTime) {
Log.e("SIP","Ready!");
}
public void onRegistrationFailed(String localProfileUri, int errorCode,
String errorMessage) {
Log.e("SIP","Registration failed. " + errorMessage + " ("+errorCode+") - " + localProfileUri);
}
});
} catch (ParseException pe) {
Log.e("SIP","Connection Error.");
} catch (SipException se) {
Log.e("SIP","Connection error.");
}
}
}
}
最佳答案
您只需放置sipManager.open(me);在执行sipManager.register()之前,因为需要创建新的sip session 。
小心!