模拟器上的 SIP 错误

Question

你好实际上我正在尝试创建一个与 Sip 和 Asterisk 通信一起工作的应用程序但是当我试图运行我的设备上的这个应用程序它工作正常但是如果它尝试使用 Android Emulator 它告诉我一个错误请帮助我解决这个错误

    public class MainActivity extends Activity {
    public SipProfile me = null;
    public SipProfile.Builder builder = null;
    public SipManager mSipManager = null;
    public String sipaddress = null;
    public String username = "17772146242101";
    public String domain = "callcentric.com";
    public String password = "Gjmurugan2!";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button b1 = (Button) findViewById(R.id.button1);
        if (mSipManager == null) {
            mSipManager = SipManager.newInstance(getApplicationContext());
        }

    }
        public void Register(View v)
        {
            try {
                builder = new SipProfile.Builder(username, domain);
                builder.setPassword(password);
                me = builder.build();
            } catch (ParseException e) {

                e.printStackTrace();
            }
              Intent intent=new Intent();
                intent.setAction("android.sipexample.INCOMING_CALL");
                PendingIntent pi=PendingIntent.getBroadcast(getApplicationContext(), 0, intent, Intent.FILL_IN_DATA);
                try {
                    mSipManager.open(me, pi, null);
                } catch (SipException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

            try {
                mSipManager.setRegistrationListener(me.getUriString(), new SipRegistrationListener() {

                    public void onRegistering(String arg0) {
                        Log.d("Success", "Registering with SIP Server...");
                    }

                    public void onRegistrationDone(String arg0, long arg1) {
                        Log.d("Connection Ready", "Ready For Communication");
                    }

                    public void onRegistrationFailed(String arg0, int arg2, String arg1) {
                        Log.d("Error Code", Integer.toString(arg2));
                        Log.d("Error Message", arg1);
                    }
                });
            } catch (SipException e) {
                // TODO: handle exception
                e.printStackTrace();

            }
        }
        // closeLocalProfile();

    private void closeLocalProfile() {
        // TODO Auto-generated method stub
        if (mSipManager == null) {
            return;
        }
        try {
            if (me != null) {
                mSipManager.close(me.getUriString());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}


<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.sipreg.MainActivity" >

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/hello_world" />

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView1"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="147dp"
    android:onClick="Register"
    android:text="Register-Sip" />

</RelativeLayout>

我的错误来了 Logcat

01-05 23:58:43.997: D/AndroidRuntime(1069): Shutting down VM
01-05 23:58:43.997: W/dalvikvm(1069): threadid=1: thread exiting with    uncaught exception (group=0xb4a27ba8)
01-05 23:58:44.017: E/AndroidRuntime(1069): FATAL EXCEPTION: main
01-05 23:58:44.017: E/AndroidRuntime(1069): Process: com.example.sipreg,   PID: 1069
01-05 23:58:44.017: E/AndroidRuntime(1069): java.lang.IllegalStateException:  Could not execute method of the activity
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.view.View.onClick(View.java:3823)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.view.View.performClick(View.java:4438)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.view.View$PerformClick.run(View.java:18422)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.os.Handler.handleCallback(Handler.java:733)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.os.Handler.dispatchMessage(Handler.java:95)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.os.Looper.loop(Looper.java:136)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.app.ActivityThread.main(ActivityThread.java:5001)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at java.lang.reflect.Method.invokeNative(Native Method)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at java.lang.reflect.Method.invoke(Method.java:515)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at dalvik.system.NativeStart.main(Native Method)
01-05 23:58:44.017: E/AndroidRuntime(1069): Caused by: java.lang.reflect.InvocationTargetException
01-05 23:58:44.017: E/AndroidRuntime(1069):     at java.lang.reflect.Method.invokeNative(Native Method)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at java.lang.reflect.Method.invoke(Method.java:515)
01-05 23:58:44.017: E/AndroidRuntime(1069):     at android.view.View.onClick(View.java:3818)
01-05 23:58:44.017: E/AndroidRuntime(1069):     ... 11 more
01-05 23:58:44.017: E/AndroidRuntime(1069): Caused by: java.lang.NullPointerException
01-05 23:58:44.017: E/AndroidRuntime(1069):     at com.example.sipreg.MainActivity.Register(MainActivity.java:52)
01-05 23:58:44.017: E/AndroidRuntime(1069):     ... 14 more
01-05 23:58:45.777: I/Process(1069): Sending signal. PID: 1069 SIG: 9

Answer 1

有些模拟器不支持 SIP，即使支持 API。

因此，SipManager.newInstance 可能 return 为空：请先检查一下！

旁注：如果我们清楚地知道您的 MainActivity.java 文件中的第 52 行是什么，将会有所帮助！

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