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Thread: android sipmanager throwing nullpointer

  1. #1
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    Default android sipmanager throwing nullpointer

    hi i am trying to make a sip call using android api the code is below. the setRegistration Listener method is throwing an nullpointer for my sipprofile but the profile prints fine so am at a bit of a loss as to why its throwing the error. am very new to android this is my first project so any help would be great thanks.

     
    public void MakeACall(String a){
    		try {
     
    			String ad="calling "+a;//a is peer address
    			res1.setText(ad);//res1 is textview
    			String b=sp("name","getonsip.com","pass").getUriString();//local profile
    			res1.setText(b);			
                            System.out.println(b);//prints the sip profile fine
    			SipProfile mSipProfile = sp("name","getonsip.com","pass");
    			SipManager mSipManager =SipManager.newInstance(MainActivity.this);			
    			mSipManager.setRegistrationListener(b,//nullpointer error is thrown here<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
    					new SipRegistrationListener() {
                    public void onRegistering(String localProfileUri) {
                        res1.setText("Registering with SIP Server...");
                    }
     
                    public void onRegistrationDone(String localProfileUri, long expiryTime) {
                    	res1.setText("Ready");
                    }
     
                    public void onRegistrationFailed(String localProfileUri, int errorCode,
                            String errorMessage) {
                    	res1.setText("Registration failed.  Please check settings.");
                    }
                });
     
    			SipAudioCall.Listener whatWasThat = new SipAudioCall.Listener() {	    		
    	    	@Override
    	    	public void onCallEstablished(SipAudioCall call) {
    	    	call.startAudio();
    	    	call.setSpeakerMode(true);
    	    	call.toggleMute();
    	    	res1.setText("calling");
    	    	}
    	    	@Override
    	    	public void onCallEnded(SipAudioCall call) {	    	    
    	    		res1.setText("ended");
    	    	}
    	    	};
     
     
    	        mSipManager.makeAudioCall(sp("name","getonsip.com","pass").getUriString(), 
    	        		sp("other","getonsip.com","pass").getUriString(), whatWasThat, 30);
     
    		} catch (java.text.ParseException e) {
    			System.out.println("error with profile string thing");
    			e.printStackTrace();
    		} catch (SipException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    	}//end makecall()


  2. #2
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    Default Re: android sipmanager throwing nullpointer

    hi i am pritty sure from studying logs it actually a problem with gnerating the profile so the error is in sp() here is the code incase anyone can help
    public SipProfile sp(String a1,String b1,String c1) throws ParseException {	//generates sip profile	username,domain,password
    	SipProfile Profile = null;
     
    	SipProfile.Builder  builder = new Builder(a1,b1);
     
    	builder.setOutboundProxy("proxy.sipthor.net");
    	//builder.setAuthUserName("getonsip_username");
    	builder.setPort(5060);
    	builder.setProtocol("UDP");
    	builder.setPassword(c1);
        Profile = builder.build();
    //    System.out.println(Profile.getDisplayName());
    //	System.out.println(Profile.getPassword());
    //	System.out.println(Profile.getPort());
    //	System.out.println(Profile.getProfileName());
    //	System.out.println(Profile.getProtocol());
    //	System.out.println(Profile.getSipDomain());
    //	System.out.println(Profile.getUserName());
     
     
    	return Profile;

    the reason i have come to that conclusion is the print outs are also generating nullpointers so obiously im missing something tought id post incase anyone knew what im doing wrong

  3. #3
    Super Moderator Norm's Avatar
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    Default Re: android sipmanager throwing nullpointer

    the print outs are also generating nullpointers
    That would mean that the variable used in all the print outs has a null value: Profile
    Can the build() method return a null value?
    If you don't understand my answer, don't ignore it, ask a question.

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