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POself.navigationController is not null but pushViewController is not working
 

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  1. POself.navigationController is not null but pushViewController is not working
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    <p>Basically, I have the following two methods that pushes the same call view controller _vcCall. pushViewController is working fine under on_calling method, but is not working under on_incoming_call. I am sure that self.navigationController is not null and _vcCall is not null neither. I had printed out both navigationController and _vcCall in both methods and they all have the same address. I even tried to create a new viewcontroller in on_incoming_call, but it's still not working. </p> <p>I have only one button in the screen and it pushes to the call view controller when it is clicked. when on_calling method is triggered it pushes to _vcCall successfully, but when on_incoming_call is triggered it does nothing but blocks me from clicking on the Call button. it seems like there is a transparent page being pushed on current view controller.</p> <p><img src="https://i.stack.imgur.com/vANJh.png" alt="enter image description here"></p> <p>Can someone help, please? </p> <pre><code>- (void)viewDidLoad { _vcCall = [[CallViewController alloc] init]; } - (void) sipConnection: (SIPConnection *) connection on_calling: (NSDictionary *) userInfo { NSLog(@"on_calling: navi: %@", self.navigationController); [self.navigationController pushViewController:_vcCall animated:YES]; } - (void)sipConnection:(SIPConnection *)connection on_incoming_call:(NSDictionary *)userInfo { NSLog(@"on_incoming_call: navi: %@", self.navigationController); [self.navigationController pushViewController:_vcCall animated:YES]; } </code></pre> <p>This is the output in console when on_calling is triggered first</p> <pre><code>on_calling: navi: &lt;navViewController: 0x77779d0&gt; on_incoming_call: navi: &lt;navViewController: 0x77779d0&gt; </code></pre> <p>The following part is where the delegate methods are called</p> <pre><code>- (void) processCallMediaState: (NSDictionary *) userInfo { int state = [[userInfo objectForKey: kState] intValue]; switch(state) { case PJSIP_INV_STATE_CALLING: { // After INVITE is sent. [self.delegate sipConnection:self on_calling:userInfo]; break; } case PJSIP_INV_STATE_INCOMING: {// After INVITE is received. [self.delegate sipConnection:self on_incoming_call:userInfo]; break; } case PJSIP_INV_STATE_EARLY: {// After response with To tag. break; } case PJSIP_INV_STATE_CONNECTING:{ // After 2xx is sent/received. break; } case PJSIP_INV_STATE_CONFIRMED: { // After ACK is sent/received. [self.delegate sipConnection:self on_respond:userInfo]; break; } case PJSIP_INV_STATE_DISCONNECTED: { [self.delegate sipConnection:self on_ending:userInfo]; break; } } } </code></pre>
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    1. PTQuestion
    1. USJonatWang
    1. USJonatWang
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    1. COwhat it does say on calling of on_incoming_call??? I mean does it give any error message or something in console?
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      1. POself.navigationController is not null but pushViewController is not working
      1. USSuryakant
    2. COfrom where u calling these two methods?
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      1. POself.navigationController is not null but pushViewController is not working
      1. USmanujmv
    3. COI just updated my post and added a screenshot. It doesn't show any error messages. it just does nothing. these two methods are delegate methods called by a sip connection class. and I am 200% sure that they are triggered, since I am seeing those messages in the methods.
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      1. POself.navigationController is not null but pushViewController is not working
      1. USJonatWang
 

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