[android-beginners] Re: Invokation Exception

[Urizev]

Ok. I forgot the permissions. I wrote the code like yours and,
however, it throws the following exception when startPreview is
called:

   java.io.IOException: startPreview failed

I have no more information and I do not know how to get more.

Regards

On 14 jun, 21:06, sm1 sergemas...@gmail.com wrote:
 As MrChaz wrote, you'll definitively need the Camera permission and
 for checking if you are still getting exceptions, try this:

 Camera cam = null;
 try{
   cam = Camera.open();}catch(Exception ex){

   Log.e(Camera.open(),+ex);}

 if(cam==null){
   return;}

 //it is very important that the camera be released by the app that
 opens it.
 try{//try-finally block to ensure that the camera is released
   try{
     cam.startPreview();
   }catch(Exception ex){
     Log.e(Camera.startPreview(),+ex);
     return;
   }

   //other work here

 }finally{

   try{
     cam.release();
   }catch(Exception ex){
     Log.e(Camera. release(),+ex);
   }

 }

 serge

 On Jun 13, 9:51 am, MrChaz mrchazmob...@googlemail.com wrote:

  Have you added the Camera permission to the manifest?

  On Jun 12, 11:32 am, Urizev uri...@gmail.com wrote:

   I am developing an application which uses the camera of my G2. The
   code using the camera is showed below:

                   Camera cam = Camera.open();
                   if (cam == null) {
                           return;
                   }

                   cam.startPreview();

   It throws and  Exception and I do not know why. Someone has any
   idea?

   com.sun.jdi.InvocationException occurred invoking

   Regards
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Beginners group.
To post to this group, send email to android-beginners@googlegroups.com
To unsubscribe from this group, send email to
android-beginners-unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-beginners?hl=en
-~--~~~~--~~--~--~---

[android-beginners] Re: Invokation Exception

[sm1]

As MrChaz wrote, you'll definitively need the Camera permission and
for checking if you are still getting exceptions, try this:

Camera cam = null;
try{
  cam = Camera.open();
}catch(Exception ex){
  Log.e(Camera.open(),+ex);
}
if(cam==null){
  return;
}
//it is very important that the camera be released by the app that
opens it.
try{//try-finally block to ensure that the camera is released
  try{
cam.startPreview();
  }catch(Exception ex){
Log.e(Camera.startPreview(),+ex);
return;
  }

  //other work here

}finally{
  try{
cam.release();
  }catch(Exception ex){
Log.e(Camera. release(),+ex);
  }
}


serge


On Jun 13, 9:51 am, MrChaz mrchazmob...@googlemail.com wrote:
 Have you added the Camera permission to the manifest?

 On Jun 12, 11:32 am, Urizev uri...@gmail.com wrote:



  I am developing an application which uses the camera of my G2. The
  code using the camera is showed below:

                  Camera cam = Camera.open();
                  if (cam == null) {
                          return;
                  }

                  cam.startPreview();

  It throws and  Exception and I do not know why. Someone has any
  idea?

  com.sun.jdi.InvocationException occurred invoking

  Regards
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Beginners group.
To post to this group, send email to android-beginners@googlegroups.com
To unsubscribe from this group, send email to
android-beginners-unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-beginners?hl=en
-~--~~~~--~~--~--~---

[android-beginners] Re: Invokation Exception

[MrChaz]

Have you added the Camera permission to the manifest?

On Jun 12, 11:32 am, Urizev uri...@gmail.com wrote:
 I am developing an application which uses the camera of my G2. The
 code using the camera is showed below:

                 Camera cam = Camera.open();
                 if (cam == null) {
                         return;
                 }

                 cam.startPreview();

 It throws and  Exception and I do not know why. Someone has any
 idea?

 com.sun.jdi.InvocationException occurred invoking

 Regards
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Beginners group.
To post to this group, send email to android-beginners@googlegroups.com
To unsubscribe from this group, send email to
android-beginners-unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-beginners?hl=en
-~--~~~~--~~--~--~---