Failed to connect to camera service

Question

I m trying to access the camera on my phone  I m writing a simple stub app prior to putting the code in a widget  I m not getting very far  The code always throws a runtime exception  failed to connect to camera service  The code pinched from a commonsware example  which goes wrong is        Override     public void onResume             super onResume            if  Build VERSION SDK INT  gt   Build VERSION CODES GINGERBREAD                Camera CameraInfo info   new Camera CameraInfo                for  int i   0  i  lt  Camera getNumberOfCameras    i                      Camera getCameraInfo i  info                   if  info facing    Camera CameraInfo CAMERA FACING BACK                        try                              Gets to here OK                         camera   Camera open i                         catch  Exception e                            e printStackTrace                                throws runtime exception   Failed to connect to camera service                                                                      and my manifest is  corrected 20th Oct      lt  xml version  1 0  encoding  utf-8   gt   lt manifest xmlns android  http   schemas android com apk res android      package  com nbt cameratest      android versionCode  1      android versionName  1 0   gt       lt uses-sdk android minSdkVersion  9    gt       lt application         android icon   drawable ic launcher          android label   string app name   gt           lt activity             android label   string app name              android name   CameraTestActivity   gt               lt intent-filter  gt                   lt action android name  android intent action MAIN    gt                   lt category android name  android intent category LAUNCHER    gt               lt  intent-filter gt           lt  activity gt                lt uses-permission android name  android permission CAMERA    gt               lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt       lt  application gt   lt  manifest gt    Can anyone please suggest what might be wrong   UPDATE 20th Oct  Logcat in SDK 4 0 is broken and wont show the end of the log  so I ve cut this bit as best as I can from command line adb logcat   W ServiceManager  2588   Permission failure  android permission CAMERA from uid 10136 pid 5744 E CameraService  2588   Permission Denial  can t use the camera pid 5744  uid 10136 W System err  5744   java lang RuntimeException  Fail to connect to camera service W System err  5744      at android hardware Camera native setup Native Method  W System err  5744      at android hardware Camera  lt init gt  Camera java 294  W System err  5744      at android hardware Camera open Camera java 255  etc     I don t know why I haven t permission as it is declared in the manifest

User · Answer

The problem is related to permission  Copy following code into onCreate   method  The issue will get solved   if  Build VERSION SDK INT  gt   Build VERSION CODES M        if  checkSelfPermission Manifest permission CAMERA     PackageManager PERMISSION GRANTED            requestPermissions new String    Manifest permission CAMERA   1             After that wait for the user action and handle his decision    Override public void onRequestPermissionsResult int requestCode  String permissions    int   grantResults        switch  requestCode            case CAMERA PERMISSION REQUEST CODE                 If request is cancelled  the result arrays are empty              if  grantResults length  gt  0  amp  amp  grantResults 0     PackageManager PERMISSION GRANTED                      Start your camera handling here               else                   AppUtils showUserMessage  You declined to allow the app to access your camera   this

User · Answer

I had the same issue  Tried all the solutions mentioned here but nothing worked  So i rebooted my device and suddenly the issue solved

User · Answer

I know this question has been answered long time ago  but I would like to add a small thing   To everyone having the same error  make sure to add this permission in you manifest file    lt uses-permission android name  android permission CAMERA    gt    IMPORTANT to use the CAPITAL letters for CAMERA  as I had the permission with small letters and it didn t work

User · Answer

For newer android versions that support setting permissions per app  since Marshmallow  6 0  the permission for camera could be disabled and should be enabled from the app settings

User · Answer

when you use camera open  and you finish using  the camera write this commend camera release    this will stop the camera so you can use it again

User · Answer

running your code hundred times may affect the camera to function wrongly Your activity may be performing correctly but system could not buy it so camera forces stop  One main tip all missed is rebooting your phone and not only eclipse  It worked for me

User · Answer

since this question was asked 4 years back  and i didn t realised that unless mentioned by the Questioner  when there were no Run time permissions support   but hoping it useful for the users who still caught in this situation   Have a look at Run Time Permissions  for me it solved the problem when i added Run time permissions to grant camera access  Alternatively you can grant permissions to the app manually by going to your mobile settings  Apps   select your app   Permissions section in the appeared window and enable disable desired permissions  hope this will work

User · Answer

I came up with the same problem and I m sharing how I fixed it  It may help some people   First  check your Android version  If it is running on Android 6 0 and higher  API level 23    then you need to     Declare a permission in the app manifest  Make sure to insert the permission above the application tag         lt uses-permission android name  android permission CAMERA    gt   lt uses-feature android name  android hardware camera    gt      lt application     gt           lt  application gt       Then  request that the user approve each permission at runtime    if  ContextCompat checkSelfPermission thisActivity  Manifest permission CAMERA         PackageManager PERMISSION GRANTED       here  Permission is not granted ActivityCompat requestPermissions this  new String    android Manifest permission CAMERA   50        For more information  have a look at the API documentation here

User · Answer

Make sure to call the release   method to release the camera when it is no longer needed  or you will not be able to use the camera   Perhaps as a sanity check  see if your regular camera works   If it says it fails  then your previous attempts at runni

User · Answer

Few things    Why are your use-permissions and use-features tags in your activity tag  Generally  permissions are included as direct children of your  lt manifest gt  tag  This could be part of the problem  According to the android camera open documentation  a runtime exception is thrown       if connection to the camera service fails  for example  if the camera is in use by another process or device policy manager has disabled the camera    Have you tried checking if the camera is being used by something else or if your policy manager has some setting where the camera is turned off  Don t forget the  lt uses-feature android name  android hardware camera autofocus    gt  for autofocus    While I m not sure if any of these will directly help you  I think they re worth investigating if for no other reason than to simply rule out  Due diligence if you will   EDIT As mentioned in the comments below  the solution was to move the uses-permissions up to above the application tag

[android] Failed to connect to camera service

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