How get permission for camera in android Specifically Marshmallow

Question

Hey I am designing  an app in android studio  In which i require permission of camera  I have included  lt uses-permission android name  android permission CAMERA    gt    in the the AndroidManifest xml file  It is working properly in all versions of android except Marshmallow  How do I get camera permission by default  If not possible how do I ask it from user

User · Answer

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Before get permission you can check api version,

  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
  {
      if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {

      } 
      else
      {
         ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 401);
      }
  }
  else
  {
    // if version is below m then write code here,          
  }

Get the Result of the permission dialog,

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (requestCode == 401) {
        if (grantResults.length == 0 || grantResults == null) {

        } else if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            openGallery();
        } else if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
        }
    } else if (requestCode == 402) {
        if (grantResults.length == 0 || grantResults == null) {

        } else if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {

        } else if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
        }
    }
}

User · Answer

check using this if  ContextCompat checkSelfPermission this  android Manifest permission CAMERA                 PackageManager PERMISSION DENIED    and

User · Answer

First check if the user has granted the permission   if  ContextCompat checkSelfPermission context  Manifest permission CAMERA         PackageManager PERMISSION DENIED    Then  you could use this to request to the user   ActivityCompat requestPermissions activity  new String    Manifest permission CAMERA   requestCode     And in Marshmallow  it will appear in a dialog

User · Answer

I try to add following code  private static final int MY CAMERA REQUEST CODE   100    RequiresApi api   Build VERSION CODES M   if  checkSelfPermission Manifest permission CAMERA     PackageManager PERMISSION GRANTED            requestPermissions new String   Manifest permission CAMERA   MY CAMERA REQUEST CODE          On onCreate Function and this following code   Override public void onRequestPermissionsResult int requestCode   NonNull String   permissions   NonNull int   grantResults        super onRequestPermissionsResult requestCode  permissions  grantResults       if  requestCode    MY CAMERA REQUEST CODE            if  grantResults 0     PackageManager PERMISSION GRANTED                Toast makeText this   quot camera permission granted quot   Toast LENGTH LONG  show              else               Toast makeText this   quot camera permission denied quot   Toast LENGTH LONG  show                       And this worked for me

User · Answer

Requesting Permissions In the following code  we will ask for camera permission   in java  EasyPermissions is a wrapper library to simplify basic system permissions logic when targeting Android M or higher   Installation EasyPermissions is installed by adding the following dependency to your build gradle file   dependencies           For developers using AndroidX in their applications     implementation  pub devrel easypermissions 3 0 0          For developers using the Android Support Library     implementation  pub devrel easypermissions 2 0 1       private void askAboutCamera             EasyPermissions requestPermissions                  this                   A partir deste ponto a permiss  o de c  mera    necess  ria                    CAMERA REQUEST CODE                  Manifest permission CAMERA

User · Answer

You can try the following code to request camera permission in marshmallow  First check if the user grant the permission  If user has not granted the permission  then request the camera permission   private static final int MY CAMERA REQUEST CODE   100   if  checkSelfPermission Manifest permission CAMERA     PackageManager PERMISSION GRANTED        requestPermissions new String   Manifest permission CAMERA   MY CAMERA REQUEST CODE       After requesting the permission  dialog will display to ask permission containing allow and deny options  After clicking action we can get result of the request with the following method    Override public void onRequestPermissionsResult int requestCode   NonNull String   permissions   NonNull int   grantResults        super onRequestPermissionsResult requestCode  permissions  grantResults       if  requestCode    MY CAMERA REQUEST CODE            if  grantResults 0     PackageManager PERMISSION GRANTED                Toast makeText this   camera permission granted   Toast LENGTH LONG  show              else               Toast makeText this   camera permission denied   Toast LENGTH LONG  show

User · Answer

This works for me  the source is here   int MY PERMISSIONS REQUEST CAMERA 0     Here  this is the current activity if  ContextCompat checkSelfPermission this  Manifest permission CAMERA     PackageManager PERMISSION GRANTED         if  ActivityCompat shouldShowRequestPermissionRationale this  Manifest permission CAMERA                       else                  ActivityCompat requestPermissions this new String   Manifest permission CAMERA   MY PERMISSIONS REQUEST CAMERA                 MY PERMISSIONS REQUEST READ CONTACTS is an              app-defined int constant  The callback method gets the              result of the request

[android] How get permission for camera in android.(Specifically Marshmallow)

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