[Android] Dexter Library

쉽고 간단하게 사용할 수 있는 Runtime Permission Library

• Dependency

  dependencies{
      implementation 'com.karumi:dexter:6.2.1'
  }

• AndroidManifest
  AndroidManifest에 필요한 uses-permission 추가

  <?xml version="1.0" encoding="utf-8"?>
  <manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="your package name" >
      <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
      <uses-permission android:name="android.permission.CAMERA"/>
      ...
  </manifest>

• Single Permission
  액티비티에서 퍼미션 체크, PermissionListener 지정

  class MainActivity : AppCompatActivity(), PermissionListener {
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          setContentView(R.layout.activity_main)
          Dexter.withContext(this)
              .withPermission(Manifest.permission.CAMERA)
              .withListener(this)
              .check()
      }
      override fun onPermissionGranted(response: PermissionGrantedResponse) {
          // This method will be called when the permission is denied
      }
      override fun onPermissionRationaleShouldBeShown(permission: PermissionRequest, token: PermissionToken?) {
          // This method will be called when the user rejects a permission request
          // You must display a dialog box that explains to the user why the application needs this permission
      }
      override fun onPermissionDenied(response: PermissionDeniedResponse) {
          // This method will be called when the permission is granted
      }
  }

• Multiple Permissions
  싱글 퍼미션과 비슷, 다만 여러 퍼미션을 리스트로 묶어서 한번에 요청, MultiplePermissionsListener 지정

  class MainActivity : AppCompatActivity(), MultiplePermissionsListener {
      override fun onCreate(savedInstanceState: Bundle?) {
          super.onCreate(savedInstanceState)
          setContentView(R.layout.activity_main)
          val permissions = listOf(
              Manifest.permission.CAMERA,
              Manifest.permission.SEND_SMS
          )
          Dexter.withContext(this)
              .withPermissions(permissions)
              .withListener(this)
              .check()
      }
      override fun onPermissionRationaleShouldBeShown(permissions: MutableList<PermissionRequest>, token: PermissionToken) {
          // This method will be called when the user rejects a permission request
          // You must display a dialog box that explains to the user why the application needs this permission
      }
      override fun onPermissionsChecked(report: MultiplePermissionsReport) {
          // Here you have to check granted permissions
      }
  }

• References

  Dexter