Permission request flow in Android Kotlin - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of requesting permissions at runtime in Android?

To protect user privacy by asking for permission only when the app needs access to sensitive features like camera, location, or contacts.

beginner

Which Android API level introduced runtime permission requests?

Android 6.0 (API level 23) introduced runtime permission requests.

beginner

What method do you use to check if a permission is already granted?

Use ContextCompat.checkSelfPermission(context, permission) which returns PackageManager.PERMISSION_GRANTED or PackageManager.PERMISSION_DENIED.

beginner

How do you request permissions from the user in an Activity?

Call ActivityCompat.requestPermissions(activity, arrayOf(permission), requestCode) to show the permission dialog.

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What callback handles the user's response to a permission request?

The onRequestPermissionsResult(requestCode, permissions, grantResults) callback receives the user's decision.

At what point should you request a dangerous permission in Android?

A When the app is installed

B Never

C Before the app launches

D When the user tries to use a feature that needs the permission

Request permissions only when the user tries to use a feature that requires it, to respect user privacy.

Which method checks if a permission is granted?

A checkPermissionGranted()

B requestPermissions()

C ContextCompat.checkSelfPermission()

D onRequestPermissionsResult()

ContextCompat.checkSelfPermission() returns whether the permission is granted or denied.

What does ActivityCompat.requestPermissions() do?

A Shows a dialog to ask the user for permission

B Checks if permission is granted

C Revokes a permission

D Starts a new activity

It shows the system dialog asking the user to grant or deny the requested permissions.

Which callback receives the user's permission decision?

A onRequestPermissionsResult()

B onPermissionResult()

C onPermissionGranted()

D onUserResponse()

onRequestPermissionsResult() is called with the user's response to the permission request.

If a user denies a permission, what should your app do?

A Crash immediately

B Explain why the permission is needed and offer to request again

C Keep requesting permission repeatedly without explanation

D Ignore the permission and continue as if granted

You should politely explain why the permission is needed and ask again if appropriate.

Describe the steps to request a dangerous permission at runtime in an Android app.

Think about checking first, then asking, then reacting.

Explain why Android requires runtime permission requests instead of asking all permissions at install time.

Consider how users feel about privacy and control.