googlesamples/easypermissions

java.lang.NullPointerException

Open

#278 opened on Mar 21, 2019

View on GitHub
 (12 comments) (2 reactions) (0 assignees)Java (9,780 stars) (1,486 forks)batch import
bughelp wanted

Description

Basic Information

Device type: huawei____ OS version: android 6.0____ EasyPermissions version: 2.0.1

Describe the problem

What happened? What did you expect to happen? when I call AppSettingsDialog show

Code and logs

java.lang.RuntimeException:Unable to start activity ComponentInfo{com.qiushibaike.inews/pub.devrel.easypermissions.AppSettingsDialogHolderActivity}: java.lang.NullPointerException: Attempt to invoke direct method 'void vy.֏(java.lang.Object)' on a null object reference
--
2 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2479)
3 ......
4 Caused by:
5 java.lang.NullPointerException:Attempt to invoke direct method 'void vy.֏(java.lang.Object)' on a null object reference
6 vy.֏(AppSettingsDialog.java:85)
7 pub.devrel.easypermissions.AppSettingsDialogHolderActivity.onCreate(AppSettingsDialogHolderActivity.java:31)
8 android.app.Activity.performCreate(Activity.java:6372)

// TODO(you): show the code that produces the problem,
//            and any relevant logs.

Contributor guide

Tech stack
javaandroid
Domain
mobile
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Android SDKJavaEasyPermissions library
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40
Research direction
The crash occurs due to a NullPointerException in AppSettingsDialog.java line 85 and AppSettingsDialogHolderActivity.java line 31. The issue is likely a null reference when calling a method on an object. Investigate the object that is null, possibly the 'vy' instance or a parameter passed to the dialog. Check the library's source code for the relevant lines and ensure proper null checks. Look for any recent changes in the repository that might have fixed similar issues.