React-native-track-player: On Android app crashed after installing

[waheedakhtar694]

Configuration

info
React Native Environment Info:
System:
OS: macOS 10.14.6
CPU: (4) x64 Intel(R) Core(TM) i7-5557U CPU @ 3.10GHz
Memory: 613.13 MB / 8.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 10.16.2 - /usr/local/bin/node
Yarn: 1.12.3 - /usr/local/bin/yarn
npm: 6.9.0 - /usr/local/bin/npm
SDKs:
iOS SDK:
Platforms: iOS 11.4, macOS 10.13, tvOS 11.4, watchOS 4.3
Android SDK:
API Levels: 22, 23, 24, 25, 26, 27, 28, 29
Build Tools: 23.0.1, 25.0.3, 26.0.2, 27.0.3, 28.0.3
System Images: android-18 | Google APIs ARM EABI v7a, android-21 | Google APIs ARM EABI v7a, android-21 | Google APIs Intel x86 Atom, android-21 | Google APIs Intel x86 Atom_64, android-22 | Google APIs ARM EABI v7a, android-22 | Google APIs Intel x86 Atom, android-22 | Google APIs Intel x86 Atom_64, android-23 | Google APIs ARM EABI v7a, android-23 | Google APIs Intel x86 Atom, android-23 | Google APIs Intel x86 Atom_64, android-24 | Google APIs ARM EABI v7a, android-24 | Google APIs Intel x86 Atom, android-24 | Google APIs Intel x86 Atom_64, android-25 | Google APIs ARM 64 v8a, android-25 | Google APIs ARM EABI v7a, android-25 | Google APIs Intel x86 Atom, android-25 | Google APIs Intel x86 Atom_64, android-25 | Google Play Intel x86 Atom, android-26 | Google APIs Intel x86 Atom, android-26 | Google APIs Intel x86 Atom_64, android-27 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom, android-28 | Google APIs Intel x86 Atom_64, android-29 | Intel x86 Atom, android-29 | Intel x86 Atom_64, android-29 | Google APIs Intel x86 Atom_64, android-29 | Google Play Intel x86 Atom
IDEs:
Android Studio: 3.4 AI-183.6156.11.34.5522156
Xcode: 9.4.1/9F2000 - /usr/bin/xcodebuild
npmPackages:
react: 16.6.1 => 16.6.1
react-native: 0.59.3 => 0.59.3
npmGlobalPackages:
react-native-cli: 2.0.1
react-native-git-upgrade: 0.2.7

Issue

i Just installed the the version 1.1.8 from yarn linked on android and ios it runs fine on IOS but when run on the app got crashed.

[maendamedia]

Same issue here.

I see this error in logs when i try to run:

08-20 22:01:40.713 11360 11360 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
08-20 22:01:40.713 11360 11360 E AndroidRuntime:    at com.guichaguri.trackplayer.service.metadata.MetadataManager.updateOptions(MetadataManager.java:112)
08-20 22:01:40.713 11360 11360 E AndroidRuntime:    at com.guichaguri.trackplayer.service.MusicBinder.updateOptions(MusicBinder.java:45)
08-20 22:01:40.713 11360 11360 E AndroidRuntime:    at com.guichaguri.trackplayer.module.MusicModule.onServiceConnected(MusicModule.java:74)
08-20 22:01:40.713 11360 11360 E AndroidRuntime:    at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1516)
08-20 22:01:40.713 11360 11360 E AndroidRuntime:    at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1544)

Btw i use the latest version, but also the 1.1.8 has the same problem :(

[rennanribeiro]

Same here.

> AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.Integer.intValue()' on a null object reference
> AndroidRuntime:   at com.guichaguri.trackplayer.service.metadata.MetadataManager.updateOptions(MetadataManager.java:112)
> AndroidRuntime:   at com.guichaguri.trackplayer.service.MusicBinder.updateOptions(MusicBinder.java:45)
> AndroidRuntime:   at com.guichaguri.trackplayer.module.MusicModule.onServiceConnected(MusicModule.java:74)
> AndroidRuntime:   at android.app.LoadedApk$ServiceDispatcher.doConnected(LoadedApk.java:1652)
> AndroidRuntime:   at android.app.LoadedApk$ServiceDispatcher$RunConnection.run(LoadedApk.java:1681)
> AndroidRuntime:   at android.os.Handler.handleCallback(Handler.java:790)
> AndroidRuntime:   at android.os.Handler.dispatchMessage(Handler.java:99)
> AndroidRuntime:   at android.os.Looper.loop(Looper.java:164)
> AndroidRuntime:   at android.app.ActivityThread.main(ActivityThread.java:6543)
> AndroidRuntime:   at java.lang.reflect.Method.invoke(Native Method)
> AndroidRuntime:   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:440)
> AndroidRuntime:   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:810)

[psegalen]

Hi! I had the same issue but @dcvz's comment (https://github.com/react-native-kit/react-native-track-player/issues/668#issuecomment-511806298) pointed me in the right direction:

Was importing constants like this:

import TrackPlayer, {
  CAPABILITY_PLAY,
  CAPABILITY_PAUSE
} from "react-native-track-player";

Before using in TrackPlayer.updateOptions()
Had to replace it by:

import TrackPlayer, { Capability } from "react-native-track-player";

This fixed the crash!

[Guichaguri]

This issue happens when you pass a null/undefined value to the capabilities option. Figure out what is null/undefined, remove it and it should stop crashing.