Installing the Plugin causes Android app to crash

[hoi4]

Hi,

I generated a new IonicV3 project using ionic start myApp tabs --type=ionic-angular.
After installing the plugin using cordova plugin add cordova-plugin-lottie-splashscreen the app does not start anymore and crashes instantly.

I used logcat to get some logs:

02-08 08:19:26.951 29741 29741 E AndroidRuntime: FATAL EXCEPTION: main
02-08 08:19:26.951 29741 29741 E AndroidRuntime: Process: io.ionic.starter, PID: 29741
02-08 08:19:26.951 29741 29741 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{io.ionic.starter/io.ionic.starter.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.apache.cordova.CordovaPlugin.privateInitialize(java.lang.String, org.apache.cordova.CordovaInterface, org.apache.cordova.CordovaWebView, org.apache.cordova.CordovaPreferences)' on a null object reference
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3303)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3411)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.ActivityThread.-wrap12(Unknown Source:0)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1994)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:108)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.os.Looper.loop(Looper.java:166)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:7529)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at java.lang.reflect.Method.invoke(Native Method)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921)
02-08 08:19:26.951 29741 29741 E AndroidRuntime: Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void org.apache.cordova.CordovaPlugin.privateInitialize(java.lang.String, org.apache.cordova.CordovaInterface, org.apache.cordova.CordovaWebView, org.apache.cordova.CordovaPreferences)' on a null object reference
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at org.apache.cordova.PluginManager.getPlugin(PluginManager.java:171)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at org.apache.cordova.PluginManager.startupPlugins(PluginManager.java:97)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at org.apache.cordova.PluginManager.init(PluginManager.java:86)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at org.apache.cordova.CordovaWebViewImpl.init(CordovaWebViewImpl.java:117)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at org.apache.cordova.CordovaActivity.init(CordovaActivity.java:149)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at org.apache.cordova.CordovaActivity.loadUrl(CordovaActivity.java:224)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at io.ionic.starter.MainActivity.onCreate(MainActivity.java:39)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.Activity.performCreate(Activity.java:7383)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1218)
02-08 08:19:26.951 29741 29741 E AndroidRuntime:     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3256)

The same happens when using IonicV4.

I hope you can help me with that.
Thanks in advance!

[timbru31]

Hi,

could you please post the output of npx ionic info? Besides that, have you installed the plugin to an existing platform? Or first installed the plugin and then added the android platform? Have you made sure to correctly configure an animation location in the config.xml?

[hoi4]

Output of npx ionic info:

Ionic:

   ionic (Ionic CLI)  : 4.10.2 (/usr/local/lib/node_modules/ionic)
   Ionic Framework    : ionic-angular 3.9.3
   @ionic/app-scripts : 3.2.1

Cordova:

   cordova (Cordova CLI) : 8.1.2 (cordova-lib@8.1.1)
   Cordova Platforms     : android 7.1.4
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 3.1.2, (and 5 other plugins)

System:

   NodeJS : v10.15.0 (/usr/local/Cellar/node@10/10.15.0/bin/node)
   npm    : 6.7.0
   OS     : macOS Mojave
   Xcode  : Xcode 10.1 Build version 10B61

I have the problem in both cases:

• When first adding the platform and then installing the plugin
• When first installing the plugin and then adding the platform

When not configuring anything in config.xml, the app crashes.
When specifying a location of an animation, the app does not crash.
When specifying another preference besides LottieAnimationLocation the app crashes. (I tried setting LottieBackgroundColor)

Do I have to uninstall the standard splashscreen cordova plugin?

[timbru31]

You can install the other splash screen plugin, both can co-exist. Ideally you replace the “stock” splash screen plugin with this one. Some plugins like cordova-plugin-ionic has a dependency on the other splash plugin though. I’m going to add a small section in the README, to explain co-behavior.

Could you possibly share your config.xml?

[timbru31]

I believe this issue is caused by the installation flow: platform add android -> add plugin. In this case the required hook is not executed.
I'll update the plugin to execute the hook on plugin add, too.
The following command should fix the issue: node plugins/cordova-plugin-lottie-splashscreen/hooks/android/copy_build_extras.js

[marckassay]

I believe I had the same issue as @hoi4 but using Ionic 4 for Android. Executing @timbru31's copy_build_extras.js in CLI resolved the issue!

@timbru31 this is an awesome project, clean and well documented too! Thanks!

[Deusing]

I cannot get it to work :(

ionic start myApp tabs --type=ionic-angular
cd myApp && ionic cordova plugin add cordova-plugin-lottie-splashscreen
ionic cordova platform add android
ionic cordova run android

it just crashes.
Output from npx ionic info

Ionic:

   ionic (Ionic CLI)  : 4.12.0 (/usr/local/lib/node_modules/ionic)
   Ionic Framework    : ionic-angular 3.9.5
   @ionic/app-scripts : 3.2.2

Cordova:

   cordova (Cordova CLI) : 9.0.0
   Cordova Platforms     : android 8.0.0
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.0.1, (and 5 other plugins)

System:

   Android SDK Tools : 26.1.1 (/home/deusing/Android/Sdk)
   NodeJS            : v10.4.1 (/usr/local/bin/node)
   npm               : 6.9.0
   OS                : Linux 4.15

Any idea how to proceed?

[timbru31]

Please try installing the beta version.

…

Sent from my iPhone

On 21. Apr 2019, at 12:43 PM, Deusing ***@***.***> wrote: I cannot get it to work :( ionic start myApp tabs --type=ionic-angular cd myApp && ionic cordova plugin add cordova-plugin-lottie-splashscreen ionic cordova platform add android ionic cordova run android it just crashes. Output from npx ionic info Ionic: ionic (Ionic CLI) : 4.12.0 (/usr/local/lib/node_modules/ionic) Ionic Framework : ionic-angular 3.9.5 @ionic/app-scripts : 3.2.2 Cordova: cordova (Cordova CLI) : 9.0.0 Cordova Platforms : android 8.0.0 Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.0.1, (and 5 other plugins) System: Android SDK Tools : 26.1.1 (/home/deusing/Android/Sdk) NodeJS : v10.4.1 (/usr/local/bin/node) npm : 6.9.0 OS : Linux 4.15 — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub, or mute the thread.

[CarlosLopezR]

@timbru31 Hello, i am having the same issue but i cant find that file called copy_build_extras.js to execute it? what i am doing wrong? help me please!!

[timbru31]

Make double sure you are using cordova-android@9 and set the two flags from the readme, if it still not works open a new issue, follow the issue template please. (hooks are no longer needed)