Firebase implementation in flutter issues - firebase

Question

I am having a lot of issues with implementing firebase in my flutter project, I had to revert back from 4.3 to 4.2 because of gradle errors. Now it is taking forever to load it on my emulator, I switched to an actual device but that install wont open. Has anyone implemented firebase messaging in a flutter project recently? I’m about to scrap the whole idea of using it.
Ive added the required lines to build.gradle and app/build.gradle and to my yaml file and thats it.

Answer 1

I have it working as of today (2019-09-27 20:00 UTC, because flutter builds can break at any moment), and I'll let you know what I have in my build in order to get it to work (bit too long for a comment). I have tested that it works in both iOS and Android and builds correctly for release.
Firstly, switch to the flutter master channel flutter channel master. This is to fix a gradle appbundle naming issue.
pubspec.yaml
dependencies:
firebase_messaging: ^5.1.6
android/build.gradle (note the change in gradle version)
buildscript {
ext.kotlin_version = '1.3.41'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.google.gms:google-services:4.3.2'
}
}
android/gradle.properties (change for AndroidX)
android.enableJetifier=true
android.useAndroidX=true
android/gradle/wrapper/gradle-wrapper.properties
distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
android/app/build.gradle
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
implementation 'com.google.firebase:firebase-messaging:20.0.0'
}
apply plugin: 'com.google.gms.google-services'
In the same file make sure in the defaultConfig section you've changed the testInstrumentationRunner as follows:
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
android/app/src/main/AndroidManifest.xml
<intent-filter>
<action android:name="FLUTTER_NOTIFICATION_CLICK" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
Make sure you've added your google-services.json to android/app folder. I assume at some point this will all be nicely documented but at the moment it's a bit wild-west.