Develop Reference

Simple Firebase notification not working on Android

So, I've been trying for hours to make notification works but without success.
My goal is to send a notification from the Firebase console and receive it on the phone. This means that I should only add the library to my application and configure a project on Firebase.
In my app I'm already using firebase for storage, analytics and ads without problem.
I've followed the official tutorial and also this video
I've not added the service in the manifest because I don't need to do any particular message handling
This is my manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.domain.myapp">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<application
android:name=".App"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.myapp">
<activity android:name="com.domain.myapp.MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:requestLegacyExternalStorage="true"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/provider_paths"/>
</provider>
<meta-data
android:name="com.google.android.gms.ads.APPLICATION_ID"
android:value="myid"/>
</application>
</manifest>
root level build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = "1.4.20"
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:4.1.3'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.google.gms:google-services:4.3.5'
def nav_version = "2.3.4"
classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
Application level build file
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-android-extensions'
id 'androidx.navigation.safeargs.kotlin'
id 'kotlin-kapt'
id 'com.google.gms.google-services'
}
android {
signingConfigs {
release {
storeFile file('keystore')
storePassword 'psw'
keyAlias 'key0'
keyPassword 'psw'
}
}
compileSdkVersion 30
buildToolsVersion "29.0.3"
defaultConfig {
applicationId "com.domain.myapp"
minSdkVersion 22
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
def AD_UNIT_ID = "AD_UNIT_ID"
debug {
buildConfigField "String", AD_UNIT_ID, AD_UNIT_ID_TEST
}
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
buildConfigField "String", AD_UNIT_ID, AD_UNIT_ID_PROD
signingConfig signingConfigs.release
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'com.google.firebase:firebase-storage:19.2.1'
implementation 'com.google.firebase:firebase-messaging-ktx:21.0.1'
implementation 'com.google.firebase:firebase-analytics-ktx:18.0.2'
def nav_version = "2.3.4"
implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
implementation "androidx.navigation:navigation-dynamic-features-fragment:$nav_version"
implementation "androidx.navigation:navigation-compose:1.0.0-alpha09"
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.3.2'
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.3.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
implementation("com.github.bumptech.glide:glide:4.12.0")
implementation("com.github.bumptech.glide:recyclerview-integration:4.11.0")
kapt 'com.github.bumptech.glide:compiler:4.12.0'
implementation 'com.firebaseui:firebase-ui-storage:7.1.1'
implementation 'com.github.smarteist:autoimageslider:1.4.0'
implementation 'com.google.android.gms:play-services-ads:19.8.0'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}
This is my App class:
class App: Application() {
override fun onCreate() {
super.onCreate()
MobileAds.initialize(this)
}
}
And this is my main activity:
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
setupAdViewInto(adContainer)
}
private fun setupAdViewInto(adContainer: LinearLayout, adSize: AdSize = SMART_BANNER) {
val adView = AdView(this)
adView.adSize = adSize
adView.adUnitId = AD_UNIT_ID
adContainer.addView(adView)
adView.loadAd(AdRequest.Builder().build())
}
}
On the firebase console I see this:
Note: I've tried crating a new app from scratch and to do the same operation and that it's working!

I got it working, but I don't know how... I'm thinking is Android Studio's fault.
I've done these steps
created a new project on firebase
downloaded and imported the new google-services.json
cleaned cache data and reinstalled the app on the emulator using the button Run 'app' from Android Studio
the app is still showing stuff from the old firebase application, like it's using the old google-services.json
deleted gradle's build folder from Android Studio
reinstalled the app as before using the old configuration
notifications are now working
WTF!??
I'm thinking that the problem was due to gralde/android studio.
I've lost like 5 hours on this... I love programming :) :)

Android Studio generated apk installs but doesn't open

I have installed my apk bundle that I created via Build APK(s) and it installs but won't let me open it, and it doesn't show in the menu.
I've already checked Project/App/src/main/AndroidManifest.xml and Project/build.gradle and settings.gradle as well but I don't find anything odd.
android:protectionLevel="signature" is not in any of the previous files.
minifyEnabled is FALSE
I've read somewhere to edit my manifest and add or something (I can't find the post right now). I did it, and the app began to have gradle errors, and showed me another manifest that had those lines written.
Here's my Project/App/src/main/AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.multicobertura">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.Multicobertura" />
</manifest>
build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:4.1.0"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
settings.gradle
include ':app'
rootProject.name = "multicobertura"
I am clueless
EDIT: I tried adding "entry points"
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.multicobertura">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.Multicobertura" />
<activity
android:name=".NewEntryPoint"
android:label="#string/title_activity_second" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</manifest>
But
build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath "com.android.tools.build:gradle:4.1.0"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
app build.gradle
plugins {
id 'com.android.application'
}
android {
compileSdkVersion 30
buildToolsVersion "30.0.2"
defaultConfig {
applicationId "com.example.multicobertura"
minSdkVersion 16
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
}
dependencies {
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'com.google.android.material:material:1.2.1'
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}
EDIT2: I've already created a new android studio project, copied the files and yarn insalled the modules, built the app and failed as well. Anyone?

Unresolved class .MainActivity (and all my other classes)

I'm getting the error unresolved class in my AndroidManifest.xml (and my xml classes under tools:context="...">
However there were 0 errors in my gradle rebuild so I'm not sure where the problem is.
There are no red lines in my app gradle file:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.krousorati.truthordare"
minSdkVersion 24
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
...
def nav_version = "1.0.0-alpha11"
implementation "android.arch.navigation:navigation-fragment:$nav_version" // use -ktx for Kotlin
implementation "android.arch.navigation:navigation-ui:$nav_version" // use -ktx for Kotlin
}
Any idea what the problem is?
And my Project gradle:
buildscript {
ext.kotlin_version = '1.3.0'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
And here is my Android manifest file:
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<meta-data
android:name="preloaded_fonts"
android:resource="#array/preloaded_fonts"/>
</application>

android:name=".MainActivity" is a relative class name; expecting MainActivity.kt at the root directory of the package; most likely it is located in a sub-directory and therefore cannot be found. either try fixing the relative class name - or simply use a fully qualified class name. unless knowing how the directory structre looks alike it's difficult to tell, but it might be something along the lines of .activity.MainActivity or com.krousorati.truthordare.activity.MainActivity.
just see what the package statement in MainActivity.kt says.

How to fix VectorDrawableCompat configuration error in Android Studio?

I created a project in Android studio. Even without modifying any single character in the project I cannot run it. It gives following error.
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.kk.myapplication/com.kk.myapplication.MainActivity}:
java.lang.IllegalStateException: This app has been built with an
incorrect configuration. Please configure your build for
VectorDrawableCompat.
These are the codes.
MainActivity.java :
package com.kk.myapplication;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
Manifest.xml :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.kk.myapplication">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
build.gradle :
apply plugin: 'com.android.application'
android {
compileSdkVersion 24
buildToolsVersion "24.0.0"
defaultConfig {
applicationId "com.kk.myapplication"
minSdkVersion 19
targetSdkVersion 24
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:24.2.0'
}
build.gradle(Top Level)
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
How can I fix this issue? I did not change anything in the project Any Help be Appreciated.

Here you will get this issue.
https://code.google.com/p/android/issues/detail?id=214182
Solution was to upgrade the gradle plugin to v2.0+ (upgraded to 2.1.0)
add this in your dependency.
{
classpath 'com.android.tools.build:gradle:2.1.0'
}
and sync the project.
Edit :
change this
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
to this
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}

This is old, but another option might be for your activity to inherit from Activity instead of AppCompatActivity. There's probably a variety of other considerations that might come into play, but that worked for me.

Seems this is an issue with incompatible gradle version reported here.. Google issue
Updatating gradle version may fix this -
buildscript {
...
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
}
}

Add into your build.gradle files
defaultConfig {
applicationId "com.example.myApp"
minSdkVersion 14
targetSdkVersion 24
versionCode 1
versionName "1.0"
generatedDensities = []
}
// This is handled for you by the 2.0+ Gradle Plugin
aaptOptions {
additionalParameters "--no-version-vectors"
}

Git submodule causing Failure [INSTALL_FAILED_OLDER_SDK] Android sdk 21

I am working on an app and trying to use the new material design, aka sdk version 21.
I had everything working fine, and then wanted to at a fab (floating action button) using this library.
I added this library as a submodule, using
git submodule add https://github.com/shamanland/floating-action-button
while under C:\Users\USER\AndroidStudioProjects\ProjectName
My file structure looks like so
ProjectName
app
floating-action-button
The issue
Before everything was totally fine, I was able to build and run the project.
But, ever since adding this submodule, when trying to run it, I get the error
Failure [INSTALL_FAILED_OLDER_SDK]
So I'm thinking it has to do with the submodule, but I'm not sure how.
app/build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 21
buildToolsVersion '21.0.2'
defaultConfig {
applicationId "com.mayuonline.ribbit"
minSdkVersion 21
targetSdkVersion 21
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:support-v4:21.+'
compile 'com.android.support:cardview-v7:+'
compile 'com.android.support:recyclerview-v7:+'
compile 'com.android.support:palette-v7:+'
}
app/AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="resume.kelseyhrubes">
<uses-sdk tools:node="replace" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
f-a-b/build.gradle
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.12.2'
classpath 'com.jakewharton.sdkmanager:gradle-plugin:0.12.0'
classpath 'org.robolectric:robolectric-gradle-plugin:0.11.0'
}
}
def isSnapshot() {
return VERSION_NAME.contains('SNAPSHOT')
}
def gradleMvnPush = new File(buildDir, 'gradle-mvn-push.gradle')
if (!gradleMvnPush.exists()) {
buildDir.mkdirs()
ant.get(src: GRADLE_MVN_PUSH, dest: gradleMvnPush)
}
setProperty('GRADLE_MVN_PUSH', gradleMvnPush)
subprojects {
group GROUP
version VERSION_NAME
apply plugin: 'android-sdk-manager'
if (name.startsWith('lib')) {
apply plugin: 'com.android.library'
} else {
apply plugin: 'com.android.application'
}
android {
compileSdkVersion COMPILE_SDK_VERSION as int
buildToolsVersion BUILD_TOOLS_VERSION
defaultConfig {
minSdkVersion MIN_SDK_VERSION as int
targetSdkVersion TARGET_SDK_VERSION as int
versionCode 1
versionName '1.0'
// workaround for https://code.google.com/p/android/issues/detail?id=52962
buildConfigField 'boolean', 'SNAPSHOT', isSnapshot().toString()
}
lintOptions {
abortOnError false
}
}
repositories {
mavenLocal()
mavenCentral()
}
if (isSnapshot()) {
apply plugin: 'robolectric'
dependencies {
// NOTE workaround for sdkmanager plugin
compile 'com.android.support:support-v4:19.0.1'
androidTestCompile 'junit:junit:4.10'
androidTestCompile 'org.robolectric:robolectric:2.3'
androidTestCompile 'com.squareup:fest-android:1.0.8'
}
}
}
f-a-b/AndroidManifest.xml (probably a clue here, I (tried to) bold the areas that Android Studio has turned red
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android=" **http://schemas.android.com/apk/res/android** "
package="com.shamanland.fab.example">
<application
android:name=" **.ExampleApplication** "
android:label="#string/app_name"
**android:icon** ="#drawable/ic_launcher"
**android:theme** ="#style/AppTheme"
**android:allowBackup** ="true"
>
<activity android:name=".ExampleListActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity android:name=" **.ExampleDetailsActivity** "/>
</application>
</manifest>
I have a strong suspicion that the submodule was added incorrectly.
Really all I want is to use a fab in my app, if anyone can help me figure out what may be wrong, with adding the submodule, or something with my build.gradle, that would really be appreciated!!

This error is usually caused by deploying an APK built with "compileSdkVersion n" to a device or emulator with an API level less than "n". Is your emulator at the right API level?