I am getting a NullPointerException as below:
NullPointerException: Attempt to invoke virtual method 'android.support.v7.app.ActionBar MainActivity.getSupportActionBar()
I have tried the solutions mentioned in other posts but that doesn't seem to help. I do feel that the issue is around the appcompat version. But strange thing to note is that i have seen the issue appearing only after introducing Firebase library version 9.8.0. Not sure how this is connected.
Code snipper where error is thrown:
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser) {
((MainActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);
((MainActivity) getActivity()).setToolBarTitle(FragTitle);
}
}
App Gradle file content is shown below:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '25.0.0'
defaultConfig {
applicationId "com.pack.App1"
minSdkVersion 16
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
lintOptions {
abortOnError false
}
}
repositories {
maven { url "https://jitpack.io" }
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.squareup.picasso:picasso:2.5.0'
compile 'com.google.firebase:firebase-database:9.8.0'
compile 'com.google.firebase:firebase-storage:9.8.0'
compile 'com.google.firebase:firebase-auth:9.8.0'
compile 'com.android.support:cardview-v7:23.0.+'
compile 'com.android.support:recyclerview-v7:23.0.+'
compile ('com.android.support:appcompat-v7:23.1.0') { force=true; }
compile 'com.android.support:design:23.0.1'
compile 'com.github.PhilJay:MPAndroidChart:v2.2.4'
compile 'com.google.android.gms:play-services-auth:9.8.0'
}
apply plugin: 'com.google.gms.google-services'
Styles.xml content:
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
<item name="android:windowBackground">@drawable/background_splash</item>
</style>
<style name="Theme.AppCompat.Light.NoActionBar.FullScreen" parent="@style/Theme.AppCompat.Light">
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="android:windowFullscreen">true</item>
<item name="android:windowContentOverlay">@null</item>
</style>
<style name="MyMaterialTheme" parent="MyMaterialTheme.Base">
</style>
<style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
</resources>
Note that the issue not related to instantiation. The issue is observed only when I have below three lines for Firebase library in the gradle file else all works fine.
compile 'com.google.firebase:firebase-database:9.8.0'
compile 'com.google.firebase:firebase-storage:9.8.0'
compile 'com.google.firebase:firebase-auth:9.8.0'
I don't see this issue when I use older version of firebase libraries below.
compile 'com.google.firebase:firebase-database:9.2.1'
compile 'com.google.firebase:firebase-storage:9.2.1'
compile 'com.google.firebase:firebase-auth:9.2.1'
This issue seems strange and not sure how to fix this. I need higher version of firebase as sendEmailVerification is supported only in this higher version.
