There are things one may need to change in the release build for Android.
Things like App Name
are a case here. Suppose you start developing by initialising to a generic App Name
and at the time of release one need to change to the actual App Name
. Same goes for package name
, which is visible in Google Play Store
and as well in the App details
of the Android phone.
Generate with correct names
Before we move forward and change things in the final version of the app. There is a way to fix this from the beginning. Generate a react native
app with a proper package name with the command below.
react-native init MyAwesome -package "com.saumya.app"
But however if at all you have initialised the app as
react-native init RnApp
then the option remains to hack things in the end.
So read on.
App Name
Lets start with App Name
. This is the name thats visible in users screen. To change this name, you have to change it in strings.xml
.
Full path is
android/app/src/main/res/values/strings.xml
and the entry is
<string name="app_name">My Android App</string>
Package name
This is shown in the Play Store
and the details in About App
of your Android device. This should say something like com.myapp
or com.company.appname
or something similar.
To change this, you have to edit four files.
- android/app/src/main/java/com/reactNativeSampleApp/MainActivity.java
- android/app/src/main/java/com/reactNativeSampleApp/MainApplication.java
- android/app/src/main/AndroidManifest.xml ( optional as per my experience )
- android/app/build.gradle
The first two Java files have the package name as something like below.
package com.ReactNativeApp;
Change it to your desired package name.
package com.myComp.MyApp;
At this point it should be required to make the physical changes to the Java files in the proper package. But somehow it does not work! Rather it breaks the build. Just keep in mind, that we have changed the package
names and that should reflect in the actual package. Incase the builds break, you know where to find.
Version Code
This is a number which Google Playstore recognises and does not allow to upload another APK having the same value. Just think of this as build number. The same build can not be uploaded twice. So the point is everytime, you make a build or release-apk, you must have a different number or more specifically incremental number. If your first version of the application has a version code of 5, then the second version must have a version code which is more than 5.
Along with version code, you might need to update the version name
also. Which is the version number of your application and visible in Google Play Store.
While version code
is used by Play Store
to manage your APK, version name
is used by Play Store
to notify user that an update to your app is available.
To change these two values, you need to edit
- android/app/build.gradle
- android/app/src/main/AndroidManifest.xml ( optional as per my experience )
These settings are taken from build.gradle
while making a build with gradle
but for the purpose of sanity, its better to change in both of the files above.
Making the release build
Finally making a release build is done from inside the android
folder of the React Native
application. The commands are as below.
./gradlew clean
./gradlew assembleRelease
Cheers