Get Android application version?

Within your build.gradle you can define the versionName , which is a String that indicates the version:

android {
        ...
        versionCode 1
        versionName "(v. 1.3)"
        ...
    }

these values can also be defined within your file AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jorgesys.ussd"
    android:versionCode="1"
    android:versionName="(v. 1.3)">

just remember that the setting of build.gradle always overwrites the one in the file AndroidManifest.xml

Given the above, you can get the value of versionName in this way :

public String getVersionName(Context ctx){
    try {
    return ctx.getPackageManager().getPackageInfo(getPackageName(), 0).versionName;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return "";
    }
}

another way is simply (requires the project to be built):

public String getVersionName(){
     return BuildConfig.VERSION_NAME;
 }

The String value of versionName can be concatenated to the name of your application.

You can even define as versionName the value Liturgia+ (v. 1.3) , example:

android {
        ...
        versionCode 1
        versionName "Liturgia+ (v. 1.3)"
        ...
    }

I think it's not possible to do that, what you can do is get the versionName from the gradle using code, and then concatenate in code but not XML

To obtain the versionName you use the following code:

    try {
        PackageInfo pInfo = this.getPackageManager().getPackageInfo(getPackageName(), 0);
        String version = pInfo.versionName;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
    }