Innova Innova - 4 months ago 19
Android Question

BuildConfig not getting created correctly (Gradle Android)

I am trying to convert our Android application to a gradle build. I have the project and it's libraries building successfully. I am now trying to create separate apks for our various environments (dev/test/prod have different urls for the restful services they consume).

In searching around, the best way that I feel to do this is with making different BuildConfig for each environment. This is what I tried:

import java.util.regex.Pattern

buildscript {
repositories {
mavenCentral()
}

dependencies {
classpath 'com.android.tools.build:gradle:+'
}
}

apply plugin: 'android'

task('increaseVersionCode') << {
def manifestFile = file("AndroidManifest.xml")
def pattern = Pattern.compile("versionCode=\"(\\d+)\"")
def manifestText = manifestFile.getText()
def matcher = pattern.matcher(manifestText)
matcher.find()
def versionCode = Integer.parseInt(matcher.group(1))
def manifestContent = matcher.replaceAll("versionCode=\"" + ++versionCode + "\"")
manifestFile.write(manifestContent)
}

tasks.whenTaskAdded { task ->
if (task.name == 'generateReleaseBuildConfig') {
task.dependsOn 'increaseVersionCode'
}
}

dependencies {
compile 'com.android.support:support-v4:19.0.0'
compile files('libs/commons-io-2.4.jar',
'libs/google-play-services.jar',
'libs/gson-2.2.4.jar',
'libs/universal-image-loader-1.8.6.jar',
'libs/wakeful-1.0.1.jar')
compile project(':pulltorefresh_lib')
compile project(':edgeeffect_lib')
compile project(':viewpagerindicator_lib')
}

android {
buildToolsVersion "18.1.1"
compileSdkVersion "Google Inc.:Google APIs:18"

defaultConfig {
minSdkVersion 14
targetSdkVersion 18
}

buildTypes {
debug {
packageNameSuffix ".debug"
}
dev.initWith(buildTypes.debug)
dev {
buildConfigField "String", "URL_SEARCH", "\"https://dev-search.example.com\";"
buildConfigField "String", "URL_CONNECT", "\"https://dev-connect.example.com\";"
buildConfigField "String", "URL_SVC_NEWSLIST", "\"https://dev-mobilenews.example.com/newslist\";"
buildConfigField "String", "URL_SVC_NEWSDETAIL", "\"https://dev-mobilenews.example.com/newsdetail\";"
buildConfigField "String", "URL_SVC_REGISTERENDPOINTS", "\"https://dev-mobilenews.example.com/registerendpoints\";"
}
prod.initWith(buildTypes.release)
prod {
buildConfigField "String", "URL_SEARCH", "\"https://search.example.com\";"
buildConfigField "String", "URL_CONNECT", "\"https://connect.example.com\";"
buildConfigField "String", "URL_SVC_NEWSLIST", "\"https://mobilenews.example.com/newslist\";"
buildConfigField "String", "URL_SVC_NEWSDETAIL", "\"https://mobilenews.example.com/newsdetail\";"
buildConfigField "String", "URL_SVC_REGISTERENDPOINTS", "\"https://mobilenews.pdc-np-cf.lmig.com/registerendpoints\";"
}
}

sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
java.srcDirs = ['src']
resources.srcDirs = ['src']
res.srcDirs = ['res']
assets.srcDirs = ['assets']
}
}
}


The problem is that my BuildConfig.java doesn't seem to get the static variables injected, therefore I get errors similar to:

/Users/path/to/project/MainActivity.java:348: error: cannot find symbol
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(BuildConfig.URL_SEARCH)));
^
symbol: variable URL_SEARCH
location: class BuildConfig
/Users/path/to/project/MainActivity.java:359: error: cannot find symbol
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(BuildConfig.URL_CONNECT)));
^
symbol: variable URL_CONNECT
location: class BuildConfig
/Users/path/to/project/MainActivity.java:600: error: cannot find symbol
HttpPost httpPost = new HttpPost(BuildConfig.URL_SVC_REGISTERENDPOINTS);
^
symbol: variable URL_SVC_REGISTERENDPOINTS
location: class BuildConfig
/Users/path/to/project/service/AlarmNotificationService.java:145: error: cannot find symbol
String requestUrl = BuildConfig.URL_SVC_NEWSLIST + "?"
^
symbol: variable URL_SVC_NEWSLIST
location: class BuildConfig
/Users/path/to/project/service/NewsService.java:240: error: cannot find symbol
String requestUrl = BuildConfig.URL_SVC_NEWSLIST + "?"
^
symbol: variable URL_SVC_NEWSLIST
location: class BuildConfig
/Users/path/to/project/service/NewsService.java:530: error: cannot find symbol
HttpPost httpPost = new HttpPost(BuildConfig.URL_SVC_NEWSDETAIL);
^
symbol: variable URL_SVC_NEWSDETAIL
location: class BuildConfig
6 errors


My build/source/buildConfig/debug/com/.../BuildConfig.java file contains:

/**
* Automatically generated file. DO NOT MODIFY
*/
package com....;

public final class BuildConfig {
public static final boolean DEBUG = Boolean.parseBoolean("true");
public static final String PACKAGE_NAME = "com.....debug";
public static final String BUILD_TYPE = "debug";
public static final String FLAVOR = "";
public static final int VERSION_CODE = 5;
}


What am I doing wrong?

Answer

Please, be sure that you are building "dev" or "prod" variant. There is no BuildConfig definition in default "debug" and "release" variant. In Android Studio, you can select current variant in bottom left corner:

Build Variants

To simplify your build.gradle file, you can define:

buildTypes {
    debug {
        buildConfigField "String", "URL_SEARCH", "\"https://dev-search.example.com\""
        // etc.
    }
    release {
        buildConfigField "String", "URL_SEARCH", "\"https://search.example.com\""
        // etc.      
    }
}

and then just use default "debug" and "release" variants.

At last, delete semicolon (sign: ';') from the value of buildConfigField parameter.

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