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copied!<p>The best way is to use "Android Studio" -> gradle.build -> [productFlavors + generate manifest file from template]. This combination allows to build free/paid versions and bunch of editions for different app markets from one source.</p> <hr> <p>This is a part of templated manifest file:</p> <hr> <pre><code><manifest android:versionCode="1" android:versionName="1" package="com.example.product" xmlns:android="http://schemas.android.com/apk/res/android"> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/{f:FREE}app_name_free{/f}{f:PAID}app_name_paid{/f}" android:name=".ApplicationMain" android:theme="@style/AppTheme"> <activity android:label="@string/{f:FREE}app_name_free{/f}{f:PAID}app_name_paid{/f}" android:name=".ActivityMain"> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> </application> </code></pre> <hr> <p>This is template "ProductInfo.template" for java file: ProductInfo.java</p> <hr> <pre><code> package com.packagename.generated; import com.packagename.R; public class ProductInfo { public static final boolean mIsPaidVersion = {f:PAID}true{/f}{f:FREE}false{/f}; public static final int mAppNameId = R.string.app_name_{f:PAID}paid{/f}{f:FREE}free{/f}; public static final boolean mIsDebug = {$DEBUG}; } </code></pre> <hr> <p>This manifest is processed by gradle.build script with <strong>productFlavors</strong> and <strong>processManifest</strong> task hook:</p> <hr> <pre><code>import java.util.regex.Matcher; import java.util.regex.Pattern; import org.gradle.api.DefaultTask import org.gradle.api.tasks.TaskAction ... android { ... productFlavors { free { packageName 'com.example.product.free' } paid { packageName 'com.example.product.paid' } } ... } afterEvaluate { project -> android.applicationVariants.each { variant -> def flavor = variant.productFlavors[0].name tasks['prepare' + variant.name + 'Dependencies'].doLast { println "Generate java files..." //Copy templated and processed by build system manifest file to filtered_manifests forder def productInfoPath = "${projectDir}/some_sourcs_path/generated/" copy { from(productInfoPath) into(productInfoPath) include('ProductInfo.template') rename('ProductInfo.template', 'ProductInfo.java') } tasks.create(name: variant.name + 'ProcessProductInfoJavaFile', type: processTemplateFile) { templateFilePath = productInfoPath + "ProductInfo.java" flavorName = flavor buildTypeName = variant.buildType.name } tasks[variant.name + 'ProcessProductInfoJavaFile'].execute() } variant.processManifest.doLast { println "Customization manifest file..." // Copy templated and processed by build system manifest file to filtered_manifests forder copy { from("${buildDir}/manifests") { include "${variant.dirName}/AndroidManifest.xml" } into("${buildDir}/filtered_manifests") } tasks.create(name: variant.name + 'ProcessManifestFile', type: processTemplateFile) { templateFilePath = "${buildDir}/filtered_manifests/${variant.dirName}/AndroidManifest.xml" flavorName = flavor buildTypeName = variant.buildType.name } tasks[variant.name + 'ProcessManifestFile'].execute() } variant.processResources.manifestFile = file("${buildDir}/filtered_manifests/${variant.dirName}/AndroidManifest.xml") } } </code></pre> <hr> <p>This is separated task to process file</p> <hr> <pre><code>class processTemplateFile extends DefaultTask { def String templateFilePath = "" def String flavorName = "" def String buildTypeName = "" @TaskAction void run() { println templateFilePath // Load file to memory def fileObj = project.file(templateFilePath) def content = fileObj.getText() // Flavor. Find "{f:<flavor_name>}...{/f}" pattern and leave only "<flavor_name>==flavor" def patternAttribute = Pattern.compile("\\{f:((?!${flavorName.toUpperCase()})).*?\\{/f\\}",Pattern.DOTALL); content = patternAttribute.matcher(content).replaceAll(""); def pattern = Pattern.compile("\\{f:.*?\\}"); content = pattern.matcher(content).replaceAll(""); pattern = Pattern.compile("\\{/f\\}"); content = pattern.matcher(content).replaceAll(""); // Build. Find "{$DEBUG}" pattern and replace with "true"/"false" pattern = Pattern.compile("\\{\\\$DEBUG\\}", Pattern.DOTALL); if (buildTypeName == "debug"){ content = pattern.matcher(content).replaceAll("true"); } else{ content = pattern.matcher(content).replaceAll("false"); } // Save processed manifest file fileObj.write(content) } } </code></pre> <p><strong>Updated:</strong> processTemplateFile created for code reusing purposes. </p>

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