Create android code signing guide

[DIMFLIX-OFFICIAL]

📋 Page(s) affected (or suggested, for new content)

https://beta.tauri.app/guides/build/

📋 Description or bullet point outline (if proposing new content)

The application is assembled. I am trying to install .apk on my phone, but this error occurs
pnpm Vanilla JavaScript

The APK failed to install. Error: INSTALL_PARSE_FAILED_NO_CERTIFICATES: Failed to collect certificates from /data/app/vdml780192954.tmp/base.apk: Attempt to get length of null array

[FabianLars]

You can only install signed apks. We don't have a guide for that yet but typically recommend flutter's guide since it's fairly close https://docs.flutter.dev/deployment/android#signing-the-app

[AdrianVispalia]

For people that have the same question, here is a link to the beta guide with the apk sign process:

https://next--tauri.netlify.app/next/guides/distribution/sign-android/

I tried it on my project and it worked. The flutter guide did give a similar outline, but given that flutter works with build.gradle and tauri works with build.gradle.kts, a code slightly different was required.

[cleveng]

For people that have the same question, here is a link to the beta guide with the apk sign process:

https://next--tauri.netlify.app/next/guides/distribution/sign-android/

I tried it on my project and it worked. The flutter guide did give a similar outline, but given that flutter works with build.gradle and tauri works with build.gradle.kts, a code slightly different was required.

Site Not Found

[AdrianVispalia]

For people that have the same question, here is a link to the beta guide with the apk sign process:
https://next--tauri.netlify.app/next/guides/distribution/sign-android/
I tried it on my project and it worked. The flutter guide did give a similar outline, but given that flutter works with build.gradle and tauri works with build.gradle.kts, a code slightly different was required.

Site Not Found

I do not remember everything that was mentioned on that website, but I followed some steps on a project and I have:

• created the file key.properties on /src-tauri/gen/android with the contents (change content):

storePassword=...
keyPassword=...
keyAlias=...
storeFile=storeFile.jks

• created the file storeFile.jks following Flutter's guide and put it on /src-tauri/gen/android/app :

keytool -genkey -v -keystore ~/storeFile.jks -keyalg RSA \
        -keysize 2048 -validity 10000 -alias upload

• modified the file build.gradle.kts on /src-tauri/gen/android/app to include the following:

val keyPropertiesFile = rootProject.file("key.properties")
val keyProperties = Properties()
keyProperties.load(FileInputStream(keyPropertiesFile))

android {
    compileSdk = 33
    namespace = "com.tauri.app"
    defaultConfig {
        manifestPlaceholders["usesCleartextTraffic"] = "false"
        applicationId = "com.tauri.app"
        minSdk = 24
        targetSdk = 33
        versionCode = 1
        versionName = "1.0"
    }
    signingConfigs {
        create("release") {
            keyAlias = keyProperties["keyAlias"] as String
            keyPassword = keyProperties["keyPassword"] as String
            storeFile = file(keyProperties["storeFile"] as String)
            storePassword = keyProperties["storePassword"] as String
        }
    }
    buildTypes {
        getByName("debug") {
            manifestPlaceholders["usesCleartextTraffic"] = "true"
            isDebuggable = true
            isJniDebuggable = true
            isMinifyEnabled = false
            packaging {                jniLibs.keepDebugSymbols.add("*/arm64-v8a/*.so")
                jniLibs.keepDebugSymbols.add("*/armeabi-v7a/*.so")
                jniLibs.keepDebugSymbols.add("*/x86/*.so")
                jniLibs.keepDebugSymbols.add("*/x86_64/*.so")
            }
        }
        getByName("release") {
            isMinifyEnabled = true
            // new
            //minifyEnabled = true
            //shrinkResources = true
            //proguardFiles(getDefaultProguardFile('proguard-android.txt'), "proguard-rules.pro")
            isShrinkResources = true

            proguardFiles(
                getDefaultProguardFile("proguard-android-optimize.txt"),
                "proguard-rules.pro"
            )

            // old
            signingConfig = signingConfigs.getByName("release")
            proguardFiles(
                *fileTree(".") { include("**/*.pro") }
                    .plus(getDefaultProguardFile("proguard-android-optimize.txt"))
                    .toList().toTypedArray()
            )
        }
    }
    kotlinOptions {
        jvmTarget = "1.8"
    }
}

I hope this helps! 👍