Add publish gradle task

api/build.gradle.kts

@@ -1,5 +1,7 @@
 plugins {
     id("com.android.library")
+    id("maven-publish")
+    id("signing")
 }
 
 android {
@@ -19,11 +21,70 @@ android {
     }
 
     compileOptions {
-        targetCompatibility = JavaVersion.VERSION_1_8
-        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_7
+        sourceCompatibility = JavaVersion.VERSION_1_7
     }
 }
 
+publishing {
+    publications {
+        fun MavenPublication.setup() {
+            group = "io.github.libxposed"
+            version = "100"
+            pom {
+                name.set("api")
+                description.set("Modern Xposed API")
+                url.set("https://github.com/libxposed/api")
+                licenses {
+                    license {
+                        name.set("Apache License 2.0")
+                        url.set("https://github.com/libxposed/api/blob/master/LICENSE")
+                    }
+                }
+                developers {
+                    developer {
+                        name.set("libxposed")
+                        url.set("https://libxposed.github.io")
+                    }
+                }
+                scm {
+                    connection.set("scm:git:https://github.com/libxposed/api.git")
+                    url.set("https://github.com/libxposed/api")
+                }
+            }
+        }
+        register<MavenPublication>("api") {
+            artifactId = "api"
+            setup()
+        }
+    }
+    repositories {
+        maven {
+            name = "ossrh"
+            url = uri("https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/")
+            credentials(PasswordCredentials::class)
+        }
+        maven {
+            name = "GitHubPackages"
+            url = uri("https://maven.pkg.github.com/LSPosed/LSPlant")
+            credentials {
+                username = System.getenv("GITHUB_ACTOR")
+                password = System.getenv("GITHUB_TOKEN")
+            }
+        }
+    }
+}
+
+signing {
+    val signingKey = findProperty("signingKey") as String?
+    val signingPassword = findProperty("signingPassword") as String?
+    if (signingKey != null && signingPassword != null) {
+        useInMemoryPgpKeys(signingKey, signingPassword)
+    }
+    sign(publishing.publications)
+}
+
+
 dependencies {
     compileOnly("androidx.annotation:annotation:1.5.0")
 }