[android] Add scheduled build script

platform/android/bitrise.yml

@@ -2,8 +2,9 @@
 format_version: 1.0.0
 default_step_lib_source: https://github.com/bitrise-io/bitrise-steplib.git
 trigger_map:
+- pattern: scheduled
+  workflow: scheduled
 - pattern: "*"
-  is_pull_request_allowed: true
   workflow: primary
 workflows:
   primary:
@@ -28,7 +29,7 @@ workflows:
         - content: |-
             #!/bin/bash
 
-            apt-get install pkg-config
+            apt-get install -y pkg-config
     - script:
         title: Build Android SDK For arm
         inputs:
@@ -61,5 +62,50 @@ workflows:
             failed'
         - icon_url: https://bitrise-public-content-production.s3.amazonaws.com/slack/bitrise-slack-icon-128.png
         - icon_url_on_error: https://bitrise-public-content-production.s3.amazonaws.com/slack/bitrise-slack-error-icon-128.png
-    before_run: 
-    after_run: 
+  scheduled:
+    steps:
+    - script:
+        title: Install Linux Dependencies
+        inputs:
+        - content: |-
+            #!/bin/bash
+
+            apt-get install -y pkg-config python-pip python-dev build-essential
+            pip install awscli
+    - script:
+        title: Fetch GPG Secring For SDK Signing
+        inputs:
+        - content: |-
+            #!/bin/bash
+
+            aws s3 cp s3://mapbox/android/signing-credentials/secring.gpg android/MapboxGLAndroidSDK/secring.gpg
+          opts:
+            is_expand: true
+    - script:
+        title: Inject Signing And Publishing Credentials
+        inputs:
+        - content: |-
+            #!/bin/bash
+
+            echo "NEXUS_USERNAME=$PUBLISH_NEXUS_USERNAME
+            NEXUS_PASSWORD=$PUBLISH_NEXUS_PASSWORD
+            signing.keyId=$SIGNING_KEYID
+            signing.password=$SIGNING_PASSWORD
+            signing.secretKeyRingFile=secring.gpg" >> android/MapboxGLAndroidSDK/gradle.properties
+          opts:
+            is_expand: true
+    - script:
+        title: Build Mapbox Android SDK For All ABI
+        inputs:
+        - content: |-
+            #!/bin/bash
+
+            make apackage -j4
+    - script:
+        title: Publish To Maven Central
+        inputs:
+        - content: |-
+            #!/bin/bash
+
+            cd android
+            ./gradlew uploadArchives