add Google app invites

.gitignore

@@ -8,3 +8,4 @@
 /captures
 release.keystore
 signing.properties
+/app/google-services.json

app/build.gradle

@@ -36,6 +36,7 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.4.0'
     compile 'com.android.support:recyclerview-v7:23.4.0'
     compile 'com.android.support:design:23.4.0'
+    compile 'com.google.firebase:firebase-invites:9.4.0'
     compile 'com.bignerdranch.android:recyclerview-multiselect:0.2'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
 }

app/src/main/kotlin/com/simplemobiletools/applauncher/activities/AboutActivity.kt

@@ -6,6 +6,7 @@ import android.os.Bundle
 import android.text.Html
 import android.text.method.LinkMovementMethod
 import android.view.View
+import com.google.android.gms.appinvite.AppInviteInvitation
 import com.simplemobiletools.applauncher.BuildConfig
 import com.simplemobiletools.applauncher.R
 import com.simplemobiletools.applauncher.extensions.isFirstRun
@@ -21,6 +22,7 @@ class AboutActivity : SimpleActivity() {
         setContentView(R.layout.activity_about)
 
         setupEmail()
+        setupInvite()
         setupRateUs()
         setupLicense()
         setupSocial()
@@ -35,6 +37,17 @@ class AboutActivity : SimpleActivity() {
         about_email.movementMethod = LinkMovementMethod.getInstance()
     }
 
+
+    private fun setupInvite() {
+        val intent = AppInviteInvitation.IntentBuilder(getString(R.string.invite_friends))
+                .setMessage(String.format(getString(R.string.come_check_out), getString(R.string.app_name), 1))
+                .build()
+
+        about_invite.setOnClickListener {
+            startActivityForResult(intent, 1)
+        }
+    }
+
     private fun setupRateUs() {
         if (preferences.isFirstRun) {
             about_rate_us.visibility = View.GONE

app/src/main/res/layout/activity_about.xml

@@ -37,12 +37,22 @@
             android:text="@string/email"/>
 
         <TextView
-            android:id="@+id/about_rate_us"
+            android:id="@+id/about_invite"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_below="@+id/about_email"
             android:layout_marginTop="@dimen/activity_margin"
             android:paddingTop="@dimen/activity_margin"
+            android:text="@string/invite_friends_underlined"
+            android:textColor="@color/colorPrimary"/>
+
+        <TextView
+            android:id="@+id/about_rate_us"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/about_invite"
+            android:layout_marginTop="@dimen/activity_margin"
+            android:paddingTop="@dimen/activity_margin"
             android:text="@string/rate_us_underlined"
             android:textColor="@color/colorPrimary"/>
 

app/src/main/res/values/strings.xml

@@ -14,6 +14,9 @@
     <string name="email_label">Send your feedback or suggestions to:</string>
     <string name="email" translatable="false">hello@simplemobiletools.com</string>
     <string name="third_party_licences_underlined"><u>Third party licences</u></string>
+    <string name="invite_friends">Invite friends</string>
+    <string name="invite_friends_underlined"><u>Invite friends</u></string>
+    <string name="come_check_out">Come check out %s</string>
     <string name="rate_us_underlined"><u>Rate us in the Play Store</u></string>
     <string name="follow_us">Follow us:</string>
     <string name="copyright">v %1$s\nCopyright © Simple Mobile Tools %2$d</string>

build.gradle

@@ -6,7 +6,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.1.2'
-
+        classpath 'com.google.gms:google-services:3.0.0'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }