diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 000000000..f4c7417f9
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,11 @@
+dist: bionic
+sudo: required
+matrix:
+  include:
+  - env: TARGET_OS=
+before_install:
+- "$TRAVIS_BUILD_DIR/travis/$TRAVIS_OS_NAME.$TARGET_OS.before_install"
+install:
+- "$TRAVIS_BUILD_DIR/travis/$TRAVIS_OS_NAME.$TARGET_OS.install"
+script:
+- "$TRAVIS_BUILD_DIR/travis/$TRAVIS_OS_NAME.$TARGET_OS.script"
diff --git a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/activity/MainActivity.java b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/activity/MainActivity.java
index eb55c9a9d..a8739f0b0 100644
--- a/AndorsTrail/src/com/gpl/rpg/AndorsTrail/activity/MainActivity.java
+++ b/AndorsTrail/src/com/gpl/rpg/AndorsTrail/activity/MainActivity.java
@@ -305,7 +305,8 @@ public final class MainActivity
 			t = Toast.makeText(this, msg, duration);
 			lastToast = new WeakReference<Toast>(t);
 		} else {
-			if (Build.VERSION.SDK_INT  >= Build.VERSION_CODES.P && t.getView().isShown()) {
+//			if (Build.VERSION.SDK_INT  >= Build.VERSION_CODES.P && t.getView().isShown()) {
+			if (Build.VERSION.SDK_INT  >= 28 && t.getView().isShown()) {
 				t.cancel();
 			}
 			t.setText(msg);
diff --git a/travis/linux..before_install b/travis/linux..before_install
new file mode 100755
index 000000000..89ee51523
--- /dev/null
+++ b/travis/linux..before_install
@@ -0,0 +1,2 @@
+#!/bin/sh
+sudo apt-get update -qq
diff --git a/travis/linux..install b/travis/linux..install
new file mode 100755
index 000000000..8ce7cdef9
--- /dev/null
+++ b/travis/linux..install
@@ -0,0 +1,9 @@
+#!/bin/sh
+sudo apt-get install -y \
+	android-sdk \
+	android-sdk-platform-23 \
+	apksigner \
+	default-jdk-headless \
+	gettext \
+	gradle \
+	libgradle-android-plugin-java
diff --git a/travis/linux..script b/travis/linux..script
new file mode 100755
index 000000000..9ace520a3
--- /dev/null
+++ b/travis/linux..script
@@ -0,0 +1,30 @@
+#!/bin/sh
+set -e
+
+cd AndorsTrail
+
+ln -s ../travis/support/build.gradle ../travis/support/gradle.properties \
+	../travis/support/local.properties .
+
+mkdir -p src/main/assets/translation src/main/java
+ln -s ../../AndroidManifest.xml ../../res src/main
+ln -s ../../com src/main/java
+
+for po in assets/translation/*.po
+do
+	msgfmt -o src/main/${po%.po}.mo $po
+done
+
+gradle assembleRelease
+
+keytool -genkeypair -v -keystore keystore.p12 -storepass changeit \
+	-keypass changeit -storetype pkcs12 -alias self -keyalg RSA \
+	-validity 10000 -dname \
+	"CN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown"
+
+VERSION=$(grep android:versionCode AndroidManifest.xml | cut -d \" -f 2)
+APK=com.gpl.rpg.AndorsTrail_$VERSION.apk
+
+apksigner sign --out $APK -v --ks keystore.p12 --ks-pass pass:changeit \
+	build/outputs/apk/AndorsTrail-release-unsigned.apk
+apksigner verify $APK
diff --git a/travis/support/build.gradle b/travis/support/build.gradle
new file mode 100644
index 000000000..3a2394f34
--- /dev/null
+++ b/travis/support/build.gradle
@@ -0,0 +1,20 @@
+buildscript {
+    repositories {
+        maven { url "file:///usr/share/maven-repo" }
+    }
+
+    dependencies {
+        classpath "com.android.tools.build:gradle:debian"
+    }
+}
+
+apply plugin: "com.android.application"
+
+android {
+    compileSdkVersion 23
+    buildToolsVersion "24.0.0"
+}
+
+dependencies {
+    compile files("libs/android-support-v4.jar")
+}
diff --git a/travis/support/gradle.properties b/travis/support/gradle.properties
new file mode 100644
index 000000000..96218a335
--- /dev/null
+++ b/travis/support/gradle.properties
@@ -0,0 +1 @@
+android.disableResourceValidation=true
diff --git a/travis/support/local.properties b/travis/support/local.properties
new file mode 100644
index 000000000..f54a1b042
--- /dev/null
+++ b/travis/support/local.properties
@@ -0,0 +1 @@
+sdk.dir=/usr/lib/android-sdk