add to travis

.travis.yml

+language: android
+jdk: oraclejdk8
+
+env:
+  global:
+    - ANDROID_API_LEVEL=25
+    - ANDROID_BUILD_TOOLS_VERSION=25.0.2
+
+android:
+  components:
+    # The BuildTools version used by your project
+    - tools
+    - platform-tools
+    - build-tools-$ANDROID_BUILD_TOOLS_VERSION
+    - extra-android-m2repository
+    - extra-google-android-support
+
+    # The SDK version used to compile your project
+    - android-$ANDROID_API_LEVEL
+  licenses:
+    - '.+'
+
+script: "./gradlew build"
\ No newline at end of file

MVPArms.md

 # MVPArms 
 [ ![Bintray](https://img.shields.io/badge/bintray-v1.2.4-brightgreen.svg) ](https://bintray.com/jessyancoding/maven/MVPArms/1.2.4/link)
+[ ![Build Status](https://travis-ci.org/JessYanCoding/MVPArms.svg?branch=master) ](https://travis-ci.org/JessYanCoding/MVPArms)
 [ ![API](https://img.shields.io/badge/API-15%2B-blue.svg?style=flat-square) ](https://developer.android.com/about/versions/android-4.0.3.html)
 [ ![License](http://img.shields.io/badge/License-Apache%202.0-blue.svg?style=flat-square) ](http://www.apache.org/licenses/LICENSE-2.0)
 

README.md

 # MVPArms 
 [ ![Bintray](https://img.shields.io/badge/bintray-v1.2.4-brightgreen.svg) ](https://bintray.com/jessyancoding/maven/MVPArms/1.2.4/link)
+[ ![Build Status](https://travis-ci.org/JessYanCoding/MVPArms.svg?branch=master) ](https://travis-ci.org/JessYanCoding/MVPArms)
 [ ![API](https://img.shields.io/badge/API-15%2B-blue.svg?style=flat-square) ](https://developer.android.com/about/versions/android-4.0.3.html)
 [ ![License](http://img.shields.io/badge/License-Apache%202.0-blue.svg?style=flat-square) ](http://www.apache.org/licenses/LICENSE-2.0)
 

arms/bintray.gradle

@@ -2,7 +2,11 @@ apply plugin: 'com.jfrog.bintray'
 apply plugin: 'com.github.dcendents.android-maven'
 
 Properties properties = new Properties()
-properties.load(project.rootProject.file('local.properties').newDataInputStream())
+boolean isHasFile = false
+if (project.rootProject.findProject('local.properties') != null){
+    isHasFile = true
+    properties.load(project.rootProject.file('local.properties').newDataInputStream())
+}
 
 def gitUrl = 'https://github.com/JessYanCoding/MVPArms.git'   // Git仓库的url
 def siteUrl = 'https://github.com/JessYanCoding/MVPArms'   // 项目的主页
@@ -12,8 +16,9 @@ group = "me.jessyan"
 
 
 bintray {
-    user = properties.getProperty("bintray.user")
-    key = properties.getProperty("bintray.apikey")
+    user = isHasFile ? properties.getProperty("bintray.user") : System.getenv("bintray.user")
+    key = isHasFile ? properties.getProperty("bintray.apikey") : System.getenv("bintray.apikey")
+
     pkg {
         repo = 'maven'
         name = 'MVPArms'