see 07/08 log

app/build.gradle

@@ -53,6 +53,7 @@ dependencies {
     def leakCanary = "com.squareup.leakcanary:leakcanary-android-no-op:$LEAKCANARY_VERSION"
 
     compile project(':utilcode')
+    compile project(':subutil')
     compile "com.android.support:appcompat-v7:$SUPPORT_VERSION"
     compile "com.android.support:support-v4:$SUPPORT_VERSION"
     compile "com.android.support:design:$SUPPORT_VERSION"

settings.gradle

-include ':app', ':utilcode'
+include ':app', ':utilcode', ':subutil'

subutil/.gitignore

+/build

subutil/build.gradle

+apply plugin: 'com.android.library'
+apply plugin: 'jacoco'
+
+task jacocoTestReport(type: JacocoReport, dependsOn: ['testDebugUnitTest', 'createDebugCoverageReport']) {
+
+    reports {
+        xml.enabled = true
+        html.enabled = true
+    }
+
+    def fileFilter = ['**/R.class', '**/R$*.class', '**/BuildConfig.*', '**/Manifest*.*', '**/*Test*.*', 'android/**/*.*']
+    def debugTree = fileTree(dir: "${buildDir}/intermediates/classes/debug", excludes: fileFilter)
+    def mainSrc = "${project.projectDir}/src/main/java"
+
+    sourceDirectories = files([mainSrc])
+    classDirectories = files([debugTree])
+    executionData = fileTree(dir: "$buildDir", includes: [
+            "jacoco/testDebugUnitTest.exec",
+            "outputs/code-coverage/connected/*coverage.ec"
+    ])
+}
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "25.0.3"
+
+    defaultConfig {
+        minSdkVersion 14
+        versionCode 41
+        versionName "1.7.1"
+    }
+
+    buildTypes {
+        debug {
+            testCoverageEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}
+
+tasks.matching { it instanceof Test }.all {
+    testLogging.events = ["failed", "passed", "skipped"]
+}
+
+dependencies {
+    final SUPPORT_VERSION = '25.3.1'
+    final JUNIT_VERSION = '4.12'
+    final TRUTH_VERSION = '0.31'
+    final ROBOLECTRIC_VERSION = '3.1.2'
+
+    provided "com.android.support:appcompat-v7:$SUPPORT_VERSION"
+    provided "com.android.support:support-v4:$SUPPORT_VERSION"
+    provided "com.android.support:design:$SUPPORT_VERSION"
+
+    testCompile "junit:junit:$JUNIT_VERSION"
+    testCompile "org.robolectric:robolectric:$ROBOLECTRIC_VERSION"
+}
+//apply from: "https://raw.githubusercontent.com/xiaopansky/android-library-publish-to-jcenter/master/bintrayUpload.gradle"
+//gradlew bintrayUpload

subutil/proguard-rules.pro

+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/Blankj/Library/Android/android_sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

subutil/src/main/AndroidManifest.xml

+<manifest package="com.blankj.subutil"/>

utilcode/src/main/java/com/blankj/utilcode/util/LunarUtils.java → subutil/src/main/java/com/blankj/subutil/util/LunarUtils.java

-package com.blankj.utilcode.util;
+package com.blankj.subutil.util;
 
 /**
  * <pre>

utilcode/src/main/java/com/blankj/utilcode/util/PinyinUtils.java → subutil/src/main/java/com/blankj/subutil/util/PinyinUtils.java

-package com.blankj.utilcode.util;
+package com.blankj.subutil.util;
 
 import android.support.v4.util.SimpleArrayMap;
 

utilcode/src/main/java/com/blankj/utilcode/util/ThreadPoolUtils.java → subutil/src/main/java/com/blankj/subutil/util/ThreadPoolUtils.java

-package com.blankj.utilcode.util;
+package com.blankj.subutil.util;
 
 import android.support.annotation.IntDef;
 

subutil/src/main/java/com/blankj/subutil/util/Utils.java

+package com.blankj.subutil.util;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.support.annotation.NonNull;
+
+/**
+ * <pre>
+ *     author: Blankj
+ *     blog  : http://blankj.com
+ *     time  : 16/12/08
+ *     desc  : Utils初始化相关
+ * </pre>
+ */
+public final class Utils {
+
+    @SuppressLint("StaticFieldLeak")
+    private static Context context;
+
+    private Utils() {
+        throw new UnsupportedOperationException("u can't instantiate me...");
+    }
+
+    /**
+     * 初始化工具类
+     *
+     * @param context 上下文
+     */
+    public static void init(@NonNull final Context context) {
+        Utils.context = context.getApplicationContext();
+    }
+
+    /**
+     * 获取ApplicationContext
+     *
+     * @return ApplicationContext
+     */
+    public static Context getContext() {
+        if (context != null) return context;
+        throw new NullPointerException("u should init first");
+    }
+}

utilcode/src/main/java/com/blankj/utilcode/util/VibrationUtils.java → subutil/src/main/java/com/blankj/subutil/util/VibrationUtils.java

-package com.blankj.utilcode.util;
+package com.blankj.subutil.util;
 
 /**
  * <pre>

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

+<resources>
+    <string name="app_name">subutil</string>
+</resources>

subutil/src/test/java/com/blankj/subutil/ExampleUnitTest.java

+package com.blankj.subutil;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}
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