修改了gradle配置

GraffitiLib/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    buildToolsVersion "23.0.1"
 
     defaultConfig {
         minSdkVersion 9
@@ -10,16 +10,18 @@ android {
         versionCode 1
         versionName "1.0"
     }
+    /*
     buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    */
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile fileTree(include: ['*.jar'], dir: 'libs')
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.4.0'
+    compile 'com.android.support:support-v4:23.0.1'
 }

app/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    buildToolsVersion "23.0.1"
 
     defaultConfig {
         applicationId "cn.hzw.graffitidemo"
@@ -20,7 +20,6 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile fileTree(include: ['*.jar'], dir: 'libs')
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.4.0'
 }

app/src/main/AndroidManifest.xml

@@ -5,9 +5,7 @@
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
-        android:label="@string/app_name"
-        android:supportsRtl="true"
-        android:theme="@style/AppTheme">
+        android:label="@string/app_name">
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>

app/src/main/java/cn/hzw/graffitidemo/MainActivity.java

 package cn.hzw.graffitidemo;
 
-import android.support.v7.app.AppCompatActivity;
+import android.app.Activity;
 import android.os.Bundle;
 
-public class MainActivity extends AppCompatActivity {
+public class MainActivity extends Activity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {

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

-<resources>
-
-    <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
-        <!-- Customize your theme here. -->
-        <item name="colorPrimary">@color/colorPrimary</item>
-        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
-        <item name="colorAccent">@color/colorAccent</item>
-    </style>
-
-</resources>

local.properties

-## This file is automatically generated by Android Studio.
-# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
-#
-# This file should *NOT* be checked into Version Control Systems,
-# as it contains information specific to your local configuration.
-#
-# Location of the SDK. This is only used by Gradle.
-# For customization when using a Version Control System, please read the
-# header note.
-sdk.dir=/home/huangziwei/android-sdk-linux
\ No newline at end of file