diff --git a/.idea/misc.xml b/.idea/misc.xml
index fbb68289..5d199810 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/Aria/build.gradle b/Aria/build.gradle
index b6e5869b..2aa5183d 100644
--- a/Aria/build.gradle
+++ b/Aria/build.gradle
@@ -2,7 +2,7 @@ apply plugin: 'com.android.library'
 
 android {
   compileSdkVersion 23
-  buildToolsVersion "23.0.2"
+  buildToolsVersion '25.0.2'
 
   defaultConfig {
     minSdkVersion 9
diff --git a/Aria/src/main/java/com/arialyy/aria/core/task/DownloadUtil.java b/Aria/src/main/java/com/arialyy/aria/core/task/DownloadUtil.java
index 6f14d883..95ff96a9 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/task/DownloadUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/task/DownloadUtil.java
@@ -244,7 +244,8 @@ public class DownloadUtil implements IDownloadUtil, Runnable {
     //不支持断点只能单线程下载
     if (!isSupportBreakpoint) {
       ConfigEntity entity = new ConfigEntity();
-      entity.FILE_SIZE = conn.getContentLength();
+      long len = conn.getContentLength();;
+      entity.FILE_SIZE = len;
       entity.DOWNLOAD_URL = mDownloadEntity.getDownloadUrl();
       entity.TEMP_FILE = mDownloadFile;
       entity.THREAD_ID = 0;
@@ -254,6 +255,7 @@ public class DownloadUtil implements IDownloadUtil, Runnable {
       entity.isSupportBreakpoint = isSupportBreakpoint;
       SingleThreadTask task = new SingleThreadTask(mConstance, mListener, entity);
       mFixedThreadPool.execute(task);
+      mListener.onPostPre(len);
       mListener.onStart(0);
       return;
     }
diff --git a/app/build.gradle b/app/build.gradle
index f8fe4165..b863586e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
   compileSdkVersion 23
-  buildToolsVersion "23.0.2"
+  buildToolsVersion '25.0.2'
 
   defaultConfig {
     applicationId "com.arialyy.simple"
diff --git a/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java b/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java
index 4d0bdff2..b888a99a 100644
--- a/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java
+++ b/app/src/main/java/com/arialyy/simple/single_task/SingleTaskActivity.java
@@ -55,7 +55,8 @@ public class SingleTaskActivity extends BaseActivity<ActivitySingleBinding> {
   private static final String DOWNLOAD_URL      =
       //"http://kotlinlang.org/docs/kotlin-docs.pdf";
       //"https://atom-installer.github.com/v1.13.0/AtomSetup.exe?s=1484074138&ext=.exe";
-      "http://static.gaoshouyou.com/d/21/e8/61218d78d0e8b79df68dbc18dd484c97.apk";
+      //"http://static.gaoshouyou.com/d/21/e8/61218d78d0e8b79df68dbc18dd484c97.apk";
+      "http://ox.konsung.net:5555/ksdc-web/download/downloadFile/?fileName=ksdc_1.0.2.apk&rRange=0-";
   @Bind(R.id.progressBar) HorizontalProgressBarWithNumber mPb;
   @Bind(R.id.start)       Button                          mStart;
   @Bind(R.id.stop)        Button                          mStop;
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ab4c9191..6a77bf60 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Mon Oct 24 17:59:34 CST 2016
+#Tue Mar 14 19:13:43 CST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip