diff --git a/Aria/src/main/java/com/arialyy/aria/core/AMReceiver.java b/Aria/src/main/java/com/arialyy/aria/core/AMReceiver.java
index f73d3b42..c08ff3eb 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/AMReceiver.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/AMReceiver.java
@@ -15,6 +15,9 @@
  */
 package com.arialyy.aria.core;
 
+import android.os.Build;
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
 import com.arialyy.aria.core.scheduler.DownloadSchedulers;
 import com.arialyy.aria.core.scheduler.OnSchedulerListener;
 
@@ -27,11 +30,23 @@ public class AMReceiver {
   OnSchedulerListener listener;
   DownloadEntity      entity;
 
-  public AMTarget load(DownloadEntity entity) {
+  @Deprecated public AMTarget load(DownloadEntity entity) {
     this.entity = entity;
     return new AMTarget(this);
   }
 
+  /**
+   * 读取下载链接
+   */
+  public AMTarget load(@NonNull String downloadUrl) {
+    if (TextUtils.isEmpty(downloadUrl)) {
+      throw new IllegalArgumentException("下载链接不能为null");
+    }
+    entity = new DownloadEntity();
+    entity.setDownloadUrl(downloadUrl);
+    return new AMTarget(this);
+  }
+
   /**
    * 添加调度器回调
    */
diff --git a/Aria/src/main/java/com/arialyy/aria/core/AMTarget.java b/Aria/src/main/java/com/arialyy/aria/core/AMTarget.java
index 6c9b23a4..54f18861 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/AMTarget.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/AMTarget.java
@@ -15,10 +15,10 @@
  */
 package com.arialyy.aria.core;
 
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
 import com.arialyy.aria.core.command.CmdFactory;
-import com.arialyy.aria.core.scheduler.OnSchedulerListener;
 import com.arialyy.aria.core.command.IDownloadCmd;
-import com.arialyy.aria.core.task.Task;
 import com.arialyy.aria.util.CommonUtil;
 import java.util.ArrayList;
 import java.util.List;
@@ -28,10 +28,32 @@ import java.util.List;
  * https://github.com/AriaLyy/Aria
  */
 public class AMTarget {
-  private AMReceiver receiver;
+  private AMReceiver mReceiver;
 
   AMTarget(AMReceiver receiver) {
-    this.receiver = receiver;
+    this.mReceiver = receiver;
+  }
+
+  /**
+   * 设置文件存储路径
+   */
+  public AMTarget setDownloadPath(@NonNull String downloadPath) {
+    if (TextUtils.isEmpty(downloadPath)) {
+      throw new IllegalArgumentException("文件保持路径不能为null");
+    }
+    mReceiver.entity.setDownloadPath(downloadPath);
+    return this;
+  }
+
+  /**
+   * 设置文件名
+   */
+  public AMTarget setDownloadName(@NonNull String downloadName) {
+    if (TextUtils.isEmpty(downloadName)) {
+      throw new IllegalArgumentException("文件名不能为null");
+    }
+    mReceiver.entity.setFileName(downloadName);
+    return this;
   }
 
   /**
@@ -39,7 +61,7 @@ public class AMTarget {
    */
   public void add() {
     DownloadManager.getInstance()
-        .setCmd(CommonUtil.createCmd(receiver.obj, receiver.entity, CmdFactory.TASK_CREATE))
+        .setCmd(CommonUtil.createCmd(mReceiver.obj, mReceiver.entity, CmdFactory.TASK_CREATE))
         .exe();
   }
 
@@ -48,8 +70,8 @@ public class AMTarget {
    */
   public void start() {
     List<IDownloadCmd> cmds = new ArrayList<>();
-    cmds.add(CommonUtil.createCmd(receiver.obj, receiver.entity, CmdFactory.TASK_CREATE));
-    cmds.add(CommonUtil.createCmd(receiver.obj, receiver.entity, CmdFactory.TASK_START));
+    cmds.add(CommonUtil.createCmd(mReceiver.obj, mReceiver.entity, CmdFactory.TASK_CREATE));
+    cmds.add(CommonUtil.createCmd(mReceiver.obj, mReceiver.entity, CmdFactory.TASK_START));
     DownloadManager.getInstance().setCmds(cmds).exe();
     cmds.clear();
   }
@@ -59,7 +81,7 @@ public class AMTarget {
    */
   public void stop() {
     DownloadManager.getInstance()
-        .setCmd(CommonUtil.createCmd(receiver.obj, receiver.entity, CmdFactory.TASK_STOP))
+        .setCmd(CommonUtil.createCmd(mReceiver.obj, mReceiver.entity, CmdFactory.TASK_STOP))
         .exe();
   }
 
@@ -68,7 +90,7 @@ public class AMTarget {
    */
   public void resume() {
     DownloadManager.getInstance()
-        .setCmd(CommonUtil.createCmd(receiver.obj, receiver.entity, CmdFactory.TASK_START))
+        .setCmd(CommonUtil.createCmd(mReceiver.obj, mReceiver.entity, CmdFactory.TASK_START))
         .exe();
   }
 
@@ -77,7 +99,7 @@ public class AMTarget {
    */
   public void cancel() {
     DownloadManager.getInstance()
-        .setCmd(CommonUtil.createCmd(receiver.obj, receiver.entity, CmdFactory.TASK_CANCEL))
+        .setCmd(CommonUtil.createCmd(mReceiver.obj, mReceiver.entity, CmdFactory.TASK_CANCEL))
         .exe();
   }
 
@@ -85,7 +107,7 @@ public class AMTarget {
    * 是否在下载
    */
   public boolean isDownloading() {
-    return DownloadManager.getInstance().getTaskQueue().getTask(receiver.entity).isDownloading();
+    return DownloadManager.getInstance().getTaskQueue().getTask(mReceiver.entity).isDownloading();
   }
 
   /**
@@ -96,38 +118,13 @@ public class AMTarget {
     start();
   }
 
-  public static class SimpleSchedulerListener implements OnSchedulerListener {
-
-    @Override public void onTaskPre(Task task) {
-
-    }
-
-    @Override public void onTaskResume(Task task) {
-
-    }
-
-    @Override public void onTaskStart(Task task) {
-
-    }
-
-    @Override public void onTaskStop(Task task) {
-
-    }
-
-    @Override public void onTaskCancel(Task task) {
-
-    }
-
-    @Override public void onTaskFail(Task task) {
-
-    }
-
-    @Override public void onTaskComplete(Task task) {
-
-    }
-
-    @Override public void onTaskRunning(Task task) {
-
-    }
-  }
+  //static class Build {
+  //  DownloadEntity entity;
+  //
+  //  Build(DownloadEntity entity) {
+  //    this.entity = entity;
+  //  }
+  //
+  //
+  //}
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/Aria.java b/Aria/src/main/java/com/arialyy/aria/core/Aria.java
index 3fce3d74..705352d3 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/Aria.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/Aria.java
@@ -25,6 +25,8 @@ import android.app.Fragment;
 import android.app.Service;
 import android.content.Context;
 import android.os.Build;
+import com.arialyy.aria.core.scheduler.OnSchedulerListener;
+import com.arialyy.aria.core.task.Task;
 
 /**
  * Created by lyy on 2016/12/1.
@@ -46,51 +48,51 @@ import android.os.Build;
   /**
    * 预处理完成
    */
-  public static final     String             ACTION_PRE       = "ACTION_PRE";
+  public static final String ACTION_PRE       = "ACTION_PRE";
   /**
    * 下载开始前事件
    */
-  public static final     String             ACTION_POST_PRE  = "ACTION_POST_PRE";
+  public static final String ACTION_POST_PRE  = "ACTION_POST_PRE";
   /**
    * 开始下载事件
    */
-  public static final     String             ACTION_START     = "ACTION_START";
+  public static final String ACTION_START     = "ACTION_START";
   /**
    * 恢复下载事件
    */
-  public static final     String             ACTION_RESUME    = "ACTION_RESUME";
+  public static final String ACTION_RESUME    = "ACTION_RESUME";
   /**
    * 正在下载事件
    */
-  public static final     String             ACTION_RUNNING   = "ACTION_RUNNING";
+  public static final String ACTION_RUNNING   = "ACTION_RUNNING";
   /**
    * 停止下载事件
    */
-  public static final     String             ACTION_STOP      = "ACTION_STOP";
+  public static final String ACTION_STOP      = "ACTION_STOP";
   /**
    * 取消下载事件
    */
-  public static final     String             ACTION_CANCEL    = "ACTION_CANCEL";
+  public static final String ACTION_CANCEL    = "ACTION_CANCEL";
   /**
    * 下载完成事件
    */
-  public static final     String             ACTION_COMPLETE  = "ACTION_COMPLETE";
+  public static final String ACTION_COMPLETE  = "ACTION_COMPLETE";
   /**
    * 下载失败事件
    */
-  public static final     String             ACTION_FAIL      = "ACTION_FAIL";
+  public static final String ACTION_FAIL      = "ACTION_FAIL";
   /**
    * 下载实体
    */
-  public static final     String             ENTITY           = "DOWNLOAD_ENTITY";
+  public static final String ENTITY           = "DOWNLOAD_ENTITY";
   /**
    * 位置
    */
-  public static final     String             CURRENT_LOCATION = "CURRENT_LOCATION";
+  public static final String CURRENT_LOCATION = "CURRENT_LOCATION";
   /**
    * 速度
    */
-  public static final     String             CURRENT_SPEED    = "CURRENT_SPEED";
+  public static final String CURRENT_SPEED    = "CURRENT_SPEED";
 
   private Aria() {
   }
@@ -145,4 +147,39 @@ import android.os.Build;
       throw new IllegalArgumentException("这是不支持的context");
     }
   }
+
+  public static class SimpleSchedulerListener implements OnSchedulerListener {
+
+    @Override public void onTaskPre(Task task) {
+
+    }
+
+    @Override public void onTaskResume(Task task) {
+
+    }
+
+    @Override public void onTaskStart(Task task) {
+
+    }
+
+    @Override public void onTaskStop(Task task) {
+
+    }
+
+    @Override public void onTaskCancel(Task task) {
+
+    }
+
+    @Override public void onTaskFail(Task task) {
+
+    }
+
+    @Override public void onTaskComplete(Task task) {
+
+    }
+
+    @Override public void onTaskRunning(Task task) {
+
+    }
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/task/Task.java b/Aria/src/main/java/com/arialyy/aria/core/task/Task.java
index 141fd8d0..5420362b 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/task/Task.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/task/Task.java
@@ -44,6 +44,7 @@ public class Task {
   private Handler           mOutHandler;
   private Context           mContext;
   private IDownloadUtil     mUtil;
+  private long              mSpeed;
 
   private Task(Context context, DownloadEntity entity, Handler outHandler) {
     mContext = context.getApplicationContext();
@@ -57,6 +58,13 @@ public class Task {
     mUtil = new DownloadUtil(mContext, mEntity, mListener);
   }
 
+  /**
+   * 获取下载速度
+   */
+  public long getSpeed() {
+    return mSpeed;
+  }
+
   /**
    * 开始下载
    */
@@ -151,7 +159,7 @@ public class Task {
       this("", context, downloadEntity);
     }
 
-    public Builder(String targetName, Context context, DownloadEntity downloadEntity) {
+    Builder(String targetName, Context context, DownloadEntity downloadEntity) {
       this.targetName = targetName;
       this.context = context;
       this.downloadEntity = downloadEntity;
@@ -162,7 +170,7 @@ public class Task {
      *
      * @param schedulers {@link IDownloadSchedulers}
      */
-    public Builder setOutHandler(IDownloadSchedulers schedulers) {
+    Builder setOutHandler(IDownloadSchedulers schedulers) {
       this.outHandler = new Handler(schedulers);
       return this;
     }
@@ -198,7 +206,7 @@ public class Task {
    */
   private static class DListener extends DownloadListener {
     WeakReference<Handler> outHandler;
-    WeakReference<Task>    task;
+    WeakReference<Task>    wTask;
     Context                context;
     Intent                 sendIntent;
     long    INTERVAL      = 1024 * 10;   //10k大小的间隔
@@ -207,12 +215,14 @@ public class Task {
     long    INTERVAL_TIME = 1000;   //1m更新周期
     boolean isFirst       = true;
     DownloadEntity downloadEntity;
+    Task           task;
 
     DListener(Context context, Task task, Handler outHandler) {
       this.context = context;
       this.outHandler = new WeakReference<>(outHandler);
-      this.task = new WeakReference<>(task);
-      this.downloadEntity = this.task.get().getDownloadEntity();
+      this.wTask = new WeakReference<>(task);
+      task = wTask.get();
+      this.downloadEntity = this.task.getDownloadEntity();
       sendIntent = CommonUtil.createIntent(context.getPackageName(), Aria.ACTION_RUNNING);
       sendIntent.putExtra(Aria.ENTITY, downloadEntity);
     }
@@ -307,7 +317,7 @@ public class Task {
      */
     private void sendInState2Target(int state) {
       if (outHandler.get() != null) {
-        outHandler.get().obtainMessage(state, task.get()).sendToTarget();
+        outHandler.get().obtainMessage(state, task).sendToTarget();
       }
     }
 
diff --git a/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java b/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java
index ba70cda1..26ad8fe3 100644
--- a/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java
+++ b/Aria/src/main/java/com/arialyy/aria/util/CheckUtil.java
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-
 package com.arialyy.aria.util;
 
 import android.text.TextUtils;
@@ -43,11 +42,10 @@ public class CheckUtil {
       Log.w(TAG, "下载链接不能为空");
       return false;
     } else if (TextUtils.isEmpty(entity.getFileName())) {
-      Log.w(TAG, "文件名不能为空");
-      return false;
+      //Log.w(TAG, "文件名不能为空");
+      throw new IllegalArgumentException("文件名不能为null");
     } else if (TextUtils.isEmpty(entity.getDownloadPath())) {
-      Log.w(TAG, "存储地址不能为空");
-      return false;
+      throw new IllegalArgumentException("文件保存路径不能为null");
     }
     String fileName = entity.getFileName();
     if (fileName.contains(" ")) {