diff --git a/Aria/src/main/java/com/arialyy/aria/core/WidgetLiftManager.java b/Aria/src/main/java/com/arialyy/aria/core/WidgetLiftManager.java
index f19b5ab6..1ab43e76 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/WidgetLiftManager.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/WidgetLiftManager.java
@@ -73,8 +73,16 @@ final class WidgetLiftManager {
 
   /**
    * 处理对话框取消或dismiss
+   *
+   * @return true 设置了dialog的销毁事件。false 没有设置dialog的销毁事件
    */
   boolean handleDialogLift(Dialog dialog) {
+    if (dialog == null) {
+      ALog.w(TAG,
+          "dialog 为空，没有设置自动销毁事件，为了防止内存泄露，请在dismiss方法中调用Aria.download(this).unRegister();来注销事件\n"
+              + "如果你使用的是DialogFragment，那么你需要在onDestroy()中进行销毁Aria事件操作");
+      return false;
+    }
     try {
       Field dismissField = CommonUtil.getField(dialog.getClass(), "mDismissMessage");
       Message dismissMsg = (Message) dismissField.get(dialog);
diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/ProxyHelper.java b/Aria/src/main/java/com/arialyy/aria/core/common/ProxyHelper.java
index 780f262b..ff9c0ea8 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/ProxyHelper.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/ProxyHelper.java
@@ -75,50 +75,23 @@ public class ProxyHelper {
       return result;
     }
     result = new HashSet<>();
-    try {
-      if (getClass().getClassLoader()
-          .loadClass(className.concat(TaskEnum.DOWNLOAD_GROUP.proxySuffix))
-          != null) {
-        result.add(PROXY_TYPE_DOWNLOAD_GROUP);
-      }
-    } catch (ClassNotFoundException e) {
-      //e.printStackTrace();
+    if (checkProxyExist(className, TaskEnum.DOWNLOAD_GROUP.proxySuffix)) {
+      result.add(PROXY_TYPE_DOWNLOAD_GROUP);
     }
-    try {
-      if (getClass().getClassLoader().loadClass(className.concat(TaskEnum.DOWNLOAD.proxySuffix))
-          != null) {
-        result.add(PROXY_TYPE_DOWNLOAD);
-      }
-    } catch (ClassNotFoundException e) {
-      //e.printStackTrace();
+    if (checkProxyExist(className, TaskEnum.DOWNLOAD.proxySuffix)) {
+      result.add(PROXY_TYPE_DOWNLOAD);
     }
 
-    try {
-      if (getClass().getClassLoader().loadClass(className.concat(TaskEnum.UPLOAD.proxySuffix))
-          != null) {
-        result.add(PROXY_TYPE_UPLOAD);
-      }
-    } catch (ClassNotFoundException e) {
-      //e.printStackTrace();
+    if (checkProxyExist(className, TaskEnum.UPLOAD.proxySuffix)) {
+      result.add(PROXY_TYPE_UPLOAD);
     }
 
-    try {
-      if (getClass().getClassLoader().loadClass(className.concat(TaskEnum.M3U8_PEER.proxySuffix))
-          != null) {
-        result.add(PROXY_TYPE_M3U8_PEER);
-      }
-    } catch (ClassNotFoundException e) {
-      //e.printStackTrace();
+    if (checkProxyExist(className, TaskEnum.M3U8_PEER.proxySuffix)) {
+      result.add(PROXY_TYPE_M3U8_PEER);
     }
 
-    try {
-      if (getClass().getClassLoader()
-          .loadClass(className.concat(TaskEnum.DOWNLOAD_GROUP_SUB.proxySuffix))
-          != null) {
-        result.add(PROXY_TYPE_DOWNLOAD_GROUP_SUB);
-      }
-    } catch (ClassNotFoundException e) {
-      //e.printStackTrace();
+    if (checkProxyExist(className, TaskEnum.DOWNLOAD_GROUP_SUB.proxySuffix)) {
+      result.add(PROXY_TYPE_DOWNLOAD_GROUP_SUB);
     }
 
     if (!result.isEmpty()) {
@@ -126,4 +99,20 @@ public class ProxyHelper {
     }
     return result;
   }
+
+  private boolean checkProxyExist(String className, String proxySuffix) {
+    String clsName = className.concat(proxySuffix);
+
+    try {
+      if (getClass().getClassLoader().loadClass(clsName) != null) {
+        return true;
+      }
+      if (Class.forName(clsName) != null) {
+        return true;
+      }
+    } catch (ClassNotFoundException e) {
+      //e.printStackTrace();
+    }
+    return false;
+  }
 }
diff --git a/Aria/src/main/java/com/arialyy/aria/core/download/m3u8/M3U8Option.java b/Aria/src/main/java/com/arialyy/aria/core/download/m3u8/M3U8Option.java
index eb921c8a..77e329a5 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/download/m3u8/M3U8Option.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/download/m3u8/M3U8Option.java
@@ -33,12 +33,21 @@ public class M3U8Option<OP extends M3U8Option> extends BaseOption {
   private ITsMergeHandler mergeHandler;
   private IBandWidthUrlConverter bandWidthUrlConverter;
   private IKeyUrlConverter keyUrlConverter;
+  private boolean ignoreFailureTs = false;
 
   M3U8Option() {
     super();
     ComponentUtil.getInstance().checkComponentExist(ComponentUtil.COMPONENT_TYPE_M3U8);
   }
 
+  /**
+   * 忽略下载失败的ts切片，即使有失败的切片，下载完成后也要合并所有切片，并进入complete回调
+   */
+  public OP ignoreFailureTs() {
+    this.ignoreFailureTs = true;
+    return (OP) this;
+  }
+
   /**
    * 生成m3u8索引文件
    * 注意：创建索引文件，{@link #merge(boolean)}方法设置与否都不再合并文件
diff --git a/DEV_LOG.md b/DEV_LOG.md
index fb81df0b..7b92d358 100644
--- a/DEV_LOG.md
+++ b/DEV_LOG.md
@@ -2,6 +2,9 @@
   + v_3.8
     - 移除androidx和support的依赖，现在无论是哪个版本的appcompat包都可以使用本框架
     - 修复一个在xml中使用fragment导致的内存泄漏问题
+    - m3u8协议的key信息增加了`keyFormat`，`keyFormatVersion`字段
+    - m3u8增加了`ignoreFailureTs`方法，忽略虾类失败的ts切片
+    - 修复在dialogFragment的`onCreateDialog()`注册导致的注解不生效问题
   + v_3.7.10 (2019/12/3)
     - fix bug https://github.com/AriaLyy/Aria/issues/543#issuecomment-559733124
     - fix bug https://github.com/AriaLyy/Aria/issues/542
diff --git a/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8InfoThread.java b/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8InfoThread.java
index 4c92af17..7d3ef2d4 100644
--- a/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8InfoThread.java
+++ b/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8InfoThread.java
@@ -255,6 +255,10 @@ final public class M3U8InfoThread implements Runnable {
                 m3U8Entity.keyUrl) + ".key";
       } else if (param.startsWith("IV")) {
         m3U8Entity.iv = param.split("=")[1];
+      }else if (param.startsWith("KEYFORMAT")){
+        m3U8Entity.keyFormat = param.split("=")[1];
+      }else if (param.startsWith("KEYFORMATVERSIONS")){
+        m3U8Entity.keyFormatVersion = param.split("=")[1];
       }
     }
     downloadKey(m3U8Entity);
diff --git a/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8TaskOption.java b/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8TaskOption.java
index 5e9df9fe..b6c35052 100644
--- a/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8TaskOption.java
+++ b/M3U8Component/src/main/java/com/arialyy/aria/m3u8/M3U8TaskOption.java
@@ -109,6 +109,20 @@ public class M3U8TaskOption implements ITaskOption {
    */
   private SoftReference<IKeyUrlConverter> keyUrlConverter;
 
+  /**
+   * 忽略下载失败的ts切片。
+   * true：即使有失败的切片，下载完成后也要合并所有切片，并进入complete回调
+   */
+  private boolean ignoreFailureTs = false;
+
+  public boolean isIgnoreFailureTs() {
+    return ignoreFailureTs;
+  }
+
+  public void setIgnoreFailureTs(boolean ignoreFailureTs) {
+    this.ignoreFailureTs = ignoreFailureTs;
+  }
+
   public IKeyUrlConverter getKeyUrlConverter() {
     return keyUrlConverter == null ? null : keyUrlConverter.get();
   }
diff --git a/M3U8Component/src/main/java/com/arialyy/aria/m3u8/vod/M3U8VodLoader.java b/M3U8Component/src/main/java/com/arialyy/aria/m3u8/vod/M3U8VodLoader.java
index 86a2ceb5..49024b45 100644
--- a/M3U8Component/src/main/java/com/arialyy/aria/m3u8/vod/M3U8VodLoader.java
+++ b/M3U8Component/src/main/java/com/arialyy/aria/m3u8/vod/M3U8VodLoader.java
@@ -221,9 +221,9 @@ public class M3U8VodLoader extends BaseM3U8Loader {
       }
     }
     mManager.updateStateCount();
-    if (mCompleteNum <= 0){
+    if (mCompleteNum <= 0) {
       mListener.onStart(0);
-    }else {
+    } else {
       int percent = mCompleteNum * 100 / mRecord.threadRecords.size();
       mListener.onResume(percent);
     }
@@ -570,9 +570,9 @@ public class M3U8VodLoader extends BaseM3U8Loader {
             ALog.d(TAG, String.format("vod任务【%s】完成", mTempFile.getName()));
 
             if (mM3U8Option.isGenerateIndexFile()) {
-              if (generateIndexFile(false)){
+              if (generateIndexFile(false)) {
                 listener.onComplete();
-              }else {
+              } else {
                 listener.onFail(false, new TaskException(TAG, "创建索引文件失败"));
               }
             } else if (mM3U8Option.isMergeFile()) {
@@ -621,7 +621,11 @@ public class M3U8VodLoader extends BaseM3U8Loader {
     }
 
     @Override public boolean isComplete() {
-      return mCompleteNum == taskRecord.threadRecords.size() && !isJump;
+      if (mM3U8Option.isIgnoreFailureTs()) {
+        return mCompleteNum + failNum >= taskRecord.threadRecords.size() && !isJump;
+      } else {
+        return mCompleteNum == taskRecord.threadRecords.size() && !isJump;
+      }
     }
 
     @Override public long getCurrentProgress() {
diff --git a/PublicComponent/src/main/java/com/arialyy/aria/core/download/M3U8Entity.java b/PublicComponent/src/main/java/com/arialyy/aria/core/download/M3U8Entity.java
index 2a04816f..d024cb43 100644
--- a/PublicComponent/src/main/java/com/arialyy/aria/core/download/M3U8Entity.java
+++ b/PublicComponent/src/main/java/com/arialyy/aria/core/download/M3U8Entity.java
@@ -21,6 +21,7 @@ import android.text.TextUtils;
 import com.arialyy.aria.core.TaskRecord;
 import com.arialyy.aria.core.ThreadRecord;
 import com.arialyy.aria.orm.DbEntity;
+import com.arialyy.aria.orm.annotation.Default;
 import com.arialyy.aria.util.ALog;
 import com.arialyy.aria.util.DbDataHelper;
 import java.io.File;
@@ -78,6 +79,33 @@ public class M3U8Entity extends DbEntity implements Parcelable {
    */
   public String iv;
 
+  /**
+   * key的格式，可能为空
+   */
+  public String keyFormat;
+
+  /**
+   * key的格式版本，默认为1，如果是多个版本，使用"/"分隔，如："1", "1/2", or "1/2/5"
+   */
+  @Default("1")
+  public String keyFormatVersion = "1";
+
+  public String getKeyFormat() {
+    return keyFormat;
+  }
+
+  public void setKeyFormat(String keyFormat) {
+    this.keyFormat = keyFormat;
+  }
+
+  public String getKeyFormatVersion() {
+    return keyFormatVersion;
+  }
+
+  public void setKeyFormatVersion(String keyFormatVersion) {
+    this.keyFormatVersion = keyFormatVersion;
+  }
+
   public String getKeyPath() {
     return keyPath;
   }
diff --git a/app/src/main/java/com/arialyy/simple/core/download/KotlinDownloadActivity.kt b/app/src/main/java/com/arialyy/simple/core/download/KotlinDownloadActivity.kt
index 495a39c0..0afb5956 100644
--- a/app/src/main/java/com/arialyy/simple/core/download/KotlinDownloadActivity.kt
+++ b/app/src/main/java/com/arialyy/simple/core/download/KotlinDownloadActivity.kt
@@ -50,7 +50,7 @@ class KotlinDownloadActivity : BaseActivity<ActivitySingleKotlinBinding>() {
   private var mUrl: String? = null
   private var mFilePath: String? = null
   private var mModule: HttpDownloadModule? = null
-  private val mTaskId: Long = -1
+  private var mTaskId: Long = -1
 
   internal var receiver: BroadcastReceiver = object : BroadcastReceiver() {
     override fun onReceive(
@@ -104,7 +104,7 @@ class KotlinDownloadActivity : BaseActivity<ActivitySingleKotlinBinding>() {
         .get(HttpDownloadModule::class.java)
     mModule!!.getHttpDownloadInfo(this)
         .observe(this, Observer { entity ->
-          if (entity == null || entity.id < 0) {
+          if (entity == null) {
             return@Observer
           }
           if (entity.state == IEntity.STATE_STOP) {
@@ -286,14 +286,21 @@ class KotlinDownloadActivity : BaseActivity<ActivitySingleKotlinBinding>() {
   }
 
   private fun startD() {
-    Aria.download(this)
-        .load(mUrl!!)
-        //.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3")
-        //.addHeader("Accept-Encoding", "gzip, deflate")
-        //.addHeader("DNT", "1")
-        //.addHeader("Cookie", "BAIDUID=648E5FF020CC69E8DD6F492D1068AAA9:FG=1; BIDUPSID=648E5FF020CC69E8DD6F492D1068AAA9; PSTM=1519099573; BD_UPN=12314753; locale=zh; BDSVRTM=0")
-        .setFilePath(mFilePath!!, true)
-        .create()
+    if (mTaskId == -1L) {
+
+      mTaskId = Aria.download(this)
+          .load(mUrl!!)
+          //.addHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3")
+          //.addHeader("Accept-Encoding", "gzip, deflate")
+          //.addHeader("DNT", "1")
+          //.addHeader("Cookie", "BAIDUID=648E5FF020CC69E8DD6F492D1068AAA9:FG=1; BIDUPSID=648E5FF020CC69E8DD6F492D1068AAA9; PSTM=1519099573; BD_UPN=12314753; locale=zh; BDSVRTM=0")
+          .setFilePath(mFilePath!!, true)
+          .create()
+    } else {
+      Aria.download(this)
+          .load(mTaskId)
+          .resume()
+    }
   }
 
   override fun onStop() {
diff --git a/build.gradle b/build.gradle
index 72db2aac..42116f03 100644
--- a/build.gradle
+++ b/build.gradle
@@ -45,7 +45,7 @@ task clean(type: Delete) {
 
 ext {
   versionCode = 380
-  versionName = '3.7.10'
+  versionName = '3.8_pre_1'
   userOrg = 'arialyy'
   groupId = 'com.arialyy.aria'
   publishVersion = versionName