6.Q&A.md

@@ -37,3 +37,31 @@
         android:usesCleartextTraffic="true">
 
 ```
+
+## 6.5 加密等级V4升级V6离线视频无法播放问题
+1.排查下项目中是否有libdwmedia.so库
+
+2.全局是否有调用该api
+
+```java
+DWSdkStorage myStorage = new DWSdkStorage() {
+  private final SharedPreferences sp = getApplicationContext().getSharedPreferences("mystorage", MODE_PRIVATE);
+
+  @Override
+  public void put(String key, String value) {
+    SharedPreferences.Editor editor = sp.edit();
+    editor.putString(key, value);
+    editor.commit();
+  }
+
+  @Override
+  public String get(String key) {
+    return sp.getString(key, "");
+  }
+};
+DWStorageUtil.setDWSdkStorage(myStorage);
+```
+
+##### 注意事项：
+
+如果在没有调用解决方案第二步的代码下载的视频，需要重新下载
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