下载任务数支持修改

app/src/main/java/com/arialyy/simple/adapter/DownloadAdapter.java

@@ -133,6 +133,10 @@ public class DownloadAdapter extends AbsRVAdapter<DownloadEntity, DownloadAdapte
     });
   }
 
+  public void setDownloadNum(int num) {
+    mManager.getTaskQueue().setDownloadNum(num);
+  }
+
   private String covertCurrentSize(long currentSize) {
     String size = CommonUtil.formatFileSize(currentSize);
     return size.substring(0, size.length() - 1);