修复CrashSaveBean的activities数组可能为空的问题

common/src/main/java/com/yunbao/common/bean/CrashSaveBean.java

@@ -3,6 +3,7 @@ package com.yunbao.common.bean;
 import android.app.Activity;
 
 import java.lang.ref.WeakReference;
+import java.util.ArrayList;
 import java.util.List;
 
 /**
@@ -14,7 +15,7 @@ public class CrashSaveBean {
     private long enterRoom;//进入房间次数
     private long slidingRoom;//滑动直播间次数
     private long playSvga;//加载播放svga次数
-    private List<WeakReference<Activity>> activities;//Activity数量
+    private List<WeakReference<Activity>> activities = new ArrayList<>();//Activity数量
 
     private CrashSaveBean() {