fix the crash caused by the empty mListPack of NewRecordActivity

src/app/src/main/java/com/alipay/hulu/activity/NewRecordActivity.java

@@ -318,6 +318,11 @@ public void onClick(View v) {
         });
 
         mListPack = MyApplication.getInstance().loadAppList();
+        if (mListPack.isEmpty()) {
+            toastShort(R.string.record__app_list_empty);
+            finish();
+            return;
+        }
 
         int position = 0;
         if (!StringUtil.isEmpty(app)) {
@@ -350,6 +355,9 @@ private void initAppHeadView() {
                 }
             }
         }
+        if (mListPack.isEmpty()) {
+            return;
+        }
         mCurrentApp = mListPack.get(position);
 
         updateHeadView();

src/app/src/main/res/values-zh/strings.xml

@@ -126,6 +126,7 @@
     <string name="record__preparing">正在准备中</string>
     <string name="record__prepare_failed">环境准备失败</string>
     <string name="record__case_name_empty">用例名不能为空</string>
+    <string name="record__app_list_empty">已安装应用列表不能为空</string>
     <string name="activity__record">录制回放</string>
     <string name="index__disclaimer">免责声明</string>
     <string name="replay__delete_case">删除此用例？</string>

src/app/src/main/res/values/strings.xml

@@ -127,6 +127,7 @@
     <string name="record__preparing">Preparing</string>
     <string name="record__prepare_failed">Environment preparing fail.</string>
     <string name="record__case_name_empty">Case name should not be empty.</string>
+    <string name="record__app_list_empty">Installed app should not be empty.</string>
     <string name="activity__record">Record &amp; Replay</string>
     <string name="index__disclaimer">Disclaimer</string>
     <string name="replay__delete_case">Delete?</string>