修复 没有上传图片也可以提交的问题，导致挂掉

app/src/main/java/com/sheep/gamegroup/view/activity/ActInputAndPickerImg.java

@@ -100,7 +100,7 @@ public class ActInputAndPickerImg extends AbsChooseImageActivity {
             G.showToast(getString(R.string.x_cant_is_null, label));
             return;
         }
-        if (inputAndUrlList.getList().isEmpty()) {
+        if (inputAndUrlList.getList().isEmpty() || inputAndUrlList.getList().get(0) == null) {
             G.showToast(R.string.need_picker_img);
             return;
         }