Fix xml source make crash

app/src/main/java/com/fongmi/bear/bean/Result.java

@@ -40,7 +40,7 @@ public class Result {
     }
 
     public List<Class> getTypes() {
-        return types;
+        return types == null ? Collections.emptyList() : types;
     }
 
     public List<Vod> getList() {

app/src/main/java/com/fongmi/bear/ui/activity/VodActivity.java

@@ -58,7 +58,7 @@ public class VodActivity extends BaseActivity {
 
     private void setPager() {
         mBinding.pager.setAdapter(new PageAdapter(this, mResult.getTypes(), mResult.getFilters()));
-        mBinding.pager.setOffscreenPageLimit(mResult.getTypes().size());
+        if (mResult.getTypes().size() > 0) mBinding.pager.setOffscreenPageLimit(mResult.getTypes().size());
         mBinding.pager.setUserInputEnabled(false);
     }
 }