我想生成一份报告pdf，计算总订单数和状态为通缉的订单数我有这段代码可以创建pdf并填写表格privateTemplatePDFtemplatePDF;FirebaseDatabasedatabase;DatabaseReferencereference;ButtonbtnRatio1;ArrayListrowqa=newArrayList();@OverrideprotectedvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.activi