android应用出现ANR

Question

目前应用程序中有一个打印的方法，比较耗费时间，页面上当点击打印后调用该方法时当文件比较大的时候出现了ANR,请问如何解决？谢谢各位了
代码如下：

//按钮点击后请求该方法，判断是否可以打印
class expenseMCoinByStudentId  extends AsyncTask<String, Void, String> {
        @Override
        protected String doInBackground(String... strings) {
            String url = HttpConstant.expenseMCoinByStudentId;
            String postString = "studentId="+studentId+"&resourceType="+resourceType+"&resourceId="+resourceId+"&course="+course
                    +"&mchnId="+mchnId+"&expenseMCoin="+expenseMCoin+"&pageSize="+pageSize+"&pageCount="+zhang+"&resourceName="+resourceName
                    +"&errorBookName="+errorBookName+"&errorBookId="+errorBookId+"&qOrA="+qOrA;
            LogUtils.e("expenseMCoinByStudentId：" , postString);
            String json = HttpConnectionUtil.AccessUrlGET(getContext(),url+"?"+postString);
            LogUtils.e("json：" , json);
            return json;
        }

        @Override
        protected void onPostExecute(String result) {
            super.onPostExecute(result);
            ApiResponse<String> info = JsonUtils.jsonToJavaBean(result, ApiResponse.class);
            if (info.getCode() != null && info.getCode().equals("10000")) {
                Map<String,String> orderInfo = JsonUtils.jsonToJavaBean(JSONArray.toJSONString(info.getData()), Map.class);
                //LogUtils.e("orderId：" , orderInfo.get("orderId"));
                CreateOrderParams createOrderParams = new CreateOrderParams();
                createOrderParams.setStudentId(studentId);
                createOrderParams.setOrderId(orderInfo.get("orderId"));
                try{
                    //请求正常后进行这个比较耗时的打印，目前试过起一个线程执行打印程序还是会崩溃
                    //下边的这个方法内部封装别人的jar，给个文件的url进行自行下载和打印，没法做更多的修改
                    printPdf(createOrderParams);
                } catch (Exception e) {
                    ToastUtil.showShort(getContext(),e.getMessage());
                    LogUtils.e("printErr",e.getMessage());
                }

            }
        }
    }

Answer 1

1、可以贴一下ANR的异常trace文件；2、printPdf可以放到doInBackground内执行