不打开pdf文件的意图

Question

我找到了这个答案https://stackoverflow.com/a/10689094/11520105，然后尝试了此代码，它弹出对话框来选择pdfviewer，当我点击Adobe Reader时，它只是启动Adobe Reader而没有启动pdf文件

代码段

pdflistView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

               UploadPDF uploadPDF = list.get(position);
               String url = uploadPDF.getUrl();
               Log.i("url",url);
                Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse(url));
                intent.setType("application/pdf");
                PackageManager pm = getPackageManager();
                List<ResolveInfo> activities = pm.queryIntentActivities(intent, 0);
                if (activities.size() > 0) {
                    startActivity(intent);
                } else {
                    // Do something else here. Maybe pop up a Dialog or Toast
                    Toast.makeText(ShowPdfActivity.this, "Can't open pdf", Toast.LENGTH_SHORT).show();
                }

logCat

2020-01-01 18:05:56.259 15148-15148/com.tarandeepsingh.inventory V/FA: onActivityCreated
2020-01-01 18:05:56.306 15148-15186/com.tarandeepsingh.inventory V/FA: Activity resumed, time: 2896415632
2020-01-01 18:05:56.320 15148-15186/com.tarandeepsingh.inventory D/FA: Logging event (FE): screen_view(_vs), Bundle[{ga_event_origin(_o)=auto, ga_previous_class(_pc)=MainActivity, ga_previous_id(_pi)=3485492302754114157, ga_screen_class(_sc)=ShowPdfActivity, ga_screen_id(_si)=3485492302754114159}]
2020-01-01 18:05:57.157 15148-15148/com.tarandeepsingh.inventory I/url: https://firebasestorage.googleapis.com/v0/b/inventory-b98d3.appspot.com/o/uploads%2F1577868311721.pdf?alt=media&token=e543f039-38bd-4881-bcff-48b533ff22bf
2020-01-01 18:05:57.165 15148-15148/com.tarandeepsingh.inventory I/Timeline: Timeline: Activity_launch_request time:644743239 intent:Intent { act=android.intent.action.VIEW typ=application/pdf }
2020-01-01 18:05:57.200 15148-15186/com.tarandeepsingh.inventory V/FA: Screen exposed for less than 1000 ms. Event not sent. time: 889
2020-01-01 18:05:57.207 15148-15186/com.tarandeepsingh.inventory V/FA: Activity paused, time: 2896416520
2020-01-01 18:05:59.218 15148-15186/com.tarandeepsingh.inventory D/FA: Application going to the background
2020-01-01 18:05:59.235 15148-15186/com.tarandeepsingh.inventory D/FA: Logging event (FE): app_background(_ab), Bundle[{ga_event_origin(_o)

您可以在logcat中看到，我正在获取url，但无法启动默认/已经安装的pdf查看器

感谢

Answer 1

要处理您的需求，您需要下载PDF