Shortcut Doesn't Launch The File In Android Q

Edit:

I am getting below logs in system_process when I click the pinned shortcut:

2019-10-26 20:00:16.086 2047-3533/system_process I/ActivityTaskManager: START u0 {act=android.intent.action.VIEW dat=file:///storage/emulated/0/Download/AAD.pdf typ=application/pdf flg=0x10000000 cmp=com.google.android.apps.docs/com.google.android.apps.viewer.PdfViewerActivity bnds=[439,84][641,337]} from uid 10147
2019-10-26 20:00:16.100 2047-2047/system_process W/ActivityManager: Unable to start service Intent { act=android.service.appprediction.AppPredictionService cmp=com.google.android.as/com.google.android.apps.miphone.aiai.app.AiAiPredictionService } U=0: not found
2019-10-26 20:00:16.100 2047-2047/system_process W/RemoteAppPredictionService: could not bind to Intent { act=android.service.appprediction.AppPredictionService cmp=com.google.android.as/com.google.android.apps.miphone.aiai.app.AiAiPredictionService } using flags 67108865

In short, pinned shortcut isn't getting opened in Android 10 but works in older versions. In Android 10, when I click the shortcut, Drive PDF Viewer opens but actual file is shown with black space and within a second, the app closes.

OLD:

My Android app targets API level 28. It pins shortcut of a PDF file to home screen and clicking on the icon opens the file obviously. Till Android Pie, it worked really fine. But when I tested it on API 29, clicking the icon opens the PDF Viewer and force closes with no error. Here's the relevant code.

private fun addShortcutInOreo(path1: String, pdfName: String) {
        val file = File(path1)
        try {
            Log.d("Data", file.path)
            val pdfIntent = Intent(Intent.ACTION_VIEW)

            val uri = Uri.fromFile(file)

            pdfIntent.setDataAndType(uri, "application/pdf")
            pdfIntent.flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
            pdfIntent.flags = Intent.FLAG_GRANT_WRITE_URI_PERMISSION

            Log.d("DataPath", uri.path)
            Log.d("DataPath", pdfName)

            if (Build.VERSION.SDK_INT > 25) {
                val shortcutManager = getSystemService(ShortcutManager::class.java)

                // Check which icon is to be pinned
                image = if (blueIcon.isChecked)
                    R.drawable.pdf
                else
                    R.drawable.pdf2

                // Create a shortcut
                val shortcut = ShortcutInfo.Builder(this, pdfName)
                        .setShortLabel(pdfName)
                        .setLongLabel(pdfName)
                        .setIcon(Icon.createWithResource(this, image))
                        .setIntent(pdfIntent)
                        .build()

                shortcutManager.requestPinShortcut(shortcut, null)
            }
        } catch (e: Exception) {
            errorMessage(e)
        }

    }

The logged data is here. First line shows file path. Second line shows the Uri. Third line simply gives the extracted File Name. I did this just to check if everything is fine with my code.

2019-08-02 13:43:14.160 3306-3306/com.parassidhu.pdfpin D/Data: /storage/emulated/0/Download/Nakal.pdf
2019-08-02 13:43:14.160 3306-3306/com.parassidhu.pdfpin D/DataPath: file:///storage/emulated/0/Download/Nakal.pdf
2019-08-02 13:43:14.160 3306-3306/com.parassidhu.pdfpin D/DataPath: Nakal

The logs are the same for API 28:

2019-08-02 13:55:07.853 5341-5341/com.parassidhu.pdfpin D/Data: /storage/emulated/0/Download/Nakal.pdf
2019-08-02 13:55:07.853 5341-5341/com.parassidhu.pdfpin D/DataPath: file:///storage/emulated/0/Download/Nakal.pdf
2019-08-02 13:55:07.853 5341-5341/com.parassidhu.pdfpin D/DataPath: Nakal

Since there's no error, I'm scratching my head as what could be gone wrong. I have read about Scoped Storage in Android Q but that doesn't apply here as I am not targeting Q. I have read about other behaviour changes in Android Q but none does apply as far as I read.

What could be the issue? Thanks for reading!

Uri.fromFile() has been effectively banned since Android 7.0, as it triggers a FileUriExposedException.

Use FileProvider in your app and FileProvider.getUriForFile() to create the Uri to use in your Intent.