AbGhost-cyber · October 28, 2020 04:55 · Oct 28, 2020
diff --git a/processPdf.kt b/processPdf.kt
@@ -0,0 +1,66 @@
+ private fun checkWritePermissionAndProcessPdf() {
+        ActivityCompat.requestPermissions(
+            requireActivity(),
+            arrayOf(android.Manifest.permission.WRITE_EXTERNAL_STORAGE), REQUEST_CODE
+        )
+        if (checkSelfPermission(
+                requireContext(),
+                android.Manifest.permission.WRITE_EXTERNAL_STORAGE
+            )
+            == PackageManager.PERMISSION_GRANTED
+        ) {
+            processPdf()
+        } else {
+           // show Snackbar toast message
+        }
+    }
+
+ private fun processPdf() {
+        val pageInfo = PdfDocument.PageInfo.Builder(2250, 1400, 1).create()
+        val document = PdfDocument()
+        val page = document.startPage(pageInfo)
+        val content =
+            this.requireActivity().window.decorView.findViewById<ConstraintLayout>(R.id.your_parent_view)
+
+        content.measure(2480, 3508)
+        content.layout(0, 0, 2480, 3508)
+
+        val measureWidth = View.MeasureSpec.makeMeasureSpec(
+            page.canvas.width,
+            View.MeasureSpec.EXACTLY
+        )
+        val measuredHeight = View.MeasureSpec.makeMeasureSpec(
+            page.canvas.height,
+            View.MeasureSpec.EXACTLY
+        )
+
+        content.measure(measureWidth, measuredHeight)
+        content.layout(0, 0, page.canvas.width, page.canvas.height)
+        content.draw(page.canvas)
+
+        document.finishPage(page)
+        val pdfFolder = File(
+            requireContext().externalCacheDir?.absolutePath,
+            "your child path here"
+        )
+
+        if (!pdfFolder.exists()) {
+            pdfFolder.mkdirs()
+            Timber.i("Pdf Directory created")
+        }
+
+        //Create time stamp
+        val date = Date()
+        val timeStamp = SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(date)
+        val fileNamePath = "$pdfFolder$timeStamp.pdf"
+        val myFile = File(fileNamePath)
+
+        val output: OutputStream = FileOutputStream(myFile)
+
+              try {
+                    document.writeTo(output)
+                    //you can restore the parent layout params here
+                } catch (e: IOException) {
+
+                }
+    }