Correctly render pdf in background, add callback for when a page has been rendered

Author: miseke-ffw

app/src/main/java/com/rajat/sample/pdfviewer/ComposeActivity.kt

@@ -101,7 +101,7 @@ fun MyPdfScreenFromUri(modifier: Modifier = Modifier) {
 @Composable
 fun MyPdfScreenFromUri(uri: Uri, modifier: Modifier = Modifier) {
     val lifecycleOwner = LocalLifecycleOwner.current
-    PdfRendererViewCompose(
+    Pdf(
         modifier = modifier,
         source = PdfSource.FromUri(uri),
         lifecycleOwner = lifecycleOwner,
@@ -136,7 +136,7 @@ fun MyPdfScreenFromUri(uri: Uri, modifier: Modifier = Modifier) {
 @Composable
 fun MyPdfScreenFromUrl(url: String, modifier: Modifier = Modifier) {
     val lifecycleOwner = LocalLifecycleOwner.current
-    PdfRendererViewCompose(
+    Pdf(
         modifier = modifier,
         source = PdfSource.FromUrl(url),
         lifecycleOwner = lifecycleOwner,
@@ -173,7 +173,7 @@ fun MyPdfScreenFromUrl(url: String, modifier: Modifier = Modifier) {
 fun MyPdfScreenFromFile() {
     val lifecycleOwner = LocalLifecycleOwner.current
     val pdfFile = File("path/to/your/file.pdf")  // Replace with your file path
-    PdfRendererViewCompose(
+    Pdf(
         source = PdfSource.FromFile(pdfFile),
         lifecycleOwner = lifecycleOwner
     )

pdfViewer/src/main/java/com/rajat/pdfviewer/PdfRenderResult.kt

@@ -0,0 +1,8 @@
+package com.rajat.pdfviewer
+
+import android.graphics.Bitmap
+
+sealed class PdfRenderResult(open val pageNo: Int) {
+    data class Error(override val pageNo: Int, val cause: Throwable? = null) : PdfRenderResult(pageNo)
+    data class Success(override val pageNo: Int, val bitmap: Bitmap) : PdfRenderResult(pageNo)
+}