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Minor cleanups in PDF barcode retrieval (#1807)

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This commit is contained in:
Dimitrios Papathanasiou
2024-03-31 13:08:21 +03:00
committed by GitHub
parent c1ef5c346a
commit bdff59e628
1 changed files with 36 additions and 25 deletions
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61
app/src/main/java/protect/card_locker/Utils.java
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@@ -169,46 +169,57 @@ public class Utils {
static public List<BarcodeValues> retrieveBarcodesFromPdf(Context context, Uri uri) {
Log.i(TAG, "Received PDF file with possible barcode");
if (uri == null) {
Log.e(TAG, "Uri did not contain any data");
Toast.makeText(context, R.string.errorReadingFile, Toast.LENGTH_LONG).show();
return new ArrayList<>();
}
ParcelFileDescriptor parcelFileDescriptor;
PdfRenderer renderer;
ParcelFileDescriptor parcelFileDescriptor = null;
PdfRenderer renderer = null;
List<BarcodeValues> barcodesFromPdfPages = new ArrayList<>();
try {
parcelFileDescriptor = context.getContentResolver().openFileDescriptor(uri, "r");
renderer = new PdfRenderer(parcelFileDescriptor);
if (parcelFileDescriptor != null) {
renderer = new PdfRenderer(parcelFileDescriptor);
// Loop over all pages to find barcodes
Bitmap renderedPage;
for (int i = 0; i < renderer.getPageCount(); i++) {
PdfRenderer.Page page = renderer.openPage(i);
renderedPage = Bitmap.createBitmap(page.getWidth(), page.getHeight(), Bitmap.Config.ARGB_8888);
page.render(renderedPage, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
page.close();
List<BarcodeValues> barcodesFromPage = getBarcodesFromBitmap(renderedPage);
for (BarcodeValues barcodeValues : barcodesFromPage) {
barcodeValues.setNote(String.format(context.getString(R.string.pageWithNumber), i+1));
barcodesFromPdfPages.add(barcodeValues);
}
}
}
} catch (IOException e) {
Log.e(TAG, "Could not read file in uri");
Log.e(TAG, "Error reading PDF file", e);
Toast.makeText(context, R.string.errorReadingFile, Toast.LENGTH_LONG).show();
return new ArrayList<>();
}
// Loop over all pages to find barcodes
List<BarcodeValues> barcodesFromPdfPages = new ArrayList<>();
Bitmap renderedPage;
for (int i = 0; i < renderer.getPageCount(); i++) {
PdfRenderer.Page page = renderer.openPage(i);
renderedPage = Bitmap.createBitmap(page.getWidth(), page.getHeight(), Bitmap.Config.ARGB_8888);
page.render(renderedPage, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
page.close();
List<BarcodeValues> barcodesFromPage = getBarcodesFromBitmap(renderedPage);
for (BarcodeValues barcodeValues : barcodesFromPage) {
barcodeValues.setNote(String.format(context.getString(R.string.pageWithNumber), i+1));
barcodesFromPdfPages.add(barcodeValues);
} finally {
// Resource handling
if (renderer != null) {
renderer.close();
}
if (parcelFileDescriptor != null) {
try {
parcelFileDescriptor.close();
} catch (IOException e) {
Log.e(TAG, "Error closing ParcelFileDescriptor", e);
}
}
}
renderer.close();
if (barcodesFromPdfPages.isEmpty()) {
Log.i(TAG, "No barcode found in pdf file");
Toast.makeText(context, R.string.noBarcodeFound, Toast.LENGTH_LONG).show();
}
return barcodesFromPdfPages;
}