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use utf-8 in barcodes

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This commit is contained in:
Daniel Gultsch 2018-03-19 21:05:20 +01:00
parent 0f97b44e9f
commit b682aeb252
1 changed files with 155 additions and 154 deletions
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59
src/main/java/eu/siacs/conversations/services/BarcodeProvider.java
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@ -42,6 +42,36 @@ public class BarcodeProvider extends ContentProvider implements ServiceConnectio
private XmppConnectionService mXmppConnectionService;
private boolean mBindingInProcess = false;
public static Uri getUriForAccount(Context context, Account account) {
final String packageId = context.getPackageName();
return Uri.parse("content://" + packageId + AUTHORITY + "/" + account.getJid().asBareJid() + ".png");
}
public static Bitmap create2dBarcodeBitmap(String input, int size) {
try {
final QRCodeWriter barcodeWriter = new QRCodeWriter();
final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
final BitMatrix result = barcodeWriter.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
final int width = result.getWidth();
final int height = result.getHeight();
final int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
final int offset = y * width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.WHITE;
}
}
final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
} catch (final Exception e) {
e.printStackTrace();
return null;
}
}
@Override
public boolean onCreate() {
File barcodeDirectory = new File(getContext().getCacheDir().getAbsolutePath() + "/barcodes/");
@ -176,33 +206,4 @@ public class BarcodeProvider extends ContentProvider implements ServiceConnectio
Log.d(Config.LOGTAG, "not waiting for service because already initialized");
}
}
public static Uri getUriForAccount(Context context, Account account) {
final String packageId = context.getPackageName();
return Uri.parse("content://" + packageId + AUTHORITY + "/" + account.getJid().asBareJid() + ".png");
}
public static Bitmap create2dBarcodeBitmap(String input, int size) {
try {
final QRCodeWriter barcodeWriter = new QRCodeWriter();
final Hashtable<EncodeHintType, Object> hints = new Hashtable<>();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
final BitMatrix result = barcodeWriter.encode(input, BarcodeFormat.QR_CODE, size, size, hints);
final int width = result.getWidth();
final int height = result.getHeight();
final int[] pixels = new int[width * height];
for (int y = 0; y < height; y++) {
final int offset = y * width;
for (int x = 0; x < width; x++) {
pixels[offset + x] = result.get(x, y) ? Color.BLACK : Color.WHITE;
}
}
final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
} catch (final Exception e) {
e.printStackTrace();
return null;
}
}
}