android - How to generate an Barcode and convert it to Bitmap using new Google Vision API? -

how generate barcode , convert bitmap using new google vision api?

barcode barcode = new barcode(); barcode.email email = new barcode.email(); email.address = "my_email@gmail.com"; email.subject = "my subject; email.body = "my body content."; barcode.email = email; 

//implement conversion bitmap barcodeimage = barcodetobitmap(barcode);// know part.

you can detect barcodes using google vision api , use zxing generate barcodes. try this, uses zxing library:

public static bitmap getbitmap(string barcode, int barcodetype, int width, int height) {     bitmap barcodebitmap = null;     barcodeformat barcodeformat = converttozxingformat(barcodetype);     try     {         barcodebitmap = encodeasbitmap(barcode, barcodeformat, width, height);     }     catch (writerexception e)     {         e.printstacktrace();     }     return barcodebitmap; }  private static barcodeformat converttozxingformat(int format) {     switch (format)     {         case 8:             return barcodeformat.codabar;         case 1:             return barcodeformat.code_128;         case 2:             return barcodeformat.code_39;         case 4:             return barcodeformat.code_93;         case 32:             return barcodeformat.ean_13;         case 64:             return barcodeformat.ean_8;         case 128:             return barcodeformat.itf;         case 512:             return barcodeformat.upc_a;         case 1024:             return barcodeformat.upc_e;         //default 128?         default:             return barcodeformat.code_128;     } }   /**************************************************************  * getting com.google.zxing.client.android.encode.qrcodeencoder  *  * see sites below  * http://code.google.com/p/zxing/  * http://code.google.com/p/zxing/source/browse/trunk/android/src/com/google/zxing/client/android/encode/encodeactivity.java  * http://code.google.com/p/zxing/source/browse/trunk/android/src/com/google/zxing/client/android/encode/qrcodeencoder.java  */  private static final int white = 0xffffffff; private static final int black = 0xff000000;  private static bitmap encodeasbitmap(string contents, barcodeformat format, int img_width, int img_height) throws writerexception {     if (contents == null) {         return null;     }     map<encodehinttype, object> hints = null;     string encoding = guessappropriateencoding(contents);     if (encoding != null) {         hints = new enummap<>(encodehinttype.class);         hints.put(encodehinttype.character_set, encoding);     }     multiformatwriter writer = new multiformatwriter();     bitmatrix result;     try {         result = writer.encode(contents, format, img_width, img_height, hints);     } catch (illegalargumentexception iae) {         // unsupported format         return null;     }     int width = result.getwidth();     int height = result.getheight();     int[] pixels = new int[width * height];     (int y = 0; y < height; y++) {         int offset = y * width;         (int x = 0; x < width; x++) {             pixels[offset + x] = result.get(x, y) ? black : white;         }     }      bitmap bitmap = bitmap.createbitmap(width, height,             bitmap.config.argb_8888);     bitmap.setpixels(pixels, 0, width, 0, 0, width, height);     return bitmap; }  private static string guessappropriateencoding(charsequence contents) {     // crude @ moment     (int = 0; < contents.length(); i++) {         if (contents.charat(i) > 0xff) {             return "utf-8";         }     }     return null; } 

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