#基于 Zxing, 初学Android  代码质量不高

//长按，通过zxing读取图片，判断是否有二维码

bigImage.setOnLongClickListener(new View.OnLongClickListener() {

     @Override

     public boolean onLongClick(View viewm) {

         Bitmap obmp = ((BitmapDrawable) (bigImage).getDrawable()).getBitmap();

         int width = obmp.getWidth();

         int height = obmp.getHeight();

         int[] data = new int[width * height];

         obmp.getPixels(data, , width, , , width, height);

         RGBLuminanceSource source = new RGBLuminanceSource(width, height, data);

         BinaryBitmap bitmap1 = new BinaryBitmap(new HybridBinarizer(source));

         QRCodeReader reader = new QRCodeReader();

         Result re = null;

         try {

             re = reader.decode(bitmap1);

         } catch (NotFoundException e) {

             e.printStackTrace();

         } catch (ChecksumException e) {

             e.printStackTrace();

         } catch (FormatException e) {

             e.printStackTrace();

         }

         if (re == null) {

             showAlert(obmp);

         } else {

             showSelectAlert(obmp, re.getText());

         }

         return false;

     }

 });  

private void showAlert(final Bitmap bitmap) {

    AlertDialog.Builder builder = new AlertDialog.Builder(this);

    builder.setMessage("保存图片")

            .setCancelable(false)

            .setPositiveButton("确定", new DialogInterface.OnClickListener() {

                @Override

                public void onClick(DialogInterface dialogInterfacem, int i) {

                    saveImageToGallery(bitmap);

                }

            })

            .setNegativeButton("取消", new DialogInterface.OnClickListener() {

                @Override

                public void onClick(DialogInterface dialogInterfacem, int i) {

                }

            });

    builder.show();

}  

private void showSelectAlert(final Bitmap bitmap, final String url) {

    AlertDialog.Builder builder = new AlertDialog.Builder(this);

    builder.setTitle("请选择");

    String str[] = {"保存图片", "扫二维码"};

    builder.setItems(str, new DialogInterface.OnClickListener() {

        @Override

        public void onClick(DialogInterface dialogInterfacem, int i) {

            switch (i) {

                case : {

                    saveImageToGallery(bitmap);

                }

                break;

                case : {

                    Intent n = new Intent(EnlargeimagevActivity.this, DetailActivity.class);

                    n.putExtra(DetailActivity.BUNDLE_KEY_DISPLAY_TYPE, DetailActivity.WEBVIEW_DETAIL);

                    n.putExtra(DetailwebFragment.WEB_URL, url);

                    startActivity(n);

                }

                break;

            }

        }

    });

    builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

        @Override

        public void onClick(DialogInterface dialogInterfacem, int i) {  

        }

    });

    builder.show();

}