ZXing二维码扫描解析及生成

依赖导入

/*Zxing 二维码处理*/
    implementation 'cn.yipianfengye.android:zxing-library:2.2'

Activity调用

created

 public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.btn_scan://扫一扫
                startActivityForResult(new Intent(MainActivity.this, CaptureActivity.class), 1);
                break;
            case R.id.btn_album://相册解析
                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                //指定动作---打开相册
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                intent.setType("image/*");
                //回传值
                startActivityForResult(intent, 999);
                break:
                 case R.id.btn_produce://生成二维码
                String msou = sou.getText().toString().trim();
                if (TextUtils.isEmpty(msou)) {
                    return;
                }
                Bitmap image = CodeUtils.createImage(msou, 300, 300, BitmapFactory.decodeResource
                        (getResources(), 0));
                imgQricon.setImageBitmap(image);
                break;
        }
    }

result

 /**
         * 二维码扫描
         */
        if (requestCode == 1) {
            //处理扫描结果(在界面上显示)
            if (data != null) {
                Bundle bundle = data.getExtras();
                if (bundle == null) {
                    return;
                }
                if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_SUCCESS) {
                    String result = bundle.getString(CodeUtils.RESULT_STRING);
                    Toast.makeText(this, "解析结果" + result, Toast.LENGTH_LONG).show();
                } else if (bundle.getInt(CodeUtils.RESULT_TYPE) == CodeUtils.RESULT_FAILED) {
                    Toast.makeText(this, "解析二维码失败", Toast.LENGTH_LONG).show();
                }
            }

        }


        if (data != null) {
            Uri uri = data.getData();
            ContentResolver cr = getContentResolver();
            try {
                Bitmap mBitmap = MediaStore.Images.Media.getBitmap(cr, uri);//显得到bitmap图片
                CodeUtils.analyzeBitmap(ImageUtils.getImageAbsolutePath(MainActivity.this, uri),
                        new CodeUtils.AnalyzeCallback() {
                    @Override
                    public void onAnalyzeSuccess(Bitmap mBitmap, String result) {
                        Toast.makeText(MainActivity.this, "解析结果:" + result, Toast.LENGTH_LONG)
                                .show();
                    }

                    @Override
                    public void onAnalyzeFailed() {
                        Toast.makeText(MainActivity.this, "解析二维码失败", Toast.LENGTH_LONG).show();
                    }
                });

                if (mBitmap != null) {
                    mBitmap.recycle();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

ImageUtils

public class ImageUtils {
    /**
     * 根据Uri获取图片绝对路径，解决Android4.4以上版本Uri转换
     *
     * @param context
     * @param imageUri
     */
    @TargetApi(19)
    public static String getImageAbsolutePath(Context context, Uri imageUri) {
        if (context == null || imageUri == null)
            return null;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT && DocumentsContract.isDocumentUri(context, imageUri)) {
            if (isExternalStorageDocument(imageUri)) {
                String docId = DocumentsContract.getDocumentId(imageUri);
                String[] split = docId.split(":");
                String type = split[0];
                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }
            } else if (isDownloadsDocument(imageUri)) {
                String id = DocumentsContract.getDocumentId(imageUri);
                Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                return getDataColumn(context, contentUri, null, null);
            } else if (isMediaDocument(imageUri)) {
                String docId = DocumentsContract.getDocumentId(imageUri);
                String[] split = docId.split(":");
                String type = split[0];
                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                String selection = MediaStore.Images.Media._ID + "=?";
                String[] selectionArgs = new String[]{split[1]};
                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        } // MediaStore (and general)
        else if ("content".equalsIgnoreCase(imageUri.getScheme())) {
            // Return the remote address
            if (isGooglePhotosUri(imageUri))
                return imageUri.getLastPathSegment();
            return getDataColumn(context, imageUri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(imageUri.getScheme())) {
            return imageUri.getPath();
        }
        return null;
    }

    public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
        Cursor cursor = null;
        String column = MediaStore.Images.Media.DATA;
        String[] projection = {column};
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
            if (cursor != null && cursor.moveToFirst()) {
                int index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Google Photos.
     */
    public static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }
}