Android二维码

依赖

implementation 'com.github.yuzhiqiang1993:zxing:2.1.4'
implementation 'com.android.support:design:28.0.0'

切记15 一定改16

报错是正常的！

    private String contentEtString = "小明";
    private ImageView image;

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.frag_2, container, false);
        initView(v);
        Bitmap logo = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
        try {
            //生成二维码需要用到类是CodeCreator
            Bitmap bitmap = CodeCreator.createQRCode(contentEtString, 400, 400, logo);
            image.setImageBitmap(bitmap);
        } catch (WriterException e) {
            e.printStackTrace();
        }
        return v;
    }

    private void initView(View v) {
        image = (ImageView) v.findViewById(R.id.image);
    }