// 读取Asset中的图片
private static InputStream loadInputStreamFromAssetFile(Context context, String fileName){
    AssetManager am = context.getAssets();
    try {
        return am.open(fileName);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

private static ByteArrayOutputStream readDataFromInpuStream(InputStream inputStream) {
    try {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        byte[] buffer = new byte[8192];
        int bytesRead;
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            output.write(buffer, 0, bytesRead);
        }
        return output;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

// 使用百度智能云HEIF图片加载SDK进行解码
private void decodeImageWithBaidu(byte[] heifData) {
    ImageView image = mRootView.findViewById(R.id.image_bdcloud);
    try {
        // 获取HEIF图片元数据
        HeifInfo heifInfo = new HeifInfo();
        HeifDecoder.getInfo(heifData.length, heifData, heifInfo);
        // 当前仅支持单帧静图解码
        HeifSize heifSize = heifInfo.getFrameList().get(0);
        // 获取HEIF图片宽高
        int width = heifSize.getWidth();
        int height = heifSize.getHeight();
        // 创建Android Bitmap
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        // 将HEIF图片解码为Bitmap
        HeifDecoder.toRgba(heifData.length, heifData, bitmap);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return;
}

// 完整业务流程展示
private void showLocalImage() {
    InputStream inputStream = loadInputStreamFromAssetFile(mContext, DEFAULT_LOCAL_IMG_URL);
    if (inputStream == null) {
        return;
    }

    ByteArrayOutputStream baos = readDataFromInpuStream(inputStream);
    if (baos == null) {
        return;
    }
    
    byte[] heifData = baos.toByteArray();
    decodeImageWithBaidu(heifData);
    
    try {
        inputStream.close();
    } catch (IOException e) {
        e.printStackTrace();
    }

    try {
        baos.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return;
}