图片高级压缩

String bucket = "examplebucket-1250000000"; //存储桶名称，格式：BucketName-APPID
String cosPath = "exampleobject"; //对象位于存储桶中的位置标识符，即对象键
String savePath = context.getExternalCacheDir().toString(); //本地路径

GetObjectRequest getObjectRequest = new GetObjectRequest(bucket, cosPath,
        savePath);
getObjectRequest.addQuery("imageMogr2/format/tpg", null);

cosXmlService.getObjectAsync(getObjectRequest, new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest cosXmlRequest,
                          CosXmlResult cosXmlResult) {
        GetObjectResult getObjectResult = (GetObjectResult) cosXmlResult;
    }

    // 如果您使用 kotlin 语言来调用，请注意回调方法中的异常是可空的，否则不会回调 onFail 方法，即：
    // clientException 的类型为 CosXmlClientException?，serviceException 的类型为 CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest cosXmlRequest,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});