我们的项目需要一个 压缩图片后上传到指定地址并返回url 的功能,Activity需要获取这个url做一些处理。我写的代码大概是这样的
/** * url是服务器地址,img_path是文件本地路径,Action是自己写的一个接口 */ public void UploadImg(final String url, final String img_path, final Action action) { Luban.get(context)//这个context是Application .load(new File(img_path)) .asObservable() .timeout(10, TimeUnit.SECONDS) .subscribeOn(Schedulers.io()) .subscribe(subscriber = new Subscriber() { @Override public void onCompleted() {} @Override public void onError(Throwable e) { action.onError(e, new File(img_path)); } @Override public void onNext(final File file) { //原项目用xutils上传图片 RequestParams params = new RequestParams(); params.addBodyParameter("img", file); HttpUtils http = new HttpUtils(10000); http.configTimeout(10000) .configCurrentHttpCacheExpiry(10000) .send(HttpRequest.HttpMethod.POST, url, params, new RequestCallBack () { @Override public void onStart() {} @Override public void onLoading(long total, long current, boolean isUploading) {} @Override public void onSuccess(ResponseInfo responseInfo) { Log.i(TAG, "http onSuccess: " + Thread.currentThread().getName()); action.onSuccess(responseInfo.result, file); } @Override public void onFailure(HttpException error, String msg) { error.printStackTrace(); action.onError(error, file); } }); } }); }
activity中是这样的
BitmapUtils.getInstance().UploadImg(APIService.URL_SEND_PIC, IMG_PATH_FLAG, new BitmapUtils.Action() { @Override public void onStart() { showProgressDialog(); } @Override public void onUpdate(int total, int current) { } @Override public void onSuccess(String json, File img) { setImgInfo(json);//需要对Activity中一些变量进行操作 } @Override public void onError(Throwable t, File img) { cacheImg(img);//涉及到数据库操作... } });
在这个回调里引起了很严重的内存泄漏
请问有什么办法能避免吗,或者直接改写也行
我用的是这个压缩图片https://github.com/Curzibn/Luban
配合rxjava然后上传,我也用了LeakCanary,没有内存泄漏
/** * 上传图片 * * @param context * @param fileUrl * @throws FileNotFoundException */ public static void upLoadFile(final Context context, final String fileUrl, Observer<ImageGet> observer) { final ApiService apiservice = Api.createApiService(); Uri uri = Uri.parse(fileUrl); final File file = new File(uri.getPath()); Luban.get(context) .load(file) .putGear(Luban.THIRD_GEAR) .asObservable() .doOnError(new Action1<Throwable>() { @Override public void call(Throwable throwable) { throwable.printStackTrace(); } }) .onErrorResumeNext(new Func1<Throwable, Observable<? extends File>>() { @Override public Observable<? extends File> call(Throwable throwable) { return Observable.empty(); } }) .flatMap(new Func1<File, Observable<ImageGet>>() { @Override public Observable<ImageGet> call(File file) { RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file); MultipartBody.Part picturePart = MultipartBody.Part.createFormData("Filedata", file.getName(), requestFile); return apiservice.postImage(UserUtil.getUser(context).getToken(), picturePart); } }) .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe(observer); }