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  • 常用的有关文件上传下载的框架和图片加载框架


    #服务端和客户端交互
    服务器:接收文件,并且把文件,存储到指定目录,对文件进行命名的等操作。

    客户端:选定文件,拼接参数,上传到指定服务器上。


    #购买服务器(阿里云服务器或者自己搭建服务器)


    #搭建服务器(软件服务器)

     源码环境:
    jre7 tomcat7

    1、将.war文件复制到tomcat服务器webapps下,启动服务器即可

    2、访问工程路径a即可测试上传

    b/s架构  通过浏览器上传

    c/s结构  通过Android端上传


    上传文件服务地址:
    http://192.168.10.168:8080/FileUpload/FileUploadServlet


    #利用xUtils3上传多个文件,代码如下

     // 上传多文件示例
        @Event(value = R.id.btn_test2)
        private void onTest2Click(View view) throws FileNotFoundException {


            RequestParams params = new RequestParams("http://192.168.10.168:8080/FileUpload/FileUploadServlet");


            // 加到url里的参数, http://xxxx/s?wd=xUtils
            params.addQueryStringParameter("wd", "xUtils");//name=yangguangfu?password=1233445

            // 添加到请求body体的参数, 只有POST, PUT, PATCH, DELETE请求支持.
            // params.addBodyParameter("wd", "xUtils");

            // 使用multipart表单上传文件
            params.setMultipart(true);//设置支持多个文件上传


            //具体的某一个文件
            params.addBodyParameter(
                    "file1",
                    new File("/mnt/sdcard/1.jpg"),
                    null); // 如果文件没有扩展名, 最好设置contentType参数.

         //具体的某一个文件
            params.addBodyParameter(
                    "file2",
                    new File("/mnt/sdcard/2.jpg"),
                    null); // 如果文件没有扩展名, 最好设置contentType参数.




            x.http().post(params, new Callback.CommonCallback<String>() {
                @Override
                public void onSuccess(String result) {
                    Toast.makeText(x.app(), result + "上传成功", Toast.LENGTH_LONG).show();
                }

                @Override
                public void onError(Throwable ex, boolean isOnCallback) {
                    Toast.makeText(x.app(), ex.getMessage() + "上传失败", Toast.LENGTH_LONG).show();
                }

                @Override
                public void onCancelled(CancelledException cex) {
                    Toast.makeText(x.app(), "cancelled", Toast.LENGTH_LONG).show();
                }

                @Override
                public void onFinished() {
                    Toast.makeText(x.app(), "onFinished", Toast.LENGTH_LONG).show();
                }
            });
        }


    #利用使用xUtils下载文件列表

    下载地址:
    http://192.168.10.168:8080/oppo.mp4

     // 添加到下载列表
        @Event(value = R.id.btn_test3)
        private void onTest3Click(View view) throws DbException {
            for (int i = 0; i < 5; i++) {
                String url = et_url.getText().toString();//得到下载的地址
                String label = i + "xUtils_" + System.nanoTime();//下载的到本地的命名
                DownloadService.getDownloadManager().startDownload(
                        url, label,
                        "/sdcard/xUtils/" + label + ".mp4", true, false, null);
            }
        }


    #利用使用xUtils下载单个文件


            String url = "http://192.168.10.168:8080/oppo.mp4";
            String label = "oppo_" + "afua" + System.nanoTime();

            DownloadService.getDownloadManager().startDownload(
                    url, label,
                    "/sdcard/xUtils/" + label + ".mp4", true, false, null);

    #打开下载列表
       @Event(value = R.id.btn_test4)
        private void onTest4Click(View view) throws DbException {
            getActivity().startActivity(new Intent(getActivity(), DownloadActivity.class));
        }


    #AFinla的使用

    1.添加权限
        <uses-permission android:name="android.permission.INTERNET" />
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    2.把jar包拷贝到项目的lib目录下

    3.普通文本的请求,代码如下:

         public void getDete(View view){
                FinalHttp fh = new FinalHttp();
                fh.get("https://github.com/yangfuhai/afinal", new AjaxCallBack(){
        
                    @Override
                    public void onLoading(long count, long current) { //每1秒钟自动被回调一次
                        textView.setText(current+"/"+count);
                    }
        
                    @Override
                    public void onSuccess(Object o) {
                        super.onSuccess(o);
                        textView.setText(o.toString());
                    }
        
                    @Override
                    public void onStart() {
                        //开始http请求的时候回调
                    }
        
                });
            }


    4.Afinal文件的下载

          public void downloadFile(View view){
                FinalHttp fh = new FinalHttp();
                fh.download("http://192.168.10.168:8080/oppo.mp4", "/mnt/sdcard/afinloop.mp4", new AjaxCallBack<File>() {
                    @Override
                    public void onSuccess(File file) {
                        super.onSuccess(file);
                        Toast.makeText(MainActivity.this,"下载成功",Toast.LENGTH_SHORT).show();
                    }
        
                    @Override
                    public AjaxCallBack<File> progress(boolean progress, int rate) {
                        return super.progress(progress, rate);
                    }
        
                    @Override
                    public void onStart() {
                        super.onStart();
                        Toast.makeText(MainActivity.this,"onStart",Toast.LENGTH_SHORT).show();
                    }
        
                    @Override
                    public void onLoading(long count, long current) {
                        super.onLoading(count, current);
                    }
        
                    @Override
                    public boolean isProgress() {
                        return super.isProgress();
                    }
        
                    @Override
                    public int getRate() {
                        return super.getRate();
                    }
                });
        
        //
            }
    下载地址:http://download.csdn.net/detail/sinat_32804317/9551489

    #okhttp的使用 有三种使用方式
    第一种使用方式.关联库文件
    第二种使用方式.把jar拷贝到工程lib目录下关联jar
    第三种使用方式.在联网情况下
    compile 'com.squareup.okhttp:okhttp:2.4.0'
    gradle: compile 'com.squareup.okio:okio:1.5.0'


    #okhttp的使用 请求普通的文本

       /**
     * get请求
         * 请求文本信息
     * @param view
     */
        public void getHtml(View view)
        {
            String url = "http://192.168.10.168:8080/zhbj/categories.json";
            OkHttpUtils
                    .get()
                    .url(url)
                    .build()
                    .execute(new MyStringCallback());
        }


      public class MyStringCallback extends StringCallback
        {
            @Override
            public void onBefore(Request request)
            {
                super.onBefore(request);
                setTitle("loading...");
            }

            @Override
            public void onAfter()
            {
                super.onAfter();
                setTitle("Sample-okHttp");
            }

            @Override
            public void onError(Request request, Exception e)
            {
                mTv.setText("onError:" + e.getMessage());
            }

            @Override
            public void onResponse(String response)
            {
                mTv.setText("onResponse" + response);
            }

            @Override
            public void inProgress(float progress)
            {
                Log.e(TAG, "inProgress:" + progress);
                mProgressBar.setProgress((int) (100 * progress));
            }
        }


    #okhttp的使用-大文件的下载


        /**
         * 下载文件
         * @param view
         */
        public void downloadFile(View view)
        {
            String url = "http://192.168.10.168:8080/oppo.mp4";
            OkHttpUtils//
                    .get()//
                    .url(url)//
                    .build()//
                    .execute(new FileCallBack(Environment.getExternalStorageDirectory().getAbsolutePath(), "okhttpoppo.mp4")//
                    {

                        @Override
                        public void onBefore(Request request)
                        {
                            super.onBefore(request);
                        }

                        @Override
                        public void inProgress(float progress)
                        {
                            mProgressBar.setProgress((int) (100 * progress));
                        }

                        @Override
                        public void onError(Request request, Exception e)
                        {
                            Log.e(TAG, "onError :" + e.getMessage());
                        }

                        @Override
                        public void onResponse(File file)
                        {
                            Log.e(TAG, "onResponse :" + file.getAbsolutePath());
                        }
                    });
        }



    #okhttp的使用-单个文件的上传


        /**
             * 上传文件
             * @param view
             */
            public void uploadFile(View view)
            {
        
                File file = new File(Environment.getExternalStorageDirectory(), "1.jpg");
                if (!file.exists())
                {
                    Toast.makeText(MainActivity.this, "文件不存在,请修改文件路径", Toast.LENGTH_SHORT).show();
                    return;
                }
                Map<String, String> params = new HashMap<>();
        //        params.put("username", "杨光福");
        //        params.put("password", "123");
                Map<String, String> headers = new HashMap<>();
                headers.put("APP-Key", "APP-Secret222");
                headers.put("APP-Secret", "APP-Secret111");
        
                String url = "http://192.168.10.168:8080/FileUpload/FileUploadServlet";
        
                OkHttpUtils.post()//
                        .addFile("mFile", "agguigu-afu.jpe", file)//
                        .url(url)//
                        .params(params)//
                        .headers(headers)//
                        .build()//
                        .execute(new MyStringCallback());
            }
        


    #okhttp的使用-多个文件的上传


             /**
             * 多文件同时上传
             * @param view
             */
            public void multiFileUpload(View view)
            {
                File file = new File(Environment.getExternalStorageDirectory(), "1.jpg");
                File file2 = new File(Environment.getExternalStorageDirectory(), "2.txt");
                if (!file.exists()||!file2.exists())
                {
                    Toast.makeText(MainActivity.this, "文件不存在,请修改文件路径", Toast.LENGTH_SHORT).show();
                    return;
                }
                Map<String, String> params = new HashMap<>();
        //        params.put("username", "杨光福");
        //        params.put("password", "123");
        
                String url = "http://192.168.10.168:8080/FileUpload/FileUploadServlet";
                OkHttpUtils.post()//
                        .addFile("mFile", "01.jpg", file)//
                        .addFile("mFile", "afua.txt", file2)//
                        .url(url)
                        .params(params)//
                        .build()//
                        .execute(new MyStringCallback());
            }


    #okhttp的使用-请求网络图片

            /**
                 * 请求网络到图片
                 * @param view
                 */
                public void getImage(View view)
                {
                    mTv.setText("");
                    String url = "http://images.csdn.net/20150817/1.jpg";
                    OkHttpUtils
                            .get()//
                            .url(url)//
                            .tag(this)//
                            .build()//
                            .connTimeOut(5000)
                            .readTimeOut(5000)
                            .writeTimeOut(5000)
                            .execute(new BitmapCallback() {
                                @Override
                                public void onError(Request request, Exception e) {
                                    mTv.setText("onError:" + e.getMessage());
                                }
            
                                @Override
                                public void onResponse(Bitmap bitmap) {
                                    //设置图片
                                    mImageView.setImageBitmap(bitmap);
                                }
                            });
                }
       okhttpjar包下载地址:    
            

        


    #Android-Universal-Image-Loader在ListView中使用

    在使用Image-Loader之前需要在Application里面做初始化


    public static void initImageLoader(Context context) {
            // This configuration tuning is custom. You can tune every option, you may tune some of them,
            // or you can create default configuration by
            //  ImageLoaderConfiguration.createDefault(this);
            // method.
            ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
                    //设置当前线程的优先级
                    .threadPriority(Thread.NORM_PRIORITY - 2)
                    // 缓存显示不同大小的同一张图片
                    .denyCacheImageMultipleSizesInMemory()
                    //将保存的时候的URI名称用MD5 加密
                    .discCacheFileNameGenerator(new Md5FileNameGenerator())
                    .tasksProcessingOrder(QueueProcessingType.LIFO)
                    .writeDebugLogs() // Remove for release app
                    .build();
            // Initialize ImageLoader with configuration.
            ImageLoader.getInstance().init(config);
        }



    1.在适配器中配置信息

     protected ImageLoader imageLoader = ImageLoader.getInstance();

     DisplayImageOptions options = new DisplayImageOptions.Builder()
                    .showImageOnLoading(R.drawable.ic_stub)
                    .showImageForEmptyUri(R.drawable.ic_empty)
                    .showImageOnFail(R.drawable.ic_error)
                    .cacheInMemory(true)////设置下载的图片是否缓存在内存中
                    .cacheOnDisc(true)////设置下载的图片是否缓存在SD卡中
                    .considerExifParams(true)//是否考虑JPEG图像EXIF参数(旋转,翻转)
                    .displayer(new RoundedBitmapDisplayer(20))//设置图片圆角
                    .build();


    2.在适配器中的getView中请求图片如下代码:


      @Override
            public View getView(final int position, View convertView, ViewGroup parent) {
               ......

                //第一个参数是:图片的地址,第二个参数是要绑定的图片,第三个参数处理图片的配置,第四个参数
                imageLoader.displayImage(imageUrls[position], holder.image, options, animateFirstListener);

                return view;
            }
        }


    3.设置监听animateFirstListener代码如下

         class ItemAdapter extends BaseAdapter {

            private ImageLoadingListener animateFirstListener = new AnimateFirstDisplayListener();

            ..............

      }


        private static class AnimateFirstDisplayListener extends SimpleImageLoadingListener {

            static final List<String> displayedImages = Collections.synchronizedList(new LinkedList<String>());

            @Override
            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                if (loadedImage != null) {
                    ImageView imageView = (ImageView) view;
                    boolean firstDisplay = !displayedImages.contains(imageUri);
                    if (firstDisplay) {
                        FadeInBitmapDisplayer.animate(imageView, 500);//显示图片的过程有一个渐变动画
                        displayedImages.add(imageUri);
                    }
                }
            }
        }



    #Android-Universal-Image-Loader在 GridView中使用

    1.设置配置信息

       protected ImageLoader imageLoader = ImageLoader.getInstance();

        DisplayImageOptions options = new DisplayImageOptions.Builder()
                    .showImageOnLoading(R.drawable.ic_stub)
                    .showImageForEmptyUri(R.drawable.ic_empty)
                    .showImageOnFail(R.drawable.ic_error)
                    .cacheInMemory(true)
                    .cacheOnDisc(true)
                    .considerExifParams(true)
                    .bitmapConfig(Bitmap.Config.RGB_565)
                    .build();

    2.在适配器的getView中请求网络图片,请求图片的时候,带有加载进度,代码如下,


      @Override
            public View getView(int position, View convertView, ViewGroup parent) {
                final ViewHolder holder;
                View view = convertView;
                if (view == null) {
                    view = getLayoutInflater().inflate(R.layout.item_grid_image, parent, false);
                    holder = new ViewHolder();
                    assert view != null;
                    holder.imageView = (ImageView) view.findViewById(R.id.image);
                    holder.progressBar = (ProgressBar) view.findViewById(R.id.progress);
                    view.setTag(holder);
                } else {
                    holder = (ViewHolder) view.getTag();
                }

                imageLoader.displayImage(imageUrls[position], holder.imageView, options, new SimpleImageLoadingListener() {
                                             @Override
                                             public void onLoadingStarted(String imageUri, View view) {
                                                 holder.progressBar.setProgress(0);
                                                 holder.progressBar.setVisibility(View.VISIBLE);
                                             }

                                             @Override
                                             public void onLoadingFailed(String imageUri, View view,
                                                     FailReason failReason) {
                                                 holder.progressBar.setVisibility(View.GONE);
                                             }

                                             @Override
                                             public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                                                 holder.progressBar.setVisibility(View.GONE);
                }
                                         }, new ImageLoadingProgressListener() {
                                             @Override
                                             public void onProgressUpdate(String imageUri, View view, int current,
                                                     int total) {
                                                 holder.progressBar.setProgress(Math.round(100.0f * current / total));
                                             }
                                         }
                );

                return view;
            }



    image_loaderjar包下载地址:http://download.csdn.net/detail/sinat_32804317/9552591
        
        
        


    #Picasso 的加载图片库的使用

    1.把jar拷贝到项目下lib里

     下载jar包地址
    http://square.github.io/picasso/#download

    2.单独请求某一张图片的用法
     Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);

    3.在ListView中适配器的getView中用法
     
      @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            final ViewHolder viewHolder;
            if (convertView == null) {
                convertView = View.inflate(context, R.layout.image_items, null);
                viewHolder = new ViewHolder();
                viewHolder.imageview = (ImageView) convertView.findViewById(R.id.imageview);
                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }
            viewHolder.imageview.setImageResource(R.drawable.empty_photo);
            //得到数据
            String imageurl = imageThumbUrls[position];
    //       
            Picasso.with(context).load(imageurl).into(viewHolder.imageview);

            return convertView;

        }


    #Glide 的加载图片库的使用

    1.需要在联网的情况下,在build.gradle文件中配置

          compile 'com.github.bumptech.glide:glide:3.7.0'
          compile 'com.android.support:support-v4:22.2.1'

    2.请求单张图片代码如下:

     Glide.with(context)
        .load("http://inthecheesefactory.com/uploads/source/glidepicasso/cover.jpg")
        .into(ivImg);
     
    3.在使用Lisview的适配器中,getView里使用,代码如下:

      @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            final ViewHolder viewHolder;
            if (convertView == null) {
                convertView = View.inflate(context, R.layout.image_items, null);
                viewHolder = new ViewHolder();
                viewHolder.imageview = (ImageView) convertView.findViewById(R.id.imageview);
                convertView.setTag(viewHolder);
            } else {
                viewHolder = (ViewHolder) convertView.getTag();
            }
            viewHolder.imageview.setImageResource(R.drawable.empty_photo);
            //得到数据
            String imageurl = imageThumbUrls[position];
     
            Glide
                    .with(context)
                    .load(imageurl)
                    .centerCrop()
                    .placeholder(R.drawable.empty_photo)
                    .crossFade()
                    .into(viewHolder.imageview);


            return convertView;

        }



    #Android-gif-drawable的使用

    1.联网框架和 添加Android-gif-drawable 的jar包
      compile files('libs/android-async-http-1.4.5.jar')
      compile files('libs/classes.jar')


    2.加载单张gif动画图片

      asyncHttpClient = new AsyncHttpClient();
            asyncHttpClient
                    .get("http://cdn.duitang.com/uploads/item/201311/20/20131120213622_mJCUy.thumb.600_0.gif",
                            new AsyncHttpResponseHandler() {

                                @Override
                                public void onSuccess(int arg0, Header[] arg1,
                                                      byte[] arg2) {
                                    // TODO Auto-generated method stub

                                    GifDrawable drawable = null;
                                    try {
                                        drawable = new GifDrawable(arg2);
                                    } catch (IOException e) {
                                        // TODO Auto-generated catch block
                                        e.printStackTrace();
                                    }
                                    network_gifimageview
                                            .setBackground(drawable);

                                    dialog.dismiss();

                                }

                                @Override
                                public void onFailure(int arg0, Header[] arg1,
                                                      byte[] arg2, Throwable arg3) {
                                    // TODO Auto-generated method stub
                                    Toast.makeText(getApplicationContext(),
                                            "加载网络图片出错", Toast.LENGTH_SHORT).show();
                                    dialog.dismiss();

                                }
                            });




    3.用Android-gif-drawabl在ListView 中加载gif动画

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            final GifImageView imageView;
            if (convertView == null) {
                imageView = new GifImageView(context);
                imageView.setScaleType(ImageView.ScaleType.FIT_XY);
                imageView.setPadding(10, 10, 10, 10);
                int size = AbsListView.LayoutParams.WRAP_CONTENT;
                AbsListView.LayoutParams layoutParams = new GridView.LayoutParams(size, size);
                imageView.setLayoutParams(layoutParams);
            } else {
                imageView = (GifImageView) convertView;
            }


            asyncHttpClient
                    .get(imageUrls.get(position),
                            new AsyncHttpResponseHandler() {
                                @Override
                                public void onSuccess(int i, Header[] headers, byte[] bytes) {


                                    try {

                                        GifDrawable drawable = new GifDrawable(bytes);
                                            imageView
                                                    .setBackground(drawable);
                                        } catch (IOException e) {
                                            e.printStackTrace();
                                        }


                                }


                                @Override
                                public void onFailure(int i, Header[] headers, byte[] bytes, Throwable throwable) {
                                    System.out.println(throwable.getMessage());
                                }
                            });

            return imageView;
        }




    #PhotoView的使用-单张图片
    作用,加载图片的时候,可以缩放图片

    1.关联photoView的库

        compile 'com.nostra13.universalimageloader:universal-image-loader:1.9.3'
        compile project(':PhotoView_library')

    2.在布局中定义PhotoView

       <uk.co.senab.photoview.PhotoView
                android:id="@+id/iv_photo"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent" />



    3.实例化控件并且设置相关的监听

           ImageView mImageView = (ImageView) findViewById(R.id.iv_photo);
            mCurrMatrixTv = (TextView) findViewById(R.id.tv_current_matrix);

            Drawable bitmap = getResources().getDrawable(R.drawable.wallpaper);
            mImageView.setImageDrawable(bitmap);

            // The MAGIC happens here!
            mAttacher = new PhotoViewAttacher(mImageView);

            // Lets attach some listeners, not required though!
            mAttacher.setOnMatrixChangeListener(new MatrixChangeListener());
            mAttacher.setOnPhotoTapListener(new PhotoTapListener());



       private class MatrixChangeListener implements OnMatrixChangedListener {

            @Override
            public void onMatrixChanged(RectF rect) {
                mCurrMatrixTv.setText(rect.toString());
            }
        }


      private class PhotoTapListener implements OnPhotoTapListener {

            @Override
            public void onPhotoTap(View view, float x, float y) {
                float xPercentage = x * 100f;
                float yPercentage = y * 100f;

                showToast(String.format(PHOTO_TAP_TOAST_STRING, xPercentage, yPercentage, view == null ? 0 : view.getId()));
            }
        }


    #PhotoView的使用-ViewPager中使用
    应用场景:类似于空间图片浏览效果

    1.在布局文件中定义HackyViewPager类,它继承ViewPager的

    <uk.co.senab.photoview.sample.HackyViewPager xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/view_pager"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />


    2.设置适配器
     mViewPager.setAdapter(new SamplePagerAdapter());


    3.适配器具体代码如下:

        static class SamplePagerAdapter extends PagerAdapter {

            private static final int[] sDrawables = { R.drawable.wallpaper, R.drawable.wallpaper, R.drawable.wallpaper,
                    R.drawable.wallpaper, R.drawable.wallpaper, R.drawable.wallpaper };

            @Override
            public int getCount() {
                return sDrawables.length;
            }

            @Override
            public View instantiateItem(ViewGroup container, int position) {
                PhotoView photoView = new PhotoView(container.getContext());
                photoView.setImageResource(sDrawables[position]);

                // Now just add PhotoView to ViewPager and return it
                container.addView(photoView, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);

                return photoView;
            }

            @Override
            public void destroyItem(ViewGroup container, int position, Object object) {
                container.removeView((View) object);
            }

            @Override
            public boolean isViewFromObject(View view, Object object) {
                return view == object;
            }

        }

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  • 原文地址:https://www.cnblogs.com/wangying222/p/5591258.html
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