700字范文 > Android实战之上传头像和仿QQ空间微博发表文字和图片

Android实战之上传头像和仿QQ空间微博发表文字和图片

时间：2020-06-30 23:54:55

转载请标明源地址：/gaolei1201/article/details/50392478

以前项目中做过上传头像和仿QQ空间、微博发表文字和图片，也是花费了好多精力和时间多。现在花了几天时间做了整理与大家分享一下。下面把几个重要点列一下：

1.下面会把Demo源码奉献给大家，用的是以前公司的接口，首先需要登录才能更新头像和发表图文

2.我在项目中用的是OKHttp框架来实现Http网络请求，它的优点：非常高效，支持SPDY、连接池、GZIP和 HTTP 缓存。默认情况下，OKHttp会自动处理常见的网络问题，像二次连接、SSL的握手问题。如果你的应用程序中集成了OKHttp，Retrofit默认会使用OKHttp处理其他网络层请求。OkHttp是一个相对成熟的解决方案，据说Android4.4的源码中可以看到HttpURLConnection已经替换成OkHttp实现了。所以我们更有理由相信OkHttp的强大。详情可参考：Android OkHttp完全解析。

3.展现图片用的是UniversalImageLoader

4.展示本地图片时一定要压缩，不然图片大的话一个几M，容易出现OOM

5.上传图片时也要压缩，不然图片大的话耗费时间太长，以及别人浏览图片时太耗流量

6.在获取上传图片时，刚开始是肯定获取不到的，因为一张图片上传需要几秒钟，为了较好的用户体验可以先展示本地图片，上传成功后下次再展示网络图片；另一种方法就是把所有图片都上传完成，然后再获取发表的内容

如图：

下面是网络请求封装类，别的类用接口回调可以获取请求结果

public class NetRequest {private RequestIterface netRequestIterface;private Context context;public NetRequest(RequestIterface netRequestIterface, Context context) {RequestIterface = netRequestIterface;this.context = context;}/*** 网络请求用的是OKHttp，这个开源项目的好处是1.Android 6.0后不支持HttpClient请求，而它使用HttpUrlConnection 2.默认支持https*/public void httpRequest(Map<String, Object> map, final String requestUrl) {if (!CommonUtils.getUtilInstance().isConnectingToInternet(context)) {Toast.makeText(context,context.getString(R.string.internet_fail_connect),Toast.LENGTH_LONG).show();return;}OkHttpClient mOkHttpClient = new OkHttpClient();FormEncodingBuilder builder = new FormEncodingBuilder();if (null != map && !map.isEmpty())for (String key : map.keySet()) {builder.add(key, map.get(key)+"");}if(UserInfoUtil.getInstance().getAuthKey()!=null) {builder.add("authKey", UserInfoUtil.getInstance().getAuthKey());}Log.d("gaolei", " authKey------------------"+UserInfoUtil.getInstance().getAuthKey());Request request = new Request.Builder().url(requestUrl).post(builder.build()).build();try {mOkHttpClient.setConnectTimeout(5000, TimeUnit.MILLISECONDS);mOkHttpClient.newCall(request).enqueue(new Callback() {@Overridepublic void onFailure(Request request, IOException e) {netRequestIterface.exception(e, requestUrl);}@Overridepublic void onResponse(final Response response) throws IOException {String result = response.body().string();netRequestIterface.changeView(result, requestUrl);}});}catch (Exception e){}}}

下面是压缩图片

//注意显示本地图片时一定要压缩质量，不然容易出现OOMpublic Bitmap trasformToZoomPhotoAndLessMemory(String url) {File file = new File(url);Log.d("gaolei", "file.length()--------original-------------" + file.length());BitmapFactory.Options options = new BitmapFactory.Options();// 通过这个bitmap获取图片的宽和高options.inJustDecodeBounds = true;int inSampleSize = 1;if (file.length() < 256 * 1024) {options.inPreferredConfig = Bitmap.Config.ARGB_8888;} else if (file.length() < 512 * 1024) {options.inPreferredConfig = Bitmap.Config.RGB_565;options.inSampleSize = 2;inSampleSize = 2;} else if (file.length() < 1024 * 1024) {options.inPreferredConfig = Bitmap.Config.RGB_565;options.inSampleSize = 4;inSampleSize = 4;} else {options.inPreferredConfig = Bitmap.Config.RGB_565;options.inSampleSize = 6;inSampleSize = 6;}options.inPurgeable = true;options.inInputShareable = true;// 注意这次要把options.inJustDecodeBounds 设为 false,这次图片是要读取出来的options.inJustDecodeBounds = false;Log.d("gaolei", "inSampleSize-----------------" + inSampleSize);int degree = readPictureDegree(file.getAbsolutePath());// Log.d("gaolei", "degree------------uploadImg--------------" +// degree);InputStream is = null;try {is = new FileInputStream(url);} catch (FileNotFoundException e) {// TODO Auto-generated catch blocke.printStackTrace();}Bitmap cameraBitmap = BitmapFactory.decodeStream(is, null, options);// Bitmap cameraBitmap = BitmapFactory.decodeFile(url, options);Bitmap photo = rotaingImageView(degree, cameraBitmap);if (is != null) {try {is.close();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}}return photo;}

下面是把图片byte转化为字符串上传到服务器

//请注意：上传图片时我是把图片byte转化为字符串上传到服务器，当然还可以用1.stream上传到服务器 2.Socket上传到服务器，不过我没试过public void uploadUserPhotoNew(final String filePath) {uploading_photo_progress.setVisibility(View.VISIBLE);//为什么另开一个线程呢?因为要把图片字节流转化为字符串上传，比较耗时，阻塞UI线程，会使应用卡卡卡，所以要另开一线程new Thread() {public void run() {String fileType = UploadPhotoUtil.getInstance().getFileType(filePath);String fileString = UploadPhotoUtil.getInstance().getUploadPhotoZoomString(filePath);Map<String, Object> map = new HashMap<String, Object>();map.put("imgType", fileType);map.put("imgBody", fileString);Message msg = handler.obtainMessage();msg.obj = map;msg.what = SAVE_PHOTO_IMAGE;handler.sendMessage(msg);}}.start();}

下面是展示发表图文ListView的Adapter，这里比较重要，因为图片上传需要一段时间，马上获取发表的图文时，肯定显示不出来图片，现在先显示本地的，等下次进入时显示网络的

public class ThemeListViewAdapter extends BaseAdapter {private LayoutInflater inflater;private List<ThemeObject> list;private Context context;private List<String> uploadImgUrlList;public ThemeListViewAdapter(List<ThemeObject> list,List<String> uploadImgUrlList, Context context) {inflater = LayoutInflater.from(context);this.list = list;this.uploadImgUrlList = uploadImgUrlList;this.context = context;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn list.size();}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn list.get(position);}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}public void changeList(List<ThemeObject> list) {this.list = list;}@Overridepublic View getView(final int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubViewHolder holder = null;if (convertView == null) {holder = new ViewHolder();convertView = inflater.inflate(R.layout.theme_listview_items, null);holder.user_photo = (ImageView) convertView.findViewById(R.id.user_photo);holder.theme_img1 = (ImageView) convertView.findViewById(R.id.theme_img1);holder.theme_img2 = (ImageView) convertView.findViewById(R.id.theme_img2);holder.theme_img3 = (ImageView) convertView.findViewById(R.id.theme_img3);holder.theme_title = (TextView) convertView.findViewById(R.id.theme_title);holder.theme_desc = (TextView) convertView.findViewById(R.id.theme_desc);holder.user_name = (TextView) convertView.findViewById(R.id.user_name);holder.publish_theme_time = (TextView) convertView.findViewById(R.id.publish_theme_time);holder.theme_reply_num = (TextView) convertView.findViewById(R.id.theme_reply_num);holder.theme_praise_num = (TextView) convertView.findViewById(R.id.theme_praise_num);holder.game_playing_prefix = (TextView) convertView.findViewById(R.id.game_playing_prefix);holder.game_playing = (TextView) convertView.findViewById(R.id.game_playing);convertView.setTag(holder);} else {holder = (ViewHolder) convertView.getTag();}holder.user_photo.setTag(position + "");holder.theme_img1.setTag(position + "");holder.theme_img2.setTag(position + "");holder.theme_img3.setTag(position + "");holder.game_playing_prefix.setTag(position + "");holder.game_playing.setTag(position + "");if (list.size() > 0) {final ThemeObject object = list.get(position);if (holder.user_photo.getTag().equals("" + position)) {if (object.getUserPhoto() != null) {new CommonUtils().displayCircleImage(object.getUserPhoto(),holder.user_photo, "photo");} else {holder.user_photo.setImageDrawable(context.getResources().getDrawable(R.drawable.personal_default_photo));}List<PictureList> themePictureList = object.getPictureList();int pictureListSize = themePictureList.size();List<String> pictureUrlList = new ArrayList<String>();for (int i = 0; i < themePictureList.size(); i++) {pictureUrlList.add(themePictureList.get(i).getUrl());}Log.d("gaolei", "themePictureList.size()------------" + position + "-------" + themePictureList.size());int uploadImgUrlListSize = uploadImgUrlList.size();Log.d("gaolei", "uploadImgUrlListSize------------" + position + "-------" + uploadImgUrlListSize);if (pictureListSize == 0) {holder.theme_img1.setVisibility(View.GONE);holder.theme_img2.setVisibility(View.GONE);holder.theme_img3.setVisibility(View.GONE);}if (pictureListSize == 1) {holder.theme_img1.setVisibility(View.VISIBLE);if (holder.theme_img1.getTag().equals("" + position)) {CommonUtils.getUtilInstance().displayLowQualityInImage(pictureUrlList.get(0),holder.theme_img1);}}if (pictureListSize == 2) {holder.theme_img1.setVisibility(View.VISIBLE);holder.theme_img2.setVisibility(View.VISIBLE);if (holder.theme_img1.getTag().equals("" + position)) {CommonUtils.getUtilInstance().displayLowQualityInImage(pictureUrlList.get(0),holder.theme_img1);}if (holder.theme_img2.getTag().equals("" + position)) {CommonUtils.getUtilInstance().displayLowQualityInImage(pictureUrlList.get(1),holder.theme_img2);}}if (pictureListSize == 3) {holder.theme_img1.setVisibility(View.VISIBLE);holder.theme_img2.setVisibility(View.VISIBLE);holder.theme_img3.setVisibility(View.VISIBLE);if (holder.theme_img1.getTag().equals("" + position)) {CommonUtils.getUtilInstance().displayLowQualityInImage(pictureUrlList.get(0),holder.theme_img1);}if (holder.theme_img2.getTag().equals("" + position)) {CommonUtils.getUtilInstance().displayLowQualityInImage(pictureUrlList.get(1),holder.theme_img2);}if (holder.theme_img3.getTag().equals("" + position)) {CommonUtils.getUtilInstance().displayLowQualityInImage(pictureUrlList.get(2),holder.theme_img3);}}//这里比较重要，因为图片上传需要一段时间，马上获取发表的图文时，肯定显示不出来图片，现在先显示本地的，等下次进入时显示网络的if (position == 0) {if (uploadImgUrlListSize == 1) {holder.theme_img1.setVisibility(View.VISIBLE);if (holder.theme_img1.getTag().equals("" + position)) {Bitmap bitmap = UploadPhotoUtil.getInstance().trasformToZoomBitmapAndLessMemory(uploadImgUrlList.get(0));holder.theme_img1.setImageDrawable(new BitmapDrawable(context.getResources(), bitmap));}}if (uploadImgUrlListSize == 2) {holder.theme_img1.setVisibility(View.VISIBLE);holder.theme_img2.setVisibility(View.VISIBLE);if (holder.theme_img1.getTag().equals("" + position)) {Bitmap bitmap = UploadPhotoUtil.getInstance().trasformToZoomBitmapAndLessMemory(uploadImgUrlList.get(0));holder.theme_img1.setImageDrawable(new BitmapDrawable(context.getResources(), bitmap));}if (holder.theme_img2.getTag().equals("" + position)) {Bitmap bitmap = UploadPhotoUtil.getInstance().trasformToZoomBitmapAndLessMemory(uploadImgUrlList.get(1));holder.theme_img2.setImageDrawable(new BitmapDrawable(context.getResources(), bitmap));}}if (uploadImgUrlListSize == 3) {holder.theme_img1.setVisibility(View.VISIBLE);holder.theme_img2.setVisibility(View.VISIBLE);holder.theme_img3.setVisibility(View.VISIBLE);if (holder.theme_img1.getTag().equals("" + position)) {Bitmap bitmap = UploadPhotoUtil.getInstance().trasformToZoomBitmapAndLessMemory(uploadImgUrlList.get(0));holder.theme_img1.setImageDrawable(new BitmapDrawable(context.getResources(), bitmap));}if (holder.theme_img2.getTag().equals("" + position)) {Bitmap bitmap = UploadPhotoUtil.getInstance().trasformToZoomBitmapAndLessMemory(uploadImgUrlList.get(1));holder.theme_img2.setImageDrawable(new BitmapDrawable(context.getResources(), bitmap));}if (holder.theme_img3.getTag().equals("" + position)) {Bitmap bitmap = UploadPhotoUtil.getInstance().trasformToZoomBitmapAndLessMemory(uploadImgUrlList.get(2));holder.theme_img3.setImageDrawable(new BitmapDrawable(context.getResources(), bitmap));}}}holder.user_name.setText(object.getUserName());holder.theme_title.setText(object.getThemeTitle());holder.theme_desc.setText(object.getThemeDescr());holder.theme_reply_num.setText(object.getReplyNum() + "");holder.publish_theme_time.setText(CommonUtils.getUtilInstance().transformMillisToDate(object.getCreateTime()));holder.theme_praise_num.setText(object.getPraiseNum() + "");}holder.user_photo.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub}});}return convertView;}class ViewHolder {ImageView user_photo, theme_img1, theme_img2, theme_img3;TextView user_name, theme_title, theme_desc, publish_theme_time,theme_reply_num, theme_praise_num, game_playing,game_playing_prefix;}}

另外的开源项目地址：/code/0810/10044/100222.html，/download/reality_jie/6807867，一个开源项目源码有上传头像功能/detail/gaolei1201/9414286效果如下图：

源码下载地址，欢迎光临......

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