我目前使用的改造由广场为Android网络通信。有没有一种方法任务，以创建进度的通知中得到了进步，上传图片时，它的Facebook使用类似的东西？
使用情况是有希望的完整图像质量的图像加载没有COM pression或缩放。
我看它是如何可能与AsyncTask的，但是这不符合使用改造的目的。然而，可能是该路由我将不得不考虑。
解决方案我有同样的问题，终于成功地做到这一点
ProgressListener
公共接口ProgressListener {
虚空转移（长NUM）;
}
CountingTypedFile
公共类CountingTypedFile扩展TypedFile {
私有静态最终诠释BUFFER_SIZE = 4096;
私人最终ProgressListener监听;
公共CountingTypedFile（字符串MIMETYPE，文件档案，ProgressListener监听器）{
超（MIMETYPE，文件）;
this.listener =侦听器;
}
@覆盖公共无效的writeTo（OutputStream中出）抛出IOException异常{
byte []的缓冲区=新的字节[BUFFER_SIZE];
在的FileInputStream =新的FileInputStream（super.file（））;
总长= 0;
尝试 {
INT读取;
而（（读= in.read（缓冲））！= -1）{
共有+ =读取;
this.listener.transferred（总）;
out.write（缓冲，0，读）;
}
} 最后 {
附寄（）;
}
}
}
MyApiService
公共接口MyApiService {
@Multipart
@POST（/文件）
ApiResult uploadFile（@Part（文件）TypedFile资源，@Query（路径）字符串路径）;
}
SendFileTask
私有类SendFileTask扩展的AsyncTask＆LT;字符串，整数，ApiResult＆GT; {
私人ProgressListener监听;
私人字符串文件路径;
私人文件类型的fileType;
公共SendFileTask（字符串文件路径，文件类型的fileType）{
this.filePath =文件路径;
this.fileType =的fileType;
}
@覆盖
保护ApiResult doInBackground（字符串... PARAMS）{
档案文件=新的文件（文件路径）;
totalSize = file.length（）;
Logger.d（上传文件大小[％D]，totalSize）;
监听=新ProgressListener（）{
@覆盖
公共无效转移（长NUM）{
publishProgress（（INT）（（NUM /（浮点）totalSize）* 100））;
}
};
字符串_fileType = FileType.VIDEO.equals（的fileType）？ 视频/ MP4：（FileType.IMAGE.equals（的fileType）为image / jpeg：* / *）;
返回MyRestAdapter.getService（）uploadFile（新CountingTypedFile（_fileType，文件，侦听器），/手机上传）。
}
@覆盖
保护无效onProgressUpdate（整数...值）{
Logger.d（的String.Format（进步[％D]，值[0]））;
//做些什么值[0]，它的比例，所以你可以很容易做到
//progressBar.setProgress(values[0]）;
}
}
在 CountingTypedFile 是只是一个副本的 TypedFile 但包括ProgressListener。
I'm currently using Retrofit by Square for Android network communications. Is there a way to get its progress during a task to create a progress notification, something similar to that which Facebook uses when uploading an image?
Use Case would be to load an image hopefully of full image quality without compression or scaling.
I see how it is possible with an asynctask but that would defeat the purpose of using Retrofit. However that might be the route I would have to take.
I had the same problem and finally managed to do it. I was using spring lib before and what I show below kind worked for Spring but was inconsistent since I made a mistake on using it for the InputStream. I moved all my API's to use retrofit and upload was the last one on the list, I just override TypedFile writeTo() to update me on the bytes read to the OutputStream. Maybe this can be improved but as I said I made it when I was using Spring so I just reused it.This is the code for upload and it's working for me on my app, if you want download feedback then you can use @Streaming and read the inputStream.
ProgressListener
public interface ProgressListener {
void transferred(long num);
}
CountingTypedFile
public class CountingTypedFile extends TypedFile {
private static final int BUFFER_SIZE = 4096;
private final ProgressListener listener;
public CountingTypedFile(String mimeType, File file, ProgressListener listener) {
super(mimeType, file);
this.listener = listener;
}
@Override public void writeTo(OutputStream out) throws IOException {
byte[] buffer = new byte[BUFFER_SIZE];
FileInputStream in = new FileInputStream(super.file());
long total = 0;
try {
int read;
while ((read = in.read(buffer)) != -1) {
total += read;
this.listener.transferred(total);
out.write(buffer, 0, read);
}
} finally {
in.close();
}
}
}
MyApiService
public interface MyApiService {
@Multipart
@POST("/files")
ApiResult uploadFile(@Part("file") TypedFile resource, @Query("path") String path);
}
SendFileTask
private class SendFileTask extends AsyncTask<String, Integer, ApiResult> {
private ProgressListener listener;
private String filePath;
private FileType fileType;
public SendFileTask(String filePath, FileType fileType) {
this.filePath = filePath;
this.fileType = fileType;
}
@Override
protected ApiResult doInBackground(String... params) {
File file = new File(filePath);
totalSize = file.length();
Logger.d("Upload FileSize[%d]", totalSize);
listener = new ProgressListener() {
@Override
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
}
};
String _fileType = FileType.VIDEO.equals(fileType) ? "video/mp4" : (FileType.IMAGE.equals(fileType) ? "image/jpeg" : "*/*");
return MyRestAdapter.getService().uploadFile(new CountingTypedFile(_fileType, file, listener), "/Mobile Uploads");
}
@Override
protected void onProgressUpdate(Integer... values) {
Logger.d(String.format("progress[%d]", values[0]));
//do something with values[0], its the percentage so you can easily do
//progressBar.setProgress(values[0]);
}
}
The CountingTypedFile is just a copy of TypedFile but including the ProgressListener.
这篇关于Android的改造 - onProgressUpdate用于显示进度通知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！