在實際運用中上傳是一個必不可少的功能,因此咱們在封裝二的基礎上加入上傳的功能,同時須要附帶上傳進度!html
注意:Multipart是指定大文件上傳過程當中的標示,通常上傳圖片的過程當中咱們須要附帶信息,因此咱們須要用到@part指定傳遞的數值,MultipartBody.Part是指定傳遞的文件;java
/*上傳文件*/
@Multipart
@POST("AppYuFaKu/uploadHeadImg")
Observable<BaseResultEntity<UploadResulte>> uploadImage(@Part("uid") RequestBody uid, @Part("auth_key") RequestBody auth_key, @Part MultipartBody.Part file);複製代碼
retrofit是基於okhttp的處理,因此咱們能夠自定義RequestBody,複寫writeTo(BufferedSink sink)方法,獲得傳遞的進度數據api
public class ProgressRequestBody extends RequestBody {
//實際的待包裝請求體
private final RequestBody requestBody;
//進度回調接口
private final UploadProgressListener progressListener;
//包裝完成的BufferedSink
private BufferedSink bufferedSink;
public ProgressRequestBody(RequestBody requestBody, UploadProgressListener progressListener) {
this.requestBody = requestBody;
this.progressListener = progressListener;
}
/** * 重寫調用實際的響應體的contentType * @return MediaType */
@Override
public MediaType contentType() {
return requestBody.contentType();
}
/** * 重寫調用實際的響應體的contentLength * @return contentLength * @throws IOException 異常 */
@Override
public long contentLength() throws IOException {
return requestBody.contentLength();
}
/** * 重寫進行寫入 * @param sink BufferedSink * @throws IOException 異常 */
@Override
public void writeTo(BufferedSink sink) throws IOException {
if (null == bufferedSink) {
bufferedSink = Okio.buffer(sink(sink));
}
requestBody.writeTo(bufferedSink);
//必須調用flush,不然最後一部分數據可能不會被寫入
bufferedSink.flush();
}
/** * 寫入,回調進度接口 * @param sink Sink * @return Sink */
private Sink sink(Sink sink) {
return new ForwardingSink(sink) {
//當前寫入字節數
long writtenBytesCount = 0L;
//總字節長度,避免屢次調用contentLength()方法
long totalBytesCount = 0L;
@Override
public void write(Buffer source, long byteCount) throws IOException {
super.write(source, byteCount);
//增長當前寫入的字節數
writtenBytesCount += byteCount;
//得到contentLength的值,後續再也不調用
if (totalBytesCount == 0) {
totalBytesCount = contentLength();
}
Observable.just(writtenBytesCount).observeOn(AndroidSchedulers.mainThread()).subscribe(new Action1<Long>() {
@Override
public void call(Long aLong) {
progressListener.onProgress(writtenBytesCount, totalBytesCount);
}
});
}
};
}
}複製代碼
public interface UploadProgressListener {
/** * 上傳進度 * @param currentBytesCount * @param totalBytesCount */
void onProgress(long currentBytesCount, long totalBytesCount);
}複製代碼
File file=new File("/storage/emulated/0/Download/11.jpg");
RequestBody requestBody=RequestBody.create(MediaType.parse("image/jpeg"),file);
MultipartBody.Part part= MultipartBody.Part.createFormData("file_name", file.getName(), new ProgressRequestBody(requestBody,
new UploadProgressListener() {
@Override
public void onProgress(long currentBytesCount, long totalBytesCount) {
tvMsg.setText("提示:上傳中");
progressBar.setMax((int) totalBytesCount);
progressBar.setProgress((int) currentBytesCount);
}
}));複製代碼
和封裝二中post請求的方式同樣,咱們須要繼承baseentity,複寫裏面的方法,而後設置須要傳遞的參數,由於是測試接口,因此個人參數直接寫死在entity裏面,part文件動態指定ide
/** * 上傳請求api * Created by WZG on 2016/10/20. */
public class UplaodApi extends BaseEntity {
/*須要上傳的文件*/
private MultipartBody.Part part;
public UplaodApi(HttpOnNextListener listener, RxAppCompatActivity rxAppCompatActivity) {
super(listener, rxAppCompatActivity);
setShowProgress(true);
}
public MultipartBody.Part getPart() {
return part;
}
public void setPart(MultipartBody.Part part) {
this.part = part;
}
@Override
public Observable getObservable(HttpService methods) {
RequestBody uid= RequestBody.create(MediaType.parse("text/plain"), "4811420");
RequestBody key = RequestBody.create(MediaType.parse("text/plain"), "21f8d9bcc50c6ac1ae1020ce12f5f5a7");
return methods.uploadImage(uid,key,getPart());
}
}複製代碼
請求和封裝二中的請求同樣,經過傳遞一個指定的HttpOnNextListener 對象來回調來監聽結果信息,一一對應post
private void uploadeDo(){
File file=new File("/storage/emulated/0/Download/11.jpg");
RequestBody requestBody=RequestBody.create(MediaType.parse("image/jpeg"),file);
MultipartBody.Part part= MultipartBody.Part.createFormData("file_name", file.getName(), new ProgressRequestBody(requestBody,
new UploadProgressListener() {
@Override
public void onProgress(long currentBytesCount, long totalBytesCount) {
tvMsg.setText("提示:上傳中");
progressBar.setMax((int) totalBytesCount);
progressBar.setProgress((int) currentBytesCount);
}
}));
UplaodApi uplaodApi = new UplaodApi(httpOnNextListener,this);
uplaodApi.setPart(part);
HttpManager manager = HttpManager.getInstance();
manager.doHttpDeal(uplaodApi);
}
/** * 上傳回調 */
HttpOnNextListener httpOnNextListener=new HttpOnNextListener<UploadResulte>() {
@Override
public void onNext(UploadResulte o) {
tvMsg.setText("成功");
Glide.with(MainActivity.this).load(o.getHeadImgUrl()).skipMemoryCache(true).into(img);
}
@Override
public void onError(Throwable e) {
super.onError(e);
tvMsg.setText("失敗:"+e.toString());
}
};複製代碼
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