打开相册上传图片

1、打开相册

@OnClick(R.id.But_losing)
public void click() {
Intent intent =new Intent();
        intent.setAction(Intent.ACTION_PICK);
        intent.setType("image/*");
        this.startActivityForResult(intent, 1);
}

2、接收

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
    if (requestCode ==1) {
Uri uri = data.getData();//图片url
        System.out.println("url:" + uri);
        ContentResolver resolver = getContentResolver();
        Cursor query = resolver.query(uri, null, null, null, null);
        boolean first = query.moveToFirst();
        if (first) {
try {
//获取图片地址
                int columnIndex = query.getColumnIndex("_data");
                String path = query.getString(columnIndex);
//调用方法  uploadImageByRetrofit( );
                uploadImageByRetrofit(path);
            }catch (UnsupportedEncodingException e) {
e.printStackTrace();
            }
}
}
}

3、上传图片 使用Retrofit上传图片

private void uploadImageByRetrofit(String path)throws UnsupportedEncodingException {
//通过OkHttpClient配置日志拦截器
OkHttpClient client =new OkHttpClient.Builder()
            .addInterceptor(new MLanjieqqied()) 
            .build();
创建 Retrofit对象
    Retrofit retrofit =new Retrofit.Builder()
.baseUrl("https://sm.ms/")
.client(client)
.addCallAdapterFactory(RxJava2CallAdapterFactory.createAsync())
.addConverterFactory(GsonConverterFactory.create())
.build();
  //文件类型  application/octet-stream
    MediaType fileType = MediaType.parse("application/octet-stream");
 //要上传的文件对象
      File file =new File(path);
 //获得接口对象
    Album album = retrofit.create(Album.class); 
//设置请求体
    RequestBody body = RequestBody.create(fileType, file);
    String fileName = URLEncoder.encode(file.getName(), "UTF-8");
//创建发送的文件请求体
    MultipartBody.Part filePart = MultipartBody.Part.createFormData("smfile", fileName, body);
//文本类型  text/plain
    MediaType formatType = MediaType.parse("text/plain");
    RequestBody format = RequestBody.create(formatType, "json");
//调用接口中方法
    Observable observable = album.uploadImage(filePart, format);
    observable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer() {
@Override
                public void onSubscribe(Disposable d) {
}
@Override
                public void onNext(Result result) {
System.out.println("onNext "+result.getData().getUrl());
                }
@Override
                public void onError(Throwable e) {
System.out.println(e.getMessage());
                }
@Override
                public void onComplete() {
}
});
}

4、接口

public interface Album {
StringBaseUrl="https://sm.ms/";
@Multipart
@POST("https://sm.ms/api/upload")
@Headers({"User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36"})
ObservableuploadImage(@Part MultipartBody.Part filePart, @Part("format") RequestBody format);
}