上传动态数与okHttp3

Question

文件如何管理文件的动态数量的上传与OkHttp V3，我已经与OkHttp的旧版本这是compile 'com.squareup.okhttp:okhttp:2.6.0'

有类形式和多一些变化实施身体现在被建模。他们用更强大的FormBody和FormBody.Builder组合替换了不透明的FormEncodingBuilder。同样，他们已将MultipartBuilder升级为MultipartBody，MultipartBody.Part和MultipartBody.Builder。

下面的代码是旧版本

final MediaType MEDIA_TYPE = MediaType.parse(AppConstant.arrImages.get(i).getMediaType()); 

//If you can have multiple file types, set it in ArrayList 

MultipartBuilder buildernew = new MultipartBuilder() 
     .type(MultipartBuilder.FORM) 
     .addFormDataPart("title", title); //Here you can add the fix number of data. 

for (int i = 0; i < AppConstants.arrImages.size(); i++) { //loop to add dynamic number of files. 
    File f = new File(FILE_PATH,TEMP_FILE_NAME + i + ".png"); 
    if (f.exists()) { 
     buildernew.addFormDataPart(TEMP_FILE_NAME + i, TEMP_FILE_NAME + i + FILE_EXTENSION, RequestBody.create(MEDIA_TYPE, f)); 
    } 
} 

RequestBody requestBody = buildernew.build(); 

//Build the object of MultipartBuilder and get object of RequestBody. 

但现在OkHttp文件上传<version>3.0.1</version>代码实现类似下面的代码（source）

RequestBody requestBody = new MultipartBody.Builder() 
     .setType(MultipartBody.FORM) 
     .addFormDataPart("title", "Square Logo") 
     .addFormDataPart("image", "logo-square.png", 
      RequestBody.create(MEDIA_TYPE_PNG, new File("website/static/logo-square.png"))) 
     .build(); 

我试着用同样的逻辑MultipartBody但没有找到任何有效的解决方案。 或者是否需要为不同的情况执行相同的if else（这是不可行的）

Answer 1

构建器仍然存在，可用于此目的。将其存储在本地，就像您之前所做的一样，并在循环中进行修改：

MultipartBody.Builder buildernew = new MultipartBody.Builder() 
     .setType(MultipartBody.FORM) 
     .addFormDataPart("title", title); //Here you can add the fix number of data. 

for (int i = 0; i < AppConstants.arrImages.size(); i++) { 
    File f = new File(FILE_PATH,TEMP_FILE_NAME + i + ".png"); 
    if (f.exists()) { 
     buildernew.addFormDataPart(TEMP_FILE_NAME + i, TEMP_FILE_NAME + i + FILE_EXTENSION, RequestBody.create(MEDIA_TYPE, f)); 
    } 
} 

MultipartBody requestBody = buildernew.build();