兼容 MultipartBody.Builder 在 build 时参数为空会报错的情况

Author: getActivity

EasyHttp.apk

@@ -28,11 +28,12 @@
 
 ```groovy
 buildscript {
-    ......
+    repositories {
+        maven { url 'https://jitpack.io' }
+    }
 }
 allprojects {
     repositories {
-        // JitPack 远程仓库：https://jitpack.io
         maven { url 'https://jitpack.io' }
     }
 }
@@ -51,7 +52,7 @@ android {
 
 dependencies {
     // 网络请求框架：https://github.com/getActivity/EasyHttp
-    implementation 'com.github.getActivity:EasyHttp:9.5'
+    implementation 'com.github.getActivity:EasyHttp:9.6'
     // OkHttp 框架：https://github.com/square/okhttp
     // noinspection GradleDependency
     implementation 'com.squareup.okhttp3:okhttp:3.12.13'
@@ -64,7 +65,7 @@ dependencies {
 
 |  功能或细节  | [EasyHttp](https://github.com/getActivity/EasyHttp) | [Retrofit](https://github.com/square/retrofit)  | [OkGo](https://github.com/jeasonlzy/okhttp-OkGo) |
 | :----: | :------: |  :-----: |  :-----: |
-|    对应版本  |  9.5 |  2.9.0  |  3.0.4    |
+|    对应版本  |  9.6 |  2.9.0  |  3.0.4    |
 |    **aar 包大小**  |  [70 KB](https://jitpack.io/#getActivity/EasyHttp)  | [123 KB](https://bintray.com/bintray/jcenter/com.squareup.retrofit2%3Aretrofit#files)  |  [131 KB](https://bintray.com/jeasonlzy/maven/okgo#files/com/lzy/net/okgo)  |
 |    minSdk 要求  |  API 14+ |  API 21+  |  API 14+   |
 |    配置多域名  |  ✅  |  ❌  |   ✅   |

README.md

@@ -11,8 +11,8 @@ android {
         applicationId 'com.hjq.easy.demo'
         minSdkVersion 16
         targetSdkVersion 30
-        versionCode 95
-        versionName '9.5'
+        versionCode 96
+        versionName '9.6'
     }
 
     // 支持 JDK 1.8
@@ -49,7 +49,7 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.2.0'
 
     // 吐司框架：https://github.com/getActivity/ToastUtils
-    implementation 'com.github.getActivity:ToastUtils:9.1'
+    implementation 'com.github.getActivity:ToastUtils:9.2'
 
     // 权限请求框架：https://github.com/getActivity/XXPermissions
     implementation 'com.github.getActivity:XXPermissions:10.8'

app/build.gradle

@@ -5,8 +5,8 @@ android {
 
     defaultConfig {
         minSdkVersion 14
-        versionCode 95
-        versionName "9.5"
+        versionCode 96
+        versionName "9.6"
     }
 
     // 使用 JDK 1.8

library/build.gradle

@@ -164,6 +164,8 @@ public T request(OnHttpListener<?> listener) {
      * 组装 RequestBody 对象
      */
     private RequestBody createBody(HttpParams params, BodyType type) {
+        RequestBody body;
+
         if (params.isMultipart() && !params.isEmpty()) {
             MultipartBody.Builder builder = new MultipartBody.Builder();
             builder.setType(MultipartBody.FORM);
@@ -219,29 +221,25 @@ private RequestBody createBody(HttpParams params, BodyType type) {
                 builder.addFormDataPart(key, String.valueOf(object));
             }
 
-            if (mUpdateListener != null) {
-                return new ProgressBody(builder.build(), getLifecycleOwner(), mUpdateListener);
+            try {
+                body = builder.build();
+            } catch (IllegalStateException ignored) {
+                // 如果参数为空则会抛出异常：Multipart body must have at least one part.
+                body = new FormBody.Builder().build();
             }
-            return builder.build();
-        }
-
-        if (type == BodyType.JSON) {
-            if (mUpdateListener != null) {
-                return new ProgressBody(new JsonBody(params.getParams()), getLifecycleOwner(), mUpdateListener);
-            }
-            return new JsonBody(params.getParams());
-        }
 
-        FormBody.Builder builder = new FormBody.Builder();
-        if (!params.isEmpty()) {
-            for (String key : params.getNames()) {
-                builder.add(key, String.valueOf(params.get(key)));
+        } else if (type == BodyType.JSON) {
+            body = new JsonBody(params.getParams());
+        } else {
+            FormBody.Builder builder = new FormBody.Builder();
+            if (!params.isEmpty()) {
+                for (String key : params.getNames()) {
+                    builder.add(key, String.valueOf(params.get(key)));
+                }
             }
-        }
-        if (mUpdateListener != null) {
-            return new ProgressBody(builder.build(), getLifecycleOwner(), mUpdateListener);
+            body = builder.build();
         }
 
-        return builder.build();
+        return mUpdateListener == null ? body : new ProgressBody(body, getLifecycleOwner(), mUpdateListener);
     }
 }