Unable to create call adapter for io.reactivex.rxjava3.core.Observable

最新推荐文章于 2025-02-16 19:35:51 发布

胡易卿

最新推荐文章于 2025-02-16 19:35:51 发布

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本文介绍了一个在集成Retrofit2和RxJava3过程中出现的错误及其解决办法。错误主要源于未能为Observable创建适配器。解决步骤包括正确配置依赖项并设置Retrofit实例。

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在集成Retrofit2+RxJava3时，会出现这个错误

    java.lang.IllegalArgumentException: Unable to create call adapter for io.reactivex.rxjava3.core.Observable<com.kotlin.base.data.protocol.BaseResp<java.lang.String>>
        for method UserApi.register
        at retrofit2.Utils.methodError(Utils.java:54)
        at retrofit2.HttpServiceMethod.createCallAdapter(HttpServiceMethod.java:116)
        at retrofit2.HttpServiceMethod.parseAnnotations(HttpServiceMethod.java:67)
        at retrofit2.ServiceMethod.parseAnnotations(ServiceMethod.java:39)
        at retrofit2.Retrofit.loadServiceMethod(Retrofit.java:202)
        at retrofit2.Retrofit$1.invoke(Retrofit.java:160)
        at java.lang.reflect.Proxy.invoke(Proxy.java:1006)
        at $Proxy1.register(Unknown Source)
        at com.kotlin.user.data.repository.UserRepository.register(UserRepository.kt:12)
        at com.kotlin.user.service.impl.UserServiceImpl.register(UserServiceImpl.kt:15)
        at com.kotlin.user.presenter.view.RegisterPresenter.onRegisterResult(RegisterPresenter.kt:14)
        at com.kotlin.user.ui.activity.RegisterActivity$onCreate$1.onClick(RegisterActivity.kt:21)
        at android.view.View.performClick(View.java:7448)
        at android.view.View.performClickInternal(View.java:7425)
        at android.view.View.access$3600(View.java:810)
        at android.view.View$PerformClick.run(View.java:28305)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
     Caused by: java.lang.IllegalArgumentException: Could not locate call adapter for io.reactivex.rxjava3.core.Observable<com.kotlin.base.data.protocol.BaseResp<java.lang.String>>.
      Tried:
       * retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory
       * retrofit2.CompletableFutureCallAdapterFactory
       * retrofit2.DefaultCallAdapterFactory
        at retrofit2.Retrofit.nextCallAdapter(Retrofit.java:272)
        at retrofit2.Retrofit.callAdapter(Retrofit.java:237)
        at retrofit2.HttpServiceMethod.createCallAdapter(HttpServiceMethod.java:114)
        	... 21 more
Disconnected from the target VM, address: 'localhost:8601', transport: 'socket'

解决方法：

1.引用

 implementation "com.squareup.retrofit2:adapter-rxjava3:2.9.0"

2.修改工程方法

        retrofit = Retrofit.Builder().baseUrl(BaseConstant.SERVER_ADDRESS)
            .addConverterFactory(GsonConverterFactory.create())
            .addCallAdapterFactory(RxJava3CallAdapterFactory.create()).build()