封装retrofit网络请求工具类

最新推荐文章于 2019-05-14 09:17:13 发布

原创最新推荐文章于 2019-05-14 09:17:13 发布 · 424 阅读

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本文详细介绍了一种基于Retrofit的网络请求封装方法，通过创建RetrofitManager类，实现了网络请求的统一管理和调用。该类使用OkHttp作为底层网络通信库，并集成了RxJava2和Gson库，支持响应式编程和JSON数据解析。此外，还提供了检查网络连接状态的功能，增强了网络请求的稳定性和用户体验。

/**
 * 封装retrofit网络请求工具类
 */
class RetrofitManager private constructor(url: String) {
    private val retrofit: Retrofit = Retrofit.Builder()
            .baseUrl(url)
            .client(okHttpClient)
            .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
            .addConverterFactory(GsonConverterFactory.create(GsonBuilder().serializeNulls().create()))
            .build()

    private val apiService: ApiService by lazy { retrofit.create(ApiService::class.java) }

    companion object {
        private var INSTANCE: RetrofitManager? = null

        fun getInstance(url: String): RetrofitManager = INSTANCE ?: synchronized(this) {
            INSTANCE ?: RetrofitManager(url)
        }

        private val okHttpClient: OkHttpClient = OkHttpClient.Builder()
                .addInterceptor(HttpLoggingInterceptor { msg -> msg.logi() }.setLevel(HttpLoggingInterceptor.Level.BODY))
                .connectTimeout(TIME_OUT, TimeUnit.SECONDS)
                .readTimeout(TIME_OUT, TimeUnit.SECONDS)
                .writeTimeout(TIME_OUT, TimeUnit.SECONDS)
                .build()
    }

    fun createApiService(isCheckConn: Boolean): ApiService? {
        return if (isCheckConn) {
            if (isConnected()) {
                apiService
            } else {
                toastShort(R.string.error_network)
                null
            }
        } else {
            apiService
        }
    }
}