简要介绍
Retrofit是当前应用非常广泛的网络请求框架,通常结合RxJava来进行网络请求,本文将展示一个采用RxJava Retrofit的网络请求demo.
集成步骤
1、app工程的build.gradle中添加依赖
//retrofit2 implementation 'com.google.code.gson:gson:2.8.5' implementation 'com.squareup.retrofit2:retrofit:2.5.0' implementation 'com.squareup.retrofit2:converter-gson:2.5.0' implementation 'com.squareup.okhttp3:okhttp:3.12.2' implementation 'com.squareup.okhttp3:logging-interceptor:3.11.0' //rxjava2 implementation 'io.reactivex.rxjava2:rxjava:2.2.2' implementation 'io.reactivex.rxjava2:rxandroid:2.1.0' //配合Rxjava2 使用 implementation 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0'
2、在AndroidManifest.xml中添加权限
<uses-permission android:name="android.permission.INTERNET"/>
3、添加数据类Task
data class Task(var id: Int, var name: String?)
4、 添加网络请求类NetworkService
import io.reactivex.Observable;
import retrofit2.http.GET;
public interface NetworkService {
@GET("data.json")
Observable<Task> query();
}
5、activity中调用
class MainActivity : AppCompatActivity() {
private val BASE_URL = "https://raw.githubusercontent.com/cxyzy1/rxjava_retrofit_demo/master/"
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
queryData()
}
private fun queryData() {
//创建Retrofit对象
val retrofit = Retrofit.Builder().baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.build()
//获取UserMsgService对象
val networkService = retrofit.create(NetworkService::class.java)
networkService.query()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(object : Observer<Task> {
override fun onSubscribe(d: Disposable) {
}
override fun onNext(task: Task) {
contentTv.text = task.toString()
}
override fun onError(e: Throwable) {
Log.v("", e.message)
}
override fun onComplete() {
}
})
}
}
网络请求结果截图
Demo源代码
https://github.com/cxyzy1/rxjava_retrofit_demo
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持Devmax。