增加Retrofit+OkHttp 响应式网络请求框架

app/build.gradle

@@ -28,11 +28,14 @@ dependencies {
 
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'com.google.android.material:material:1.1.0'
     implementation 'androidx.annotation:annotation:1.1.0'
-    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
+    implementation 'com.squareup.retrofit2:retrofit:2.7.1'
+    implementation 'com.squareup.okhttp:okhttp:2.7.5'
+    implementation 'com.squareup.retrofit2:converter-gson:2.7.1'
 }

app/src/main/java/com/yuxihan/sdu/Constant.java

@@ -0,0 +1,5 @@
+package com.yuxihan.sdu;
+
+public class Constant {
+    public static final String BASE_URL = "http://www.yuxihan.com/";
+}

app/src/main/java/com/yuxihan/sdu/data/LoginDataSource.java

@@ -1,17 +1,45 @@
 package com.yuxihan.sdu.data;
 
+import android.util.Log;
+
+import com.yuxihan.sdu.Constant;
+import com.yuxihan.sdu.data.model.DataBean;
 import com.yuxihan.sdu.data.model.LoggedInUser;
 
-import java.io.IOException;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
 
 /**
  * Class that handles authentication w/ login credentials and retrieves user information.
  */
 public class LoginDataSource {
 
-    public Result<LoggedInUser> login(String username, String password) {
+    public Result<LoggedInUser> login(final String username, String password) {
 
-        try {
+        Retrofit retrofit = new Retrofit.Builder().baseUrl(Constant.BASE_URL)
+                .addConverterFactory(GsonConverterFactory.create()).build();
+        UpdateService updateService = retrofit.create(UpdateService.class);
+        Call<DataBean> call = updateService.login(username,password);
+        call.enqueue(new Callback<DataBean>() {
+            @Override
+            public void onResponse(Call<DataBean> call, Response<DataBean> response) {
+                //请求成功，返回是一个封装为DataBean的响应
+                String result = response.body().toString();
+                Log.e("TAG","Url ===== "+result);
+            }
+
+            @Override
+            public void onFailure(Call<DataBean> call, Throwable t) {
+                //请求失败
+            }
+        });
+
+        return new Result.Success<>(new LoggedInUser(username,username));
+
+        /*try {
             // TODO: handle loggedInUser authentication
             LoggedInUser fakeUser =
                     new LoggedInUser(
@@ -20,7 +48,7 @@ public class LoginDataSource {
             return new Result.Success<>(fakeUser);
         } catch (Exception e) {
             return new Result.Error(new IOException("Error logging in", e));
-        }
+        }*/
     }
 
     public void logout() {

app/src/main/java/com/yuxihan/sdu/data/UpdateService.java

@@ -0,0 +1,28 @@
+package com.yuxihan.sdu.data;
+
+
+import com.yuxihan.sdu.data.model.DataBean;
+
+import retrofit2.Call;
+import retrofit2.http.GET;
+import retrofit2.http.POST;
+import retrofit2.http.Query;
+
+public interface UpdateService {
+    @POST("addUser")
+    Call<DataBean> addUser(
+            //内部是请求的参数
+            @Query("userName") String userName,
+            @Query("password") String password
+    );
+    @POST("login")
+    Call<DataBean> login(
+            //内部是请求的参数
+            @Query("userName") String userName,
+            @Query("password") String password
+    );
+    @GET("hi")
+    Call<DataBean> hi(
+
+    );
+}

app/src/main/java/com/yuxihan/sdu/data/model/DataBean.java

@@ -0,0 +1,38 @@
+package com.yuxihan.sdu.data.model;
+
+public class DataBean {
+
+    /**
+     * errCode : 1
+     * errMsg :
+     * result :
+     */
+
+    private String errCode;
+    private String errMsg;
+    private String result;
+
+    public String getErrCode() {
+        return errCode;
+    }
+
+    public void setErrCode(String errCode) {
+        this.errCode = errCode;
+    }
+
+    public String getErrMsg() {
+        return errMsg;
+    }
+
+    public void setErrMsg(String errMsg) {
+        this.errMsg = errMsg;
+    }
+
+    public String getResult() {
+        return result;
+    }
+
+    public void setResult(String result) {
+        this.result = result;
+    }
+}