添加请求拦截器

app/src/main/java/cn/yunliyunwai/beyondclouds/data/TokenInterceptor.java

+package cn.yunliyunwai.beyondclouds.data;
+
+import android.util.Log;
+
+import java.io.IOException;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import cn.yunliyunwai.beyondclouds.viewmodel.AuthenticationViewModel;
+import okhttp3.Interceptor;
+import okhttp3.Request;
+import okhttp3.Response;
+
+@Singleton
+public class TokenInterceptor implements Interceptor {
+    private AuthenticationViewModel authenticationViewModel;
+
+    @Inject
+    public TokenInterceptor(AuthenticationViewModel authenticationViewModel) {
+        this.authenticationViewModel = authenticationViewModel;
+    }
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Request.Builder requestBuilder =  chain.request().newBuilder();
+        if (authenticationViewModel.getAuthenticationState().getValue() == AuthenticationViewModel.AuthenticationState.AUTHENTICATED) {
+            requestBuilder
+                    .addHeader("Authorization","Bearer " + authenticationViewModel.getToken());
+            Log.d(getClass().getName(), "检测到用户已认证，本次请求将携带token：" + authenticationViewModel.getToken());
+        } else {
+            Log.d(getClass().getName(), "检测到用未认证，本次请求不携带token！");
+        }
+        return chain.proceed(requestBuilder.build());
+    }
+}

app/src/main/java/cn/yunliyunwai/beyondclouds/di/module/AppModule.java

@@ -18,6 +18,7 @@ import java.util.concurrent.TimeUnit;
 import javax.inject.Singleton;
 
 import cn.yunliyunwai.beyondclouds.adapter.common.LiveDataCallAdapterFactory;
+import cn.yunliyunwai.beyondclouds.data.TokenInterceptor;
 import cn.yunliyunwai.beyondclouds.data.source.local.database.BlogDatabase;
 import cn.yunliyunwai.beyondclouds.data.source.local.database.ProjectDatabase;
 import cn.yunliyunwai.beyondclouds.data.source.local.database.QuestionDatabase;
@@ -89,9 +90,12 @@ public class AppModule {
 
     @Singleton
     @Provides
-    public OkHttpClient provideOkHttpClient() {
+    public OkHttpClient provideOkHttpClient(TokenInterceptor tokenInterceptor) {
         OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder()
-                .connectTimeout(60, TimeUnit.SECONDS);
+                .connectTimeout(10, TimeUnit.SECONDS)
+                .readTimeout(20, TimeUnit.SECONDS)
+                .writeTimeout(20, TimeUnit.SECONDS)
+                .addInterceptor(tokenInterceptor);
         return clientBuilder.build();
     }
 

app/src/main/java/cn/yunliyunwai/beyondclouds/viewmodel/AuthenticationViewModel.java

+package cn.yunliyunwai.beyondclouds.viewmodel;
+
+import android.content.Context;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+@Singleton
+public class AuthenticationViewModel {
+
+    private static final String SHARED_PREFERENCES_NAME_AUTHENTICATION = "SHARED_PREFERENCES_AUTHENTICATION";
+
+    private static final String SHARED_PREFERENCES_AUTHENTICATION_KEY_TOKEN = "SHARED_PREFERENCES_AUTHENTICATION_TOKEN";
+
+    private String token;
+
+    private MutableLiveData<AuthenticationState> authenticationState = new MutableLiveData<>();
+
+    public static enum AuthenticationState {
+        /**
+         * 未认证
+         */
+        UN_AUTHENTICATION,
+
+        /**
+         * 已认证
+         */
+        AUTHENTICATED
+    }
+
+    @Inject
+    public AuthenticationViewModel(Context context) {
+        String token = context.getSharedPreferences(SHARED_PREFERENCES_NAME_AUTHENTICATION, Context.MODE_PRIVATE).getString(SHARED_PREFERENCES_AUTHENTICATION_KEY_TOKEN, null);
+        if (null != token) {
+            this.token = token;
+            this.authenticationState.setValue(AuthenticationState.AUTHENTICATED);
+        } else {
+            this.authenticationState.setValue(AuthenticationState.UN_AUTHENTICATION);
+        }
+    }
+
+    public LiveData<AuthenticationState> getAuthenticationState() {
+        return authenticationState;
+    }
+
+    public String getToken() {
+        return token;
+    }
+
+    /**
+     * 用户登录
+     * @param account
+     * @param password
+     */
+    public void login(String account, String password) {
+
+    }
+}