我正在尝试为Retrofit2创建单例实例,它工作正常。但是,一旦我想创建动态标头,就无法这样做。
public class ApiManager {
public final static String BASE_URL = "URL";
private static ApiManager instance =null;
private ApiModule apiModule;
public interface ApiModule {
@GET("exists")
Call<ServerStatus> checkExistsTeamName(@Path("teamName") String teamName);
}
private ApiManager(){
final TimeZone tz = TimeZone.getDefault();
OkHttpClient client = new OkHttpClient();
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
try {
client.interceptors().add(new Interceptor() {
@Override
public com.squareup.okhttp.Response intercept(Interceptor.Chain chain) throws
IOException {
Request original = chain.request();
Request request = original.newBuilder()
.header("X-API-Version", "1")
.header("X-USER-TIMEZONE", tz.getID())
.method(original.method(), original.body())
.build();
return chain.proceed(request);
}
});
}catch (Exception e){
}
client.interceptors().add(interceptor);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
apiModule = retrofit.create(ApiModule.class);
}
public static ApiManager getInstance() {
if(instance == null) {
instance = new ApiManager();
}
return instance;
}
public ApiModule getService() {
return apiModule;
}
public ApiModule getService(String token){
return apiModule;
}
}
在其他活动中,我可以致电进行改造。
ApiManager apiManager = ApiManager.getInstance();
apiManager.getService()。checkExistsTeamName(“ parameters”)
哪个在这里可以正常工作,但是如果我想添加额外的动态标题,我该怎么办呢?我被困在这里
最佳答案
您需要某种依赖注入。试试这个代码。在致电服务之前,请致电
ApiManager.setHeaders(map of headers);
与标头值。使用空的地图调用或将其排除以将其排除。
public class ApiManager {
public final static String BASE_URL = "URL";
private static ApiManager instance =null;
private ApiModule apiModule;
public interface ApiModule {
@GET("exists")
Call<ServerStatus> checkExistsTeamName(@Path("teamName") String
teamName);
}
private static Map<String, String> headers = new HashMap<>();
public static void setHeaders(Map<String, String> headers) {
ApiManager.headers = headers;
}
private ApiManager(){
final TimeZone tz = TimeZone.getDefault();
OkHttpClient client = new OkHttpClient();
HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor();
interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
try {
client.interceptors().add(new Interceptor() {
@Override
public Response intercept(Interceptor.Chain chain) throws
IOException {
Request original = chain.request();
Request.Builder builder = original.newBuilder()
.header("X-API-Version", "1")
.header("X-USER-TIMEZONE", tz.getID())
.method(original.method(), original.body());
if(headers != null) {
for (Map.Entry<String, String> entry : headers.entrySet()) {
builder.header(entry.getKey(), entry.getValue());
}
}
Request request = builder.build();
return chain.proceed(request);
}
});
}catch (Exception e){
}
client.interceptors().add(interceptor);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.client(client)
.build();
apiModule = retrofit.create(ApiModule.class);
}
public static ApiManager getInstance() {
if(instance == null) {
instance = new ApiManager();
}
return instance;
}
public ApiModule getService() {
return apiModule;
}
public ApiModule getService(String token){
return apiModule;
}
}