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ネットワークが利用できないときに、オフラインブラウジングのキャッシュを有効にしようとしています。 不幸にも、何らかの形で動作しません。アプリをデバッグするときに、インターセプタやキャッシュにアクセスしています。オフラインキャッシュokhttp + retrofit not working
私は以下のコードで何かが間違っていると思います。
public class ApiHelper {
Context context;
private static final int TIMEOUT = 30;
private static final int WRITE_TIMEOUT = 30;
private static final int CONNECT_TIMEOUT = 10;
//private static final int CACHE_SIZE = 500 * 1024 * 1024;
private static final int CACHE_SIZE = 10 * 1024 * 1024;
public static final String baseUrl = "http://test.com/api-new/";
public ApiHelper(Context context) {
this.context = context;
}
private boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivityManager
= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
return activeNetworkInfo != null && activeNetworkInfo.isConnected();
}
// Configure access cache when offline
private final Interceptor REWRITE_CACHE_CONTROL_INTERCEPTOR = new Interceptor() {
@Override
public Response intercept(Chain chain) throws IOException {
Response originalResponse = chain.proceed(chain.request());
if (isNetworkAvailable(context)) {
int maxAge = 60; // read from cache for 1 minute
return originalResponse.newBuilder()
.removeHeader("Pragma")
.header("Cache-Control", "public, max-age=" + maxAge)
.build();
} else {
int maxStale = 60 * 60 * 24 * 28; // tolerate 4-weeks stale
return originalResponse.newBuilder()
.removeHeader("Pragma")
.header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale)
.build();
}
}
};
private static OkHttpClient CLIENT = new OkHttpClient();
File httpCacheDirectory = new File(context.getCacheDir(), "HttpCache");
Cache cache = new Cache(httpCacheDirectory, CACHE_SIZE);
{
CLIENT = new OkHttpClient.Builder().
connectTimeout(CONNECT_TIMEOUT, TimeUnit.SECONDS).
writeTimeout(WRITE_TIMEOUT, TimeUnit.SECONDS).
readTimeout(TIMEOUT, TimeUnit.SECONDS).
authenticator(new Authenticator()).
addInterceptor(REWRITE_CACHE_CONTROL_INTERCEPTOR).
cache(cache).
addInterceptor(new Interceptor() {
@Override
public Response intercept(Chain chain) throws IOException {
Request request;
UserModel user = HelperFactory.getDatabaseHelper().getUserDao().getCurrentUser();
if (user != null && user.getAccess_token() != null)
request = chain.request().newBuilder()
.addHeader("X-Auth-Token", user.getAccess_token()).build();
else
request = chain.request().newBuilder().build();
long t1 = System.nanoTime();
Logger.debug(ApiHelper.class.getName(), String.format("Sending request %s on %s%n",
request.url(), chain.connection()));
UserModel currentUser = HelperFactory.getDatabaseHelper().getUserDao().getCurrentUser();
if (currentUser != null)
Logger.debug(ApiHelper.class.getName(), "Sending request header " + request.headers().toString());
if (request != null && request.body() != null && request.body().contentLength() > 0) {
Buffer buffer = new Buffer();
request.body().writeTo(buffer);
String body = buffer.readUtf8();
Logger.debug(ApiHelper.class.getName(), "Sending request body " + body);
}
Response response = chain.proceed(request);
String msg = response.body().string();
long t2 = System.nanoTime();
Logger.debug(ApiHelper.class.getName(), String.format("Received response %s in %.1fms%nResponse code:%s%nReceived data: %s",
response.request().url(), (t2 - t1)/1e6d, response.code(), msg));
return response.newBuilder()
.body(ResponseBody.create(response.body().contentType(), msg))
.headers(response.headers())
.build();
}
}).build();
}
@NonNull
public static MyApplication getInstance() {
Retrofit rf = new Retrofit.Builder()
.baseUrl(baseUrl)
.addConverterFactory(GsonConverterFactory.create(new GsonBuilder()
.excludeFieldsWithModifiers(Modifier.FINAL, Modifier.TRANSIENT, Modifier.STATIC)
.create()))
.client(CLIENT)
.build();
return rf.create(MyApplication.class);
}
}
リンクを参照してください。http://stackoverflow.com/questions/23429046/can-retrofit-with-okhttp-use-cache-data-when-offline – Vadivel
こんにちは、私はオプションがありません.setCache（キャッシュ） okhttpクライアント。 キャッシュ（キャッシュ）。 残りはあなたが言及したリンクに沿っていると思いますか？ – Simon
このビデオリンクを参照してくださいhttps://caster.io/episodes/retrofit-2-offline-cache/ – Vadivel