Java tutorial
//package com.java2s; import java.io.File; import android.content.Context; public class Main { /** * Enable HTTP response cache, available from Android 4.0 onward, using reflection. */ static void enableHttpResponseCache(Context context, long cacheSize) { try { File httpCacheDir = new File(context.getCacheDir(), "http"); Class.forName("android.net.http.HttpResponseCache").getMethod("install", File.class, long.class) .invoke(null, httpCacheDir, cacheSize); } catch (Exception httpResponseCacheNotAvailable) { // Do nothing, user is using a version prior to 4.0 } } }