offline-caching

I just discovered some strange behaviour on iPad with the new iOS 6. I'm testing a web app for offline usage. The web app is no more than a static website with a cache manifest, so no special frameworks like sencha touch or tools like phnoegap are used. Just HTML, CSS and JavaScript and a cache.manifest. The App worked fine before: I could save the website to the home screen. When I opened it from there, all the data would be downloaded for caching. At the end of the download the pop-up would come to ask if I wanted to increase the cache to 50MB – accepted – everything was fine – offline usage

I am trying to make offline maps through caching (IndexedDB) in browser. I understand the concept is that I download and store the tiles of map first when connected to internet. Then I have to load the tiles logically offline. However, I'm not able to figure it out. How do I store them and how to load them again logically? I'm stuck here. I am using the leaflet API for maps. How can this be implemented? Dr.YSG See my extensive research on this at: Storing Image Data for offline web application (client-side storage database) and at: https://gis.stackexchange.com/questions/44813/database-for

I want to add service worker to my site to offer a good offline experience to my site users. (Site back-end is PHP) I'm still new to Javascript promises and service workers, but here is what i reached so far : my index.php page has this script to register service worker <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('sw.js')}; </script> and for service worker file i use the following code var CACHE_STATIC_NAME = 'static-v74'; var CACHE_DYNAMIC_NAME = 'dynamic-v74'; self.addEventListener('install', function (event) { console.log('Installing Service Worker ...',

I created a json file locally. I can view that in data>data>com.example.storage>files>filename.json. Using this, I want to fetch all the text values locally & download all images and save it in SD card from Image URL which is available in the json file. And in offline mode Itself I can load all the text values from json file as well as images from SD card. Please let me know if this idea will work out or not. If not Please suggest some other way to do this. The task is using local JSON file I want to fetch data. How to do that?(I am using separate ID for each data). Sample JSON file is. {

I have created appliction with webview. if i have do any action and the net is disconnected i want to display one alert. I have tried the following, added this in oncreate method. public class AndroidNetTestActivity extends Activity { public static WebView webview; private Handler mHandler = new Handler(); private boolean isConnected = true; final String offlineMessageHtml = "Net is disconnected"; final String timeoutMessageHtml = "Connection timed out"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); webview=

I have a problem with offline capabilities. I turn on offline feature in my project with firebase. Everything is fine until i close app completely and reopen it. It made crash. This is log 05-23 07:44:58.407 7286-7328/com.iantsu.projectm E/RunLoop: Uncaught exception in Firebase runloop (3.0.0). Please report to support@firebase.com java.lang.NullPointerException: Attempt to invoke virtual method 'void com.google.android.gms.internal.zzafg.zzg(com.google.android.gms.internal.zzafa, com.google.android.gms.internal.zzahu)' on a null object reference at com.google.android.gms.internal.zzafc.zzb