can i embed webpages in my app?
I need to view certain webpages of my company that is save to the app.
My app needs to access certain webpages in my company
Sure. Just add a WebView to your layout and have it load the html from a file locally (either on disk or in assets). This is assuming you don't want to download updates- if you do you need to cache the files locally then load them in the WebView.
One possible solution is to use a Service to download the pages when a connection is detected and cache them as local files on the device.
Related
I have an app which contains html files which i am displaying using a webview. This html files are nothing but documentation the users of my app require. My question is, can I update these html files without asking the user to update the entire app? I dont want to replace these html files by hosting the documentaion online.
You will have to do one of these:
Update your app (which is what you don't want)
Host the raw .html files on a web server, and whenever the user opens the app, check if there are new files available and download them.
Simply create a website that shows the .html files and open the
website in your app (which i'm guessing is what you don't want
either)
So you're left with option 2.
To update files without requiring an app update, you will need the app to obtain the HTML content online.
One option, which you mentioned you don't want, is loading a URL into the WebView rather than local HTML files.
The other option would involve hosting the web pages somewhere and the app would download them. The only benefit of this I can see, is that if the device is offline is can use the last obtained HTML file. You could just use caching to achieve this though.
How complicated are the webpages? Using JSON is another method.
I would like to load a html file (with pictures and videos) on a Android tablet, however, there is no internet connection, thus I cannot use url for the pictures and stuff....
Is there any free web servers that allow me to do so (displaying the web content at local host)?
Or is there any way I can do it by writing a android app for it?
Thanks!!
Webview's LoadURL method can take local content. using the file uri retrieving the content from your assets and render it that way. Assuming you follow the standard folder structure for a basic HTML website.
And why would you want to ask about "free web servers" if you don't even have a internet connection... All the content has to be loaded locally on the app or downloaded on the fly (assuming you don't download too much.. if its too much then you are better off packaging it in the app).
Without Internet your html page is static page.
You can store the html file in your local assets folder then:
url = "file:///android_asset/" + mName + ".html";
mWebView.loadUrl(url);
and if you also want to show the images in your web page change the source path of images in source code of html page to local folder and pate all the images to that folder.
I am working on an application where I load few websites in webview now I want to save webpages so after sometime even if there is not internet user will able to see those pages. But I am confused on how to save whole webpage in cache or any other medium. The main thing is we need to show pages back even if there is not internet.
Has anyone implemented this before. Please provide some demo code as this is my first attempt on cache..
Thank You
The easiest way is save webpages in cache directory or any other(Internal or external storage)
You can get the data of web page using HttpClient.execute() or HttpClient.get() now store that data in .html file also you have to download images or other contents which are bind to that page, Now in your application you have to check for connection if connection not available then load the page which one you saved in storage with file://<location of your webpage..>
EDIT:
I think using HTML5 you can display off-line webpages. (I never tried this, but I referred some blogs on it). Look at this nice post about HTML5 Creating mobile Web applications with HTML 5, Part 3: Make mobile Web applications work offline with HTML 5 Also this
hope this will help you.
To load an asset in HTML, I am using the URL file:///android_asset/my_image.png.
It works when I am loading HTML locally, for instance, using a WebView.loadData() method.
However, I am unable to load a local asset from a remote web site, for instance, when I load a page using WebView.loadUrl("http://example.com/my_page.html"). It shows the page, but the image is not loaded.
How can I fix this problem?
UPDATE:
tarkeshwar mentioned that it is not possible because of security reasons. I understand when you open a web page in a browser, then you as a user are unable to control what the web page is accessing. And it is also a bit different to access local file system when you may read sensitive data of the user. Here I would like just to access application assets.
A workaround could be, to download the page and load it into the WebView using loadData() method. But there might be some security switch to allow WebView to access local assets.
UPDATE2:
I need to support Android 2.3+.
You can't link to a local resource from an external page. That is due to security reasons.
See Pekka's answer for a similar question: How to show local picture in web page?
Extend WebViewClient and override shouldInterceptRequest to load the file locally. The urls would all appear remote but you can selectively load which every you need.
http://developer.android.com/reference/android/webkit/WebViewClient.html#shouldInterceptRequest(android.webkit.WebView, java.lang.String)
Also answered here:
webview shouldinterceptrequest example
The question I have is simple but hard to put in words, I'll give it a try anyways.
I am trying to load a web page in webview. However, the load time is a little bit too high.
Is there any way I can put the images in the assets folder and load them from there instead?
If not, is there a way I can load the whole site from the assets folder, providing that my PHP files can still communicate with my internet database?
I have already read most tutorials, but those are pretty vague when it comes to concrete help.
try this... WebView with custom HTML and local images
There is no way to store your php files on the device itself. They need a server to execute them and sent the result to the device if the are on the device you would just show the php code to your webview and that would certainly not work.
The Webview should be able to cache some of the images itself. But it seems that there is no way to access images from the sd card or the internal storage from your webview.
Maybe it is possible to store some of your data through html5 local storage apis but I don't have any expertise on that.
Sure ! you can do it. Just install AndroPhp it is a localServer for Android.
Locate you project than on your device under the www/ folder. If you have a DB also just import your .sql trough phpmyadmin.
on Android side call you project 127.0.0.1:8080/yourProject
Thats All!