I'd like to have a single 'Get App' link that auto-detects the user's device type and browser and directs to the appropriate location (iTunes, Google Play, or website sign-up). I am currently using Onelink.to, but it has the following limitations:
if you're on iOS using a non-Safari browser (like Chrome) you end up looking at a bunch of raw JSON because it doesn't know to launch the App Store app. In this case, I'd prefer to direct to the iTunes website or better yet, deep link into the App Store app.
if using the link on your own site and a user is on a device that redirects to a different page of your own website, it complicates setting up event-based goals in Google Analytics
Are there any good JavaScript solutions that handle the App Store redirect while excluding this action on browsers that don't support the iTunes headers?
Thanks!
You can use javascript navigator.userAgent and parse it to detect the device. Then just generate the link according to it.
Here is an example for ios detection:
Detect if device is iOS
Related
I have an android app that can be accessed through a web browser too. I need to put a banner to let the user install the android application. How can i tell (if the user enters to the application through the web browser) using javascript or jquery, if the android app is already installed on his mobile phone?
All i want to do is: If the user clics the banner and the app is already installed, open the android app. Otherwise, redirect the user to the playstore to let him install the app.
Let's say your app is uploaded on both Apple AppStore and Google Play stores.
You need to:
Sniff in your webpage which OS is installed from the device accessing your page
good link to find how => here
Enable deep linking to listen for exactly same link from your mobile native app
for Android you need to register your main activity or any other activity to listen for these links
for iOS - no idea honestly, look around or find a 3rd party service
code for Google Play with deep link. And the deep link is same as your website page you want to cache/index in Google Search (or any other search engine)
sample link to index/use => http://my_website.com/results
// below snipplet need to be for Android devices only
// i.e. need to sniff and have if/else validation for Android, iOS, desktop and so on
// will call with 25 mills delay in case deep link fails, i.e. no installed app
setTimeout(function () { window.location = "https://play.google.com/details?id=com.foo.myapp"; }, 25);
// try to load the deep link URL
window.location = "http://my_website.com/results";
repeat above for iOS and desktop/Windows Mobile
Additional advantage of above is the full app indexing without the lame App Indexing excuse from Google (min sdk no more than 17, Chrome for Android availability and so forth limitations).
There is no way to detect if an app is installed using Javascript.
However you can get the behavior you describe and you don't even need any javascript:
Choose an URL for your app on a web server you own and make the banner link to it.
Set this web URL as a deep link handled by your app by specifing it in your app's manifest. It should open the main Activity.
On your web server, configure this URL to redirect to the Play Store URL of your app. Optional: if your app is also on iOS, you could detect the iOS browser and display something else.
If the app is installed it will handle the URL and open, otherwise the browser will follow the link and the redirect and the Play Store app will open to handle the Play Store URL to your app.
I'm looking for leads on how to capture web page metadata from the current browser page. I want to create a feature in my application that will allow the user to press a hot key and record meta data from the web page currently open in the user's browser. My application will be running minimized, this feature is to be activated by a global hot key.
I'm using nw.js (formerly Node-Webkit) to create this application, so ideally, the solution would be javascript running in a desktop installation of Node.js. If this is not practical, I understand that I can call platform specific code from nw.js, so solutions developed in any desktop os language would be of interest.
My application targets OS X and Windows.
I'm hoping to capture metadata from all major modern browsers (Chrome, Firefox, Safari and IE 10+).
At a minimum I need to capture the page url, but I also want to capture Keywords, Description and highlighted text for the source web page.
I need to implement this function without modifying the source webpage in any way, and I prefer to avoid the need for browser extensions, bookmarklets or plugins.
If a solution exists using a remote controlled browser extension (no user interaction) that would be of interest, but ideally I want to avoid requiring the end user to install or interact with anything but my application.
My search to date has located no information on reading web page information from applications outside the browser.
Any thoughts or leads are much appreciated.
I'm planning to make a login system by USB, so if you put in a USB-drive and open a specific webpage, the website asks the USB-drive for the code (e.g. by a JavaScript file, a redirect or something like that).
The problem is, because of sandboxing, you can't load or redirect to local files. I don't know a solution for this problem. Can you guys help me? I don't need specific code, just an example or something in that way.
Maybe you can read up on USB-HID. Wikipedia:
The USB human interface device class (USB HID class) is a part of the USB specification for computer peripherals: it specifies a device class (a type of computer hardware) for human interface devices such as keyboards, mice, game controllers and alphanumeric display devices.
Here are some references:
USB HID (Human Interface Device)
node-hid - Access USB HID devices from node.js
DepthJS: 'Allows any web page to interact with the Microsoft Kinect using Javascript'.
A related Stackoverflow question:
Write data to USB HID using Javascript, HTML5, or any cross platform language (supports Android)
One other possibility is to check out the Chrome HID (Human Interface Device) APIs:
Interacting with USB HID devices from web apps – via Chrome Apps, see below
Relevant Chrome API docs
Please note that for the time being, you cannot interact directly with the USB device (i.e. you cannot access any WebAPI offering that kind of fine-grained control).
Building a Chrome App (different from a Chrome Extension) may help; This article may point you in the right direction, since it also provides sample code.
The only way I can think of is putting a html file on the usb stick that essentially generates some sort of login token and gives you a link or a form to a login processor. You can then access the webpage by opening the local file first which will redirect you to the actual webpage.
This local script may include a javascript from the server to get some challenge-response-data which it hashes somehow (perhaps in combination with a password) and puts it into the form data.
Web PKI authentication from Modern Browsers may be achieved by using Browser Extension. One such extension is Signer.Digital browser extension. Use below Javascript promises from the APIs provided by Signer.Digital extension.
SignerDigital.getSelectedCertificate() to register user's certificate
SignerDigital.signHash(hash) to sign token at browser and verify at server
For all Javascript APIs refer to SO Answer https://stackoverflow.com/a/63173083/9659885
Disclaimer : I work for a company supporting the application below
Hello, you may try to use Nexu open-source application for communication with smartcards or USB tokens. It also support PKCS 12 keystores.
For example, the application is connected to the DSS webpage on the website of European Commission : see the link.
I want to create a Google Sites script that can detect whether my visitors are using Android or iOS and then redirect them to AppStore or Google Play accordingly.
This will allow me to advertise only one QR code for all devices.
Is there a way to easily set it up and host it on Google Sites?
Well the script needs to inspect the HTTP_USER_AGENT header, and do something like this:
Common link to open iOS, Android and BlackBerry app
Bear in mind that not everyone on an Android-based device has the Google Play store (e.g. Kindle Fire -> Amazon Appstore); unfortunately getting the user to an appropriate app store on Android is tricky because there are many options.
I'm developing a small site that will only be viewed in-app inside a UIWebView, and one page has several links to an external website. I'd like these to open in mobile Safari, but all links inside the app load within the webview. Modifying the source of the app isn't an option since the site needs to be live before any changes could be submitted.
Is there a way to force a link inside a UIWebView to launch mobile Safari using HTML/5 or Javascript? Mimic shouldStartLoadWithRequest? Sneaky, hacky workarounds or brilliant alternate solutions?
(And, out of sheer curiosity... why not?)
It would be bad design to let sites access the frameworks on the iPhone via simple HTML. This would open up all sorts of security holes. Its not web behavior you want to alter, so I think you may need to change the app source. I still don't understand why that isn't an option. Could you go into more depth?
One option would be to add a custom URL handler. Your website could then determine if the "broswer" is the app and serve custom URLs for those links you'd like to maintain (aka open) in your app. Then, any standard HTTP/s URLs would open in Mobile Safari.
In other words, have your web server provide urls like myappurl:// for the links you'd like your app to handle, and http:// which would open Mobile Safari.