I am not sure I follow you with "your link should be to a web page on your site that actually exists". The "link" to launch the app is not actually a real Web page link. Yes, I reuse http schema but com.mycompany.myapp is not a site, it is the host that my app activity registers to handle.
On Jan 14, 6:54 pm, Dianne Hackborn <[email protected]> wrote: > Maybe I am missing something here, but your link should be to a web page on > your site that actually exists. If the user arrives there, they don't have > their app installed on their device (or aren't on an Android device at all), > so you can tell them they need to install the app and have a link to Market. > If the app already is on the device, then it is catching that URI so they > get the option to launch it. > > Fwiw, this is essentially how things like YouTube and maps works, except of > course they are *often* pre-installed on devices (but not always), and the > "fallback" web page is actually their full web site. > > There is also another Google service that does the full flow you are talking > about, though for the life of me I can't recall what it is. > > > > > > On Fri, Jan 14, 2011 at 12:16 PM, ls02 <[email protected]> wrote: > > I have something like this in the web page > > > <a href="http://com.mycompany.myapp/do_very_cool_stuff";>Click to do > > Very Cool Stuff With The App</a> > > > My app registers http schema and com.mycompany.myapp host so if it is > > installed when user clicks on the link the app will be launched from > > the page and will detect the intent and perform "Very Cool Stuff" > > action. > > > However if my app is not installed the browser will display "Web page > > not available" error > > > "The web page "http://com.mycompany.myapp/do_very_cool_stuff"; might be > > temporarily down..." > > > I want to handle this error and instead message to user to install the > > app. > > > On Jan 14, 2:33 pm, Spiral123 <[email protected]> wrote: > > > I would recommend you re-read the earlier post from Marcin. Let your > > > web page detect a Mobile browser and display a market:// link to your > > > app. > > > > If the user follows the link to the Market, it will detect if the app > > > is already loaded on your phone and will prompt you to either Install > > > it or Open it....which is the behavior you are asking for. > > > > I also don't understand how the user can try to 'launch your app if it > > > is not installed' - if it's not installed he won't be able to see it > > > let alone launch it, so he's not going to get any 'ugly error'. Of > > > course, if what you are really trying to do is get your web page to > > > launch an app on my phone when I visit it then.........please give me > > > the address of your web page so I know never to go there. :-) > > > > On Jan 14, 2:10 pm, ls02 <[email protected]> wrote: > > > > > The app is launched from the web page to perform certain action. I do > > > > not want to discuss why I need to do this. I want to know how to > > > > detect app is installed or not and if it is not possible how to handle > > > > the error in the web page when user tries to launch my app and it is > > > > not installed. Right now the browser gives the same ugly error as > > > > general invalid link error. > > > > > On Jan 14, 1:01 pm, TreKing <[email protected]> wrote: > > > > > > On Fri, Jan 14, 2011 at 11:35 AM, ls02 <[email protected]> wrote: > > > > > > But can I at least handle exception when user clicks on the link to > > open > > > > > > the app and the app is not installed? > > > > > > What reason do you have for trying to launch your own app from your > > website? > > > > > If the user has your app I'm sure they can figure out how to open it. > > > --------------------------------------------------------------------------- > > ---------------------- > > > > > TreKing <http://sites.google.com/site/rezmobileapps/treking> - > > Chicago > > > > > transit tracking app for Android-powered devices- Hide quoted text - > > > > - Show quoted text - > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected]<android-developers%2Bunsubs[email protected]> > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them.- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
