I am using the Glass Development Kit Preview SDK Add on to API Level 19 targeting Glass XE16.2.
How can the app push a static card to the timeline on the right, without using the Mirror API?
Thanks
This is currently not possible like it was in XE12 which was replaced by XE16 in April 2014.
From the XE16 release notes:
https://developers.google.com/glass/release-notes
Changes to TimelineManager:
The TimelineManager class and support for static cards from the GDK have been removed.
I suspect this might get resolved in a future XE update so you might want to hang tight. If you have to resolve this now, since its possible to do a timeline insert from a server it would not be impossible to either do a timeline insert from your GDK app (but with poor security ramifications) or to send a command to a server you control with enough metadata (what user, what to put on card) so that server can do the timeline insert. This assumes that server has previously been authorized by the user to do such an insert.
Sorry to be the bearer of bad news.
Related
Is it possible to build a single app that can work as native(GDK) and also insert cards into my timeline with Mirror API. Or i have to build separate apps for GDK and Mirror API.
I am aware that we can invoke a GDK app from a card inserted through Mirror API. But these are
in essence two different apps interacting.
So is it possible that i can do the whole authorization through GDK app?
It is certainly feasible to have a GDK-based app on Glass call the Mirror API to insert a card. Calling the timeline.insert endpoint is not a big deal. You will have bigger issues if you're trying to handle callbacks since you'll need a stable IP address, but if all you want to do is insert cards with a URI to use as an intent trigger, that part is not an issue.
The issue you face, as you noted, is to do the authorization through Glass. This part is still immature in the GDK, and although there are some workarounds, there is nothing that Google provides yet that can help with this. Auth support is quite frequently requested, so expect something to address this as the GDK matures.
I want to start Hangouts from my Glassware so that the user can make video call to any of his contacts in the Glass. I tried the giving the package name of the hangout app in an intent , but it did not work. If anybody has tried this before ,please do share.
Thanks
Starting a hangout from an intent isn't supported by the GDK. A feature request was filed in our issue tracker here; feel free to follow it so that you can be updated if anything changes!
I want to start Hangouts from my Glassware so that team can see what is out put is coming.
I did lots of RnD, then I come up with below solution
steps -
install myglass into mobile
install your apps in google glass
paired with glass with your mobile thr Bluetooth
start myglass apps and sync with glass
done
now start you application over the google glass, it will show at mobile in same way and behavior.
let me know if it work
How can we publish/distribute applications which are developed for Glass with GDK?
At submission form I don't see any APK file upload option. But I see a yes/no question(Does this Glassware use invocation voice commands?) which is a meaningful question for apps that are developed with GDK.
Am I missing something?
I just think that submission form is only for mirror api glasswares. Is that correct?
Google has not yet announced how you can distribute GDK Glassware on MyGlass. For now, hang tight.
The submission form you link is indeed only for Mirror API Glassware. More details about distributing GDK Glassware will be announced some time after the GDK graduates from its sneak peek release level into something more stable.
There are however multiple glass app sites. Here are 2 that I know of:
www.glass-apps.org
www.glassappz.com
Is it possible to get the user's location without using the Mirror API?
The hacking glass Google I/O video mentioned several android apis currently work and listed gps as one of them, however I have not had luck so far. I know Glass does not have GPS itself and must use the paired phones GPS. Would be awesome if we could use existing android location manager or newer Google play services location apis!
Yes, you can - if you use the GDK examples as a base and follow the Location Strategies (http://developer.android.com/guide/topics/location/strategies.html).
For a specific example, I just posted a hack of the GDK Compass sample in answer to another question that adds location updates pulled from the GPS (with or without a paired phone):
Can GPS for Glass be accessed through the Android SDK?
Google Glass does NOT have a GPS chip in it. I don't see why you could not have an apk that uses the LocationManager and add a listener to it that would print out the latitude and longitude in Logcat or even on GLASS itself. Now, to get that location to a remote user, that would require more work than not using the Mirror API.
What is the difference between Glass Mirror API and Google GDK?
Google has announced the GDK here: https://developers.google.com/glass/gdk
but they haven't exposed any new features specific to Glass yet. How do we actually use the Google GDK?
Looking at the examples listed on the above link, we can create APKs, load APKs onto Glass and launch them using adb shell but is there a complete app or example anywhere?
The difference between the Mirror API and the forthcoming GDK boils down to where the application being written will run.
The Mirror API specifies how a web-based application will communicate with Google's servers to send updates to a user's Glass and how it will receive notifications when the user takes an action (such as a share, or a location change) that is directed at the Glassware.
The GDK is intended for applications that will run on Glass itself and have more low-level access to the sensors and to the underlying Android environment that Glass is built on top of. Google has not released the GDK yet - that page is where it will be released, and provides some early "getting started" concepts for developers who are interested in building native apps that run on Glass.
GDK has not been launched yet, so you cannot actually use it right now.
GDK will allow you to work directly on the Glass device using your Android development skills whereas Mirror API is a cloud/web-based API for interacting with a user's timeline only. See Prisoner's answer for more detail on this.
Because GDK has not been released yet, "complete" apps and examples do not exist. There are three samples (Compass, Level, and Stopwatch) listed on the link that you posted. The page says that these samples will eventually be updated into a "full Glass experience" when GDK is launched.
When we launch the GDK, we'll also update these samples to show the migration path from a traditional Android app to a full Glass experience. Make sure to check regularly for updates
Glass Mirror API is for developing the Glassware(Pushing Webcards from server to Glass).
Google GDK(Glass Development KIT) is similar to current Android SDK, but they will have some special tool that will help develop Android Apps for google glass. Even now without GDK, developers are developing apps using Android SDK.
GDK will allow you to run apks on GLASS along with the GlassHome. GlassHome is the main display that you see within GLASS. If you install an APK without the GDK, the only way to get to it is using something like Launcher2.apk. With the GDK, and this is an assumption, your apk will be represented as a card within GlassHome.