NASA’s Johnson Space Center (JSC) has finally unveiled Valkyrie, its “superhero robot” entry to the DARPA Robotics Challenge (DRC) Trials, which take place on December 20 in Florida. Valkyrie will compete against fellow humanoid robots, such as Atlas, on a series of eight physical tasks to test the dexterity and autonomy of the robots, with the chance of going forward to the DRC Finals in 2014, where it could win $2 million from the US government. The DRC isn’t about money, though: It’s all about accelerating humanity’s development of advanced humanoid robots, for use in hazardous situations… such as war.
Valkyrie, so named after the supernatural female figures in Norse mythology that plucked fallen warriors from the field of battle and transported them to Valhalla for an eternity of feasting and mead quaffing, is 1.9 meters tall (6’2) and weighs 125 kilos (275 lbs). Valkyrie, or Val for short, has 44 degrees of freedom (divided up between her legs, feet, arms, hands, torso, and head) and is capable of walking over uneven terrain, driving a vehicle, and using tools. Oh, and yes, that is a glowing NASA logo emblazoned on her chest a la Iron Man.
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I am trying to do programmatic update to the application I am writing, since it is not a Google Play application and I want to provide a way to do updates.
I've been searching around and found out how to start the Android installer after I download the APK for the update, but I need to get a result from the installer, that tells me if the update succeeded or not, or if it was cancelled by the user.
I saw a bunch of questions on StackOverflow about this, and the answers usually involved using a broadcast receiver. The problem with that is that it can only receive intents about the package being installed, not about canceled installs of fails.
I did some more research and it seems the Intent API provides some extras such as Intent.EXTRA_RETURN_RESULT, which if set to true should return a result from the installer activity - I guess via onActivityResult. Unfortunately this doesn't work. Is there anybody that got this working/does it work like this?
Thanks in advance.
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