CODEWITHSUNDEEP
javaandroid
DoubleP90
DoubleP90

Reputation: 1249

Home button brings back to my app

I am making a car launcher application, which contains shortcuts to other apps, when i'm in another app i'd like to press the home button and go back to my launcher So basically i need to override the home button outside of my app,the override has to work only when my app is opened in the background so when i close my app the home button will work as usual taking you to your default launcher

Can i implement something like this or i'm asking too much?

Upvotes: 2

Views: 253

Answers (2)

FoamyGuy
FoamyGuy

Reputation: 46856

If you go the route of making your app act be a replacement home screen you'll have to include in the install instructions for the users to set your app as the default launcher.

Then the home button would take them to your app. In order to get it to switch back to the default launcher when they are not in "car" mode would be a bit tricky but you could prolly achieve it with some sort of fork activity that checks if car mode is enabled if so go to your car mode launcher if not go to the default launcher (it gets trickier if the user already has a different 3rd party launcher) So essentially your app will always be the home screen app no matter if car mode is enabled or not, but if it is not then you manually start the "normal" home screen.

Upvotes: 1

Raghav Sood
Raghav Sood

Reputation: 82563

There is no way to intercept the home button on Android, unless you make your app the home screen. This is for security reasons, so that malicious apps cannot take over your device by overriding all the buttons that can exit. The home button is the one sure shot way to be able to leave any app.

In short, no it's not possible, and even if it were, it is a serious disruption in what a user expects out of an app's behavior.

Upvotes: 12

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