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Will context.getApplicationContext return null happen? #356

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aiueoH opened this issue Jan 26, 2019 · 6 comments
Open

Will context.getApplicationContext return null happen? #356

aiueoH opened this issue Jan 26, 2019 · 6 comments

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@aiueoH
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@aiueoH aiueoH commented Jan 26, 2019

According to this page Understanding the Android Application Class

The application object is not guaranteed to stay in memory forever

So the application will be released when somes components is alive? My app has some crash reports caused by application null pointer exception in service.
@kamiljeglikowski
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@kamiljeglikowski kamiljeglikowski commented Jan 26, 2019

Can you show those crashes?
@pablichjenkov
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@pablichjenkov pablichjenkov commented Jan 26, 2019

Possible in theory bizarre in practicality.
@nareshkatta99
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@nareshkatta99 nareshkatta99 commented Jan 27, 2019

Yes it will some times.
We faced the same issue.
You should use context.getApplicatinContext when it requires to place some thing global level.
You can use them for things like toast etc but not for creating UI etc.
@aiueoH
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@aiueoH aiueoH commented Jan 28, 2019 •
edited

Can you show those crashes?

It happened on a few devices. I can't reproduce.
@aeramli
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@aeramli aeramli commented Jan 28, 2019

Services are running in a different sandbox from the app, having a service running doesn't guarantee keeping the app alive.
You might have to change your approach of "setting things globally" -> Broadcast, sharedpreferences ...Etc
@aemxn
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@aemxn aemxn commented Jan 28, 2019 •
edited

Careful when using getApplicationContext as it would cause memory leak when using it with long living object. Try some other contexts as described here
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6 participants
@aemxn @pablichjenkov @aiueoH @aeramli @kamiljeglikowski @nareshkatta99
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