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Is an application instance always created before any action?

On Android, you can provide your own implementation of the Application class by extending it and declaring a name in the manifest.

My question is whether this implementation will always be created before the initial action, or can activity be started before the application instance can be created?

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android android-activity android-manifest
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2 answers

whether this implementation will always be created before the initial operation

Yes. This is one of the first objects created in your process.

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Yes The application class is the first class that is initialized in any Android application ...

Thus, if any class extends the application class, this class will be initiated first.

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