Refactor Android init methods for more flexibility #983

Job	Run time
Ktlint	1m 9s
Clippy (stable) (ubuntu-latest)	1m 2s
Clippy (stable) (macos-latest)	32s
Clippy (-Zbuild-std)	1m 2s
Clippy (MSRV) (ubuntu-latest)	1m 0s
Clippy (stable) (windows-latest)	36s
Check for documentation errors	12s
Clippy (MSRV) (macos-latest)	1m 5s
Rustfmt	8s
Clippy (MSRV) (windows-latest)	57s
Check semver compatibility	15s
Test (ubuntu-latest)	18s
Test (Android)	2m 46s
Test (macos-latest)	30s
Test iOS (Catalyst)	22s
Test (FreeBSD)	2m 31s
Test (windows-latest)	44s
Verify Android artifacts	1m 21s
	16m 30s

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