16 lines
1.3 KiB
Plaintext
16 lines
1.3 KiB
Plaintext
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PreferenceActivity is an Example how to make an Activity injectable.
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We might undo that as we don't actually have us inject things.
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MyPreferencesFragment is an injectable Fragment. Here we actually have Dagger2 provide us an InsulinOrefFreePeakPlugin instance.
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If we use multiple Fragments, we should generate a base-class. Then we only have to add a "provides***Fragment" to the FragmentsModule and derive from that class.
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InsulinOrefFreePeakPlugin is an example how to get things injected via the constructor.
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You could call "new InsulinOrefFreePeakPlugin(new SPImpl(SPImpl(PreferenceManager.getDefaultSharedPreferences(context))), new ResourceHelper())"... but Dagger will resolve that for you in MainApp. :)
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SPImpl is an example how to bind an implementation to an Interface via Dagger.
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ResourceHelper is an example how to generate simple classes that Dagger can auto-resolve how to inject them. No need for a provider here.
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ResourceHelper might have a weak reference at some point and not a static dependency on MainApp... but at least we reduced the static dependencies within a plugin.
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In order to Test: Any dependency of InsulinOrefFreePeakPlugin is passed via the constructor. Instead of static mocking MainApp you now can Mock ResourceHelper with a very small interface.
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