Sysui: Add support for view injection (ea54e8a7) · Commits · e / os / android_frameworks_base

packages/SystemUI/docs/dagger.md

+46 −0

Original line number	Original line	Diff line number	Diff line
	@@ -147,6 +147,52 @@ then the FragmentHostManager can do this for you.
	FragmentHostManager.get(view).create(NavigationBarFragment.class);		FragmentHostManager.get(view).create(NavigationBarFragment.class);
	```		```

			### Using injection with Views

			Generally, you shouldn't need to inject for a view, as the view should
			be relatively self contained and logic that requires injection should be
			moved to a higher level construct such as a Fragment or a top-level SystemUI
			component, see above for how to do injection for both of which.

			Still here? Yeah, ok, sysui has a lot of pre-existing views that contain a
			lot of code that could benefit from injection and will need to be migrated
			off from Dependency#get uses. Similar to how fragments are injected, the view
			needs to be added to the interface
			com.android.systemui.util.InjectionInflationController$ViewInstanceCreator.

			```java
			public interface ViewInstanceCreator {
			+ QuickStatusBarHeader createQsHeader();
			}
			```

			Presumably you need to inflate that view from XML (otherwise why do you
			need anything special? see earlier sections about generic injection). To obtain
			an inflater that supports injected objects, call InjectionInflationController#injectable,
			which will wrap the inflater it is passed in one that can create injected
			objects when needed.

			```java
			@Override
			public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
			Bundle savedInstanceState) {
			return mInjectionInflater.injectable(inflater).inflate(R.layout.my_layout, container, false);
			}
			```

			There is one other important thing to note about injecting with views. SysUI
			already has a Context in its global dagger component, so if you simply inject
			a Context, you will not get the one that the view should have with proper
			theming. Because of this, always ensure to tag views that have @Inject with
			the @Named view context.

			```java
			public CustomView(@Named(VIEW_CONTEXT) Context themedViewContext, AttributeSet attrs,
			OtherCustomDependency something) {
			...
			}
			```

	## TODO List		## TODO List

	- Eliminate usages of Depndency#get		- Eliminate usages of Depndency#get

packages/SystemUI/proguard.flags

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -31,4 +31,7 @@
	-keep class com.android.systemui.fragments.FragmentService$FragmentCreator {		-keep class com.android.systemui.fragments.FragmentService$FragmentCreator {
	*;		*;
	}		}
			-keep class com.android.systemui.util.InjectionInflationController$ViewInstanceCreator {
			*;
			}
	-keep class androidx.core.app.CoreComponentFactory		-keep class androidx.core.app.CoreComponentFactory

packages/SystemUI/src/com/android/systemui/DependencyProvider.java

+0 −2

Original line number	Original line	Diff line number	Diff line
	@@ -33,7 +33,6 @@ import android.os.Process;
	import android.os.ServiceManager;		import android.os.ServiceManager;
	import android.os.UserHandle;		import android.os.UserHandle;
	import android.util.DisplayMetrics;		import android.util.DisplayMetrics;
	import android.util.Log;
	import android.view.IWindowManager;		import android.view.IWindowManager;
	import android.view.WindowManagerGlobal;		import android.view.WindowManagerGlobal;

	@@ -470,7 +469,6 @@ public class DependencyProvider {
	@Singleton		@Singleton
	@Provides		@Provides
	public UiOffloadThread provideUiOffloadThread() {		public UiOffloadThread provideUiOffloadThread() {
	Log.d("TestTest", "provideUiOffloadThread");
	return new UiOffloadThread();		return new UiOffloadThread();
	}		}

packages/SystemUI/src/com/android/systemui/SystemUIFactory.java

+6 −1

packages/SystemUI/src/com/android/systemui/qs/QSFragment.java

+7 −2

Original line number	Original line	Diff line number	Diff line
	@@ -45,6 +45,7 @@ import com.android.systemui.statusbar.CommandQueue;
	import com.android.systemui.statusbar.notification.stack.StackStateAnimator;		import com.android.systemui.statusbar.notification.stack.StackStateAnimator;
	import com.android.systemui.statusbar.phone.NotificationsQuickSettingsContainer;		import com.android.systemui.statusbar.phone.NotificationsQuickSettingsContainer;
	import com.android.systemui.statusbar.policy.RemoteInputQuickSettingsDisabler;		import com.android.systemui.statusbar.policy.RemoteInputQuickSettingsDisabler;
			import com.android.systemui.util.InjectionInflationController;

	import javax.inject.Inject;		import javax.inject.Inject;

	@@ -76,16 +77,20 @@ public class QSFragment extends Fragment implements QS, CommandQueue.Callbacks {
	private boolean mQsDisabled;		private boolean mQsDisabled;

	private final RemoteInputQuickSettingsDisabler mRemoteInputQuickSettingsDisabler;		private final RemoteInputQuickSettingsDisabler mRemoteInputQuickSettingsDisabler;
			private final InjectionInflationController mInjectionInflater;

	@Inject		@Inject
	public QSFragment(RemoteInputQuickSettingsDisabler remoteInputQsDisabler) {		public QSFragment(RemoteInputQuickSettingsDisabler remoteInputQsDisabler,
			InjectionInflationController injectionInflater) {
	mRemoteInputQuickSettingsDisabler = remoteInputQsDisabler;		mRemoteInputQuickSettingsDisabler = remoteInputQsDisabler;
			mInjectionInflater = injectionInflater;
	}		}

	@Override		@Override
	public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,		public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
	Bundle savedInstanceState) {		Bundle savedInstanceState) {
	inflater = inflater.cloneInContext(new ContextThemeWrapper(getContext(), R.style.qs_theme));		inflater = mInjectionInflater.injectable(
			inflater.cloneInContext(new ContextThemeWrapper(getContext(), R.style.qs_theme)));
	return inflater.inflate(R.layout.qs_panel, container, false);		return inflater.inflate(R.layout.qs_panel, container, false);
	}		}