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Add support for activity scoped navigation request handlers
This gives more flexibility for applications that follows a complex UI design
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94 changes: 94 additions & 0 deletions
94
...id/lib/src/main/java/com/ern/api/impl/navigation/ElectrodeNavigationActivityDelegate.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| package com.ern.api.impl.navigation; | ||
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| import android.os.Bundle; | ||
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| import androidx.annotation.NonNull; | ||
| import androidx.annotation.Nullable; | ||
| import androidx.fragment.app.Fragment; | ||
| import androidx.fragment.app.FragmentActivity; | ||
| import androidx.lifecycle.Lifecycle; | ||
| import androidx.lifecycle.Observer; | ||
| import androidx.lifecycle.OnLifecycleEvent; | ||
| import androidx.lifecycle.ViewModelProvider; | ||
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| import com.ern.api.impl.core.ElectrodeBaseActivityDelegate; | ||
| import com.ern.api.impl.core.LaunchConfig; | ||
| import com.walmartlabs.electrode.reactnative.bridge.helpers.Logger; | ||
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| public class ElectrodeNavigationActivityDelegate extends ElectrodeBaseActivityDelegate<NavigationLaunchConfig> { | ||
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| private static final String TAG = ElectrodeNavigationActivityDelegate.class.getSimpleName(); | ||
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| @Nullable | ||
| private ReactNavigationViewModel mNavViewModel; | ||
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| /** | ||
| * @param activity Hosting activity | ||
| * @param rootComponentName First react native component to be launched. | ||
| * @param defaultLaunchConfig : {@link LaunchConfig} that acts as the the initial configuration to load the rootComponent as well as the default launch config for subsequent navigation flows. | ||
| * This configuration will also be used as a default configuration when the root component tries to navigate to a new pages if a proper launch config is passed inside {@link #startMiniAppFragment(String, LaunchConfig)}. | ||
| */ | ||
| public ElectrodeNavigationActivityDelegate(@NonNull FragmentActivity activity, @Nullable String rootComponentName, @NonNull NavigationLaunchConfig defaultLaunchConfig) { | ||
| super(activity, rootComponentName, defaultLaunchConfig); | ||
| } | ||
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| @Override | ||
| public void onCreate(Bundle savedInstanceState) { | ||
| if (mDefaultLaunchConfig.mUseActivityScopedNavigation) { | ||
| registerNavRequestHandler(); | ||
| } | ||
| super.onCreate(savedInstanceState); | ||
| } | ||
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| @OnLifecycleEvent(Lifecycle.Event.ON_RESUME) | ||
| @Override | ||
| public void onResume() { | ||
| super.onResume(); | ||
| if (mDefaultLaunchConfig.mUseActivityScopedNavigation && mNavViewModel != null) { | ||
| mNavViewModel.registerNavRequestHandler(); | ||
| } | ||
| } | ||
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| @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE) | ||
| @Override | ||
| public void onPause() { | ||
| super.onPause(); | ||
| if (mDefaultLaunchConfig.mUseActivityScopedNavigation && mNavViewModel != null) { | ||
| mNavViewModel.unRegisterNavRequestHandler(); | ||
| } | ||
| } | ||
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| private void registerNavRequestHandler() { | ||
| mNavViewModel = new ViewModelProvider(mFragmentActivity, new ViewModelProvider.NewInstanceFactory()).get(ReactNavigationViewModel.class); | ||
| mNavViewModel.getRouteLiveData().observe(mFragmentActivity, new Observer<Route>() { | ||
| @Override | ||
| public void onChanged(Route route) { | ||
| Logger.d(TAG, "Navigation request handled by Activity(%s)", mFragmentActivity); | ||
| NavigationRouteHandler routeHandler = null; | ||
| if (mDefaultLaunchConfig.mRouteHandlerProvider != null && mDefaultLaunchConfig.mRouteHandlerProvider.getRouteHandler() != null) { | ||
| Logger.v(TAG, "Getting route handler via RouteHandlerProvider"); | ||
| routeHandler = mDefaultLaunchConfig.mRouteHandlerProvider.getRouteHandler(); | ||
| } else { | ||
| Fragment f = mFragmentActivity.getSupportFragmentManager().findFragmentById(mDefaultLaunchConfig.getFragmentContainerId()); | ||
| if (f instanceof NavigationRouteHandler) { | ||
| Logger.v(TAG, "Getting fragment(route handler) hosted inside getFragmentContainer of activity"); | ||
| routeHandler = (NavigationRouteHandler) f; | ||
| } else { | ||
| Logger.w(TAG, "Fragment: %s is not a NavigationRouteHandler", f); | ||
| } | ||
| } | ||
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| if (routeHandler != null) { | ||
| routeHandler.handleRoute(route); | ||
| } else { | ||
| throw new IllegalStateException("Should never reach here. Missing route handler"); | ||
| } | ||
| } | ||
| }); | ||
| mNavViewModel.registerNavRequestHandler(); | ||
| } | ||
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| protected boolean fragmentScopedNavModel() { | ||
| return !mDefaultLaunchConfig.mUseActivityScopedNavigation; | ||
| } | ||
| } |
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