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feature: add GroupSceneCompatUtility, provides the ability to bind Gr…
…oupScene to Fragment directly
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39 changes: 39 additions & 0 deletions
39
demo/src/main/java/com/bytedance/scenedemo/migrate/GroupSceneBindToFragmentSample.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,39 @@ | ||
| package com.bytedance.scenedemo.migrate | ||
|
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| import android.os.Bundle | ||
| import android.support.v4.app.Fragment | ||
| import android.support.v7.app.AppCompatActivity | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import android.widget.FrameLayout | ||
| import com.bytedance.scene.GroupSceneDelegate | ||
| import com.bytedance.scene.ui.GroupSceneCompatUtility | ||
| import com.bytedance.scene.utlity.ViewIdGenerator | ||
| import com.bytedance.scenedemo.group.viewpager.ViewPagerSample | ||
|
|
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| /** | ||
| * Created by JiangQi on 9/5/18. | ||
| */ | ||
| class GroupSceneBindToFragmentSample : AppCompatActivity() { | ||
| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
| supportFragmentManager.beginTransaction().add(android.R.id.content, AFragment()).commitNow() | ||
| } | ||
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|
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| class AFragment : Fragment() { | ||
| private val viewId = ViewIdGenerator.generateViewId() | ||
| private var delegate: GroupSceneDelegate? = null | ||
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|
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| override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? { | ||
| val frameLayout = FrameLayout(activity!!) | ||
| frameLayout.id = viewId | ||
| return frameLayout | ||
| } | ||
|
|
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| override fun onViewCreated(view: View, savedInstanceState: Bundle?) { | ||
| super.onViewCreated(view, savedInstanceState) | ||
| delegate = GroupSceneCompatUtility.setupWithFragment(this, ViewPagerSample::class.java, viewId).build() | ||
| } | ||
| } | ||
| } |
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208 changes: 208 additions & 0 deletions
208
library/scene_ui/src/main/java/com/bytedance/scene/ui/GroupSceneCompatUtility.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,208 @@ | ||
| /* | ||
| * Copyright (C) 2019 ByteDance Inc | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.bytedance.scene.ui; | ||
|
|
||
| import android.os.Bundle; | ||
| import android.support.annotation.IdRes; | ||
| import android.support.annotation.NonNull; | ||
| import android.support.annotation.Nullable; | ||
| import android.support.v4.app.Fragment; | ||
| import android.support.v4.app.FragmentManager; | ||
| import android.support.v4.app.FragmentTransaction; | ||
| import android.view.View; | ||
| import com.bytedance.scene.*; | ||
| import com.bytedance.scene.group.GroupScene; | ||
| import com.bytedance.scene.utlity.SceneInstanceUtility; | ||
| import com.bytedance.scene.utlity.ThreadUtility; | ||
| import com.bytedance.scene.utlity.Utility; | ||
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|
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| import java.util.HashSet; | ||
| import java.util.WeakHashMap; | ||
|
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| public class GroupSceneCompatUtility { | ||
| private GroupSceneCompatUtility() { | ||
| } | ||
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| public static final class Builder { | ||
| @NonNull | ||
| private final Fragment mFragment; | ||
| @NonNull | ||
| private final Class<? extends GroupScene> mRootSceneClazz; | ||
| @Nullable | ||
| private Bundle mRootSceneArguments; | ||
| @IdRes | ||
| private final int mIdRes; | ||
| private boolean mSupportRestore = false; | ||
| @Nullable | ||
| private SceneComponentFactory mRootSceneComponentFactory; | ||
| @NonNull | ||
| private String mTag = NavigationSceneCompatUtility.LIFE_CYCLE_FRAGMENT_TAG; | ||
| private boolean mImmediate = true; | ||
|
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| private Builder(@NonNull Fragment fragment, @NonNull Class<? extends GroupScene> rootSceneClazz, @IdRes int containerId) { | ||
| this.mFragment = Utility.requireNonNull(fragment, "Fragment can't be null"); | ||
| this.mRootSceneClazz = Utility.requireNonNull(rootSceneClazz, "Root Scene class can't be null"); | ||
| this.mIdRes = containerId; | ||
| } | ||
|
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| @NonNull | ||
| public GroupSceneCompatUtility.Builder rootSceneArguments(@Nullable Bundle rootSceneArguments) { | ||
| this.mRootSceneArguments = rootSceneArguments; | ||
| return this; | ||
| } | ||
|
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| @NonNull | ||
| public GroupSceneCompatUtility.Builder supportRestore(boolean supportRestore) { | ||
| this.mSupportRestore = supportRestore; | ||
| return this; | ||
| } | ||
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| @NonNull | ||
| public GroupSceneCompatUtility.Builder rootSceneComponentFactory(@Nullable SceneComponentFactory rootSceneComponentFactory) { | ||
| this.mRootSceneComponentFactory = rootSceneComponentFactory; | ||
| return this; | ||
| } | ||
|
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| @NonNull | ||
| public GroupSceneCompatUtility.Builder tag(@NonNull String tag) { | ||
| this.mTag = Utility.requireNonNull(tag, "Tag can't be null"); | ||
| return this; | ||
| } | ||
|
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| @NonNull | ||
| public GroupSceneCompatUtility.Builder immediate(boolean immediate) { | ||
| this.mImmediate = immediate; | ||
| return this; | ||
| } | ||
|
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| @NonNull | ||
| public GroupSceneDelegate build() { | ||
| return setupWithFragment(this.mFragment, this.mIdRes, this.mRootSceneClazz, this.mRootSceneArguments, this.mRootSceneComponentFactory, this.mSupportRestore, this.mTag, this.mImmediate); | ||
| } | ||
| } | ||
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| @NonNull | ||
| public static GroupSceneCompatUtility.Builder setupWithFragment(@NonNull final Fragment fragment, | ||
| @NonNull Class<? extends GroupScene> rootScene, | ||
| @IdRes int containerId) { | ||
| return new GroupSceneCompatUtility.Builder(fragment, rootScene, containerId); | ||
| } | ||
|
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| @NonNull | ||
| private static GroupSceneDelegate setupWithFragment(@NonNull final Fragment fragment, | ||
| @IdRes int containerId, | ||
| @NonNull Class<? extends Scene> sceneClazz, | ||
| @Nullable Bundle sceneArguments, | ||
| @Nullable SceneComponentFactory rootSceneComponentFactory, | ||
| final boolean supportRestore, | ||
| @NonNull final String tag, | ||
| final boolean immediate) { | ||
| ThreadUtility.checkUIThread(); | ||
| if (tag == null) { | ||
| throw new IllegalArgumentException("tag cant be null"); | ||
| } | ||
| NavigationSceneCompatUtility.checkDuplicateTag(fragment, tag); | ||
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| final FragmentManager fragmentManager = fragment.getChildFragmentManager(); | ||
| LifeCycleCompatFragment lifeCycleFragment = (LifeCycleCompatFragment) fragmentManager.findFragmentByTag(tag); | ||
| if (lifeCycleFragment != null && !supportRestore) { | ||
| FragmentTransaction transaction = fragmentManager.beginTransaction(); | ||
| transaction.remove(lifeCycleFragment); | ||
| FragmentUtility.commitFragment(transaction, immediate); | ||
| lifeCycleFragment = null; | ||
| } | ||
|
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| ViewFinder viewFinder = new FragmentViewFinder(fragment); | ||
| GroupScene groupScene = null; | ||
| if (rootSceneComponentFactory != null) { | ||
| groupScene = (GroupScene) rootSceneComponentFactory.instantiateScene(fragment.getClass().getClassLoader(), sceneClazz.getName(), sceneArguments); | ||
| } | ||
| if (groupScene == null) { | ||
| groupScene = (GroupScene) SceneInstanceUtility.getInstanceFromClass(sceneClazz, sceneArguments); | ||
| } | ||
|
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| ScopeHolderCompatFragment targetScopeHolderFragment = null; | ||
| SceneLifecycleDispatcher<GroupScene> dispatcher = null; | ||
| if (lifeCycleFragment != null) { | ||
| final ScopeHolderCompatFragment scopeHolderFragment = ScopeHolderCompatFragment.install(fragment, tag, false, immediate); | ||
| targetScopeHolderFragment = scopeHolderFragment; | ||
|
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| dispatcher = new SceneLifecycleDispatcher<>(containerId, viewFinder, groupScene, scopeHolderFragment, supportRestore); | ||
| lifeCycleFragment.setSceneContainerLifecycleCallback(dispatcher); | ||
| } else { | ||
| final ScopeHolderCompatFragment scopeHolderFragment = ScopeHolderCompatFragment.install(fragment, tag, !supportRestore, immediate); | ||
| lifeCycleFragment = LifeCycleCompatFragment.newInstance(supportRestore); | ||
|
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| dispatcher = new SceneLifecycleDispatcher<>(containerId, viewFinder, groupScene, scopeHolderFragment, supportRestore); | ||
| lifeCycleFragment.setSceneContainerLifecycleCallback(dispatcher); | ||
|
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| FragmentTransaction transaction = fragmentManager.beginTransaction(); | ||
| transaction.add(containerId, lifeCycleFragment, tag); | ||
| FragmentUtility.commitFragment(transaction, immediate); | ||
| targetScopeHolderFragment = scopeHolderFragment; | ||
| } | ||
|
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| final LifeCycleCompatFragment finalLifeCycleFragment = lifeCycleFragment; | ||
| final ScopeHolderCompatFragment finalTargetScopeHolderFragment = targetScopeHolderFragment; | ||
| final GroupScene finalGroupScene = groupScene; | ||
| final GroupSceneDelegate proxy = new GroupSceneDelegate() { | ||
| private boolean mAbandoned = false; | ||
|
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| @Nullable | ||
| @Override | ||
| public GroupScene getGroupScene() { | ||
| if (this.mAbandoned) { | ||
| return null; | ||
| } | ||
| return finalGroupScene; | ||
| } | ||
|
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| @Override | ||
| public void abandon() { | ||
| if (this.mAbandoned) { | ||
| return; | ||
| } | ||
| this.mAbandoned = true; | ||
| final View view = finalGroupScene.getView(); | ||
| FragmentTransaction transaction = fragmentManager.beginTransaction().remove(finalLifeCycleFragment).remove(finalTargetScopeHolderFragment); | ||
| if (immediate) { | ||
| fragmentManager.registerFragmentLifecycleCallbacks(new FragmentManager.FragmentLifecycleCallbacks() { | ||
| @Override | ||
| public void onFragmentDetached(FragmentManager fm, Fragment f) { | ||
| super.onFragmentDetached(fm, f); | ||
| if (f != finalLifeCycleFragment) { | ||
| return; | ||
| } | ||
| fragmentManager.unregisterFragmentLifecycleCallbacks(this); | ||
| NavigationSceneCompatUtility.removeTag(fragment, tag); | ||
| } | ||
| }, false); | ||
| FragmentUtility.commitFragment(transaction, true); | ||
| if (view != null) { | ||
| Utility.removeFromParentView(view); | ||
| } | ||
| } else { | ||
| FragmentUtility.commitFragment(transaction, false); | ||
| NavigationSceneCompatUtility.removeTag(fragment, tag); | ||
| if (view != null) { | ||
| Utility.removeFromParentView(view); | ||
| } | ||
| } | ||
| } | ||
| }; | ||
| return proxy; | ||
| } | ||
| } |
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