10000 fix(android): nested frames were sometimes not recreated (#9725) · NativeScript/NativeScript@902a4c6 · GitHub
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edusperoniNathanWalker
edusperoni
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NathanWalker
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fix(android): nested frames were sometimes not recreated (#9725)
BREAKING CHANGE: AndroidFragmentCallbacks now requires onResume as well Migration steps: specify onResume on custom fragment implementations
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‎packages/core/ui/frame/fragment.android.ts

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@@ -19,6 +19,10 @@ const FragmentClass = (<any>org.nativescript.widgets.FragmentBase).extend('com.t
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this._callbacks.onPause(this, superProto.onPause);
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},
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onResume(): void {
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this._callbacks.onResume(this, superProto.onResume);
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},
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onCreate(savedInstanceState: android.os.Bundle) {
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if (!this._callbacks) {
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setFragmentCallbacks(this);

‎packages/core/ui/frame/fragment.transitions.android.ts

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@@ -51,6 +51,7 @@ export interface ExpandedEntry extends BackstackEntry {
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frameId: number;
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isNestedDefaultTransition: boolean;
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isAnimationRunning: boolean;
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}
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export function _setAndroidFragmentTransitions(animated: boolean, navigationTransition: NavigationTransition, currentEntry: ExpandedEntry, newEntry: ExpandedEntry, frameId: number, fragmentTransaction: androidx.fragment.app.FragmentTransaction, isNestedDefaultTransition?: boolean): void {
@@ -60,6 +61,7 @@ export function _setAndroidFragmentTransitions(animated: boolean, navigationTran
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if (entries && entries.size > 0) {
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throw new Error('Calling navigation before previous navigation finish.');
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}
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newEntry.isAnimationRunning = false;
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allowTransitionOverlap(currentFragment);
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allowTransitionOverlap(newFragment);
@@ -227,6 +229,7 @@ function getAnimationListener(): android.animation.Animator.AnimatorListener {
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if (Trace.isEnabled()) {
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Trace.write(`START ${animator.transitionType} for ${entry.fragmentTag}`, Trace.categories.Transition);
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}
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entry.isAnimationRunning = true;
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}
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onAnimationRepeat(animator: ExpandedAnimator): void {
@@ -239,13 +242,15 @@ function getAnimationListener(): android.animation.Animator.AnimatorListener {
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if (Trace.isEnabled()) {
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Trace.write(`END ${animator.transitionType} for ${animator.entry.fragmentTag}`, Trace.categories.Transition);
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}
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animator.entry.isAnimationRunning = false;
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transitionOrAnimationCompleted(animator.entry, animator.backEntry);
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}
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onAnimationCancel(animator: ExpandedAnimator): void {
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if (Trace.isEnabled()) {
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Trace.write(`CANCEL ${animator.transitionType} for ${animator.entry.fragmentTag}`, Trace.categories.Transition);
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}
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animator.entry.isAnimationRunning = false;
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}
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}
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‎packages/core/ui/frame/index.android.ts

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@@ -237,6 +237,21 @@ export class Frame extends FrameBase {
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this.backgroundColor = this._originalBackground;
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this._originalBackground = null;
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}
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setTimeout(() => {
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// there's a bug with nested frames where sometimes the nested fragment is not recreated at all
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// so we manually check on loaded event if the fragment is not recreated and recreate it
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const currentEntry = this._currentEntry || this._executingContext?.entry;
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if (currentEntry) {
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if (!currentEntry.fragment) {
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const manager = this._getFragmentManager();
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const transaction = manager.beginTransaction();
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currentEntry.fragment = this.createFragment(currentEntry, currentEntry.fragmentTag);
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_updateTransitions(currentEntry);
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transaction.replace(this.containerViewId, currentEntry.fragment, currentEntry.fragmentTag);
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transaction.commitAllowingStateLoss();
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}
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}
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}, 0);
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super.onLoaded();
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}
@@ -1002,6 +1017,19 @@ class FragmentCallbacksImplementation implements AndroidFragmentCallbacks {
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}
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}
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@profile
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public onResume(fragment: org.nativescript.widgets.FragmentBase, superFunc: Function): void {
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const frame = this.entry.resolvedPage.frame;
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// on some cases during the first navigation on nested frames the animation doesn't trigger
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// we depend on the animation (even None animation) to set the entry as the current entry
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// animation should start between start and resume, so if we have an executing navigation here it probably means the animation was skipped
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// so we manually set the entry
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if (frame._executingContext && !(<any>this.entry).isAnimationRunning) {
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frame.setCurrent(this.entry, frame._executingContext.navigationType);
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}
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superFunc.call(fragment);
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}
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@profile
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public onStop(fragment: androidx.fragment.app.Fragment, superFunc: Function): void {
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superFunc.call(fragment);

‎packages/core/ui/frame/index.d.ts

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@@ -476,6 +476,7 @@ export interface AndroidFragmentCallbacks {
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onDestroyView(fragment: any, superFunc: Function): void;
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onDestroy(fragment: any, superFunc: Function): void;
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onPause(fragment: any, superFunc: Function): void;
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onResume(fragment: any, superFunc: Function): void;
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onStop(fragment: any, superFunc: Function): void;
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toStringOverride(fragment: any, superFunc: Function): string;
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}

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