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Platform channel for predictive back #39208

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justinmc merged 22 commits into from
Jun 9, 2023
Merged

Platform channel for predictive back #39208

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9b25e71
Log everywhere I see onBackPressed... And it doesn't log anything!
justinmc Jan 27, 2023
b10efe3
Just hackily remove all usage of onBack, and predictive back does wor…
justinmc Jan 27, 2023
75d8e38
Undid all of the commenting and deleting and located the one call tha…
justinmc Jan 27, 2023
e8a5130
No logging verbose
justinmc Jan 27, 2023
9c0e7cc
WIP A platform channel API to declare that the nav stack is empty
justinmc Jan 28, 2023
205d1e5
navigationStackIsEmpty method to enable predictive back
justinmc Feb 1, 2023
66d1f84
Migrate to updateNavigationStackStatus, works for inner routes
justinmc Feb 9, 2023
9e8e230
Clean up logs and todos
justinmc Feb 9, 2023
0ed2bec
Rename hasMultiple to frameworkHandlesPop for clarity
justinmc Mar 7, 2023
2afbbad
Merge branch 'main' into predictive-back-root
justinmc Mar 7, 2023
8aeba57
Analyzer fix
justinmc Mar 7, 2023
5e89211
WIP some debugging
justinmc Apr 7, 2023
015f2a5
Merge branch 'main' into predictive-back-root
justinmc Apr 7, 2023
b7b2f17
Merge branch 'main' into predictive-back-root
justinmc May 12, 2023
6bc7d5e
Rename to frameworkHandlesBacks
justinmc May 26, 2023
01a22a2
Clean up
justinmc May 26, 2023
6f22009
Confirmed that it works on my old (API 24) samsung device
justinmc May 26, 2023
440a6ee
I dont think I need to modify flutterfragment(activity)
justinmc May 30, 2023
e075275
Tests and empty implementation for FlutterFragment
justinmc Jun 2, 2023
af98e2c
Merge remote-tracking branch 'upstream/main' into predictive-back-root
justinmc Jun 5, 2023
1db22e5
More specific name for hasRegisteredCallback
justinmc Jun 7, 2023
4701d66
Backs to Back
justinmc Jun 7, 2023
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Clean up
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@justinmc
justinmc committed May 26, 2023
commit 01a22a235c219c2816ee077cf5ef7cfe78be5ceb
5 changes: 0 additions & 5 deletions shell/platform/android/io/flutter/embedding/android/FlutterActivity.java
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Original file line number Diff line number Diff line change
Expand Up @@ -697,9 +697,6 @@ public void unregisterOnBackInvokedCallback() {
@SuppressWarnings("Override")
@Override
public void onBackInvoked() {
Log.e(
"justin",
"calling onBackPressed in onBackInvokedCallback in FlutterActivity (embedder)");
onBackPressed();
}
}
Expand All @@ -710,10 +707,8 @@ public void onBackInvoked() {
@Override
public void setFrameworkHandlesBacks(boolean frameworkHandlesBacks) {
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@justinmc justinmc Jun 5, 2023

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How do people feel about this name?

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@goderbauer goderbauer Jun 5, 2023

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suggestion: setFrameworkHandlesBack (without the plural s)?

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@camsim99 camsim99 Jun 5, 2023

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Maybe something to indicate it registers/unregisters a callback based on frameworkHandlesBacks since it isn't actually setting that, e.g. toggleOnBackRegistry?

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@justinmc justinmc Jun 7, 2023

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I'm going to go with setFrameworkHandlesBack for now.

I kind of wanted to be generic about what is actually happening under the hood in case that changes, or in case we ever needed to do this on another platform that handles it differently. I think setFrameworkHandlesBack works well enough since it at least sounds declarative, like it's setting some state that decides what should happen to back gestures.

Let me know if anyone has other thoughts though.

if (frameworkHandlesBacks && !hasRegisteredCallback) {
Log.e("justin", "Stopping predictive back");
registerOnBackInvokedCallback();
} else if (!frameworkHandlesBacks && hasRegisteredCallback) {
Log.e("justin", "Enabling predictive back");
unregisterOnBackInvokedCallback();
}
}
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1 change: 0 additions & 1 deletion shell/platform/android/io/flutter/plugin/platform/PlatformPlugin.java
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Expand Up @@ -492,7 +492,6 @@ private void popSystemNavigator() {
return;
}

// TODO(justinmc): Will this ever interfer with predictive back?
if (activity instanceof OnBackPressedDispatcherOwner) {
((OnBackPressedDispatcherOwner) activity).getOnBackPressedDispatcher().onBackPressed();
} else {
Expand Down