Adapt to the official engine's App Lifecycle state changes. #1952
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Fix the following exception:
══╡ EXCEPTION CAUGHT BY SERVICES LIBRARY ╞══════════════════════════════════════════════════════════
The following assertion was thrown during a platform message callback:
Invalid lifecycle state transition generated from AppLifecycleState.resumed to
AppLifecycleState.detached (generated [AppLifecycleState.detached])
'package:flutter/src/services/binding.dart':
Failed assertion: line 296 pos 12: '(){
AppLifecycleState? starting = previousState;
for (final AppLifecycleState ending in stateChanges) {
if (!_debugVerifyLifecycleChange(starting, ending)) {
return false;
}
starting = ending;
}
return true;
}()'
Either the assertion indicates an error in the framework itself, or we should provide substantially
more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
https://github.com/flutter/flutter/issues/new?template=2_bug.yml
When the exception was thrown, this was the stack:
(elided 4 frames from class _AssertionError and dart:async)
════════════════════════════════════════════════════════════════════════════════════════════════════
See also: flutter/engine#42418
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Fix the following exception:
══╡ EXCEPTION CAUGHT BY SERVICES LIBRARY ╞══════════════════════════════════════════════════════════ The following assertion was thrown during a platform message callback: Invalid lifecycle state transition generated from AppLifecycleState.resumed to AppLifecycleState.detached (generated [AppLifecycleState.detached]) 'package:flutter/src/services/binding.dart':
Failed assertion: line 296 pos 12: '(){
AppLifecycleState? starting = previousState;
for (final AppLifecycleState ending in stateChanges) {
if (!_debugVerifyLifecycleChange(starting, ending)) {
return false;
}
starting = ending;
}
return true;
}()'
Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause. In either case, please report this assertion by filing a bug on GitHub:
https://github.com/flutter/flutter/issues/new?template=2_bug.yml
When the exception was thrown, this was the stack: (elided 4 frames from class _AssertionError and dart:async) ════════════════════════════════════════════════════════════════════════════════════════════════════
See also: flutter/engine#42418