flutter/dev/integration_tests/external_textures/ios/Runner/AppDelegate.m
auto-submit[bot] 88d184dada
Reverts "[Reland] Implements UISceneDelegate dynamically w/ FlutterLaunchEngine (#168396) (#168914)" (#169250)
<!-- start_original_pr_link -->
Reverts: flutter/flutter#168914
<!-- end_original_pr_link -->
<!-- start_initiating_author -->
Initiated by: gaaclarke
<!-- end_initiating_author -->
<!-- start_revert_reason -->
Reason for reverting:
https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_ios%20external_ui_integration_test_ios/16792/overview

The external texture integration test is failing. Running the host app
appeared to work but one of the driver asserts isn't working.
<!-- end_revert_reason -->
<!-- start_original_pr_author -->
Original PR Author: gaaclarke
<!-- end_original_pr_author -->

<!-- start_reviewers -->
Reviewed By: {vashworth}
<!-- end_reviewers -->

<!-- start_revert_body -->
This change reverts the following previous change:
## **BREAKING CHANGE**

Adopting Apple's UISceneDelegate protocol shifts the initialization
order of apps. For the common cases we've made sure they will work
without change. The one case that will require a change is any app that
in `-[UIApplicateDelegate didFinishLaunchingWithOptions:]` assumes that
`UIApplicationDelegate.window.rootViewController` is a
`FlutterViewController` instance. This is sometimes done to register
platform channels directly on the `FlutterViewController`. Instead users
should use the `FlutterPluginRegistry` API's to create platform channels
in `-[UIApplicateDelegate didFinishLaunchingWithOptions:]`, like
`FlutterPlugin`s do.

An example can be seen here:
https://github.com/flutter/flutter/pull/168914/files#diff-9f59c5248b58124beca7e290a57646023cda3ca024607092c6c6932606ce16ee

## Changes since revert
Device lab tests have been migrated to using the FlutterPlugin API for
creating platform channels at process launch.

## Description
fixes: https://github.com/flutter/flutter/issues/167267

design doc:

https://docs.google.com/document/d/1ZfcQOs-UKRa9jsFG84-MTFeibZTLKCvPQLxF2eskx44/edit?tab=t.0

relands https://github.com/flutter/flutter/pull/168396

## Pre-launch Checklist

- [x] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [x] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [x] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [x] I signed the [CLA].
- [x] I listed at least one issue that this PR fixes in the description
above.
- [x] I updated/added relevant documentation (doc comments with `///`).
- [x] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [x] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [x] All existing and new tests are passing.

<!-- end_revert_body -->

Co-authored-by: auto-submit[bot] <flutter-engprod-team@google.com>
2025-05-22 03:32:21 +00:00

77 lines
3.0 KiB
Objective-C

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "AppDelegate.h"
@interface AppDelegate ()
@property (atomic) uint64_t textureId;
@property (atomic) int framesProduced;
@property (atomic) int framesConsumed;
@property (atomic) int lastFrameConsumed;
@property (atomic) double startTime;
@property (atomic) double endTime;
@property (atomic) double frameRate;
@property (atomic) double frameStartTime;
@property (atomic) NSTimer* timer;
- (void)tick:(NSTimer*)timer;
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
FlutterViewController* flutterController =
(FlutterViewController*)self.window.rootViewController;
FlutterMethodChannel* channel =
[FlutterMethodChannel methodChannelWithName:@"texture"
binaryMessenger:flutterController];
[channel setMethodCallHandler:^(FlutterMethodCall* call, FlutterResult result) {
if ([@"start" isEqualToString:call.method]) {
_framesProduced = 0;
_framesConsumed = 0;
_frameRate = 1.0 / [(NSNumber*) call.arguments intValue];
_timer = [NSTimer scheduledTimerWithTimeInterval:_frameRate
target:self
selector:@selector(tick:)
userInfo:nil
repeats:YES];
_startTime = [[NSDate date] timeIntervalSince1970];
result(nil);
} else if ([@"stop" isEqualToString:call.method]) {
[_timer invalidate];
_endTime = [[NSDate date] timeIntervalSince1970];
result(nil);
} else if ([@"getProducedFrameRate" isEqualToString:call.method]) {
result(@(_framesProduced / (_endTime - _startTime)));
} else if ([@"getConsumedFrameRate" isEqualToString:call.method]) {
result(@(_framesConsumed / (_endTime - _startTime)));
} else {
result(FlutterMethodNotImplemented);
}
}];
_textureId = [flutterController registerTexture:self];
return [super application:application didFinishLaunchingWithOptions:launchOptions];
}
- (void)tick:(NSTimer*)timer {
FlutterViewController* flutterController =
(FlutterViewController*)self.window.rootViewController;
[flutterController textureFrameAvailable:_textureId];
_frameStartTime = [[NSDate date] timeIntervalSince1970];
// We just pretend to be producing a frame.
_framesProduced++;
}
- (CVPixelBufferRef)copyPixelBuffer {
double now = [[NSDate date] timeIntervalSince1970];
if (now < _frameStartTime
|| _frameStartTime + _frameRate < now
|| _framesProduced == _lastFrameConsumed) return nil;
_framesConsumed++;
_lastFrameConsumed = _framesProduced;
// We just pretend to be handing over the produced frame to the consumer.
return nil;
}
@end