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李增强
flutter_boost_1.22.4
Commits
79a84a43
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79a84a43
authored
Dec 26, 2019
by
Jim
Committed by
GitHub
Dec 26, 2019
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Frequently Asked Question.md
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79a84a43
...
@@ -23,9 +23,21 @@ bool isTopContainer = FlutterBoost.BoostContainer.of(context).onstage
...
@@ -23,9 +23,21 @@ bool isTopContainer = FlutterBoost.BoostContainer.of(context).onstage
### 您好,我想请教一下flutter_boost有关的问题:ABC三个都是flutter页面,从 A页面 -> B页面 -> C页面,当打开C页面时希望自动关掉B页面,当从C页面返回时直接返回A页面,可有什么方法?
### 您好,我想请教一下flutter_boost有关的问题:ABC三个都是flutter页面,从 A页面 -> B页面 -> C页面,当打开C页面时希望自动关掉B页面,当从C页面返回时直接返回A页面,可有什么方法?
回答:你只需要操作Native层的UINavigationController里的vc数组就可以了。就如同平时你操作普通的UIViewController一样。因为FlutterBoost对Native层的FlutterViewController和Dart层的flutter page的生命周期管理是一致的,当FlutterViewController被销毁,其在dart层管理的flutter page也会自动被销毁。
回答:你只需要操作Native层的UINavigationController里的vc数组就可以了。就如同平时你操作普通的UIViewController一样。因为FlutterBoost对Native层的FlutterViewController和Dart层的flutter page的生命周期管理是一致的,当FlutterViewController被销毁,其在dart层管理的flutter page也会自动被销毁。
### 在ios中voice over打开,demo在点击交互会crash
### 在ios中voice over打开,demo在点击交互会crash
;
回答:无障碍模式下目前Flutter Engine有bug,已经提交issue和PR给flutter啦。请参考这个issue:https://github.com/alibaba/flutter_boost/issues/488及其分析。提交给flutter的PR见这里:https://github.com/flutter/engine/pull/14155
回答:无障碍模式下目前Flutter Engine有bug,已经提交issue和PR给flutter啦。请参考这个issue:https://github.com/alibaba/flutter_boost/issues/488及其分析。提交给flutter的PR见这里:https://github.com/flutter/engine/pull/14155
### 在ios模拟器下运行最新的flutter boost会闪退
回答:因为模拟器下flutter默认会将voice over模式打开,所以其实就是辅助模式,这回触发上面的bug:“在ios中voice over打开,demo在点击交互会crash”。
可参考Engine的代码注释:
```
c++
#if TARGET_OS_SIMULATOR
// There doesn't appear to be any way to determine whether the accessibility
// inspector is enabled on the simulator. We conservatively always turn on the
// accessibility bridge in the simulator, but never assistive technology.
platformView
->
SetSemanticsEnabled
(
true
);
platformView
->
SetAccessibilityFeatures
(
flags
);
```
### 似乎官方已经提供了混合栈的功能,参考这里:https://flutter.dev/docs/development/add-to-app; FlutterBoost是否有存在的必要?
### 似乎官方已经提供了混合栈的功能,参考这里:https://flutter.dev/docs/development/add-to-app; FlutterBoost是否有存在的必要?
回答:官方的解决方案仅仅是在native侧对FlutterViewController和Flutterengine进行解耦,如此可以一个FlutterEngine切换不同的FlutterViewController或者Activity进行渲染。但其并未解决Native和Flutter页面混合的问题,无法保证两侧的页面生命周期一致。即使是Flutter官方针对这个问题也是建议使用FlutterBoost。
回答:官方的解决方案仅仅是在native侧对FlutterViewController和Flutterengine进行解耦,如此可以一个FlutterEngine切换不同的FlutterViewController或者Activity进行渲染。但其并未解决Native和Flutter页面混合的问题,无法保证两侧的页面生命周期一致。即使是Flutter官方针对这个问题也是建议使用FlutterBoost。
其差别主要有:
其差别主要有:
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