3.需要使用AnimateView#xff0c;请看我上一篇博客。

演示#xff1a;

package:flutter/cupertino.dart;///栈#xff0c;先进后出

class

package:flutter/cupertino.dart;///栈先进后出

class

_stack.removeLast();}}///栈长度length()

{return

package:flutter/cupertino.dart;

import

package:kq_flutter_widgets/widgets/animate/animate_view.dart;

import

package:kq_flutter_widgets/widgets/stackview/stack.dart;class

StackView

initChild;///state回调。

获取state后方便后续界面操作。

final

void

this.initChild,this.stateCallback,});overrideStateStatefulWidget

createState()

{super.initState();_currentWidget

widget.initChild;widget.stateCallback?.call(this);}overrideWidget

build(BuildContext

TranslationAnimateDirection.bottomToTop.angle,type:

TranslationAnimateType.translateIn),child:

_currentWidget!,):

TranslationAnimateDirection.topToBottom.angle,type:

TranslationAnimateType.translateOut),child:

_currentWidget!,);}

TranslationAnimateDirection.bottomToTop.angle,type:

TranslationAnimateType.translateOut),isNeedFlashEveryTime:

true,child:

_previousWidget!,),AnimateView(animate:

TranslationAnimateDirection.bottomToTop.angle,type:

TranslationAnimateType.translateIn),isNeedFlashEveryTime:

true,child:

TranslationAnimateDirection.topToBottom.angle,type:

TranslationAnimateType.translateOut),isNeedFlashEveryTime:

true,child:

_previousWidget!,),AnimateView(animate:

TranslationAnimateDirection.topToBottom.angle,type:

TranslationAnimateType.translateIn),isNeedFlashEveryTime:

true,child:

_currentWidget!,),],);}}addWidget(Widget

page)

{_stack.push(_previousWidget!);}print(stack

size${_stack.length()});setState(()

返回true表示成功返回上一级///返回false表示返回失败已是最后一个界面不可继续返回。

bool

back()

size${_stack.length()});setState(()

{});if

{super.dispose();_stack.clear();}

}demo:

package:kq_flutter_widgets/widgets/button/kq_small_button.dart;

import

package:kq_flutter_widgets/widgets/stackview/stack_view.dart;

import

package:kq_flutter_widgets/widgets/titleBar/kq_title_bar.dart;class

StackViewDemo

StackViewDemo({super.key});overrideStateStatefulWidget

createState()

Text(我是首页),KqSmallButton(title:

打开新页面,onTap:

{state?.addWidget(TestPage1(state:

Container(color:

Colors.purple,)),],),stateCallback:

(StackViewState

Text(我是TestPage1),KqSmallButton(title:

返回,onTap:

{state.back();},),KqSmallButton(title:

打开新页面,onTap:

{state.addWidget(TestPage2(state:

Container(color:

Text(我是TestPage2),KqSmallButton(title:

返回,onTap:

{state.back();},),KqSmallButton(title:

打开新页面,onTap:

{state.addWidget(TestPage3(state:

Container(color:

Text(我是TestPage3),KqSmallButton(title:

返回,onTap:

{state.back();},),Expanded(child:

Container(color: