flutter - Flutter推出新的独立屏幕(Flutter launch new independent screen)

Question

I am having trouble launching new screen widget.

(我无法启动新的屏幕小部件。)

I have main.dart where I am using bottomNavigationBar and body for ViewPager UI.

(我有main.dart，其中我在ViewPager UI中使用bottomNavigationBar和body。)

Now I have 3 bottom tabs and when I go to 2nd tab's view and click on a button to launch another screen/view using:

(现在我有3个底部标签，当我进入第二个标签的视图并单击一个按钮以启动另一个屏幕/视图时，使用：)

onTap: () => Navigator.of(context).push(
                 MaterialPageRoute(
                     builder: (context) => ViewMyContactList(),
                 ),
            )

the new screen replaces the 2nd tab's view, when I go to 3rd tab then come back to 2nd tab, the new screen is gone and 2nd tab's initial screen is back.

(新屏幕替换了第二个选项卡的视图，当我转到第三个选项卡然后返回到第二个选项卡时，新屏幕消失了，第二个选项卡的初始屏幕返回了。)

Also when new screen replaces the 2nd screen's initial view and when I do system back press in Android, the app exits straightaway.

(同样，当新屏幕替换第二屏幕的初始视图时，当我在Android中进行系统后按时，该应用程序将立即退出。)

  ask by rohitpaniker translate from so

Answer 1

等待大神答复