Question

如何使用按钮更改窗口？

from appJar import gui


def press(btn):

def revision(rvs):
    app = gui("Revision page", "500x200")
    app.setBg("green")
    app.setFont(18)
    app.addLabel("title2", "Please select a topic you would like to rveise")
    app.go()

def menu():
    app = gui("Menu", "500x200")
    app.setBg("green")
    app.setFont(18)
    app.addLabel("title1", "Menu")
    app.addButtons(["Revision", "Quiz", "Progress"], press)
    app.go()
menu()

Answer 1

您无法运行两个appJar实例，而是需要创建子窗口：http://appjar.info/pythonSubWindows/

所以，使用您当前的代码：

from appJar import gui 

def press(btn):
    if btn == "Revision":
        app.showSubWindow("Revision page")


app = gui("Menu", "500x200")
app.setBg("green")
app.setFont(18)
app.addLabel("title1", "Menu")
app.addButtons(["Revision", "Quiz", "Progress"], press)

app.startSubWindow("Revision page", "500x200")
app.setBg("green")
app.setFont(18)
app.addLabel("title2", "Please select a topic you would like to rveise")
app.stopSubWindow()

app.go()

如果使用contextManagers，可以更容易想象：

from appJar import gui

def press(btn):
    app.showSubWindow(btn + " page")

with gui("Menu", "500x200") as app:
    app.setBg("green")
    app.setFont(18)
    app.addLabel("title1", "Menu")
    app.addButtons(["Revision", "Quiz", "Progress"], press)

    with app.subWindow("Revision page", size="500x200"):
        app.addLabel("revTitle", "Please select a topic you would like to rveise")

    with app.subWindow("Quiz page", size="500x200"):
        app.addLabel("quizTitle", "Quiz Page")

    with app.subWindow("Progress page", size="500x200"):
        app.addLabel("progTitle", "Check Progress")

而且，在最新版本中，可以将许多属性设置为参数，并且有添加小部件的新功能：

from appJar import gui

def press(btn):
    app.showSubWindow(btn + " page")

with gui("Menu", "500x200", bg='green', font={'size':18}) as app:
    app.label("Menu")
    app.buttons(["Revision", "Quiz", "Progress"], press)

    with app.subWindow("Revision page", size="500x200", bg='red'):
        app.label("Please select a topic you would like to rveise")

    with app.subWindow("Quiz page", size="500x200", bg='blue'):
        app.label("Quiz Page")

    with app.subWindow("Progress page", size="500x200", bg='orange'):
        app.label("Check Progress")

Appjar：如何使用按钮更改窗口？

1 个答案: