Question

在我的QML GUI中，对象是在运行时由JavaScript创建的。如何访问这些动态创建的对象的属性。 QML手册（http://doc.qt.io/archives/qt-4.8/qdeclarativedynamicobjects.html）中没有关于此的信息

我的traget ID在创建后更改属性，并将其存储在Qt.labs.settings中，以便我的程序保存创建的对象并可以在启动时再次创建这些对象。

使用CreateSquareGaugeScript.createRect（）创建对象是可行的，但此后我找不到找到其属性的方法。

按要求提供我的简短示例。

main.cpp：

import sys,time,random
global enemyhp
global playerhp


print("""
░░ ▄▄ ▒█▀▀█ ▒█▀▀█ ▒█▀▀█ 　 ▀▀█▀▀ ▒█░▒█ ▀█▀ ▒█▄░▒█ ▒█▀▀█ ▒█▀▀▀█ ▄▄ ░░ 
▀▀ ▄▄ ▒█▄▄▀ ▒█▄▄█ ▒█░▄▄ 　 ░▒█░░ ▒█▀▀█ ▒█░ ▒█▒█▒█ ▒█░▄▄ ▒█░░▒█ ▄▄ ▀▀ 
░░ ░░ ▒█░▒█ ▒█░░░ ▒█▄▄█ 　 ░▒█░░ ▒█░▒█ ▄█▄ ▒█░░▀█ ▒█▄▄█ ▒█▄▄▄█ ░░ ░░ 

                RPG BATTLE THINGY-WINGO

""")

monstertypes = ["BATTY McBATFACE", "SKELETON", "BOSS BAT", "SUPER SKELETON"]
playerhp = 100

#set ID of the attacker
monstername = random.choice(monstertypes)
if monstername == "BATTY McBATFACE":
    enemyhp = 10
elif monstername == "SKELETON":
    enemyhp = 25
elif monstername == "BOSS BAT":
    enemyhp = 50
elif monstername == "SUPER SKELETON":
    enemyhp = 80


typing_speed = 50 #wpm
def slow_type(t, d):
    for l in t:
        sys.stdout.write(l)
        sys.stdout.flush()
        if d == "":
          d = 1
        time.sleep(d / 10)
    print("")


def attack():
    print("You attack the", monstername + "!")
    attackdmg = random.randint(5, 20)
    time.sleep(1)
    if not random.randint(1, 4) == 4:
        enemyhp = enemyhp - attackdmg
        if attackdmg >= 15:
            slow_type("THWACK!", 0.5)
            print(attackdmg, "HP of critical damage to the", monstername + "!")
        elif attackdmg >= enemyhp:
            time.sleep(0.5)
            slow_type("KAPOW!", 0.5)
            print(attackdmg, "HP of mortal damage to the", monstername + "!")
        else:
            time.sleep(0.5)
            print(attackdmg, "HP of damage to the", monstername + "!")

    else:
        print("The attack missed!")


approachmsg = ["drew near!", "is in the way!" "attacks!", "approaches...", "wants to fight!", "bumped into you!"]
print(monstername, random.choice(approachmsg))
fighting = True

while fighting:
    print("Do you Fight or Run?")
    battlecommand = input()

    if battlecommand == "Fight" or battlecommand == "fight":
        attack()
    elif battlecommand == "Run" or battlecommand == "run":
        canrun = random.choice([True, False])
        slow_type(". . .", 5)
        if canrun:

            fighting = False
        else:
            print("couldn't get away...")
    else:
      print("please type a valid command!")
if playerhp < 1:
    print("""
█▀▀▀ █▀▀█ █▀▄▀█ █▀▀   █▀▀█ ▀█░█▀ █▀▀ █▀▀█
█░▀█ █▄▄█ █░▀░█ █▀▀   █░░█ ░█▄█░ █▀▀ █▄▄▀
▀▀▀▀ ▀░░▀ ▀░░░▀ ▀▀▀   ▀▀▀▀ ░░▀░░ ▀▀▀ ▀░▀▀
    """)
else:
  slow_type("you escaped!", 0.2)

创建的对象：

    import QtQuick 2.9
    import QtQuick.Window 2.2
    import QtQuick.Controls 2.0
    import "qrc:/script.js" as MyScript

    Window {
        id: mainWindow
        visible: true
        width: 640
        height: 480
        title: qsTr("Hello World")

        Button {
            id: button
            x: 540
            y: 0
            text: qsTr("Button")
            onClicked: MyScript.createRect()
        }

    }

main.qml

import QtQuick 2.9
import QtQuick.Window 2.2
import QtQuick.Controls 2.0
import "qrc:/script.js" as MyScript

Window {
    id: mainWindow
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    Button {
        id: button
        x: 540
        y: 0
        text: qsTr("Button")
        onClicked: MyScript.createRect()
    }

}

和脚本：

import QtQuick 2.0

Item {
    width: 50
    height: 50
    Drag.active: true

    MouseArea {
        id: touchArea
        anchors.fill: parent

        drag.target: parent
    }

    Rectangle {
        id: rectangle
        x: 0
        y: 0
        width: 50
        height: 50
        color: "#ad0000"
    }

}

对象的创建与用户想要的一样多。如何从QML创建的对象中访问属性，然后将它们存储在设置中，以便在程序启动后可以重新创建对象

在QML中访问动态创建的对象属性

0 个答案: