内容

• 特性
• 信号
• 详细描述
• States with Child States
• 用法范例

State QML 类型

Provides a general-purpose state for StateMachine . 更多...

• 所有成员列表，包括继承成员

特性

• childMode : enumeration
• errorState : QAbstractState
• initialState : QAbstractState

信号

• finished ()

详细描述

State objects can have child states as well as transitions to other states. State is part of 声明状态机框架 .

States with Child States

childMode property determines how child states are treated. For non-parallel state groups, the initialState property must be used to set the initial state. The child states are mutually exclusive states, and the state machine needs to know which child state to enter when the parent state is the target of a transition.

The state emits the State::finished() signal when a final child state ( FinalState ) is entered.

errorState sets the state's error state. The error state is the state that the state machine will transition to if an error is detected when attempting to enter the state (e.g. because no initial state has been set).

用法范例

import QtQuick 2.0
import QtQml.StateMachine 1.0 as DSM
Rectangle {
    DSM.StateMachine {
        id: stateMachine
        initialState: state
        running: true
        DSM.State {
            id: state
        }
    }
}