为非项类型提供内置状态支持。 更多...
导入语句: | import QtQuick 2.2 |
Item (and all derived types) provides built in support for states and transitions via its state , states and transitions properties. StateGroup provides an easy way to use this support in other (non-Item-derived) types.
MyCustomObject { StateGroup { id: myStateGroup states: State { name: "state1" // ... } transitions: Transition { // ... } } onSomethingHappened: myStateGroup.state = "state1"; }
另请参阅 Qt Quick 状态 , 过渡 ,和 Qt QML .
state : string |
This property holds the name of the current state of the state group.
This property is often used in scripts to change between states. For example:
function toggle() { if (button.state == 'On') button.state = 'Off'; else button.state = 'On'; }
If the state group is in its base state (i.e. no explicit state has been set),
state
will be a blank string. Likewise, you can return a state group to its base state by setting its current state to
''
.
另请参阅 Qt Quick 状态 .
states : list < State > |
This property holds a list of states defined by the state group.
StateGroup { states: [ State { // State definition... }, State { // ... } // Other states... ] }
另请参阅 Qt Quick 状态 .
transitions : list < Transition > |
This property holds a list of transitions defined by the state group.
StateGroup { transitions: [ Transition { // ... }, Transition { // ... } // ... ] }
另请参阅 过渡 .