更新
新代码:
Ext.define('Fiddle.MyCmp',{
extend:'Ext.Component'
,alias:'widget.mycmp'
,config:{
html:'MyCmp'
}
,initialize:function() {
var me = this;
console.log(me);
Ext.Function.defer(me.destroy, 5000, me);
Ext.Function.defer(function(){
console.log('after 8 seconds');
console.log(this);
}, 8000, me);
}
});
Ext.application({
name : 'Fiddle',
ref:{
cmp: 'mycmp'
},
launch : function() {
Ext.Viewport.add({
xtype:'mycmp'
});
}
});
8秒后,我仍然可以打印出组件。这是控制台日志:
Class {onInitializedListeners:Array [0],initialConfig:Object,id: “ext-mycmp-1”,getUniqueId:function,getId:function ...} VM1639:39
8秒后VM1639:43 Class {onInitializedListeners:Array [0], initialConfig:Object,id:“ext-mycmp-1”,getUniqueId:function, getId:function ...}
我正在尝试在自定义组件中添加自毁功能。 但它根本行不通。
这是我的代码:
Ext.define('NoiseComponent', {
extend: 'Ext.Component',
xtype: 'noisestation',
config: {
name: null,
updatedTime: new Date(),
listeners: {
destroy: function() {
console.log("do something before destroy()");
//thisComponent.destroy();
},
updatedata: function(thisComponent, newData, eOpts) {
var startTime = newData[0].get("NoiseTime");
this.config.updatedTime = new Date();
},
initialize: function(thisComponent, eOpts) {
console.log("initialize component");
setTimeout(function() {
thisComponent.selfDestory(thisComponent);
}, 5000);
}
}
},
drawNoise: function() {
console.log("drawNoise");
},
selfDestory: function(thisComponent) {
console.log("self-destroy");
thisComponent.destroy(thisComponent);
}
});
var c = Ext.create("NoiseComponent");
console.log(c);
c.destroy();
//c.fireEvent('destroy');
console.log("after destroyed");
console.log(c);
setTimeout(function() {
console.log("after 5s");
console.log(c);
}, 5000);
这是我得到的控制台日志:
初始化组件VM1591:44 Class {onInitializedListeners: Array [0],initialConfig:Object,id:“ext-noisestation-1”, getUniqueId:function,getId:function ...} VM1591:72做点什么 在破坏VM1591:77类之后destroy()VM1591:65之前 {onInitializedListeners:Array [0],initialConfig:Object,id: “ext-noisestation-1”,getUniqueId:function,getId:function ...} VM1591:78自毁VM1591:60在destroy()之前做一些事情 5秒后VM1591:65 VM1591:81 Class {onInitializedListeners:Array [0], initialConfig:Object,id:“ext-noisestation-1”,getUniqueId: function,getId:function ...} VM1591:82
这是我的sencha jsfiddle https://fiddle.sencha.com/#fiddle/6cl
答案 0 :(得分:0)
我想你想要在初始化之后销毁组件5s。如果是这样,则以下代码执行此操作:
Ext.define('Fiddle.MyCmp',{
extend:'Ext.Component'
,alias:'widget.mycmp'
,config:{
html:'MyCmp'
}
,destroy:function() {
console.log('destroy override');
this.callParent(arguments);
}
,initialize:function() {
var me = this;
Ext.Function.defer(function(){
console.log('Destroying after delay')
me.destroy();
}, 5000, me);
}
});
Ext.application({
name : 'Fiddle',
ref:{
cmp: 'mycmp'
},
launch : function() {
Ext.Viewport.add({
xtype:'mycmp'
});
}
})