如何在Sencha Touch的自定义组件中进行自毁 [英] How to do a self-destroy inside a custom component in Sencha Touch
问题描述
更新:
新代码:
Ext.define ('Fiddle.MyCmp',{
extends:'Ext.Component'
,别名:'widget.mycmp'
,config:{
html:'MyCmp'
,初始化:function(){
var me = this;
console.log(me);
Ext.Function.defer(me.destroy,我的
Ext.Function.defer(function(){
console.log('8秒后');
console.log(this);
},8000,我);
}
});
Ext.application({
name:'Fiddle',
ref:{
cmp:'mycmp'
},
启动:function(){
Ext.Viewport.add({
xtype:'mycmp'
});
}
});
仍然可以在8秒后打印出组件。这是控制台日志:
类{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 ...}
我试图在自定义组件中添加自毁功能。
但它根本不起作用。
这是我的代码:
Ext.define('NoiseComponent',{
extends:'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:
< blockquote>
初始化组件VM1591:44 Class {onInitializedListeners:
Array [0],initialConfig:Object,id:ext-noisestation-1,
getUniqueId:function,getId :function ...} VM1591:72在destroy()之前做一些
在销毁VM1591之后,VM1591:65 Class
{onInitializedListeners:Array [0],initialConfig:Object,id:
ext -noisestation-1,getUniqueId:function,getId:function ...}
VM1591:78自毁VM1591:60执行destroy()
VM1591:65 5s后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
我想你要在初始化之后销毁组件5s。如果是,请执行以下代码:
Ext.define('Fiddle.MyCmp',{
extends: 'Ext.Component'
,别名:'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'
},
启动:function(){
Ext.Viewport.add({
xtype:'mycmp'
});
}
} )
update:
new code:
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'
});
}
});
Still after 8 seconds, I still can print out the component. Here is the console log:
Class {onInitializedListeners: Array[0], initialConfig: Object, id: "ext-mycmp-1", getUniqueId: function, getId: function…} VM1639:39
after 8 seconds VM1639:43 Class {onInitializedListeners: Array[0], initialConfig: Object, id: "ext-mycmp-1", getUniqueId: function, getId: function…}
I am trying to add a self-destroy function in a custom component. But it simply doesn't work.
Here is my code:
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);
Here is the console log I got:
initialize component VM1591:44 Class {onInitializedListeners: Array[0], initialConfig: Object, id: "ext-noisestation-1", getUniqueId: function, getId: function…} VM1591:72 do something before destroy() VM1591:65 after destroyed VM1591:77 Class {onInitializedListeners: Array[0], initialConfig: Object, id: "ext-noisestation-1", getUniqueId: function, getId: function…} VM1591:78 self-destroy VM1591:60 do something before destroy() VM1591:65 after 5s VM1591:81 Class {onInitializedListeners: Array[0], initialConfig: Object, id: "ext-noisestation-1", getUniqueId: function, getId: function…} VM1591:82
Here is my sencha jsfiddle https://fiddle.sencha.com/#fiddle/6cl
I suppose you want to destroy the component 5s after it is initialized. If so, the following code does it:
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'
});
}
})
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