有3个属性(实施例1):
[可绑定]公共变种名称:字符串;
[可绑定]公共变种的电子邮件:号码;
[可绑定]公共变种地址:布尔;
我需要有3个辅助方法,将绑定过(例如2):
[可绑定]公共变种名称:字符串;
[可绑定]公共变种的电子邮件:号码;
[可绑定]公共变种地址:布尔;
公共职能得到nameIsOk():布尔{!返回Strings.isEmpty(名称)}
公共职能得到emailIsOk():布尔{回复邮件== 3}
公共职能得到addressIsOk():布尔{返回地址}
当然,code以上不起作用。我做了做这个(例如3)工作:
私人变种_name:字符串
[可绑定(nameChanged)]
公共职能得到名字():字符串{返回_name}
公共功能集名称(V:字符串):无效{_name = V;则dispatchEvent(新的事件(nameChanged))}
[可绑定(nameChanged)]
公共职能得到nameIsOk():布尔{!返回Strings.isEmpty(名称)}
私人VAR _EMAIL:号码
[可绑定(emailChanged)]
公共职能接收电子邮件():数量{返回_EMAIL}
公共职能设置电子邮件(V:编号):无效{_EMAIL = V;则dispatchEvent(新的事件(emailChanged))}
[可绑定(emailChanged)]
公共职能得到emailIsOk():布尔{回复邮件== 3}
私人VAR _address:布尔
[可绑定(addressChanged)]
公共职能的get()的地址:布尔{返回_address}
公共职能设置地址(V:布尔):无效{_address = V;则dispatchEvent(新的事件(addressChanged))}
[可绑定(addressChanged)]
公共职能得到addressIsOk():布尔{返回地址}
它的工作,但现在却是臃肿。
有没有办法减少这种code(例如3),以更小的东西(如例2)?
更新: 荣誉对just_a_dude了很好的答案。这里是最后的版本:
[可绑定]公共变种名称:字符串;
[可绑定]公共变种的电子邮件:号码;
[可绑定]公共变种地址:布尔;
公共职能混音(){
每个(VAR F:字符串中Strings.split(名电子邮件地址)){
ChangeWatcher.watch(这一点,楼的onChange)
}
}
私有函数的onChange(E:的PropertyChangeEvent):无效{
则dispatchEvent(新的事件(e.property +更改))
}
[可绑定(nameChanged)]
公共职能得到nameIsOk():布尔{!返回Strings.isEmpty(名称)}
[可绑定(emailChanged)]
公共职能得到emailIsOk():布尔{回复邮件== 3}
[可绑定(addressChanged)]
公共职能得到addressIsOk():布尔{返回地址}
解决方案
不知道这是你要找的,但你可以使用mx.binding.utils.ChangeWatcher来看的属性更改
< XML版本=1.0编码=UTF-8&GT?;
< MX:脚本>
<![CDATA [
进口mx.events.PropertyChangeEvent;
进口mx.binding.utils.ChangeWatcher;
[可绑定]公共变种姓:字符串;
[可绑定]公共变种的电子邮件:号码;
[可绑定]公共变种地址:布尔;
私人VAR _watcher:返回ChangeWatcher;
私有函数的init():无效{
ChangeWatcher.watch(这一点,名字,propertyChangeHandler);
ChangeWatcher.watch(这一点,电子邮件,propertyChangeHandler);
ChangeWatcher.watch(这一点,地址,propertyChangeHandler);
的firstName =富;
电子邮件= 0;
地址= TRUE;
的firstName =酒吧;
电子邮件= 1;
地址= FALSE;
}
保护功能propertyChangeHandler(事件:PropertyChangeEvent中):无效{
VAR道具:对象= event.property;
VAR参数name:String = prop.toString()+改变;
//跟踪(姓名); //显示firstNameChanged或emailChanged或addressChanged
则dispatchEvent(新的事件(名称));
}
]]≥
< / MX:脚本>
让我知道,如果这有助于
干杯
There are 3 properties (example 1):
[Bindable] public var name:String;
[Bindable] public var email:Number;
[Bindable] public var address:Boolean;
I needed to have 3 helper methods that will be bindable too (example 2):
[Bindable] public var name:String;
[Bindable] public var email:Number;
[Bindable] public var address:Boolean;
public function get nameIsOk():Boolean { return !Strings.isEmpty(name) }
public function get emailIsOk():Boolean { return email == 3 }
public function get addressIsOk():Boolean { return address }
Sure, the code above doesn't work. I made it work by doing this (example 3):
private var _name:String
[Bindable("nameChanged")]
public function get name():String { return _name }
public function set name(v:String):void { _name = v; dispatchEvent(new Event("nameChanged")) }
[Bindable("nameChanged")]
public function get nameIsOk():Boolean { return !Strings.isEmpty(name) }
private var _email:Number
[Bindable("emailChanged")]
public function get email():Number { return _email }
public function set email(v:Number):void { _email = v; dispatchEvent(new Event("emailChanged")) }
[Bindable("emailChanged")]
public function get emailIsOk():Boolean { return email == 3 }
private var _address:Boolean
[Bindable("addressChanged")]
public function get address():Boolean { return _address }
public function set address(v:Boolean):void { _address = v; dispatchEvent(new Event("addressChanged")) }
[Bindable("addressChanged")]
public function get addressIsOk():Boolean { return address }
It does work, but now it is bloated.
Is there a way to reduce this code (example 3) to something smaller (like example 2)?
UPDATE: Kudos to just_a_dude for nice answer. Here is the final version:
[Bindable] public var name:String;
[Bindable] public var email:Number;
[Bindable] public var address:Boolean;
public function Remixer() {
for each (var f:String in Strings.split("name email address")) {
ChangeWatcher.watch(this, f, onChange)
}
}
private function onChange(e:PropertyChangeEvent):void {
dispatchEvent(new Event(e.property + "Changed"))
}
[Bindable("nameChanged")]
public function get nameIsOk():Boolean { return !Strings.isEmpty(name) }
[Bindable("emailChanged")]
public function get emailIsOk():Boolean { return email == 3 }
[Bindable("addressChanged")]
public function get addressIsOk():Boolean { return address }
解决方案
Not sure if this is what you're looking for but you can use mx.binding.utils.ChangeWatcher to "watch" for property changes
<?xml version="1.0" encoding="utf-8"?>
<mx:Script>
<![CDATA[
import mx.events.PropertyChangeEvent;
import mx.binding.utils.ChangeWatcher;
[Bindable] public var firstName:String;
[Bindable] public var email:Number;
[Bindable] public var address:Boolean;
private var _watcher:ChangeWatcher;
private function init():void {
ChangeWatcher.watch(this, "firstName", propertyChangeHandler);
ChangeWatcher.watch(this, "email", propertyChangeHandler);
ChangeWatcher.watch(this, "address", propertyChangeHandler);
firstName = "foo";
email = 0;
address = true;
firstName = "bar";
email = 1;
address = false;
}
protected function propertyChangeHandler(event:PropertyChangeEvent):void {
var prop:Object = event.property;
var name:String = prop.toString() + "Changed";
// trace(name); // displays firstNameChanged or emailChanged or addressChanged
dispatchEvent(new Event(name));
}
]]>
</mx:Script>
Let me know if this helps
Cheers