Flex中12个简单实用的小技巧 - Flex

复制内容到剪贴板
PLAIN TEXT >> ACTIONSCRIPT:
1. System.setClipboard(strContent);
复制一个 ArrayCollection
PLAIN TEXT >> ACTIONSCRIPT:
1. //dummy solution( well, it works )
2. var bar:ArrayCollection = new ArrayCollection();
3. for each ( var i:Object in ac ){
4. bar.addItem( i );
5. }
6. // fantastic ! //
7. var bar:ListCollectionView = new ListCollectionView( ListCollectionView( ac ).list );
打开 URL
PLAIN TEXT >> ACTIONSCRIPT:
1. navigateToURL(new URLRequest('http://phpz.org/'), '_blank');
刷新页面
PLAIN TEXT >> ACTIONSCRIPT:
1. navigateToURL(new URLRequest("javascript:location.reload();"), "_self");
关闭浏览器
PLAIN TEXT >> ACTIONSCRIPT:
1. navigateToURL(new URLRequest("javascript:window.close()"), "_self");
设置 Alert 窗口透明背景
PLAIN TEXT >> ACTIONSCRIPT:
1. Alert
2. {
3. modalTransparency:0.0;
4. modalTransparencyBlur:0;
5. }
设置随机颜色
PLAIN TEXT >> ACTIONSCRIPT:
1. lbl.setStyle('color', 0xffffff * Math.random());
删除字符串左空白字符
PLAIN TEXT >> ACTIONSCRIPT:
1. // 原文采用循环查找字符然后用 substring 截取字符的方式
2. // 这种方式代码多, 效率低, 这里就不列出原文的代码了
3. // 下面是我用正则实现的(包括下面的 rtrim)
4. private function ltrim(_s:String):String
5. {
6. return _s.replace(/^\s+/, '');
7. }
删除字符串右空白字符
PLAIN TEXT >> ACTIONSCRIPT:
1. private function rtrim(_s:String):String
2. {
3. return _s.replace(/\s+$/, '');
4. }
删除字符串两侧空白字符
PLAIN TEXT >> ACTIONSCRIPT:
1. private function trim(_s:String):String
2. {
3. return ltrim(rtrim(_s));
4. }
取得数据类型
PLAIN TEXT >> ACTIONSCRIPT:
1. getQualifiedClassName(data);
生成验证码
PLAIN TEXT >> ACTIONSCRIPT:
1. private function GenerateCheckCode():String
2. {
3. //init
4. var ran:Number;
5. var number:Number;
6. var code:String;
7. var checkCode:String ="";
8. //get 4 radom
9. for(var i:int=0; i<4; i++)
10. {
11. ran=Math.random();
12. number =Math.round(ran*10000); //get result like 0.1234
13. if(number % 2 == 0)
14. code = String.fromCharCode(48+(number % 10)); //0's ASCII code is 48
15. else
16. code = String.fromCharCode(65+(number % 26)) ; // A's ASCII code is 65
17. checkCode += code;
18. }
19. return checkCode;
20. }