Flex中12个简单实用的小技巧

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