Flash – 第4页 – 吾学网

5月 19, 2021

如何避免遮罩在全屏与非全屏切换时发生错位现象

作者 5xue 在 Flash

如果用语句为舞台上的实例生成遮罩，注意要把遮罩加到舞台上，这样可以避免遮罩与被遮实例在全屏与非全屏切换时发生错位现象。

... ...

var mk:MovieClip = new MovieClip;
mk.x = mc.x;
mk.y = mc.y;
var g:Graphics = mk.graphics;				
g.beginFill(0xFF0000);
g.drawRect(0, 0, mc.width, mc.height);
g.endFill();
addChild(mk); //全屏幕切换时保证不错位

mc.mask = mk;

... ...

1

2

3

4

5

6

7

8

9

10

11

12

13

14

... ...

var mk:MovieClip = new MovieClip;

mk.x = mc.x;

mk.y = mc.y;

var g:Graphics = mk.graphics;

g.beginFill(0xFF0000);

g.drawRect(0, 0, mc.width, mc.height);

g.endFill();

addChild(mk); //全屏幕切换时保证不错位

mc.mask = mk;

... ...

3月 30, 2021

从数组中随机获得1个子集

作者 5xue 在 Flash

var i, j:uint;
var arr1:Array = new Array(1,2,3,4,5,6,7,8,9,"a","b","c","d","e","f");
var arr2:Array = new Array();
var len:uint = arr1.length;
for (i = 0; i < len; i ++) {
	if (arr2.length < 6) {
		j = Math.floor(Math.random() * arr1.length);
		arr2.push(arr1.splice(j,1));
	} else {
		break;
	}
	trace(i)
}
trace(arr1)
trace(arr2)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

var i, j:uint;

var arr1:Array = new Array(1,2,3,4,5,6,7,8,9,"a","b","c","d","e","f");

var arr2:Array = new Array();

var len:uint = arr1.length;

for (i = 0; i < len; i ++) {

if (arr2.length < 6) {

j = Math.floor(Math.random() * arr1.length);

arr2.push(arr1.splice(j,1));

} else {

break;

}

trace(i)

}

trace(arr1)

trace(arr2)

3月 26, 2021

百宝箱（Flash）

作者 5xue 在 Flash

获取屏幕分辨率

分辨率的宽度：Capabilities.screenResolutionX
分辨率的高度：Capabilities.screenResolutionY
如果代码是用在as文件中，需要导入：
import flash.system.Capabilities;

1月 22, 2021

Air应用自定义sqlite数据库文件位置

作者 5xue 在 Flash, 数据库

import flash.filesystem.*;
import flash.utils.ByteArray;
import flash.data.SQLConnection;
import flash.data.SQLMode;
import flash.data.SQLStatement;
import flash.data.SQLResult;

//.....

var fn:String = File.applicationDirectory.nativePath + "/db/t1.db";
var dbFile:File = new File(fn);
var dir:File = dbFile.parent;
if (!dir.exists) {
	dir.createDirectory();
}
var conn:SQLConnection = new SQLConnection();
conn.open(dbFile);

//......

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

import flash.filesystem.*;

import flash.utils.ByteArray;

import flash.data.SQLConnection;

import flash.data.SQLMode;

import flash.data.SQLStatement;

import flash.data.SQLResult;

//.....

var fn:String = File.applicationDirectory.nativePath + "/db/t1.db";

var dbFile:File = new File(fn);

var dir:File = dbFile.parent;

if (!dir.exists) {

dir.createDirectory();

}

var conn:SQLConnection = new SQLConnection();

conn.open(dbFile);

//......

分类目录Flash