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Android 应用程序之间内容分享详解(一)

2014-01-06 19:51 309 查看
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Android 应用程序之间内容分享详解(二)

一个Andoird应用程序的重要的地方是他们有相互沟通和整合的能力,一个应用程序可以和另一个应用程序交互,接下来我们来看看Android应用之间的内容分享

当你构建Intent的时候,必须要指定Intent的Action触发,定义Intent的Action例如ACTION_SEND,你大概可以猜到指定Action为ACTION_SEND的Intent的作用是从一个Activity发送数据到另一个Activity,甚至跨越不同的进程,将数据发送给另一个Activity,你需要指定数据和他的类型,系统将识别接收的Activity,并显示他们给用户(假如有多个选择的时候)或者立即启动Activity(只要一个选择的时候)

1.发送文本内容



最直接最常用的是用ACTION_SEND来从一个应用发送文本内容到另一个应用,例如,我们的内置浏览器可以与任何页面当前的URL来共享文字,下面的例子就是共享文本内容

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Intent sendIntent = new Intent();  
sendIntent.setAction(Intent.ACTION_SEND);  
//这里是你发送的文本  
sendIntent.putExtra(Intent.EXTRA_TEXT, "我用手机测试分享内容");  
sendIntent.setType("text/plain");  
startActivity(sendIntent);  

假如你安装了过滤Action为ACTION_SEND,MIMEtype为“text/plain”的应用程序,这个系统就会启动,假如系统匹配到多个这样子的应用程序,他就会弹出一个Dialog列出所有的应用供用户选择(一个选择器),如下图



可能你觉得上面的代码很简单,我很容易就能写出来,可是你发现了没有,当我们的手机里面没有地图类型的应用程序,你执行startActivity方法,你的程序就会出现Crash(崩溃),所以我们需要先判断下系统是否有这类型的应用程序,判断也很简单

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public boolean hasApplication(Intent intent){    
        PackageManager packageManager = getPackageManager();    
        //查询是否有该Intent的Activity    
        List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);    
        //activities里面不为空就有,否则就没有    
        return activities.size() > 0 ? true : false;    

所以我们在startActivity的时候要做上面的判断,这样子我们开发出来的程序才会更加的健壮,少一些Crash用户体验也会更好,假如每次都要判断你师傅会觉得烦?所以我们也可以使用Intent的Intent.createChooser方法
他有如下优点

1.1 即使用户选择了默认的方式,选择器仍然会弹出来
1.2 如果没有匹配到这样的应用程序,系统就会提示消息
1.3 你可以指定选择器Dialog的标题

[java]
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Intent sendIntent = new Intent();  
sendIntent.setAction(Intent.ACTION_SEND);  
sendIntent.putExtra(Intent.EXTRA_TEXT, "我用手机测试分享内容");  
sendIntent.setType("text/plain");  
startActivity(Intent.createChooser(sendIntent, "我是弹出框的标题"));  

注:某些邮件类应用程序,如Gmail,我们可以使用putExtra(Intent.EXTRA_EMAIL, String[]) 添加一个字符串数组到Intent中

2.发送二进制内容



二进制内容的共享使用Action为ACTION_SEND,在设置适当的MIME类型,并且添加putExtra(Intent.EXTRA_STREAM,
URI),下面是一个常用的共享图片的代码,也可以共享任何类型的二进制内容

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Intent shareIntent = new Intent();  
shareIntent.setAction(Intent.ACTION_SEND);  
shareIntent.putExtra(Intent.EXTRA_STREAM, uriToImage);  
shareIntent.setType("image/jpeg");  
startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.send_to)));  

主要下面几点
你可以使用MIME type为“ */*” ,他只会匹配处理一般数据流的Activity
接收应用程序需要Uri指定数据的访问权限
在SD卡的文件,我们使用File file = new File(filePath); Uri.fromFile(file),然后把他传递给Intent
在应用程序的目录中,openFileOutput的模式为MODE_WORLD_READABLE,然后我们可以使用getFileStreamPath()返回一个File,然后利用Uri.fromFile(file)传递给Intent
可以扫描图像,视频和音频等媒体文件,添加到系统MediaStore使用SCANFILE()来扫描文件,扫描完成后会调用 onScanCompleted()回调方法来返回一个Uri

图片使用insertImage()方法插入到系统MediaStore也会返回一个图片的Uri
下面是共享图片的例子

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Intent shareIntent = new Intent();  
shareIntent.setAction(Intent.ACTION_SEND);  
File file = new File("mnt/sdcard/share.png");  
              
System.out.println(Uri.fromFile(file));  
shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));  
shareIntent.setType("image/jpeg");  
startActivity(Intent.createChooser(shareIntent, "共享图片"));  

选择QQ空间后,图片就显示在那里了,如下图



我们要共享多个二进制内容利用Action为ACTION_SEND_MULTIPLE,下面是我们共享多张图片

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ArrayList<Uri> imageUris = new ArrayList<Uri>();  
imageUris.add(imageUri1); // Add your image URIs here  
imageUris.add(imageUri2);  
  
Intent shareIntent = new Intent();  
shareIntent.setAction(Intent.ACTION_SEND_MULTIPLE);  
shareIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, imageUris);  
shareIntent.setType("image/*");  
startActivity(Intent.createChooser(shareIntent, "Share images to.."));  

下面我列出几个常用的MIME type类型

text/plain(纯文本)

text/html(HTML文档)

application/xhtml+xml(XHTML文档)

image/gif(GIF图像)

image/jpeg(JPEG图像)【PHP中为:image/pjpeg】

image/png(PNG图像)【PHP中为:image/x-png】

video/mpeg(MPEG动画)

application/octet-stream(任意的二进制数据)

application/pdf(PDF文档)

application/msword(Microsoft Word文件)

message/rfc822(RFC 822形式)

multipart/alternative(HTML邮件的HTML形式和纯文本形式,相同内容使用不同形式表示)

application/x-www-form-urlencoded(使用HTTP的POST方法提交的表单)

multipart/form-data(同上,但主要用于表单提交时伴随文件上传的场合)

Android所有支持的MIME type

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<span style="white-space:pre">      </span>sMimeTypeMap.loadEntry("application/andrew-inset", "ez");  
           sMimeTypeMap.loadEntry("application/dsptype", "tsp");  
           sMimeTypeMap.loadEntry("application/futuresplash", "spl");  
           sMimeTypeMap.loadEntry("application/hta", "hta");  
           sMimeTypeMap.loadEntry("application/mac-binhex40", "hqx");  
           sMimeTypeMap.loadEntry("application/mac-compactpro", "cpt");  
           sMimeTypeMap.loadEntry("application/mathematica", "nb");  
           sMimeTypeMap.loadEntry("application/msaccess", "mdb");  
           sMimeTypeMap.loadEntry("application/oda", "oda");  
           sMimeTypeMap.loadEntry("application/ogg", "ogg");  
           sMimeTypeMap.loadEntry("application/pdf", "pdf");  
           sMimeTypeMap.loadEntry("application/pgp-keys", "key");  
           sMimeTypeMap.loadEntry("application/pgp-signature", "pgp");  
           sMimeTypeMap.loadEntry("application/pics-rules", "prf");  
           sMimeTypeMap.loadEntry("application/rar", "rar");  
           sMimeTypeMap.loadEntry("application/rdf+xml", "rdf");  
           sMimeTypeMap.loadEntry("application/rss+xml", "rss");  
           sMimeTypeMap.loadEntry("application/zip", "zip");  
           sMimeTypeMap.loadEntry("application/vnd.android.package-archive",   
                   "apk");  
           sMimeTypeMap.loadEntry("application/vnd.cinderella", "cdy");  
           sMimeTypeMap.loadEntry("application/vnd.ms-pki.stl", "stl");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.database", "odb");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.formula", "odf");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.graphics", "odg");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.graphics-template",  
                   "otg");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.image", "odi");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.spreadsheet", "ods");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.spreadsheet-template",  
                   "ots");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.text", "odt");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.text-master", "odm");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.text-template", "ott");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.oasis.opendocument.text-web", "oth");  
           sMimeTypeMap.loadEntry("application/msword", "doc");  
           sMimeTypeMap.loadEntry("application/msword", "dot");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.wordprocessingml.document",  
                   "docx");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.wordprocessingml.template",  
                   "dotx");  
           sMimeTypeMap.loadEntry("application/vnd.ms-excel", "xls");  
           sMimeTypeMap.loadEntry("application/vnd.ms-excel", "xlt");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",  
                   "xlsx");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.spreadsheetml.template",  
                   "xltx");  
           sMimeTypeMap.loadEntry("application/vnd.ms-powerpoint", "ppt");  
           sMimeTypeMap.loadEntry("application/vnd.ms-powerpoint", "pot");  
           sMimeTypeMap.loadEntry("application/vnd.ms-powerpoint", "pps");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.presentationml.presentation",  
                   "pptx");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.presentationml.template",  
                   "potx");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.openxmlformats-officedocument.presentationml.slideshow",  
                   "ppsx");  
           sMimeTypeMap.loadEntry("application/vnd.rim.cod", "cod");  
           sMimeTypeMap.loadEntry("application/vnd.smaf", "mmf");  
           sMimeTypeMap.loadEntry("application/vnd.stardivision.calc", "sdc");  
           sMimeTypeMap.loadEntry("application/vnd.stardivision.draw", "sda");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.stardivision.impress", "sdd");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.stardivision.impress", "sdp");  
           sMimeTypeMap.loadEntry("application/vnd.stardivision.math", "smf");  
           sMimeTypeMap.loadEntry("application/vnd.stardivision.writer",  
                   "sdw");  
           sMimeTypeMap.loadEntry("application/vnd.stardivision.writer",  
                   "vor");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.stardivision.writer-global", "sgl");  
           sMimeTypeMap.loadEntry("application/vnd.sun.xml.calc", "sxc");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.sun.xml.calc.template", "stc");  
           sMimeTypeMap.loadEntry("application/vnd.sun.xml.draw", "sxd");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.sun.xml.draw.template", "std");  
           sMimeTypeMap.loadEntry("application/vnd.sun.xml.impress", "sxi");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.sun.xml.impress.template", "sti");  
           sMimeTypeMap.loadEntry("application/vnd.sun.xml.math", "sxm");  
           sMimeTypeMap.loadEntry("application/vnd.sun.xml.writer", "sxw");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.sun.xml.writer.global", "sxg");  
           sMimeTypeMap.loadEntry(  
                   "application/vnd.sun.xml.writer.template", "stw");  
           sMimeTypeMap.loadEntry("application/vnd.visio", "vsd");  
           sMimeTypeMap.loadEntry("application/x-abiword", "abw");  
           sMimeTypeMap.loadEntry("application/x-apple-diskimage", "dmg");  
           sMimeTypeMap.loadEntry("application/x-bcpio", "bcpio");  
           sMimeTypeMap.loadEntry("application/x-bittorrent", "torrent");  
           sMimeTypeMap.loadEntry("application/x-cdf", "cdf");  
           sMimeTypeMap.loadEntry("application/x-cdlink", "vcd");  
           sMimeTypeMap.loadEntry("application/x-chess-pgn", "pgn");  
           sMimeTypeMap.loadEntry("application/x-cpio", "cpio");  
           sMimeTypeMap.loadEntry("application/x-debian-package", "deb");  
           sMimeTypeMap.loadEntry("application/x-debian-package", "udeb");  
           sMimeTypeMap.loadEntry("application/x-director", "dcr");  
           sMimeTypeMap.loadEntry("application/x-director", "dir");  
           sMimeTypeMap.loadEntry("application/x-director", "dxr");  
           sMimeTypeMap.loadEntry("application/x-dms", "dms");  
           sMimeTypeMap.loadEntry("application/x-doom", "wad");  
           sMimeTypeMap.loadEntry("application/x-dvi", "dvi");  
           sMimeTypeMap.loadEntry("application/x-flac", "flac");  
           sMimeTypeMap.loadEntry("application/x-font", "pfa");  
           sMimeTypeMap.loadEntry("application/x-font", "pfb");  
           sMimeTypeMap.loadEntry("application/x-font", "gsf");  
           sMimeTypeMap.loadEntry("application/x-font", "pcf");  
           sMimeTypeMap.loadEntry("application/x-font", "pcf.Z");  
           sMimeTypeMap.loadEntry("application/x-freemind", "mm");  
           sMimeTypeMap.loadEntry("application/x-futuresplash", "spl");  
           sMimeTypeMap.loadEntry("application/x-gnumeric", "gnumeric");  
           sMimeTypeMap.loadEntry("application/x-go-sgf", "sgf");  
           sMimeTypeMap.loadEntry("application/x-graphing-calculator", "gcf");  
           sMimeTypeMap.loadEntry("application/x-gtar", "gtar");  
           sMimeTypeMap.loadEntry("application/x-gtar", "tgz");  
           sMimeTypeMap.loadEntry("application/x-gtar", "taz");  
           sMimeTypeMap.loadEntry("application/x-hdf", "hdf");  
           sMimeTypeMap.loadEntry("application/x-ica", "ica");  
           sMimeTypeMap.loadEntry("application/x-internet-signup", "ins");  
           sMimeTypeMap.loadEntry("application/x-internet-signup", "isp");  
           sMimeTypeMap.loadEntry("application/x-iphone", "iii");  
           sMimeTypeMap.loadEntry("application/x-iso9660-image", "iso");  
           sMimeTypeMap.loadEntry("application/x-jmol", "jmz");  
           sMimeTypeMap.loadEntry("application/x-kchart", "chrt");  
           sMimeTypeMap.loadEntry("application/x-killustrator", "kil");  
           sMimeTypeMap.loadEntry("application/x-koan", "skp");  
           sMimeTypeMap.loadEntry("application/x-koan", "skd");  
           sMimeTypeMap.loadEntry("application/x-koan", "skt");  
           sMimeTypeMap.loadEntry("application/x-koan", "skm");  
           sMimeTypeMap.loadEntry("application/x-kpresenter", "kpr");  
           sMimeTypeMap.loadEntry("application/x-kpresenter", "kpt");  
           sMimeTypeMap.loadEntry("application/x-kspread", "ksp");  
           sMimeTypeMap.loadEntry("application/x-kword", "kwd");  
           sMimeTypeMap.loadEntry("application/x-kword", "kwt");  
           sMimeTypeMap.loadEntry("application/x-latex", "latex");  
           sMimeTypeMap.loadEntry("application/x-lha", "lha");  
           sMimeTypeMap.loadEntry("application/x-lzh", "lzh");  
           sMimeTypeMap.loadEntry("application/x-lzx", "lzx");  
           sMimeTypeMap.loadEntry("application/x-maker", "frm");  
           sMimeTypeMap.loadEntry("application/x-maker", "maker");  
           sMimeTypeMap.loadEntry("application/x-maker", "frame");  
           sMimeTypeMap.loadEntry("application/x-maker", "fb");  
           sMimeTypeMap.loadEntry("application/x-maker", "book");  
           sMimeTypeMap.loadEntry("application/x-maker", "fbdoc");  
           sMimeTypeMap.loadEntry("application/x-mif", "mif");  
           sMimeTypeMap.loadEntry("application/x-ms-wmd", "wmd");  
           sMimeTypeMap.loadEntry("application/x-ms-wmz", "wmz");  
           sMimeTypeMap.loadEntry("application/x-msi", "msi");  
           sMimeTypeMap.loadEntry("application/x-ns-proxy-autoconfig", "pac");  
           sMimeTypeMap.loadEntry("application/x-nwc", "nwc");  
           sMimeTypeMap.loadEntry("application/x-object", "o");  
           sMimeTypeMap.loadEntry("application/x-oz-application", "oza");  
           sMimeTypeMap.loadEntry("application/x-pkcs12", "p12");  
           sMimeTypeMap.loadEntry("application/x-pkcs7-certreqresp", "p7r");  
           sMimeTypeMap.loadEntry("application/x-pkcs7-crl", "crl");  
           sMimeTypeMap.loadEntry("application/x-quicktimeplayer", "qtl");  
           sMimeTypeMap.loadEntry("application/x-shar", "shar");  
           sMimeTypeMap.loadEntry("application/x-shockwave-flash", "swf");  
           sMimeTypeMap.loadEntry("application/x-stuffit", "sit");  
           sMimeTypeMap.loadEntry("application/x-sv4cpio", "sv4cpio");  
           sMimeTypeMap.loadEntry("application/x-sv4crc", "sv4crc");  
           sMimeTypeMap.loadEntry("application/x-tar", "tar");  
           sMimeTypeMap.loadEntry("application/x-texinfo", "texinfo");  
           sMimeTypeMap.loadEntry("application/x-texinfo", "texi");  
           sMimeTypeMap.loadEntry("application/x-troff", "t");  
           sMimeTypeMap.loadEntry("application/x-troff", "roff");  
           sMimeTypeMap.loadEntry("application/x-troff-man", "man");  
           sMimeTypeMap.loadEntry("application/x-ustar", "ustar");  
           sMimeTypeMap.loadEntry("application/x-wais-source", "src");  
           sMimeTypeMap.loadEntry("application/x-wingz", "wz");  
           sMimeTypeMap.loadEntry("application/x-webarchive", "webarchive");  
           sMimeTypeMap.loadEntry("application/x-x509-ca-cert", "crt");  
           sMimeTypeMap.loadEntry("application/x-x509-user-cert", "crt");  
           sMimeTypeMap.loadEntry("application/x-xcf", "xcf");  
           sMimeTypeMap.loadEntry("application/x-xfig", "fig");  
           sMimeTypeMap.loadEntry("application/xhtml+xml", "xhtml");  
           sMimeTypeMap.loadEntry("audio/3gpp", "3gpp");  
           sMimeTypeMap.loadEntry("audio/basic", "snd");  
           sMimeTypeMap.loadEntry("audio/midi", "mid");  
           sMimeTypeMap.loadEntry("audio/midi", "midi");  
           sMimeTypeMap.loadEntry("audio/midi", "kar");  
           sMimeTypeMap.loadEntry("audio/mpeg", "mpga");  
           sMimeTypeMap.loadEntry("audio/mpeg", "mpega");  
           sMimeTypeMap.loadEntry("audio/mpeg", "mp2");  
           sMimeTypeMap.loadEntry("audio/mpeg", "mp3");  
           sMimeTypeMap.loadEntry("audio/mpeg", "m4a");  
           sMimeTypeMap.loadEntry("audio/mpegurl", "m3u");  
           sMimeTypeMap.loadEntry("audio/prs.sid", "sid");  
           sMimeTypeMap.loadEntry("audio/x-aiff", "aif");  
           sMimeTypeMap.loadEntry("audio/x-aiff", "aiff");  
           sMimeTypeMap.loadEntry("audio/x-aiff", "aifc");  
           sMimeTypeMap.loadEntry("audio/x-gsm", "gsm");  
           sMimeTypeMap.loadEntry("audio/x-mpegurl", "m3u");  
           sMimeTypeMap.loadEntry("audio/x-ms-wma", "wma");  
           sMimeTypeMap.loadEntry("audio/x-ms-wax", "wax");  
           sMimeTypeMap.loadEntry("audio/x-pn-realaudio", "ra");  
           sMimeTypeMap.loadEntry("audio/x-pn-realaudio", "rm");  
           sMimeTypeMap.loadEntry("audio/x-pn-realaudio", "ram");  
           sMimeTypeMap.loadEntry("audio/x-realaudio", "ra");  
           sMimeTypeMap.loadEntry("audio/x-scpls", "pls");  
           sMimeTypeMap.loadEntry("audio/x-sd2", "sd2");  
           sMimeTypeMap.loadEntry("audio/x-wav", "wav");  
           sMimeTypeMap.loadEntry("image/bmp", "bmp");  
           sMimeTypeMap.loadEntry("image/gif", "gif");  
           sMimeTypeMap.loadEntry("image/ico", "cur");  
           sMimeTypeMap.loadEntry("image/ico", "ico");  
           sMimeTypeMap.loadEntry("image/ief", "ief");  
           sMimeTypeMap.loadEntry("image/jpeg", "jpeg");  
           sMimeTypeMap.loadEntry("image/jpeg", "jpg");  
           sMimeTypeMap.loadEntry("image/jpeg", "jpe");  
           sMimeTypeMap.loadEntry("image/pcx", "pcx");  
           sMimeTypeMap.loadEntry("image/png", "png");  
           sMimeTypeMap.loadEntry("image/svg+xml", "svg");  
           sMimeTypeMap.loadEntry("image/svg+xml", "svgz");  
           sMimeTypeMap.loadEntry("image/tiff", "tiff");  
           sMimeTypeMap.loadEntry("image/tiff", "tif");  
           sMimeTypeMap.loadEntry("image/vnd.djvu", "djvu");  
           sMimeTypeMap.loadEntry("image/vnd.djvu", "djv");  
           sMimeTypeMap.loadEntry("image/vnd.wap.wbmp", "wbmp");  
           sMimeTypeMap.loadEntry("image/x-cmu-raster", "ras");  
           sMimeTypeMap.loadEntry("image/x-coreldraw", "cdr");  
           sMimeTypeMap.loadEntry("image/x-coreldrawpattern", "pat");  
           sMimeTypeMap.loadEntry("image/x-coreldrawtemplate", "cdt");  
           sMimeTypeMap.loadEntry("image/x-corelphotopaint", "cpt");  
           sMimeTypeMap.loadEntry("image/x-icon", "ico");  
           sMimeTypeMap.loadEntry("image/x-jg", "art");  
           sMimeTypeMap.loadEntry("image/x-jng", "jng");  
           sMimeTypeMap.loadEntry("image/x-ms-bmp", "bmp");  
           sMimeTypeMap.loadEntry("image/x-photoshop", "psd");  
           sMimeTypeMap.loadEntry("image/x-portable-anymap", "pnm");  
           sMimeTypeMap.loadEntry("image/x-portable-bitmap", "pbm");  
           sMimeTypeMap.loadEntry("image/x-portable-graymap", "pgm");  
           sMimeTypeMap.loadEntry("image/x-portable-pixmap", "ppm");  
           sMimeTypeMap.loadEntry("image/x-rgb", "rgb");  
           sMimeTypeMap.loadEntry("image/x-xbitmap", "xbm");  
           sMimeTypeMap.loadEntry("image/x-xpixmap", "xpm");  
           sMimeTypeMap.loadEntry("image/x-xwindowdump", "xwd");  
           sMimeTypeMap.loadEntry("model/iges", "igs");  
           sMimeTypeMap.loadEntry("model/iges", "iges");  
           sMimeTypeMap.loadEntry("model/mesh", "msh");  
           sMimeTypeMap.loadEntry("model/mesh", "mesh");  
           sMimeTypeMap.loadEntry("model/mesh", "silo");  
           sMimeTypeMap.loadEntry("text/calendar", "ics");  
           sMimeTypeMap.loadEntry("text/calendar", "icz");  
           sMimeTypeMap.loadEntry("text/comma-separated-values", "csv");  
           sMimeTypeMap.loadEntry("text/css", "css");  
           sMimeTypeMap.loadEntry("text/html", "htm");  
           sMimeTypeMap.loadEntry("text/html", "html");  
           sMimeTypeMap.loadEntry("text/h323", "323");  
           sMimeTypeMap.loadEntry("text/iuls", "uls");  
           sMimeTypeMap.loadEntry("text/mathml", "mml");  
           // add it first so it will be the default for ExtensionFromMimeType  
           sMimeTypeMap.loadEntry("text/plain", "txt");  
           sMimeTypeMap.loadEntry("text/plain", "asc");  
           sMimeTypeMap.loadEntry("text/plain", "text");  
           sMimeTypeMap.loadEntry("text/plain", "diff");  
           sMimeTypeMap.loadEntry("text/plain", "po");     // reserve "pot" for vnd.ms-powerpoint  
           sMimeTypeMap.loadEntry("text/richtext", "rtx");  
           sMimeTypeMap.loadEntry("text/rtf", "rtf");  
           sMimeTypeMap.loadEntry("text/texmacs", "ts");  
           sMimeTypeMap.loadEntry("text/text", "phps");  
           sMimeTypeMap.loadEntry("text/tab-separated-values", "tsv");  
           sMimeTypeMap.loadEntry("text/xml", "xml");  
           sMimeTypeMap.loadEntry("text/x-bibtex", "bib");  
           sMimeTypeMap.loadEntry("text/x-boo", "boo");  
           sMimeTypeMap.loadEntry("text/x-c++hdr", "h++");  
           sMimeTypeMap.loadEntry("text/x-c++hdr", "hpp");  
           sMimeTypeMap.loadEntry("text/x-c++hdr", "hxx");  
           sMimeTypeMap.loadEntry("text/x-c++hdr", "hh");  
           sMimeTypeMap.loadEntry("text/x-c++src", "c++");  
           sMimeTypeMap.loadEntry("text/x-c++src", "cpp");  
           sMimeTypeMap.loadEntry("text/x-c++src", "cxx");  
           sMimeTypeMap.loadEntry("text/x-chdr", "h");  
           sMimeTypeMap.loadEntry("text/x-component", "htc");  
           sMimeTypeMap.loadEntry("text/x-csh", "csh");  
           sMimeTypeMap.loadEntry("text/x-csrc", "c");  
           sMimeTypeMap.loadEntry("text/x-dsrc", "d");  
           sMimeTypeMap.loadEntry("text/x-haskell", "hs");  
           sMimeTypeMap.loadEntry("text/x-java", "java");  
           sMimeTypeMap.loadEntry("text/x-literate-haskell", "lhs");  
           sMimeTypeMap.loadEntry("text/x-moc", "moc");  
           sMimeTypeMap.loadEntry("text/x-pascal", "p");  
           sMimeTypeMap.loadEntry("text/x-pascal", "pas");  
           sMimeTypeMap.loadEntry("text/x-pcs-gcd", "gcd");  
           sMimeTypeMap.loadEntry("text/x-setext", "etx");  
           sMimeTypeMap.loadEntry("text/x-tcl", "tcl");  
           sMimeTypeMap.loadEntry("text/x-tex", "tex");  
           sMimeTypeMap.loadEntry("text/x-tex", "ltx");  
           sMimeTypeMap.loadEntry("text/x-tex", "sty");  
           sMimeTypeMap.loadEntry("text/x-tex", "cls");  
           sMimeTypeMap.loadEntry("text/x-vcalendar", "vcs");  
           sMimeTypeMap.loadEntry("text/x-vcard", "vcf");  
           sMimeTypeMap.loadEntry("video/3gpp", "3gpp");  
           sMimeTypeMap.loadEntry("video/3gpp", "3gp");  
           sMimeTypeMap.loadEntry("video/3gpp", "3g2");  
           sMimeTypeMap.loadEntry("video/dl", "dl");  
           sMimeTypeMap.loadEntry("video/dv", "dif");  
           sMimeTypeMap.loadEntry("video/dv", "dv");  
           sMimeTypeMap.loadEntry("video/fli", "fli");  
           sMimeTypeMap.loadEntry("video/m4v", "m4v");  
           sMimeTypeMap.loadEntry("video/mpeg", "mpeg");  
           sMimeTypeMap.loadEntry("video/mpeg", "mpg");  
           sMimeTypeMap.loadEntry("video/mpeg", "mpe");  
           sMimeTypeMap.loadEntry("video/mp4", "mp4");  
           sMimeTypeMap.loadEntry("video/mpeg", "VOB");  
           sMimeTypeMap.loadEntry("video/quicktime", "qt");  
           sMimeTypeMap.loadEntry("video/quicktime", "mov");  
           sMimeTypeMap.loadEntry("video/vnd.mpegurl", "mxu");  
           sMimeTypeMap.loadEntry("video/x-la-asf", "lsf");  
           sMimeTypeMap.loadEntry("video/x-la-asf", "lsx");  
           sMimeTypeMap.loadEntry("video/x-mng", "mng");  
           sMimeTypeMap.loadEntry("video/x-ms-asf", "asf");  
           sMimeTypeMap.loadEntry("video/x-ms-asf", "asx");  
           sMimeTypeMap.loadEntry("video/x-ms-wm", "wm");  
           sMimeTypeMap.loadEntry("video/x-ms-wmv", "wmv");  
           sMimeTypeMap.loadEntry("video/x-ms-wmx", "wmx");  
           sMimeTypeMap.loadEntry("video/x-ms-wvx", "wvx");  
           sMimeTypeMap.loadEntry("video/x-msvideo", "avi");  
           sMimeTypeMap.loadEntry("video/x-sgi-movie", "movie");  
           sMimeTypeMap.loadEntry("x-conference/x-cooltalk", "ice");  
           sMimeTypeMap.loadEntry("x-epoc/x-sisx-app", "sisx");  

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