Android 應用程序之間內容分享詳解（一）

時間 2019-11-18

原文原文鏈接

一個Andoird應用程序的重要的地方是他們有相互溝通和整合的能力，一個應用程序能夠和另外一個應用程序交互，接下來咱們來看看Android應用之間的內容分享php

當你構建Intent的時候，必需要指定Intent的Action觸發，定義Intent的Action例如ACTION_SEND，你大概能夠猜到指定Action爲ACTION_SEND的Intent的做用是從一個Activity發送數據到另外一個Activity，甚至跨越不一樣的進程，將數據發送給另外一個Activity，你須要指定數據和他的類型，系統將識別接收的Activity，並顯示他們給用戶（假若有多個選擇的時候）或者當即啓動Activity（只要一個選擇的時候）css

1.發送文本內容html

最直接最經常使用的是用ACTION_SEND來從一個應用發送文本內容到另外一個應用，例如，咱們的內置瀏覽器能夠與任何頁面當前的URL來共享文字，下面的例子就是共享文本內容java

Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
//這裏是你發送的文本
sendIntent.putExtra(Intent.EXTRA_TEXT, "我用手機測試分享內容");
sendIntent.setType("text/plain");
startActivity(sendIntent);

假如你安裝了過濾Action爲ACTION_SEND，MIMEtype爲「text/plain」的應用程序，這個系統就會啓動，假如系統匹配到多個這樣子的應用程序，他就會彈出一個Dialog列出全部的應用供用戶選擇（一個選擇器），以下圖android

可能你以爲上面的代碼很簡單，我很容易就能寫出來，但是你發現了沒有，當咱們的手機裏面沒有地圖類型的應用程序，你執行startActivity方法，你的程序就會出現Crash（崩潰），因此咱們須要先判斷下系統是否有這類型的應用程序，判斷也很簡單
c++

public boolean hasApplication(Intent intent){  
        PackageManager packageManager = getPackageManager();  
        //查詢是否有該Intent的Activity  
        List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);  
        //activities裏面不爲空就有，不然就沒有  
        return activities.size() > 0 ? true : false;

因此咱們在startActivity的時候要作上面的判斷，這樣子咱們開發出來的程序纔會更加的健壯，少一些Crash用戶體驗也會更好，假如每次都要判斷你師傅會以爲煩？因此咱們也可使用Intent的Intent.createChooser方法web

他有以下優勢數組

1.1 即便用戶選擇了默認的方式，選擇器仍然會彈出來
1.2 若是沒有匹配到這樣的應用程序，系統就會提示消息
1.3 你能夠指定選擇器Dialog的標題

Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "我用手機測試分享內容");
sendIntent.setType("text/plain");
startActivity(Intent.createChooser(sendIntent, "我是彈出框的標題"));

注：某些郵件類應用程序，如Gmail,咱們可使用putExtra(Intent.EXTRA_EMAIL, String[]) 添加一個字符串數組到Intent中
瀏覽器

2.發送二進制內容app

二進制內容的共享使用Action爲ACTION_SEND，在設置適當的MIME類型，而且添加putExtra(Intent.EXTRA_STREAM, URI),下面是一個經常使用的共享圖片的代碼，也能夠共享任何類型的二進制內容

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)));

主要下面幾點

你可使用MIME type爲「 */*」 ,他只會匹配處理通常數據流的Activity
接收應用程序須要Uri指定數據的訪問權限

在SD卡的文件，咱們使用File file = new File(filePath); Uri.fromFile(file),而後把他傳遞給Intent
在應用程序的目錄中，openFileOutput的模式爲MODE_WORLD_READABLE，而後咱們可使用getFileStreamPath（）返回一個File，而後利用Uri.fromFile(file)傳遞給Intent
能夠掃描圖像，視頻和音頻等媒體文件，添加到系統MediaStore使用SCANFILE()來掃描文件，掃描完成後會調用 onScanCompleted()回調方法來返回一個Uri
圖片使用insertImage()方法插入到系統MediaStore也會返回一個圖片的Uri

下面是共享圖片的例子

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, "共享圖片"));

選擇QQ空間後，圖片就顯示在那裏了，以下圖

咱們要共享多個二進制內容利用Action爲ACTION_SEND_MULTIPLE,下面是咱們共享多張圖片

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.."));

下面我列出幾個經常使用的MIME type類型

text/plain（純文本）
text/html（HTML文檔）
application/xhtml+xml（XHTML文檔）
image/gif（GIF圖像）
image/jpeg（JPEG圖像）【PHP中爲：image/pjpeg】
image/png（PNG圖像）【PHP中爲：image/x-png】
video/mpeg（MPEG動畫）
application/octet-stream（任意的二進制數據）
application/pdf（PDF文檔）
application/msword（Microsoft Word文件）
message/rfc822（RFC 822形式）
multipart/alternative（HTML郵件的HTML形式和純文本形式，相同內容使用不一樣形式表示）
application/x-www-form-urlencoded（使用HTTP的POST方法提交的表單）
multipart/form-data（同上，但主要用於表單提交時伴隨文件上傳的場合）

Android全部支持的MIME type

 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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