博客

android项目中，可能需要打开各种文件，每一个都写一个Intent 并且并且根据不同的类型设置setDataAndType  当有大量文件类型时，打开文件变得很麻烦

下面是写的一个打开文件工具类，可以根据不同的文件类型打开不同应用程序

代码地址如下



http://download.csdn.net/detail/zaiyong/7712737

当可以识别文件类型时，根据文件类型打开文件

当识别不了文件类型时如图

下面是MimeUtils 根据MIME类型选择对应的action

public final class MimeUtils {


private static final Map<String, String> mimeTypeToExtensionMap = new HashMap<String, String>();

private static final Map<String, String> extensionToMimeTypeMap = new HashMap<String, String>();

static {


// The following table is based on /etc/mime.types data minus

// chemical/* MIME types and MIME types that don’t map to any

// file extensions. We also exclude top-level domain names to

// deal with cases like:

//

// mail.google.com/a/google.com

//

// and “active” MIME types (due to potential security issues).

add(“application/andrew-inset”, “ez”);

add(“application/dsptype”, “tsp”);

add(“application/futuresplash”, “spl”);

add(“application/hta”, “hta”);

add(“application/mac-binhex40”, “hqx”);

add(“application/mac-compactpro”, “cpt”);

add(“application/mathematica”, “nb”);

add(“application/msaccess”, “mdb”);

add(“application/oda”, “oda”);

add(“application/ogg”, “ogg”);

add(“application/pdf”, “pdf”);

add(“application/pgp-keys”, “key”);

add(“application/pgp-signature”, “pgp”);

add(“application/pics-rules”, “prf”);

add(“application/rar”, “rar”);

add(“application/rdf+xml”, “rdf”);

add(“application/rss+xml”, “rss”);

add(“application/zip”, “zip”);

add(“application/vnd.android.package-archive”, “apk”);

add(“application/vnd.cinderella”, “cdy”);

add(“application/vnd.ms-pki.stl”, “stl”);

add(“application/vnd.oasis.opendocument.database”, “odb”);

add(“application/vnd.oasis.opendocument.formula”, “odf”);

add(“application/vnd.oasis.opendocument.graphics”, “odg”);

add(“application/vnd.oasis.opendocument.graphics-template”, “otg”);

add(“application/vnd.oasis.opendocument.image”, “odi”);

add(“application/vnd.oasis.opendocument.spreadsheet”, “ods”);

add(“application/vnd.oasis.opendocument.spreadsheet-template”, “ots”);

add(“application/vnd.oasis.opendocument.text”, “odt”);

add(“application/vnd.oasis.opendocument.text-master”, “odm”);

add(“application/vnd.oasis.opendocument.text-template”, “ott”);

add(“application/vnd.oasis.opendocument.text-web”, “oth”);

add(“application/vnd.google-earth.kml+xml”, “kml”);

add(“application/vnd.google-earth.kmz”, “kmz”);

add(“application/msword”, “doc”);

add(“application/msword”, “dot”);

add(“application/vnd.openxmlformats-officedocument.wordprocessingml.document”, “docx”);

add(“application/vnd.openxmlformats-officedocument.wordprocessingml.template”, “dotx”);

add(“application/vnd.ms-excel”, “xls”);

add(“application/vnd.ms-excel”, “xlt”);

add(“application/vnd.openxmlformats-officedocument.spreadsheetml.sheet”, “xlsx”);

add(“application/vnd.openxmlformats-officedocument.spreadsheetml.template”, “xltx”);

add(“application/vnd.ms-powerpoint”, “ppt”);

add(“application/vnd.ms-powerpoint”, “pot”);

add(“application/vnd.ms-powerpoint”, “pps”);

add(“application/vnd.openxmlformats-officedocument.presentationml.presentation”, “pptx”);

add(“application/vnd.openxmlformats-officedocument.presentationml.template”, “potx”);

add(“application/vnd.openxmlformats-officedocument.presentationml.slideshow”, “ppsx”);

add(“application/vnd.rim.cod”, “cod”);

add(“application/vnd.smaf”, “mmf”);

add(“application/vnd.stardivision.calc”, “sdc”);

add(“application/vnd.stardivision.draw”, “sda”);

add(“application/vnd.stardivision.impress”, “sdd”);

add(“application/vnd.stardivision.impress”, “sdp”);

add(“application/vnd.stardivision.math”, “smf”);

add(“application/vnd.stardivision.writer”, “sdw”);

add(“application/vnd.stardivision.writer”, “vor”);

add(“application/vnd.stardivision.writer-global”, “sgl”);

add(“application/vnd.sun.xml.calc”, “sxc”);

add(“application/vnd.sun.xml.calc.template”, “stc”);

add(“application/vnd.sun.xml.draw”, “sxd”);

add(“application/vnd.sun.xml.draw.template”, “std”);

add(“application/vnd.sun.xml.impress”, “sxi”);

add(“application/vnd.sun.xml.impress.template”, “sti”);

add(“application/vnd.sun.xml.math”, “sxm”);

add(“application/vnd.sun.xml.writer”, “sxw”);

add(“application/vnd.sun.xml.writer.global”, “sxg”);

add(“application/vnd.sun.xml.writer.template”, “stw”);

add(“application/vnd.visio”, “vsd”);

add(“application/x-abiword”, “abw”);

add(“application/x-apple-diskimage”, “dmg”);

add(“application/x-bcpio”, “bcpio”);

add(“application/x-bittorrent”, “torrent”);

add(“application/x-cdf”, “cdf”);

add(“application/x-cdlink”, “vcd”);

add(“application/x-chess-pgn”, “pgn”);

add(“application/x-cpio”, “cpio”);

add(“application/x-debian-package”, “deb”);

add(“application/x-debian-package”, “udeb”);

add(“application/x-director”, “dcr”);

add(“application/x-director”, “dir”);

add(“application/x-director”, “dxr”);

add(“application/x-dms”, “dms”);

add(“application/x-doom”, “wad”);

add(“application/x-dvi”, “dvi”);

add(“application/x-flac”, “flac”);

add(“application/x-font”, “pfa”);

add(“application/x-font”, “pfb”);

add(“application/x-font”, “gsf”);

add(“application/x-font”, “pcf”);

add(“application/x-font”, “pcf.Z”);

add(“application/x-freemind”, “mm”);

add(“application/x-futuresplash”, “spl”);

add(“application/x-gnumeric”, “gnumeric”);

add(“application/x-go-sgf”, “sgf”);

add(“application/x-graphing-calculator”, “gcf”);

add(“application/x-gtar”, “gtar”);

add(“application/x-gtar”, “tgz”);

add(“application/x-gtar”, “taz”);

add(“application/x-hdf”, “hdf”);

add(“application/x-ica”, “ica”);

add(“application/x-internet-signup”, “ins”);

add(“application/x-internet-signup”, “isp”);

add(“application/x-iphone”, “iii”);

add(“application/x-iso9660-image”, “iso”);

add(“application/x-jmol”, “jmz”);

add(“application/x-kchart”, “chrt”);

add(“application/x-killustrator”, “kil”);

add(“application/x-koan”, “skp”);

add(“application/x-koan”, “skd”);

add(“application/x-koan”, “skt”);

add(“application/x-koan”, “skm”);

add(“application/x-kpresenter”, “kpr”);

add(“application/x-kpresenter”, “kpt”);

add(“application/x-kspread”, “ksp”);

add(“application/x-kword”, “kwd”);

add(“application/x-kword”, “kwt”);

add(“application/x-latex”, “latex”);

add(“application/x-lha”, “lha”);

add(“application/x-lzh”, “lzh”);

add(“application/x-lzx”, “lzx”);

add(“application/x-maker”, “frm”);

add(“application/x-maker”, “maker”);

add(“application/x-maker”, “frame”);

add(“application/x-maker”, “fb”);

add(“application/x-maker”, “book”);

add(“application/x-maker”, “fbdoc”);

add(“application/x-mif”, “mif”);

add(“application/x-ms-wmd”, “wmd”);

add(“application/x-ms-wmz”, “wmz”);

add(“application/x-msi”, “msi”);

add(“application/x-ns-proxy-autoconfig”, “pac”);

add(“application/x-nwc”, “nwc”);

add(“application/x-object”, “o”);

add(“application/x-oz-application”, “oza”);

add(“application/x-pkcs12”, “p12”);

add(“application/x-pkcs7-certreqresp”, “p7r”);

add(“application/x-pkcs7-crl”, “crl”);

add(“application/x-quicktimeplayer”, “qtl”);

add(“application/x-shar”, “shar”);

add(“application/x-shockwave-flash”, “swf”);

add(“application/x-stuffit”, “sit”);

add(“application/x-sv4cpio”, “sv4cpio”);

add(“application/x-sv4crc”, “sv4crc”);

add(“application/x-tar”, “tar”);

add(“application/x-texinfo”, “texinfo”);

add(“application/x-texinfo”, “texi”);

add(“application/x-troff”, “t”);

add(“application/x-troff”, “roff”);

add(“application/x-troff-man”, “man”);

add(“application/x-ustar”, “ustar”);

add(“application/x-wais-source”, “src”);

add(“application/x-wingz”, “wz”);

add(“application/x-webarchive”, “webarchive”);

add(“application/x-webarchive-xml”, “webarchivexml”);

add(“application/x-x509-ca-cert”, “crt”);

add(“application/x-x509-user-cert”, “crt”);

add(“application/x-xcf”, “xcf”);

add(“application/x-xfig”, “fig”);

add(“application/xhtml+xml”, “xhtml”);

add(“audio/3gpp”, “3gpp”);

add(“audio/amr”, “amr”);

add(“audio/basic”, “snd”);

add(“audio/midi”, “mid”);

add(“audio/midi”, “midi”);

add(“audio/midi”, “kar”);

add(“audio/midi”, “xmf”);

add(“audio/mobile-xmf”, “mxmf”);

add(“audio/mpeg”, “mpga”);

add(“audio/mpeg”, “mpega”);

add(“audio/mpeg”, “mp2”);

add(“audio/mpeg”, “mp3”);

add(“audio/mpeg”, “m4a”);

add(“audio/mpegurl”, “m3u”);

add(“audio/prs.sid”, “sid”);

add(“audio/x-aiff”, “aif”);

add(“audio/x-aiff”, “aiff”);

add(“audio/x-aiff”, “aifc”);

add(“audio/x-gsm”, “gsm”);

add(“audio/x-mpegurl”, “m3u”);

add(“audio/x-ms-wma”, “wma”);

add(“audio/x-ms-wax”, “wax”);

add(“audio/x-pn-realaudio”, “ra”);

add(“audio/x-pn-realaudio”, “rm”);

add(“audio/x-pn-realaudio”, “ram”);

add(“audio/x-realaudio”, “ra”);

add(“audio/x-scpls”, “pls”);

add(“audio/x-sd2”, “sd2”);

add(“audio/x-wav”, “wav”);

add(“image/bmp”, “bmp”);

add(“audio/x-qcp”, “qcp”);

add(“image/gif”, “gif”);

add(“image/ico”, “cur”);

add(“image/ico”, “ico”);

add(“image/ief”, “ief”);

add(“image/jpeg”, “jpeg”);

add(“image/jpeg”, “jpg”);

add(“image/jpeg”, “jpe”);

add(“image/pcx”, “pcx”);

add(“image/png”, “png”);

add(“image/svg+xml”, “svg”);

add(“image/svg+xml”, “svgz”);

add(“image/tiff”, “tiff”);

add(“image/tiff”, “tif”);

add(“image/vnd.djvu”, “djvu”);

add(“image/vnd.djvu”, “djv”);

add(“image/vnd.wap.wbmp”, “wbmp”);

add(“image/x-cmu-raster”, “ras”);

add(“image/x-coreldraw”, “cdr”);

add(“image/x-coreldrawpattern”, “pat”);

add(“image/x-coreldrawtemplate”, “cdt”);

add(“image/x-corelphotopaint”, “cpt”);

add(“image/x-icon”, “ico”);

add(“image/x-jg”, “art”);

add(“image/x-jng”, “jng”);

add(“image/x-ms-bmp”, “bmp”);

add(“image/x-photoshop”, “psd”);

add(“image/x-portable-anymap”, “pnm”);

add(“image/x-portable-bitmap”, “pbm”);

add(“image/x-portable-graymap”, “pgm”);

add(“image/x-portable-pixmap”, “ppm”);

add(“image/x-rgb”, “rgb”);

add(“image/x-xbitmap”, “xbm”);

add(“image/x-xpixmap”, “xpm”);

add(“image/x-xwindowdump”, “xwd”);

add(“model/iges”, “igs”);

add(“model/iges”, “iges”);

add(“model/mesh”, “msh”);

add(“model/mesh”, “mesh”);

add(“model/mesh”, “silo”);

add(“text/calendar”, “ics”);

add(“text/calendar”, “icz”);

add(“text/comma-separated-values”, “csv”);

add(“text/css”, “css”);

add(“text/html”, “htm”);

add(“text/html”, “html”);

add(“text/h323”, “323”);

add(“text/iuls”, “uls”);

add(“text/mathml”, “mml”);

// add “.txt” first so it will be the default for ExtensionFromMimeType

add(“text/plain”, “txt”);

add(“text/plain”, “asc”);

add(“text/plain”, “text”);

add(“text/plain”, “diff”);

add(“text/plain”, “po”);     // reserve “pot” for vnd.ms-powerpoint

add(“text/richtext”, “rtx”);

add(“text/rtf”, “rtf”);

add(“text/texmacs”, “ts”);

add(“text/text”, “phps”);

add(“text/tab-separated-values”, “tsv”);

add(“text/xml”, “xml”);

add(“text/x-bibtex”, “bib”);

add(“text/x-boo”, “boo”);

add(“text/x-c++hdr”, “h++”);

add(“text/x-c++hdr”, “hpp”);

add(“text/x-c++hdr”, “hxx”);

add(“text/x-c++hdr”, “hh”);

add(“text/x-c++src”, “c++”);

add(“text/x-c++src”, “cpp”);

add(“text/x-c++src”, “cxx”);

add(“text/x-chdr”, “h”);

add(“text/x-component”, “htc”);

add(“text/x-csh”, “csh”);

add(“text/x-csrc”, “c”);

add(“text/x-dsrc”, “d”);

add(“text/x-haskell”, “hs”);

add(“text/x-java”, “java”);

add(“text/x-literate-haskell”, “lhs”);

add(“text/x-moc”, “moc”);

add(“text/x-pascal”, “p”);

add(“text/x-pascal”, “pas”);

add(“text/x-pcs-gcd”, “gcd”);

add(“text/x-setext”, “etx”);

add(“text/x-tcl”, “tcl”);

add(“text/x-tex”, “tex”);

add(“text/x-tex”, “ltx”);

add(“text/x-tex”, “sty”);

add(“text/x-tex”, “cls”);

add(“text/x-vcalendar”, “vcs”);

add(“text/x-vcard”, “vcf”);

add(“video/3gpp”, “3gpp”);

add(“video/3gpp”, “3gp”);

add(“video/3gpp”, “3g2”);

add(“video/dl”, “dl”);

add(“video/dv”, “dif”);

add(“video/dv”, “dv”);

add(“video/fli”, “fli”);

add(“video/m4v”, “m4v”);

add(“video/mpeg”, “mpeg”);

add(“video/mpeg”, “mpg”);

add(“video/mpeg”, “mpe”);

add(“video/mp4”, “mp4”);

add(“video/mpeg”, “VOB”);

add(“video/quicktime”, “qt”);

add(“video/quicktime”, “mov”);

add(“video/vnd.mpegurl”, “mxu”);

add(“video/webm”, “webm”);

add(“video/x-la-asf”, “lsf”);

add(“video/x-la-asf”, “lsx”);

add(“video/x-mng”, “mng”);

add(“video/x-ms-asf”, “asf”);

add(“video/x-ms-asf”, “asx”);

add(“video/x-ms-wm”, “wm”);

add(“video/x-ms-wmv”, “wmv”);

add(“video/x-ms-wmx”, “wmx”);

add(“video/x-ms-wvx”, “wvx”);

add(“video/x-msvideo”, “avi”);

add(“video/x-sgi-movie”, “movie”);

add(“x-conference/x-cooltalk”, “ice”);

add(“x-epoc/x-sisx-app”, “sisx”);

applyOverrides();

}

private static void add(String mimeType, String extension) {


//

// if we have an existing x –> y mapping, we do not want to

// override it with another mapping x –> ?

// this is mostly because of the way the mime-type map below

// is constructed (if a mime type maps to several extensions

// the first extension is considered the most popular and is

// added first; we do not want to overwrite it later).

//

if (!mimeTypeToExtensionMap.containsKey(mimeType)) {


mimeTypeToExtensionMap.put(mimeType, extension);

}

extensionToMimeTypeMap.put(extension, mimeType);

}

private static InputStream getContentTypesPropertiesStream() {


// User override?

String userTable = System.getProperty(“content.types.user.table”);

if (userTable != null) {


File f = new File(userTable);

if (f.exists()) {


try {


return new FileInputStream(f);

} catch (IOException ignored) {


}

}

}

// Standard location?

File f = new File(System.getProperty(“java.home”), “lib” + File.separator + “content-types.properties”);

if (f.exists()) {


try {


return new FileInputStream(f);

} catch (IOException ignored) {


}

}

return null;

}

}

IntentBuilder是打开文件代码

public class IntentBuilder {

public static void viewFile(final Context context, final String filePath) {


String type = getMimeType(filePath);

if (!TextUtils.isEmpty(type) && !TextUtils.equals(type, “*/*”)) {


/* 设置intent的file与MimeType */

Intent intent = new Intent();

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setAction(android.content.Intent.ACTION_VIEW);

intent.setDataAndType(Uri.fromFile(new File(filePath)), type);

context.startActivity(intent);

} else {


// unknown MimeType

Log.i(“lei”, “le”);

AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context);

dialogBuilder.setTitle(R.string.dialog_select_type);

CharSequence[] menuItemArray = new CharSequence[] {


context.getString(R.string.dialog_type_text),

context.getString(R.string.dialog_type_audio),

context.getString(R.string.dialog_type_video),

context.getString(R.string.dialog_type_image) };

//CharSequence[] menuItemArray = new CharSequence[] {“文本”, “音频”, “视频”, “图像”};

dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() {


@Override

public void onClick(DialogInterface dialog, int which) {


String selectType = “*/*”;

switch (which) {


case 0:

selectType = “text/plain”;

break;

case 1:

selectType = “audio/*”;

break;

case 2:

selectType = “video/*”;

break;

case 3:

selectType = “image/*”;

break;

}

Intent intent = new Intent();

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setAction(android.content.Intent.ACTION_VIEW);

intent.setDataAndType(Uri.fromFile(new File(filePath)), selectType);

context.startActivity(intent);

}

});

dialogBuilder.show();

}

}

private static String getMimeType(String filePath) {


int dotPosition = filePath.lastIndexOf(‘.’);

if (dotPosition == -1)

return “*/*”;

String ext = filePath.substring(dotPosition + 1, filePath.length()).toLowerCase();

String mimeType = MimeUtils.guessMimeTypeFromExtension(ext);

if (ext.equals(“mtz”)) {


mimeType = “application/miui-mtz”;

}

return mimeType != null ? mimeType : “*/*”;

}

}

调用直接用 IntentBuilder.viewFile(this, “文件地址”);

代码地址如下






http://download.csdn.net/detail/zaiyong/7712737