android文件关联之mime type

原文：http://www.cnblogs.com/wanqieddy/archive/2011/08/08/2131080.html

在manifest文件里->activity 添加

<intent-filter>

     <action android:name="android.intent.action.VIEW" />

     <category android:name="android.intent.category.DEFAULT" />

     <data android:mimeType="*/*">

</intent-filter>

这样就把当前程序注册为 可以打开/查看所有类型的文件. 或者要查看jpeg, mimeType要改为: image/jpeg

当在文件管理器里点击任何文件, 系统都会试图去执行你的程序.

 

--------------------------------------------分割线---------------------------------------- http://blog.csdn.net/aide1986/archive/2010/04/27/5536530.aspx 一个合法的File Manager在执行Open动作时，应该是发出一个Intent.VIEW Action。所以你的intent-filter应该是这样子的：

<intent-filter>  

<action android:name="android.intent.action.VIEW" />  

<category android:name="android.intent.category.DEFAULT" />  

<category android:name="android.intent.category.BROWSABLE" />  

<data android:scheme="file" />  

<data android:mimeType="*/*" />  

<data android:host="*" />  

<data android:pathPattern=".*\\.txt" />  

</intent-filter>  

<intent-filter>  

<action android:name="android.intent.action.VIEW" />  

<category android:name="android.intent.category.DEFAULT" />  

<category android:name="android.intent.category.BROWSABLE" />  

<data android:scheme="content" />  

<data android:host="*" />  

<data android:pathPattern=".*\\.txt" />  

</intent-filter>   

在这当中，data块缺一不可，你必须同时申明android:scheme, android:host, android:pathPattern, 方可令pathPattern正确生效。对于content scheme，将会匹配诸如：content://com.metago.astro.filesystem/sdcard/txt /pg17155.txt 这样的请求，你的Activity将可以有效地打开这样的txt文件。对于file scheme，大致会匹配诸如：file:///sdcard/txt/pg17155.txt这样的请求，并且，如果有必要，你可以加入
android:mimeType限定。

也就是说，尽管Android SDK的层面上，你不可能了解到哪些mime已经注册，一个自定义的mime如何注册，但对于基础系统(linux os layer)来说，内置的mime type还是存在的，这方面你可以参考Intent SDK文档和Notebook SDK Sample获得一鳞半爪的信息。
对于你自己想要关联的文件后缀，则应该使用上面的intent-filter组合来完成关联。

一旦intent-filter关联完成，在Activity的onCreate，onNewIntent中将可通过：

Intent intent=getIntent();

Uri uri=(Uri)intent.getData();

String path=uri.getPath();

 

序列获得关联打开文件的绝对路径。
这样的方法在ASTRO文件管理器中测试通过，并且在另一个测试project中进行了测试和证明机制有效。不过，在Root Explorer，And Explorer中均失败了，原因正在于这几个浏览器并不执行符合Android SDK规范的File Open操作。

可见，随意性是值得注意的坏招数。
--------------------------------------------分割线----------------------------------------
我们看一下 android 文件的mime类型：

{".3gp",
"video/3gpp"},

　　{".apk",
"application/vnd.android.package-archive"},

　　{".asf",
"video/x-ms-asf"},

　　{".avi",
"video/x-msvideo"},

　　{".bin",
"application/octet-stream"},

　　{".bmp",
"image/bmp"},

　　{".c",
"text/plain"},

　　{".class",
"application/octet-stream"},

　　{".conf",
"text/plain"},

　　{".cpp",
"text/plain"},

　　{".doc",
"application/msword"},

　　{".exe",
"application/octet-stream"},

　　{".gif",
"image/gif"},

　　{".gtar",
"application/x-gtar"},

　　{".gz",
"application/x-gzip"},

　　{".h",
"text/plain"},

　　{".htm",
"text/html"},

　　{".html",
"text/html"},

　　{".jar",
"application/java-archive"},

　　{".java",
"text/plain"},

　　{".jpeg",
"image/jpeg"},

　　{".jpg",
"image/jpeg"},

　　{".js",
"application/x-javascript"},

　　{".log",
"text/plain"},

　　{".m3u",
"audio/x-mpegurl"},

　　{".m4a",
"audio/mp4a-latm"},

　　{".m4b",
"audio/mp4a-latm"},

　　{".m4p",
"audio/mp4a-latm"},

　　{".m4u",
"video/vnd.mpegurl"},

　　{".m4v",
"video/x-m4v"},

　　{".mov",
"video/quicktime"},

　　{".mp2",
"audio/x-mpeg"},

　　{".mp3",
"audio/x-mpeg"},

　　{".mp4",
"video/mp4"},

　　{".mpc",
"application/vnd.mpohun.certificate"},

　　{".mpe",
"video/mpeg"},

　　{".mpeg",
"video/mpeg"},

　　{".mpg",
"video/mpeg"},

{".mpg4",
"video/mp4"},

　　{".mpga",
"audio/mpeg"},

　　{".msg",
"application/vnd.ms-outlook"},

　　{".ogg",
"audio/ogg"},

　　{".pdf",
"application/pdf"},

　　{".png",
"image/png"},

　　{".pps",
"application/vnd.ms-powerpoint"},

　　{".ppt",
"application/vnd.ms-powerpoint"},

　　{".prop",
"text/plain"},

　　{".rar",
"application/x-rar-compressed"},

　　{".rc",
"text/plain"},

　　{".rmvb",
"audio/x-pn-realaudio"},

　　{".rtf",
"application/rtf"},

　　{".sh",
"text/plain"},

　　{".tar",
"application/x-tar"},

　　{".tgz",
"application/x-compressed"},

　　{".txt",
"text/plain"},

　　{".wav",
"audio/x-wav"},

　　{".wma",
"audio/x-ms-wma"},

　　{".wmv",
"audio/x-ms-wmv"},

　　{".wps",
"application/vnd.ms-works"},

　　//{".xml", "text/xml"},
　　{".xml",
"text/plain"},

　　{".z",
"application/x-compress"},

　　{".zip",
"application/zip"},

　　{"",
"*/*"}

 

另：
3gp video/3gpp

　　aab application/x-authoware-bin

　　aam application/x-authoware-map

　　aas application/x-authoware-seg

　　ai application/postscript

　　aif audio/x-aiff

　　aifc audio/x-aiff

　　aiff audio/x-aiff

　　als audio/X-Alpha5

　　amc application/x-mpeg

　　ani application/octet-stream
      apk application/vnd.android.package-archive

　　asc text/plain

　　asd application/astound

　　asf video/x-ms-asf

　　asn application/astound

　　asp application/x-asap

　　asx video/x-ms-asf

　　au audio/basic

　　avb application/octet-stream

　　avi video/x-msvideo

　　awb audio/amr-wb

　　bcpio application/x-bcpio

　　bin application/octet-stream

　　bld application/bld

　　bld2 application/bld2

      bmp image/bmp

　　bpk application/octet-stream

　　bz2 application/x-bzip2

　　cal image/x-cals

　　ccn application/x-cnc

　　cco application/x-cocoa

　　cdf application/x-netcdf

　　cgi magnus-internal/cgi

　　chat application/x-chat

　　class application/octet-stream

　　clp application/x-msclip

　　cmx application/x-cmx

　　co application/x-cult3d-object

　　cod image/cis-cod

　　cpio application/x-cpio

　　cpt application/mac-compactpro

　　crd application/x-mscardfile

　　csh application/x-csh

　　csm chemical/x-csml

　　csml chemical/x-csml

　　css text/css

　　cur application/octet-stream

　　dcm x-lml/x-evm

　　dcr application/x-director

　　dcx image/x-dcx

　　dhtml text/html

　　dir application/x-director

　　dll application/octet-stream

　　dmg application/octet-stream

　　dms application/octet-stream

　　doc application/msword

　　dot application/x-dot

　　dvi application/x-dvi

　　dwf drawing/x-dwf

　　dwg application/x-autocad

　　dxf application/x-autocad

　　dxr application/x-director

　　ebk application/x-expandedbook

　　emb chemical/x-embl-dl-nucleotide

　　embl chemical/x-embl-dl-nucleotide

　　eps application/postscript

　　eri image/x-eri

　　es audio/echospeech

　　esl audio/echospeech

　　etc application/x-earthtime

　　etx text/x-setext

　　evm x-lml/x-evm

　　evy application/x-envoy

　　exe application/octet-stream

　　fh4 image/x-freehand

　　fh5 image/x-freehand

　　fhc image/x-freehand

　　fif image/fif

　　fm application/x-maker

　　fpx image/x-fpx

　　fvi video/isivideo

　　gau chemical/x-gaussian-input

　　gca application/x-gca-compressed

　　gdb x-lml/x-gdb

　　gif image/gif

　　gps application/x-gps

　　gtar application/x-gtar

　　gz application/x-gzip

　　hdf application/x-hdf

　　hdm text/x-hdml

　　hdml text/x-hdml

　　hlp application/winhlp

　　hqx application/mac-binhex40

　　htm text/html

　　html text/html

　　hts text/html

　　ice x-conference/x-cooltalk

　　ico application/octet-stream

　　ief image/ief

　　ifm image/gif

　　ifs image/ifs

　　imy audio/melody

　　ins application/x-NET-Install

　　ips application/x-ipscript

　　ipx application/x-ipix

　　it audio/x-mod

　　itz audio/x-mod

　　ivr i-world/i-vrml

　　j2k image/j2k

　　jad text/vnd.sun.j2me.app-descriptor

　　jam application/x-jam

　　jar application/java-archive

　　jnlp application/x-java-jnlp-file

　　jpe image/jpeg

　　jpeg image/jpeg

　　jpg image/jpeg

　　jpz image/jpeg

　　js application/x-javascript

　　jwc application/jwc

　　kjx application/x-kjx

　　lak x-lml/x-lak

　　latex application/x-latex

　　lcc application/fastman

　　lcl application/x-digitalloca

　　lcr application/x-digitalloca

　　lgh application/lgh

　　lha application/octet-stream

　　lml x-lml/x-lml

　　lmlpack x-lml/x-lmlpack

　　lsf video/x-ms-asf

　　lsx video/x-ms-asf

　　lzh application/x-lzh

　　m13 application/x-msmediaview

　　m14 application/x-msmediaview

　　m15 audio/x-mod

　　m3u audio/x-mpegurl

　　m3url audio/x-mpegurl

　　ma1 audio/ma1

　　ma2 audio/ma2

　　ma3 audio/ma3

　　ma5 audio/ma5

　　man application/x-troff-man

　　map magnus-internal/imagemap

　　mbd application/mbedlet

　　mct application/x-mascot

　　mdb application/x-msaccess

　　mdz audio/x-mod

　　me application/x-troff-me

　　mel text/x-vmel

　　mi application/x-mif

　　mid audio/midi

　　midi audio/midi

　　mif application/x-mif

　　mil image/x-cals

　　mio audio/x-mio

　　mmf application/x-skt-lbs

　　mng video/x-mng

　　mny application/x-msmoney

　　moc application/x-mocha

　　mocha application/x-mocha

　　mod audio/x-mod

　　mof application/x-yumekara

　　mol chemical/x-mdl-molfile

　　mop chemical/x-mopac-input

　　mov video/quicktime

　　movie video/x-sgi-movie

　　mp2 audio/x-mpeg

　　mp3 audio/x-mpeg

　　mp4 video/mp4

　　mpc application/vnd.mpohun.certificate

　　mpe video/mpeg

　　mpeg video/mpeg

　　mpg video/mpeg

　　mpg4 video/mp4

　　mpga audio/mpeg

　　mpn application/vnd.mophun.application

　　mpp application/vnd.ms-project

　　mps application/x-mapserver

　　mrl text/x-mrml

　　mrm application/x-mrm

　　ms application/x-troff-ms

　　mts application/metastream

　　mtx application/metastream

　　mtz application/metastream

　　mzv application/metastream

　　nar application/zip

　　nbmp image/nbmp

　　nc application/x-netcdf

　　ndb x-lml/x-ndb

　　ndwn application/ndwn

　　nif application/x-nif

　　nmz application/x-scream

　　nokia-op-logo image/vnd.nok-oplogo-color

　　npx application/x-netfpx

　　nsnd audio/nsnd

　　nva application/x-neva1

　　oda application/oda

　　oom application/x-AtlasMate-Plugin

　　pac audio/x-pac

　　pae audio/x-epac

　　pan application/x-pan

　　pbm image/x-portable-bitmap

　　pcx image/x-pcx

　　pda image/x-pda

　　pdb chemical/x-pdb

　　pdf application/pdf

　　pfr application/font-tdpfr

　　pgm image/x-portable-graymap

　　pict image/x-pict

　　pm application/x-perl

　　pmd application/x-pmd

　　png image/png

　　pnm image/x-portable-anymap

　　pnz image/png

　　pot application/vnd.ms-powerpoint

　　ppm image/x-portable-pixmap

　　pps application/vnd.ms-powerpoint

　　ppt application/vnd.ms-powerpoint

　　pqf application/x-cprplayer

　　pqi application/cprplayer

　　prc application/x-prc

　　proxy application/x-ns-proxy-autoconfig

　　ps application/postscript

　　ptlk application/listenup

　　pub application/x-mspublisher

　　pvx video/x-pv-pvx

　　qcp audio/vnd.qcelp

　　qt video/quicktime

　　qti image/x-quicktime

　　qtif image/x-quicktime

　　r3t text/vnd.rn-realtext3d

　　ra audio/x-pn-realaudio

　　ram audio/x-pn-realaudio

　　rar application/x-rar-compressed

　　ras image/x-cmu-raster

　　rdf application/rdf+xml

　　rf image/vnd.rn-realflash

　　rgb image/x-rgb

　　rlf application/x-richlink

　　rm audio/x-pn-realaudio

　　rmf audio/x-rmf

　　rmm audio/x-pn-realaudio

　　rmvb audio/x-pn-realaudio

　　rnx application/vnd.rn-realplayer

　　roff application/x-troff

　　rp image/vnd.rn-realpix

　　rpm audio/x-pn-realaudio-plugin

　　rt text/vnd.rn-realtext

　　rte x-lml/x-gps

　　rtf application/rtf

　　rtg application/metastream

　　rtx text/richtext

　　rv video/vnd.rn-realvideo

　　rwc application/x-rogerwilco

　　s3m audio/x-mod

　　s3z audio/x-mod

　　sca application/x-supercard

　　scd application/x-msschedule

　　sdf application/e-score

　　sea application/x-stuffit

　　sgm text/x-sgml

　　sgml text/x-sgml

　　sh application/x-sh

　　shar application/x-shar

　　shtml magnus-internal/parsed-html

　　shw application/presentations

　　si6 image/si6

　　si7 image/vnd.stiwap.sis

　　si9 image/vnd.lgtwap.sis

　　sis application/vnd.symbian.install

　　sit application/x-stuffit

　　skd application/x-Koan

　　skm application/x-Koan

　　skp application/x-Koan

　　skt application/x-Koan

　　slc application/x-salsa

　　smd audio/x-smd

　　smi application/smil

　　smil application/smil

　　smp application/studiom

　　smz audio/x-smd

　　snd audio/basic

　　spc text/x-speech

　　spl application/futuresplash

　　spr application/x-sprite

　　sprite application/x-sprite

　　spt application/x-spt

　　src application/x-wais-source

　　stk application/hyperstudio

　　stm audio/x-mod

　　sv4cpio application/x-sv4cpio

　　sv4crc application/x-sv4crc

　　svf image/vnd

　　svg image/svg-xml

　　svh image/svh

　　svr x-world/x-svr

　　swf application/x-shockwave-flash

　　swfl application/x-shockwave-flash

　　t application/x-troff

　　tad application/octet-stream

　　talk text/x-speech

　　tar application/x-tar

　　taz application/x-tar

　　tbp application/x-timbuktu

　　tbt application/x-timbuktu

　　tcl application/x-tcl

　　tex application/x-tex

　　texi application/x-texinfo

　　texinfo application/x-texinfo

　　tgz application/x-tar

　　thm application/vnd.eri.thm

　　tif image/tiff

　　tiff image/tiff

　　tki application/x-tkined

　　tkined application/x-tkined

　　toc application/toc

　　toy image/toy

　　tr application/x-troff

　　trk x-lml/x-gps

　　trm application/x-msterminal

　　tsi audio/tsplayer

　　tsp application/dsptype

　　tsv text/tab-separated-values

　　tsv text/tab-separated-values

　　ttf application/octet-stream

　　ttz application/t-time

　　txt text/plain

　　ult audio/x-mod

　　ustar application/x-ustar

　　uu application/x-uuencode

　　uue application/x-uuencode

　　vcd application/x-cdlink

　　vcf text/x-vcard

　　vdo video/vdo

　　vib audio/vib

　　viv video/vivo

　　vivo video/vivo

　　vmd application/vocaltec-media-desc

　　vmf application/vocaltec-media-file

　　vmi application/x-dreamcast-vms-info

　　vms application/x-dreamcast-vms

　　vox audio/voxware

　　vqe audio/x-twinvq-plugin

　　vqf audio/x-twinvq

　　vql audio/x-twinvq

　　vre x-world/x-vream

　　vrml x-world/x-vrml

　　vrt x-world/x-vrt

　　vrw x-world/x-vream

　　vts workbook/formulaone

　　wav audio/x-wav

　　wax audio/x-ms-wax

　　wbmp image/vnd.wap.wbmp

　　web application/vnd.xara

　　wi image/wavelet

　　wis application/x-InstallShield

　　wm video/x-ms-wm

　　wma audio/x-ms-wma

　　wmd application/x-ms-wmd

　　wmf application/x-msmetafile

　　wml text/vnd.wap.wml

　　wmlc application/vnd.wap.wmlc

　　wmls text/vnd.wap.wmlscript

　　wmlsc application/vnd.wap.wmlscriptc

　　wmlscript text/vnd.wap.wmlscript

　　wmv audio/x-ms-wmv

　　wmx video/x-ms-wmx

　　wmz application/x-ms-wmz

　　wpng image/x-up-wpng

　　wpt x-lml/x-gps

　　wri application/x-mswrite

　　wrl x-world/x-vrml

　　wrz x-world/x-vrml

　　ws text/vnd.wap.wmlscript

　　wsc application/vnd.wap.wmlscriptc

　　wv video/wavelet

　　wvx video/x-ms-wvx

　　wxl application/x-wxl

　　x-gzip application/x-gzip

　　xar application/vnd.xara

　　xbm image/x-xbitmap

　　xdm application/x-xdma

　　xdma application/x-xdma

　　xdw application/vnd.fujixerox.docuworks

　　xht application/xhtml+xml

　　xhtm application/xhtml+xml

　　xhtml application/xhtml+xml

　　xla application/vnd.ms-excel

　　xlc application/vnd.ms-excel

　　xll application/x-excel

　　xlm application/vnd.ms-excel

　　xls application/vnd.ms-excel

　　xlt application/vnd.ms-excel

　　xlw application/vnd.ms-excel

　　xm audio/x-mod

　　xml text/xml

　　xmz audio/x-mod

　　xpi application/x-xpinstall

　　xpm image/x-xpixmap

　　xsit text/xml

　　xsl text/xml

　　xul text/xul

　　xwd image/x-xwindowdump

　　xyz chemical/x-pdb

　　yz1 application/x-yz1

　　z application/x-compress

　　zac application/x-zaurus-zac

　　zip application/zip