android 打开各种文件（setDataAndType）

Java代码  /**

 * 打开文件

 * @param file

 */ 

private void openFile(File file){ 

     

    Intent intent = new Intent(); 

    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

    //设置intent的Action属性 

    intent.setAction(Intent.ACTION_VIEW); 

    //获取文件file的MIME类型 

    String type = getMIMEType(file); 

    //设置intent的data和Type属性。 

    intent.setDataAndType(/*uri*/Uri.fromFile(file), type); //   
public Intent setDataAndType(Uri data, String type)
    //跳转 

    startActivity(intent);     //这里最好try一下，有可能会报错。 //比如说你的MIME类型是打开邮箱，但是你手机里面没装邮箱客户端，就会报错。

     

} 

 

/**

 * 根据文件后缀名获得对应的MIME类型。

 * @param file

 */ 

private String getMIMEType(File file) { 

     

    String type="*/*"; 

    String fName = file.getName(); 

    //获取后缀名前的分隔符"."在fName中的位置。 

    int dotIndex = fName.lastIndexOf("."); 

    if(dotIndex < 0){ 

        return type; 

    } 

    /* 获取文件的后缀名*/ 

    String end=fName.substring(dotIndex,fName.length()).toLowerCase(); 

    if(end=="")return type; 

    //在MIME和文件类型的匹配表中找到对应的MIME类型。 

    for(int i=0;i<MIME_MapTable.length;i++){ //MIME_MapTable??在这里你一定有疑问，这个MIME_MapTable是什么？ 

        if(end.equals(MIME_MapTable[i][0])) 

            type = MIME_MapTable[i][1]; 

    }        

    return type; 

} 
 

====================== 常用 type =========================

一、music：

String file_type = "audio/*";

二、movice：

String file_type = "video/*";

三、pdf：

String file_type = "application/*";

四、picture：

String file_type = "image/*";

================================================

".*"="application/octet-stream"  
".001"="application/x-001"  
".301"="application/x-301"  
".323"="text/h323"  
".906"="application/x-906"  
".907"="drawing/907"  
".a11"="application/x-a11"  
".acp"="audio/x-mei-aac"  
".ai"="application/postscript"  
".aif"="audio/aiff"  
".aifc"="audio/aiff"  
".aiff"="audio/aiff"  
".anv"="application/x-anv"  
".asa"="text/asa"  
".asf"="video/x-ms-asf"  
".asp"="text/asp"  
".asx"="video/x-ms-asf"  
".au"="audio/basic"  
".avi"="video/avi"  
".awf"="application/vnd.adobe.workflow"  
".biz"="text/xml"  
".bmp"="application/x-bmp"  
".bot"="application/x-bot"  
".c4t"="application/x-c4t"  
".c90"="application/x-c90"  
".cal"="application/x-cals"  
".cat"="application/vnd.ms-pki.seccat"  
".cdf"="application/x-netcdf"  
".cdr"="application/x-cdr"  
".cel"="application/x-cel"  
".cer"="application/x-x509-ca-cert"  
".cg4"="application/x-g4"  
".cgm"="application/x-cgm"  
".cit"="application/x-cit"  
".class"="java/*"  
".cml"="text/xml"  
".cmp"="application/x-cmp"  
".cmx"="application/x-cmx"  
".cot"="application/x-cot"  
".crl"="application/pkix-crl"  
".crt"="application/x-x509-ca-cert"  
".csi"="application/x-csi"  
".css"="text/css"  
".cut"="application/x-cut"  
".dbf"="application/x-dbf"  
".dbm"="application/x-dbm"  
".dbx"="application/x-dbx"  
".dcd"="text/xml"  
".dcx"="application/x-dcx"  
".der"="application/x-x509-ca-cert"  
".dgn"="application/x-dgn"  
".dib"="application/x-di
ec66
b"  
".dll"="application/x-msdownload"  
".doc"="application/msword"  
".dot"="application/msword"  
".drw"="application/x-drw"  
".dtd"="text/xml"  
".dwf"="Model/vnd.dwf"  
".dwf"="application/x-dwf"  
".dwg"="application/x-dwg"  
".dxb"="application/x-dxb"  
".dxf"="application/x-dxf"  
".edn"="application/vnd.adobe.edn"  
".emf"="application/x-emf"  
".eml"="message/rfc822"  
".ent"="text/xml"  
".epi"="application/x-epi"  
".eps"="application/x-ps"  
".eps"="application/postscript"  
".etd"="application/x-ebx"  
".exe"="application/x-msdownload"  
".fax"="image/fax"  
".fdf"="application/vnd.fdf"  
".fif"="application/fractals"  
".fo"="text/xml"  
".frm"="application/x-frm"  
".g4"="application/x-g4"  
".gbr"="application/x-gbr"  
".gcd"="application/x-gcd"  
".gif"="image/gif"  
".gl2"="application/x-gl2"  
".gp4"="application/x-gp4"  
".hgl"="application/x-hgl"  
".hmr"="application/x-hmr"  
".hpg"="application/x-hpgl"  
".hpl"="application/x-hpl"  
".hqx"="application/mac-binhex40"  
".hrf"="application/x-hrf"  
".hta"="application/hta"  
".htc"="text/x-component"  
".htm"="text/html"  
".html"="text/html"  
".htt"="text/webviewhtml"  
".htx"="text/html"  
".icb"="application/x-icb"  
".ico"="image/x-icon"  
".ico"="application/x-ico"  
".iff"="application/x-iff"  
".ig4"="application/x-g4"  
".igs"="application/x-igs"  
".iii"="application/x-iphone"  
".img"="application/x-img"  
".ins"="application/x-internet-signup"  
".isp"="application/x-internet-signup"  
".IVF"="video/x-ivf"  
".java"="java/*"  
".jfif"="image/jpeg"  
".jpe"="image/jpeg"  
".jpe"="application/x-jpe"  
".jpeg"="image/jpeg"  
".jpg"="image/jpeg"  
".jpg"="application/x-jpg"  
".js"="application/x-javascript"  
".jsp"="text/html"  
".la1"="audio/x-liquid-file"  
".lar"="application/x-laplayer-reg"  
".latex"="application/x-latex"  
".lavs"="audio/x-liquid-secure"  
".lbm"="application/x-lbm"  
".lmsff"="audio/x-la-lms"  
".ls"="application/x-javascript"  
".ltr"="application/x-ltr"  
".m1v"="video/x-mpeg"  
".m2v"="video/x-mpeg"  
".m3u"="audio/mpegurl"  
".m4e"="video/mpeg4"  
".mac"="application/x-mac"  
".man"="application/x-troff-man"  
".math"="text/xml"  
".mdb"="application/msaccess"  
".mdb"="application/x-mdb"  
".mfp"="application/x-shockwave-flash"  
".mht"="message/rfc822"  
".mhtml"="message/rfc822"  
".mi"="application/x-mi"  
".mid"="audio/mid"  
".midi"="audio/mid"  
".mil"="application/x-mil"  
".mml"="text/xml"  
".mnd"="audio/x-musicnet-download"  
".mns"="audio/x-musicnet-stream"  
".mocha"="application/x-javascript"  
".movie"="video/x-sgi-movie"  
".mp1"="audio/mp1"  
".mp2"="audio/mp2"  
".mp2v"="video/mpeg"  
".mp3"="audio/mp3"  
".mp4"="video/mpeg4"  
".mpa"="video/x-mpg"  
".mpd"="application/vnd.ms-project"  
".mpe"="video/x-mpeg"  
".mpeg"="video/mpg"  
".mpg"="video/mpg"  
".mpga"="audio/rn-mpeg"  
".mpp"="application/vnd.ms-project"  
".mps"="video/x-mpeg"  
".mpt"="application/vnd.ms-project"  
".mpv"="video/mpg"  
".mpv2"="video/mpeg"  
".mpw"="application/vnd.ms-project"  
".mpx"="application/vnd.ms-project"  
".mtx"="text/xml"  
".mxp"="application/x-mmxp"  
".net"="image/pnetvue"  
".nrf"="application/x-nrf"  
".nws"="message/rfc822"  
".odc"="text/x-ms-odc"  
".out"="application/x-out"  
".p10"="application/pkcs10"  
".p12"="application/x-pkcs12"  
".p7b"="application/x-pkcs7-certificates"  
".p7c"="application/pkcs7-mime"  
".p7m"="application/pkcs7-mime"  
".p7r"="application/x-pkcs7-certreqresp"  
".p7s"="application/pkcs7-signature"  
".pc5"="application/x-pc5"  
".pci"="application/x-pci"  
".pcl"="application/x-pcl"  
".pcx"="application/x-pcx"  
".pdf"="application/pdf"  
".pdf"="application/pdf"  
".pdx"="application/vnd.adobe.pdx"  
".pfx"="application/x-pkcs12"  
".pgl"="application/x-pgl"  
".pic"="application/x-pic"  
".pko"="application/vnd.ms-pki.pko"  
".pl"="application/x-perl"  
".plg"="text/html"  
".pls"="audio/scpls"  
".plt"="application/x-plt"  
".png"="image/png"  
".png"="application/x-png"  
".pot"="application/vnd.ms-powerpoint"  
".ppa"="application/vnd.ms-powerpoint"  
".ppm"="application/x-ppm"  
".pps"="application/vnd.ms-powerpoint"  
".ppt"="application/vnd.ms-powerpoint"  
".ppt"="application/x-ppt"  
".pr"="application/x-pr"  
".prf"="application/pics-rules"  
".prn"="application/x-prn"  
".prt"="application/x-prt"  
".ps"="application/x-ps"  
".ps"="application/postscript"  
".ptn"="application/x-ptn"  
".pwz"="application/vnd.ms-powerpoint"  
".r3t"="text/vnd.rn-realtext3d"  
".ra"="audio/vnd.rn-realaudio"  
".ram"="audio/x-pn-realaudio"  
".ras"="application/x-ras"  
".rat"="application/rat-file"  
".rdf"="text/xml"  
".rec"="application/vnd.rn-recording"  
".red"="application/x-red"  
".rgb"="application/x-rgb"  
".rjs"="application/vnd.rn-realsystem-rjs"  
".rjt"="application/vnd.rn-realsystem-rjt"  
".rlc"="application/x-rlc"  
".rle"="application/x-rle"  
".rm"="application/vnd.rn-realmedia"  
".rmf"="application/vnd.adobe.rmf"  
".rmi"="audio/mid"  
".rmj"="application/vnd.rn-realsystem-rmj"  
".rmm"="audio/x-pn-realaudio"  
".rmp"="application/vnd.rn-rn_music_package"  
".rms"="application/vnd.rn-realmedia-secure"  
".rmvb"="application/vnd.rn-realmedia-vbr"  
".rmx"="application/vnd.rn-realsystem-rmx"  
".rnx"="application/vnd.rn-realplayer"  
".rp"="image/vnd.rn-realpix"  
".rpm"="audio/x-pn-realaudio-plugin"  
".rsml"="application/vnd.rn-rsml"  
".rt"="text/vnd.rn-realtext"  
".rtf"="application/msword"  
".rtf"="application/x-rtf"  
".rv"="video/vnd.rn-realvideo"  
".sam"="application/x-sam"  
".sat"="application/x-sat"  
".sdp"="application/sdp"  
".sdw"="application/x-sdw"  
".sit"="application/x-stuffit"  
".slb"="application/x-slb"  
".sld"="application/x-sld"  
".slk"="drawing/x-slk"  
".smi"="application/smil"  
".smil"="application/smil"  
".smk"="application/x-smk"  
".snd"="audio/basic"  
".sol"="text/plain"  
".sor"="text/plain"  
".spc"="application/x-pkcs7-certificates"  
".spl"="application/futuresplash"  
".spp"="text/xml"  
".ssm"="application/streamingmedia"  
".sst"="application/vnd.ms-pki.certstore"  
".stl"="application/vnd.ms-pki.stl"  
".stm"="text/html"  
".sty"="application/x-sty"  
".svg"="text/xml"  
".swf"="application/x-shockwave-flash"  
".tdf"="application/x-tdf"  
".tg4"="application/x-tg4"  
".tga"="application/x-tga"  
".tif"="image/tiff"  
".tif"="application/x-tif"  
".tiff"="image/tiff"  
".tld"="text/xml"  
".top"="drawing/x-top"  
".torrent"="application/x-bittorrent"  
".tsd"="text/xml"  
".txt"="text/plain"  
".uin"="application/x-icq"  
".uls"="text/iuls"  
".vcf"="text/x-vcard"  
".vda"="application/x-vda"  
".vdx"="application/vnd.visio"  
".vml"="text/xml"  
".vpg"="application/x-vpeg005"  
".vsd"="application/vnd.visio"  
".vsd"="application/x-vsd"  
".vss"="application/vnd.visio"  
".vst"="application/vnd.visio"  
".vst"="application/x-vst"  
".vsw"="application/vnd.visio"  
".vsx"="application/vnd.visio"  
".vtx"="application/vnd.visio"  
".vxml"="text/xml"  
".wav"="audio/wav"  
".wax"="audio/x-ms-wax"  
".wb1"="application/x-wb1"  
".wb2"="application/x-wb2"  
".wb3"="application/x-wb3"  
".wbmp"="image/vnd.wap.wbmp"  
".wiz"="application/msword"  
".wk3"="application/x-wk3"  
".wk4"="application/x-wk4"  
".wkq"="application/x-wkq"  
".wks"="application/x-wks"  
".wm"="video/x-ms-wm"  
".wma"="audio/x-ms-wma"  
".wmd"="application/x-ms-wmd"  
".wmf"="application/x-wmf"  
".wml"="text/vnd.wap.wml"  
".wmv"="video/x-ms-wmv"  
".wmx"="video/x-ms-wmx"  
".wmz"="application/x-ms-wmz"  
".wp6"="application/x-wp6"  
".wpd"="application/x-wpd"  
".wpg"="application/x-wpg"  
".wpl"="application/vnd.ms-wpl"  
".wq1"="application/x-wq1"  
".wr1"="application/x-wr1"  
".wri"="application/x-wri"  
".wrk"="application/x-wrk"  
".ws"="application/x-ws"  
".ws2"="application/x-ws"  
".wsc"="text/scriptlet"  
".wsdl"="text/xml"  
".wvx"="video/x-ms-wvx"  
".xdp"="application/vnd.adobe.xdp"  
".xdr"="text/xml"  
".xfd"="application/vnd.adobe.xfd"  
".xfdf"="application/vnd.adobe.xfdf"  
".xhtml"="text/html"  
".xls"="application/vnd.ms-excel"  
".xls"="application/x-xls"  
".xlw"="application/x-xlw"  
".xml"="text/xml"  
".xpl"="audio/scpls"  
".xq"="text/xml"  
".xql"="text/xml"  
".xquery"="text/xml"  
".xsd"="text/xml"  
".xsl"="text/xml"  
".xslt"="text/xml"  
".xwd"="application/x-xwd"  
".x_b"="application/x-x_b"  
".x_t"="application/x-x_t" 

 

更多 参考： http://blog.csdn.net/tt5267621/article/details/7173972