Android Open Local File

Android opens a local file, which is actually very common. And now there's a mobile version of Office. It's even easier to see the whole family of office buckets.

The first thing to know is that the Android open local file is opened according to the type, that is, based on the MIME type of the file to determine

If you don't know what the type is, it is: */*

Type Match table:

private static final string[][] mime_maptable={//{suffix name, MIME type} {". 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 "," Applicatio        N/octet-stream "}, {". gif "," Image/gif "}, {". Gtar "," Application/x-gtar "}, {". Gz ", "Application/x-gzip"}, {". h", "Text/plain"}, {". htm", "text/html"}, {". HT            ML "," 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.certificat            E "}, {". Mpe "," Video/mpeg "}, {". mpeg "," Video/mpeg "}, {". mpg "," Video/mpeg "}, {". Mpg4", "Video/mp4"}, {". MPGA", "Audio/mpeg"}, {". Msg", "Application/vnd.ms-outl Ook "}, {". 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 "}, {". rm            vb "," Audio/x-pn-realaudio "}, {". rtf "," Application/rtf "}, {". Sh "," Text/plain "}, {". Tar", "Application/x-tar"}, {". tgz", "application/x-compressed"}, {". txt", "text/p Lain "}, {". wav "," Audio/x-wav "}, {". wma "," audio/x-ms-wma "}, {". wmv "," audio/x-m    S-wmv "}, {". wps "," Application/vnd.ms-works "},//{". xml "," Text/xml "}, {". xml ", "Text/plain"}, {". Z", "application/x-compress"}, {". zip", "Application/zip"}, { "",        "*/*"}    };

Gets the type of the file.

    Private String getmimetype (file file) {        String type= "*/*";        String fName = File.getname ();        Gets the delimiter "." Before the suffix name. The position in the fname.          int dotindex = Fname.lastindexof (".");        if (Dotindex < 0)            return type;        /* Get the suffix name of the file */        String fileType = fname.substring (Dotindex,fname.length ()). toLowerCase ();        if (FileType = = NULL | | ". Equals (FileType))            return type;        The corresponding MIME type is found in the matching table of mime and file types. for          (int i=0;i<mime_maptable.length;i++) {              if (filetype.equals (mime_maptable[i][0]))                type = Mime_ MAPTABLE[I][1];        }        return type;    }

Open File

    Intent Intent = new Intent ();    File File = new file (filedirectory);    Intent.addflags (intent.flag_activity_new_task);//Set Tag    intent.setaction (Intent.action_view);//action, view    Intent.setdataandtype (uri.fromfile (file), GetMimeType (file));//set Type    context.startactivity (intent);

　　

Android Open Local File