Chinaunix首页 | 论坛 | 博客
  • 博客访问: 434470
  • 博文数量: 78
  • 博客积分: 1563
  • 博客等级: 上尉
  • 技术积分: 910
  • 用 户 组: 普通用户
  • 注册时间: 2006-04-25 09:58
个人简介

爬虫

文章分类

全部博文(78)

文章存档

2020年(1)

2016年(1)

2015年(9)

2014年(1)

2013年(8)

2012年(6)

2011年(3)

2010年(4)

2008年(8)

2007年(13)

2006年(24)

我的朋友

分类: Android平台

2013-05-16 11:41:48

自定义文件关联指的是打开一个你自己创建的文件,例如后缀是(.abc)。
首先我先介绍下常见文件关联,例如.txt、.jpg。
在Android中,任何文件类型或者MIME类型的关联性打开,是通过广播Intent来实现的。例如,你如果想要注册自己为.txt类型的查看器或者图片查看器,必须为你的Activity加入intent-filter来获取到一个来源所发出的Intent Broadcasting(广播),从而达到关联的目的。

首先我们来看一下data属性里的值
android:host="string"
android:mimeType="string"
android:path="string"
android:pathPattern="string"
android:pathPrefix="string"
android:port="string"
android:scheme="string"/>
我们可以通过URL启动相应data属性描述的Activity。 
URL: 
scheme://host:port/path or pathPrefix or pathPattern
属性:
android:host
URL的主机部分
android:mimeType
MIME 媒体类型,例如image/jpeg或者text/xml。

一个合法的File Manager(文件管理器)在执行Open动作时,应该是发出一个intent.ACTION_VIEW。所以你的intent-filter应该是这样子的:
















在这里,你必须同时申明android:scheme, android:host, android:pathPattern, 方可令pathPattern正确生效。第一个文件关联指的是可以匹配file://mnt/sdcard/12345.txt这样的请求,启动Demo1Activity,第二个文件关联指的是可以匹配content://com.android.test/sdcard/123.txt 这样的请求,在文件管理器中点击这类的txt,可以启动Demo2Activity。如果你有需要,你可以加入android:mimeType来限定文件类型。例如你想打开jpg文件时启动你的activity,这是可以在里添加,具体的mimeType有哪些,你可以上网找,这里我就不一一列举了。

最后我们回到正题,怎么关联自定义文件,我想看到这里大家应该也有思路的,就是修改pathPattern=".*.abc",注意,由于这里打开的是文件,所以android:scheme="file"。这样就可以打开后缀是.adc文件,启动相应的activity。
=================================================
在manifest文件里->activity 添加

    

    

    

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:

  1. <intent-filter>  
  2. <action android:name="android.intent.action.VIEW" />  
  3. <category android:name="android.intent.category.DEFAULT" />  
  4. <category android:name="android.intent.category.BROWSABLE" />  
  5. <data android:scheme="file" />  
  6. <data android:mimeType="*/*" />  
  7. <data android:host="*" />  
  8. <data android:pathPattern=".*\\.txt" />  
  9. intent-filter>  
  10. <intent-filter>  
  11. <action android:name="android.intent.action.VIEW" />  
  12. <category android:name="android.intent.category.DEFAULT" />  
  13. <category android:name="android.intent.category.BROWSABLE" />  
  14. <data android:scheme="content" />  
  15. <data android:host="*" />  
  16. <data android:pathPattern=".*\\.txt" />  
  17. 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:
复制代码
 {".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"},
  {"", "*/*"}
复制代码

 

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

阅读(14299) | 评论(0) | 转发(0) |
0

上一篇:加密sqlite

下一篇:android 隐藏程序图标

给主人留下些什么吧!~~