android intent打开各种文件的方法

1./**

  * 检测是否安装了某个软件

  * 

  * @param pkgName "com.bill99.kuaishua"

  * @param mContext

  * @return

  */

 public static boolean isPkgInstalled(String pkgName, Activity mContext) {

  PackageInfo packageInfo = null;

  try {

   packageInfo = mContext.getPackageManager().getPackageInfo(pkgName,

     0);

  } catch (NameNotFoundException e) {

   packageInfo = null;

   e.printStackTrace();

  }

  if (packageInfo == null) {

   return false;

  } else {

   return true;

  }

 }
 
2.应用安装.apk
  Intent intent = new Intent(Intent.ACTION_VIEW);

  intent.setDataAndType(Uri.fromFile(new File(filepath)),

    "application/vnd.Android.package-archive");

  mContext.startActivity(intent);
 
3.参考网上的各种openfile方法

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); 

//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; 

} 

MIME_MapTable是所有文件的后缀名所对应的MIME类型的一个String数组：

Java代码 <span style="white-space: pre;"> </span>private final String[][] MIME_MapTable={

//{后缀名，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"}, 

{".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},

{".xls", "application/vnd.ms-excel"}, 

{".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"}, 

{".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"}, 

{".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},

{".prop", "text/plain"}, 

{".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/plain"}, 

{".z", "application/x-compress"}, 

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

{"", "*/*"} 

}; 

这个MIME类型可能不够完整，你有要补充的吗？

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1. Intent open a picture file public:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

Uri uri = Uri.fromFile(new

File("/mnt/sdcard/images/001041580.jpg"));

intent.setDataAndType (uri, "image/*");

this.startActivity(intent);

 

2. Intent to open a PDF file:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

Uri uri = Uri.fromFile(new

File("file:///android_asset/helphelp.pdf"));

intent.setDataAndType (uri, "application/pdf");

this.startActivity(intent);

 

3. Intent to open a text file:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

if (paramBoolean)

{

Uri uri1 = Uri.parse (param);

intent.setDataAndType (URI1, "text/plain");

}

else

{

Uri uri = Uri.fromFile(new File("/mnt/sdcard/hello.txt"));

intent.setDataAndType (URI2, "text/plain");

}

this.startActivity(intent);

 

4. Intent to open the audio file:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

intent.putExtra ("oneshot",0);

intent.putExtra ("configchange",0);

Uri uri = Uri.fromFile(new File("/mnt/sdcard/ren.mp3"));

intent.setDataAndType (uri, "audio/*");

this.startActivity(intent);

 

5. Intent to open the video file:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

intent.putExtra ("oneshot",0);

intent.putExtra ("configchange",0);

Uri uri = Uri.fromFile(new File("/mnt/sdcard/ice.avi"));

intent.setDataAndType (uri, "video/*");

this.startActivity(intent);

 

6. Intent to open the CHM file:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

Uri uri = Uri.fromFile(new File("/mnt/sdcard/ice.chm"));

intent.setDataAndType (uri, "application / x-chm");

this.startActivity(intent);

 

7. Intent to open a Word document:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

Uri uri = Uri.fromFile(new File("/system/etc/help.doc"));

intent.setDataAndType(uri, "application/msword");

this.startActivity(intent);

 

8. Android Excel intent:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

Uri uri = Uri.fromFile(new File("/mnt/sdcard/Book1.xls"));

intent.setDataAndType (uri, "application/vnd.ms-excel");

this.startActivity(intent);

 

9. Intent to open the PPT file:

 

Java代码 



Intent intent = new Intent("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK);

Uri uri = Uri.fromFile(new

File("/mnt/sdcard/download/Android_PPT.ppt"));

intent.setDataAndType (uri, "application/vnd.ms-powerpoint");

this.startActivity(intent);

 

10. Display Html page::

 

Java代码 



Uri uri = Uri.parse ("http://www.google.com");

Intent intent = new Intent (Intent.ACTION_VIEW,
uri);

this.startActivity(intent);

 

11. Show map:

 

Java代码 



Uri uri = Uri.parse ("geo: 38.899533, -77.036476");

Intent intent = new Intent (Intent.Action_VIEW,
uri);

this.startActivity(intent);

 

12. Call the dialer:

 

Java代码 



Uri uri = Uri.parse ("tel: xxxxxx");

Intent intent = new Intent (Intent.ACTION_DIAL,
uri);

this.startActivity(intent);

 

13. Call :

 

Java代码 



Uri uri = Uri.parse ("tel: xxxxxx");

Intent it = new Intent (Intent.ACTION_CALL,
uri);

this.startActivity(intent);

/*permission:

<uses-permission id="android.permission.CALL_PHONE">

</uses-permission> */

 

14. Call to send text messages of the program :

 

Java代码 



Intent intent = new Intent (Intent.ACTION_VIEW);

intent.putExtra("sms_body","The
SMS text");

intent.setType("vnd.android-dir/mms-sms");

this.startActivity(intent);

 

15. Send SMS :

 

Java代码 



Uri uri = Uri.parse("smsto:0800000123");

Intent intent = new Intent(Intent.ACTION_SENDTO,
uri);

intent.putExtra("sms_body","The
SMS text");

this.startActivity(intent);

 

16. Send MMS :

 

Java代码 



Uri uri = Uri.parse("content://media/external/images/media/23");

Intent intent = new Intent(Intent.ACTION_SEND);

intent.putExtra("sms_body","some
text");

intent.putExtra(Intent.EXTRA_STREAM, uri);

intent.setType("image/png");

this.startActivity(intent);

 

17. Send an Email :

 

Java代码 



Uri uri = Uri.parse ("mailto: xxx@abc.com");

Intent intent = new Intent (Intent.ACTION_SENDTO,
uri);

this.startActivity(intent);

 

18. Send an Email with body :

 

Java代码 



Intent intent = new Intent(Intent.ACTION_SEND);

intent.putExtra(Intent.EXTRA_EMAIL,"me@abc.com");

intent.putExtra(Intent.EXTRA_TEXT,"The email body text");

intent.setType ("text/plain");

this.startActivity(

Intent.createChooser(intent, "Choose Email Client"));

 

19. Send an Email with body,to,cc :

 

Java代码 



Intent intent = new Intent(Intent.ACTION_SEND);

String [] tos ={"me@abc.com"};

String [] ccs ={"you@abc.com"};

intent.putExtra(Intent.EXTRA_EMAIL, tos);

intent.putExtra(Intent.EXTRA_CC, ccs);

intent.putExtra(Intent.EXTRA_TEXT, "The email body text");

intent.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

intent.setType("message/rfc822");

this.startActivity(

Intent.createChooser(intent, "Choose Email Client"));

 

20. Send an Email with attachments :

 

Java代码 



Intent intent = new Intent(Intent.ACTION_SEND);

intent.putExtra(Intent.EXTRA_SUBJECT,"The email subject text");

intent.putExtra(Intent.EXTRA_STREAM,"file :///sdcard/mysong.mp3");

sendIntent.setType("audio/mp3");

this.startActivity(

Intent.createChooser(intent,"Choose Email Client"));

 

21. Uninstall the program :

 

Java代码 



Uri uri = Uri.fromParts ("package", strPackageName,null);

Intent intent = new Intent (Intent.ACTION_DELETE,
uri);

this.startActivity(

Intent.createChooser(intent,"Choose Email Client"));

 

22. Install the apk :

 

Java代码 



Uri installUri = Uri.fromParts("package","xxx", null);

returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED,
installUri);

this.startActivity(returnIt);

 

23. Search applications :

 

Java代码 



Uri uri = Uri.parse("market://search?Q=pname:pkg_name");

Intent intent = new Intent(Intent.ACTION_VIEW,
uri);

this.startActivity(intent);

//Where pkg_name is the full package path for an application

 

24. Google Search Launch Web Browser :

 

Java代码 



Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);

String term = "Android";

intent.putExtra(SearchManager.QUERY, term);

activity.startActivity(intent);

 

25. Send text using Intent (to messaging apps) :

 

Java代码 



Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);

String msgBody = "This is message";

Intent intent = new Intent(android.content.Intent.ACTION_SEND);

intent.setType("text/plain");

intent.putExtra(android.content.Intent.EXTRA_SUBJECT,

"message subject");

intent.putExtra(android.content.Intent.EXTRA_TEXT, msgBody);

activity.startActivity(Intent.createChooser(intent, getResources().

getString(R.string.share_by_using)));

 

26. Create Shortcut on "Home Screen" :

 

Java代码 



Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);

Intent toPrint = new Intent(this,
anCreateshutcut.class);

Intent addShortcut = new Intent

("com.android.launcher.action.INSTALL_SHORTCUT");

addShortcut.putExtra(Intent.EXTRA_SHORTCUT_NAME, "Shutcutname");

addShortcut.putExtra(Intent.EXTRA_SHORTCUT_INTENT, toPrint);

addShortcut.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,

Intent.ShortcutIconResource.fromContext(this,
R.drawable.icon));

Manifest file:

<activity android:name=".MainActivity"
android:label="@string/app_name"
android:launchMode="singleTask"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<!--添加文件过滤器  还可以添加多种-->
<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.DEFAULT"/>
<data android:mimeType="application/msword"/>
<data android:mimeType="application/pdf"/>
<data android:mimeType="application/vnd.ms-excel"/>
<data android:mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document"/>
</intent-filter>
</activity>