android用于打开各种文件的intent

转自：http://www.cnblogs.com/leizhenzi/archive/2011/5/25.html

//自定义android Intent类，

//可用于获取打开以下文件的intent

//PDF,PPT,WORD,EXCEL,CHM,HTML,TEXT,AUDIO,VIDEO

示例:

//这个不行，可能是因为PDF.apk程序没有权限访问其它APK里的asset资源文件,又或者是路径写错?

//Intent it =
getPdfFileIntent("file:///android_asset/helphelp.pdf");

//下面这些都OK

//Intent it =
getHtmlFileIntent("/mnt/sdcard/tutorial.html");//SD卡主目录

//Intent it =
getHtmlFileIntent("/sdcard/tutorial.html");//SD卡主目录,这样也可以

Intent it =
getHtmlFileIntent("/system/etc/tutorial.html");//系统内部的etc目录

//Intent it =
getPdfFileIntent("/system/etc/helphelp.pdf");

//Intent it =
getWordFileIntent("/system/etc/help.doc");

//Intent it =
getExcelFileIntent("/mnt/sdcard/Book1.xls")

//Intent it =
getPptFileIntent("/mnt/sdcard/download/Android_PPT.ppt");//SD卡的download目录下

//Intent it =
getVideoFileIntent("/mnt/sdcard/ice.avi");

//Intent it =
getAudioFileIntent("/mnt/sdcard/ren.mp3");

//Intent it =
getImageFileIntent("/mnt/sdcard/images/001041580.jpg");

//Intent it =
getTextFileIntent("/mnt/sdcard/hello.txt",false);

startActivity( it );

public class MyIntent

{

//android获取一个用于打开HTML文件的intent

public static Intent
getHtmlFileIntent( String param )

{

Uri uri =
Uri.parse(param
).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(param
).build();

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

intent.setDataAndType(uri, "text/html");

return
intent;

}

//android获取一个用于打开图片文件的intent

public static Intent
getImageFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开PDF文件的intent

public static Intent
getPdfFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开文本文件的intent

public static Intent getTextFileIntent( String
param, boolean paramBoolean)

{

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 uri2 = Uri.fromFile(new File(param
));

intent.setDataAndType(uri2,
"text/plain");

}

return intent;

}

//android获取一个用于打开音频文件的intent

public static Intent
getAudioFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开视频文件的intent

public static Intent
getVideoFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开CHM文件的intent

public static Intent
getChmFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开Word文件的intent

public static Intent
getWordFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开Excel文件的intent

public static Intent
getExcelFileIntent( String param )

{

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(param ));

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

return
intent;

}

//android获取一个用于打开PPT文件的intent

public static Intent
getPptFileIntent( String param )

{

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(param ));

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

return
intent;

}

}