{

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( Stringparam )

{

Intent intent = newIntent("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 = newIntent("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 = newIntent("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( Stringparam )

{

Intent intent = newIntent("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;

}

}

注意：

一定要在Manifest.xml中声明权限：