拍照后数据的保存更新 Media Provider

Uri saveMediaEntry(String imagePath,String title,String description,long dateTaken,int orientation,Location loc) {
	ContentValues v = new ContentValues();
	v.put(Images.Media.TITLE, title);
	v.put(Images.Media.DISPLAY_NAME, displayName);
	v.put(Images.Media.DESCRIPTION, description);
	v.put(Images.Media.DATE_ADDED, dateTaken);
	v.put(Images.Media.DATE_TAKEN, dateTaken);
	v.put(Images.Media.DATE_MODIFIED, dateTaken) ;
	v.put(Images.Media.MIME_TYPE, "image/jpeg");
	v.put(Images.Media.ORIENTATION, orientation);
 
	File f = new File(imagePath) ;
	File parent = f.getParentFile() ;
	String path = parent.toString().toLowerCase() ;
	String name = parent.getName().toLowerCase() ;
	v.put(Images.ImageColumns.BUCKET_ID, path.hashCode());
	v.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, name);
	v.put(Images.Media.SIZE,f.length()) ;
	f = null ;
 
	if( targ_loc != null ) {
		v.put(Images.Media.LATITUDE, loc.getLatitude());
		v.put(Images.Media.LONGITUDE, loc.getLongitude());
	}
	v.put("_data",imagePath) ;
	ContentResolver c = getContentResolver() ;
	return c.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, v);
}