Android：ContentProvider 随记2

ContentProvider：自定义ContentProvideronCreate,delete,update,query,insert,getType两个帮助类：path=gift/#; # 匹配所有数字path=gift/filter/*; * 匹配所有字符UriMatcher：addURI(AUTHORITY,path,code);         code=match(uri);String data=uri.getLastSegment();// 获取最后的一部分id=ContentUris.parseId(uri);Uri uri=ContentUris.withAppendedId(uri,id);Uri uri=Uri.withAppendedPath(uri,path);