ContentUri's format for id as string

Question

Content uri generally is in this format

content://provider/product/1

Can a contenturi be made to accept such uri

content://provider/product/p1

can id be string? I am trying to use ContentUris.withAppendedId(contentUri,id). this id seems to be type long.

Answer 1

The problem is most likely in the way you've defined your UriMatcher.

You are probably using a pattern matcher for that uri and table which ends with a "#", so it's looking for a number.

Just add another matcher pattern exactly like what you already have but change the "#" to a "*" so it will also match on a string.

Here's an example I used where my table had both and _id column and a device_id column. The device_id column had a NOT NULL and UNIQUE constraint and held UUIDs. Either of the the two columns could be used as row identifiers.

sUriMatcher.addURI(AUTHORITY, DevicesTable.TABLE_NAME + "/#", DEVICE); sUriMatcher.addURI(AUTHORITY, DevicesTable.TABLE_NAME + "/*", DEVICE);

With this in place you can call either Uri.withAppendedPath(uri, _id); or URi.withAppendedPath(uri, uuid); and the matcher would find the right table.

Just be sure to adjust your ContentProvider to query the right fields for either case.