Michael loves material design, open source, and thinks android O should be named “Oreo”. If _id is aliased, we would get repeated names, since DISTINCT would also consider the _id in determining if a record is distinct. Note that aliasing _id should only be done if the original query projection contains the idField.Imagine something like ‘SELECT DISTINCT firstName FROM person’. Voila! Now the resulting cursors contain an “_id” column, and CursorAdapters work as expected. Google will keep appropriate documentation of its processing activities as required by the GDPR. In ContentProvider.query, we simply replace the specified query projection with the result of the above method. Android Enterprise’s Data Protection Team can be contacted at (and/or via such other means as Google may provide from time to time). System.arraycopy(projection, 0, newProjection, 0, projection.length) Private String ensureProjection_id(String projection, String idField) ** Ensure queries have an "_id" field by aliasing the idField to “_id”.
To work around it, we needed to ensure that each content provider query returns a cursor containing an “_id” column. Unfortunately, at HCSS, our database wasn’t designed with “_id” in mind, so our primary keys are “id” or “ID”, somewhat inconsistently. In most cases, this means your primary key should be “_id”. Retrofitting an Android Database with “_id”Īndroid SQLite is pretty much vanilla SQLite, but with one caveat: if you want to use ContentProviders, CursorAdapters, and other handy framework widgets, you will need to have a column named “_id”. During the start up process, you’ll get a popup asking if you’d like to copy apps & data from an old phone. Michael Nguyen, an android developer at HCSS, wanted to share this piece with all the other techies out there. Insert your SIM card into your new phone and turn it on. This is true especially in our development department. And occasionally you’ll even hear what sounds like a completely foreign language being spoken. Sometimes when you walk the halls of HCSS, you’ll see employees riding hoverboards and hear the sounds of shooting NERF guns.
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