Room On Main Thread

Room doesn t support database access on the main thread unless you ve called allowmainthreadqueries on the builder because it might lock the ui for a long period of time.

Room on main thread.

Room is an android library on top of sqlite which performs compile time checks on sql queries and frees you up from writing db helpers. Here an app will crash as the operation is performed on a main thread. Mary uses decorative threads to add color to her studio as well. When room queries return livedata the queries are automatically run asynchronously on a background thread.

In threads 175 mary ray described her favorite methods for storing fabrics notions and thread in her banner elk north carolina studio. You ll notice mary s inspiration board where she keeps images and objects she finds interesting. Room takes care of mundane tasks that you used to handle with an sqliteopenhelper. By default to avoid poor ui performance room doesn t allow you to issue queries on the main thread.

Photo by cheryl zibisky photography. Room uses the dao to issue queries to its database. Fixed a bug where room would fail to find an appropriate type converter for a field in a kotlin entity class. Doing database operations insert update delete read data from the table has to be done in background thread will it was always intended to be perform on background thread but now it s mandatory.

Room 2 1 adds support for kotlin coroutines. Asynchronous queries queries that return instances of livedata or flowable are exempt from this rule because they asynchronously run the query on a background.