added in version 27.1.0
belongs to Maven artifact com.android.support:support-content:28.0.0-alpha1

Summary: Nested Classes | Methods | [Expand All]

ContentPager.QueryRunner

public static interface ContentPager.QueryRunner

android.support.content.ContentPager.QueryRunner

Known Indirect Subclasses

Implementations of this interface provide the mechanism for execution of queries off the UI thread.

Summary

Nested classes
`interface`	`ContentPager.QueryRunner.Callback` Callback that receives a cursor once a query as been executed on the Runner.

Public methods
`abstract void`	`cancel(Query query)` Attempt to cancel a (presumably) running query.
`abstract boolean`	`isRunning(Query query)`
`abstract void`	`query(Query query, ContentPager.QueryRunner.Callback callback)` Execute a query.

void cancel (Query query)

Attempt to cancel a (presumably) running query.

Parameters
`query`	`Query`: The query in question.

boolean isRunning (Query query)

Parameters
`query`	`Query`: The query in question.

Returns
`boolean`	true if the query is already running.

void query (Query query, 
                ContentPager.QueryRunner.Callback callback)

Execute a query.

Parameters
`query`	`Query`: The query that will be run. This value should be handed back to the callback when ready to run in the background.
`callback`	`ContentPager.QueryRunner.Callback`: The callback that should be called to both execute the query (in the background) and to receive the results (in the foreground).