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Summary: Methods | Inherited Methods | [Expand All]

ContentResolverCompat

public final class ContentResolverCompat
extends Object

java.lang.Object
↳	android.support.v4.content.ContentResolverCompat

Helper for accessing features in ContentResolver introduced after API level 4 in a backwards compatible fashion.

Summary

Public methods
`static Cursor`	`query(ContentResolver resolver, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder, CancellationSignal cancellationSignal)` Query the given URI, returning a `Cursor` over the result set with optional support for cancellation.

Inherited methods

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public methods

query

Cursor query (ContentResolver resolver, 
                Uri uri, 
                String[] projection, 
                String selection, 
                String[] selectionArgs, 
                String sortOrder, 
                CancellationSignal cancellationSignal)

Query the given URI, returning a Cursor over the result set with optional support for cancellation.

For best performance, the caller should follow these guidelines:

Provide an explicit projection, to prevent reading data from storage that aren't going to be used.
Use question mark parameter markers such as 'phone=?' instead of explicit values in the selection parameter, so that queries that differ only by those values will be recognized as the same for caching purposes.

Parameters
`resolver`	`ContentResolver`
`uri`	`Uri`: The URI, using the content:// scheme, for the content to retrieve.
`projection`	`String`: A list of which columns to return. Passing null will return all columns, which is inefficient.
`selection`	`String`: A filter declaring which rows to return, formatted as an SQL WHERE clause (excluding the WHERE itself). Passing null will return all rows for the given URI.
`selectionArgs`	`String`: You may include ?s in selection, which will be replaced by the values from selectionArgs, in the order that they appear in the selection. The values will be bound as Strings.
`sortOrder`	`String`: How to order the rows, formatted as an SQL ORDER BY clause (excluding the ORDER BY itself). Passing null will use the default sort order, which may be unordered.
`cancellationSignal`	`CancellationSignal`: A signal to cancel the operation in progress, or null if none. If the operation is canceled, then `OperationCanceledException` will be thrown when the query is executed.

Returns
`Cursor`	A Cursor object, which is positioned before the first entry, or null

See also:

Cursor

Annotations

Interfaces

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ContentResolverCompat

Summary

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Public methods

query