Added in API level 1

ContentValues

Kotlin |Java

public final class ContentValues
extends Object implements Parcelable

java.lang.Object
↳	android.content.ContentValues

This class is used to store a set of values that the ContentResolver can process.

Summary

Constants
`String`	`TAG`

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Fields
`public static final Creator<ContentValues>`	`CREATOR`

Public constructors
`ContentValues()` Creates an empty set of values using the default initial size
`ContentValues(int size)` Creates an empty set of values using the given initial size
`ContentValues(ContentValues from)` Creates a set of values copied from the given set

Public methods
`void`	`clear()` Removes all values.
`boolean`	`containsKey(String key)` Returns true if this object has the named value.
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`boolean`	`equals(Object object)` Indicates whether some other object is "equal to" this one.
`Object`	`get(String key)` Gets a value.
`Boolean`	`getAsBoolean(String key)` Gets a value and converts it to a Boolean.
`Byte`	`getAsByte(String key)` Gets a value and converts it to a Byte.
`byte[]`	`getAsByteArray(String key)` Gets a value that is a byte array.
`Double`	`getAsDouble(String key)` Gets a value and converts it to a Double.
`Float`	`getAsFloat(String key)` Gets a value and converts it to a Float.
`Integer`	`getAsInteger(String key)` Gets a value and converts it to an Integer.
`Long`	`getAsLong(String key)` Gets a value and converts it to a Long.
`Short`	`getAsShort(String key)` Gets a value and converts it to a Short.
`String`	`getAsString(String key)` Gets a value and converts it to a String.
`int`	`hashCode()` Returns a hash code value for the object.
`boolean`	`isEmpty()` Indicates whether this collection is empty.
`Set<String>`	`keySet()` Returns a set of all of the keys
`void`	`put(String key, Short value)` Adds a value to the set.
`void`	`put(String key, Long value)` Adds a value to the set.
`void`	`put(String key, Double value)` Adds a value to the set.
`void`	`put(String key, Integer value)` Adds a value to the set.
`void`	`put(String key, String value)` Adds a value to the set.
`void`	`put(String key, Boolean value)` Adds a value to the set.
`void`	`put(String key, Float value)` Adds a value to the set.
`void`	`put(String key, byte[] value)` Adds a value to the set.
`void`	`put(String key, Byte value)` Adds a value to the set.
`void`	`putAll(ContentValues other)` Adds all values from the passed in ContentValues.
`void`	`putNull(String key)` Adds a null value to the set.
`void`	`remove(String key)` Remove a single value.
`int`	`size()` Returns the number of values.
`String`	`toString()` Returns a string containing a concise, human-readable description of this object.
`Set<Entry<String, Object>>`	`valueSet()` Returns a set of all of the keys and values
`void`	`writeToParcel(Parcel parcel, int flags)` Flatten this object in to a Parcel.

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 timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

From interface


        
          android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Constants

TAG

Added in API level 1

public static final String TAG

Constant Value: "ContentValues"

Fields

CREATOR

Added in API level 1

public static final Creator<ContentValues> CREATOR

Public constructors

ContentValues

Added in API level 1

public ContentValues ()

Creates an empty set of values using the default initial size

ContentValues

Added in API level 1

public ContentValues (int size)

Creates an empty set of values using the given initial size

Parameters
`size`	`int`: the initial size of the set of values

ContentValues

Added in API level 1

public ContentValues (ContentValues from)

Creates a set of values copied from the given set

Parameters
`from`	`ContentValues`: the values to copy

Public methods

clear

Added in API level 1

public void clear ()

Removes all values.

containsKey

Added in API level 1

public boolean containsKey (String key)

Returns true if this object has the named value.

Parameters
`key`	`String`: the value to check for

Returns
`boolean`	`true` if the value is present, `false` otherwise

describeContents

Added in API level 1

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
`int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

equals

Added in API level 1

public boolean equals (Object object)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
`object`	`Object`: This value may be `null`.

Returns
`boolean`	`true` if this object is the same as the obj argument; `false` otherwise.

get

Added in API level 1

public Object get (String key)

Gets a value. Valid value types are String, Boolean, Number, and byte[] implementations.

Parameters
`key`	`String`: the value to get

Returns
`Object`	the data for the value, or `null` if the value is missing or if `null` was previously added with the given `key`

getAsBoolean

Added in API level 1

public Boolean getAsBoolean (String key)

Gets a value and converts it to a Boolean.

Parameters
`key`	`String`: the value to get

Returns
`Boolean`	the Boolean value, or `null` if the value is missing or cannot be converted

getAsByte

Added in API level 1

public Byte getAsByte (String key)

Gets a value and converts it to a Byte.

Parameters
`key`	`String`: the value to get

Returns
`Byte`	the Byte value, or `null` if the value is missing or cannot be converted

getAsByteArray

Added in API level 1

public byte[] getAsByteArray (String key)

Gets a value that is a byte array. Note that this method will not convert any other types to byte arrays.

Parameters
`key`	`String`: the value to get

Returns
`byte[]`	the `byte[]` value, or `null` is the value is missing or not a `byte[]`

getAsDouble

Added in API level 1

public Double getAsDouble (String key)

Gets a value and converts it to a Double.

Parameters
`key`	`String`: the value to get

Returns
`Double`	the Double value, or `null` if the value is missing or cannot be converted

getAsFloat

Added in API level 1

public Float getAsFloat (String key)

Gets a value and converts it to a Float.

Parameters
`key`	`String`: the value to get

Returns
`Float`	the Float value, or `null` if the value is missing or cannot be converted

getAsInteger

Added in API level 1

public Integer getAsInteger (String key)

Gets a value and converts it to an Integer.

Parameters
`key`	`String`: the value to get

Returns
`Integer`	the Integer value, or `null` if the value is missing or cannot be converted

getAsLong

Added in API level 1

public Long getAsLong (String key)

Gets a value and converts it to a Long.

Parameters
`key`	`String`: the value to get

Returns
`Long`	the Long value, or `null` if the value is missing or cannot be converted

getAsShort

Added in API level 1

public Short getAsShort (String key)

Gets a value and converts it to a Short.

Parameters
`key`	`String`: the value to get

Returns
`Short`	the Short value, or `null` if the value is missing or cannot be converted

getAsString

Added in API level 1

public String getAsString (String key)

Gets a value and converts it to a String.

Parameters
`key`	`String`: the value to get

Returns
`String`	the String for the value

hashCode

Added in API level 1

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
`int`	a hash code value for this object.

isEmpty

Added in API level 30

public boolean isEmpty ()

Indicates whether this collection is empty.

Returns
`boolean`	true iff size == 0

keySet

Added in API level 11

public Set<String> keySet ()

Returns a set of all of the keys

Returns
`Set<String>`	a set of all of the keys

put

Added in API level 1

public void put (String key, 
                Short value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Short`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                Long value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Long`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                Double value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Double`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                Integer value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Integer`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                String value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`String`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                Boolean value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Boolean`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                Float value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Float`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                byte[] value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`byte`: the data for the value to put

put

Added in API level 1

public void put (String key, 
                Byte value)

Adds a value to the set.

Parameters
`key`	`String`: the name of the value to put
`value`	`Byte`: the data for the value to put

putAll

Added in API level 1

public void putAll (ContentValues other)

Adds all values from the passed in ContentValues.

Parameters
`other`	`ContentValues`: the ContentValues from which to copy

putNull

Added in API level 1

public void putNull (String key)

Adds a null value to the set.

Parameters
`key`	`String`: the name of the value to make null

remove

Added in API level 1

public void remove (String key)

Remove a single value.

Parameters
`key`	`String`: the name of the value to remove

size

Added in API level 1

public int size ()

Returns the number of values.

Returns
`int`	the number of values

toString

Added in API level 1

public String toString ()

Returns a string containing a concise, human-readable description of this object.

Returns
`String`	a printable representation of this object.

valueSet

Added in API level 1

public Set<Entry<String, Object>> valueSet ()

Returns a set of all of the keys and values

Returns
`Set<Entry<String, Object>>`	a set of all of the keys and values

writeToParcel

Added in API level 1

public void writeToParcel (Parcel parcel, 
                int flags)

Flatten this object in to a Parcel.

Parameters
`parcel`	`Parcel`: The Parcel in which the object should be written. This value cannot be `null`.
`flags`	`int`: Additional flags about how the object should be written. May be 0 or `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES