com.bumptech.glide.load

Enum DecodeFormat

java.lang.Object

java.lang.Enum<DecodeFormat>

com.bumptech.glide.load.DecodeFormat

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<DecodeFormat>

public enum DecodeFormat
extends java.lang.Enum<DecodeFormat>

Options for setting the value of Bitmap.getConfig() for Bitmaps returned by ResourceDecoders.

Note - In some cases it may not be possible to obey the requested setting, not all Downsamplers support setting formats and certain images may not be able to be loaded as certain configurations. Therefore this class represents a preference rather than a requirement.

Enum Constant Summary

Enum Constants

Enum Constant and Description
PREFER_ARGB_8888 Bitmaps returned by the ResourceDecoder.
PREFER_RGB_565 Bitmaps decoded from image formats that support and/or use alpha (some types of PNGs, GIFs etc) should return Bitmap.Config.ARGB_8888 for Bitmap.getConfig().

Field Summary

Fields

Modifier and Type	Field and Description
static DecodeFormat	DEFAULT The default value for DecodeFormat.

Method Summary

Modifier and Type	Method and Description
static DecodeFormat	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static DecodeFormat[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

PREFER_ARGB_8888

public static final DecodeFormat PREFER_ARGB_8888

Bitmaps returned by the ResourceDecoder. should return Bitmap.Config.ARGB_8888 for Bitmap.getConfig() when possible.

On Android O+, this format will will use ARGB_8888 only when it's not possible to use Bitmap.Config.HARDWARE. More information is available about hardware Bitmaps here: https://goo.gl/tn2A6k. If you need to disable hardware Bitmaps for a particular request, use BaseRequestOptions.disallowHardwareConfig().

GIF images decoded by BitmapFactory currently use an internal hidden format that is returned as null from Bitmap.getConfig(). Since we cannot force BitmapFactory to always return our desired config, this setting is a preference, not a promise.

PREFER_RGB_565

public static final DecodeFormat PREFER_RGB_565

Bitmaps decoded from image formats that support and/or use alpha (some types of PNGs, GIFs etc) should return Bitmap.Config.ARGB_8888 for Bitmap.getConfig(). Bitmaps decoded from formats that don't support or use alpha should return Bitmap.Config.RGB_565 for Bitmap.getConfig().

On Android O+, this format will will use ARGB_8888 only when it's not possible to use Bitmap.Config.HARDWARE.

Field Detail

DEFAULT

public static final DecodeFormat DEFAULT

The default value for DecodeFormat.

Method Detail

values

public static DecodeFormat[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DecodeFormat c : DecodeFormat.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DecodeFormat valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null