Android APIs
public static final enum

Bitmap.Config

extends Enum<Bitmap.Config>
java.lang.Object
   ↳ java.lang.Enum<android.graphics.Bitmap.Config>
     ↳ android.graphics.Bitmap.Config

Class Overview

Possible bitmap configurations. A bitmap configuration describes how pixels are stored. This affects the quality (color depth) as well as the ability to display transparent/translucent colors.

Summary

Enum Values
Bitmap.Config  ALPHA_8  Each pixel is stored as a single translucency (alpha) channel. 
Bitmap.Config  ARGB_4444  This field was deprecated in API level 13. Because of the poor quality of this configuration, it is advised to use ARGB_8888 instead.  
Bitmap.Config  ARGB_8888  Each pixel is stored on 4 bytes. 
Bitmap.Config  RGB_565  Each pixel is stored on 2 bytes and only the RGB channels are encoded: red is stored with 5 bits of precision (32 possible values), green is stored with 6 bits of precision (64 possible values) and blue is stored with 5 bits of precision. 
Public Methods
static Bitmap.Config valueOf(String name)
final static Config[] values()
[Expand]
Inherited Methods
From class java.lang.Enum
From class java.lang.Object
From interface java.lang.Comparable

Enum Values

public static final Bitmap.Config ALPHA_8

Added in API level 1

Each pixel is stored as a single translucency (alpha) channel. This is very useful to efficiently store masks for instance. No color information is stored. With this configuration, each pixel requires 1 byte of memory.

public static final Bitmap.Config ARGB_4444

Added in API level 1

This field was deprecated in API level 13.
Because of the poor quality of this configuration, it is advised to use ARGB_8888 instead.

Each pixel is stored on 2 bytes. The three RGB color channels and the alpha channel (translucency) are stored with a 4 bits precision (16 possible values.) This configuration is mostly useful if the application needs to store translucency information but also needs to save memory. It is recommended to use ARGB_8888 instead of this configuration. Note: as of KITKAT, any bitmap created with this configuration will be created using ARGB_8888 instead.

public static final Bitmap.Config ARGB_8888

Added in API level 1

Each pixel is stored on 4 bytes. Each channel (RGB and alpha for translucency) is stored with 8 bits of precision (256 possible values.) This configuration is very flexible and offers the best quality. It should be used whenever possible.

public static final Bitmap.Config RGB_565

Added in API level 1

Each pixel is stored on 2 bytes and only the RGB channels are encoded: red is stored with 5 bits of precision (32 possible values), green is stored with 6 bits of precision (64 possible values) and blue is stored with 5 bits of precision. This configuration can produce slight visual artifacts depending on the configuration of the source. For instance, without dithering, the result might show a greenish tint. To get better results dithering should be applied. This configuration may be useful when using opaque bitmaps that do not require high color fidelity.

Public Methods

public static Bitmap.Config valueOf (String name)

Added in API level 1

Parameters
name
Returns
Bitmap.Config

public static final Config[] values ()

Added in API level 1

Returns
Config[]