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Resources

public class Resources
extends Object

java.lang.Object
   ↳ android.content.res.Resources
Known Direct Subclasses


Class for accessing an application's resources. This sits on top of the asset manager of the application (accessible through getAssets()) and provides a high-level API for getting typed data from the assets.

The Android resource system keeps track of all non-code assets associated with an application. You can use this class to access your application's resources. You can generally acquire the Resources instance associated with your application with getResources().

The Android SDK tools compile your application's resources into the application binary at build time. To use a resource, you must install it correctly in the source tree (inside your project's res/ directory) and build your application. As part of the build process, the SDK tools generate symbols for each resource, which you can use in your application code to access the resources.

Using application resources makes it easy to update various characteristics of your application without modifying code, and—by providing sets of alternative resources—enables you to optimize your application for a variety of device configurations (such as for different languages and screen sizes). This is an important aspect of developing Android applications that are compatible on different types of devices.

For more information about using resources, see the documentation about Application Resources.

Summary

Nested classes

class Resources.NotFoundException

This exception is thrown by the resource APIs when a requested resource can not be found. 

class Resources.Theme

This class holds the current attribute values for a particular theme. 

Public constructors

Resources(AssetManager assets, DisplayMetrics metrics, Configuration config)

This constructor was deprecated in API level 25. Resources should not be constructed by apps. See createConfigurationContext(Configuration).

Public methods

final void finishPreloading()

Called by zygote when it is done preloading resources, to change back to normal Resources operation.

final void flushLayoutCache()

Call this to remove all cached loaded layout resources from the Resources object.

XmlResourceParser getAnimation(int id)

Return an XmlResourceParser through which you can read an animation description for the given resource ID.

final AssetManager getAssets()

Retrieve underlying AssetManager storage for these resources.

boolean getBoolean(int id)

Return a boolean associated with a particular resource ID.

int getColor(int id)

This method was deprecated in API level 23. Use getColor(int, Theme) instead.

int getColor(int id, Resources.Theme theme)

Returns a themed color integer associated with a particular resource ID.

ColorStateList getColorStateList(int id, Resources.Theme theme)

Returns a themed color state list associated with a particular resource ID.

ColorStateList getColorStateList(int id)

This method was deprecated in API level 23. Use getColorStateList(int, Theme) instead.

Configuration getConfiguration()

Return the current configuration that is in effect for this resource object.

float getDimension(int id)

Retrieve a dimensional for a particular resource ID.

int getDimensionPixelOffset(int id)

Retrieve a dimensional for a particular resource ID for use as an offset in raw pixels.

int getDimensionPixelSize(int id)

Retrieve a dimensional for a particular resource ID for use as a size in raw pixels.

DisplayMetrics getDisplayMetrics()

Return the current display metrics that are in effect for this resource object.

Drawable getDrawable(int id, Resources.Theme theme)

Return a drawable object associated with a particular resource ID and styled for the specified theme.

Drawable getDrawable(int id)

This method was deprecated in API level 22. Use getDrawable(int, Theme) instead.

Drawable getDrawableForDensity(int id, int density)

This method was deprecated in API level 22. Use getDrawableForDensity(int, int, Theme) instead.

Drawable getDrawableForDensity(int id, int density, Resources.Theme theme)

Return a drawable object associated with a particular resource ID for the given screen density in DPI and styled for the specified theme.

float getFraction(int id, int base, int pbase)

Retrieve a fractional unit for a particular resource ID.

int getIdentifier(String name, String defType, String defPackage)

Return a resource identifier for the given resource name.

int[] getIntArray(int id)

Return the int array associated with a particular resource ID.

int getInteger(int id)

Return an integer associated with a particular resource ID.

XmlResourceParser getLayout(int id)

Return an XmlResourceParser through which you can read a view layout description for the given resource ID.

Movie getMovie(int id)

Return a movie object associated with the particular resource ID.

String getQuantityString(int id, int quantity)

Returns the string necessary for grammatically correct pluralization of the given resource ID for the given quantity.

String getQuantityString(int id, int quantity, Object... formatArgs)

Formats the string necessary for grammatically correct pluralization of the given resource ID for the given quantity, using the given arguments.

CharSequence getQuantityText(int id, int quantity)

Returns the character sequence necessary for grammatically correct pluralization of the given resource ID for the given quantity.

String getResourceEntryName(int resid)

Return the entry name for a given resource identifier.

String getResourceName(int resid)

Return the full name for a given resource identifier.

String getResourcePackageName(int resid)

Return the package name for a given resource identifier.

String getResourceTypeName(int resid)

Return the type name for a given resource identifier.

String getString(int id, Object... formatArgs)

Return the string value associated with a particular resource ID, substituting the format arguments as defined in Formatter and format(String, Object...). It will be stripped of any styled text information.

String getString(int id)

Return the string value associated with a particular resource ID. It will be stripped of any styled text information.

String[] getStringArray(int id)

Return the string array associated with a particular resource ID.

static Resources getSystem()

Return a global shared Resources object that provides access to only system resources (no application resources), and is not configured for the current screen (can not use dimension units, does not change based on orientation, etc).

CharSequence getText(int id, CharSequence def)

Return the string value associated with a particular resource ID.

CharSequence getText(int id)

Return the string value associated with a particular resource ID. The returned object will be a String if this is a plain string; it will be some other type of CharSequence if it is styled.

CharSequence[] getTextArray(int id)

Return the styled text array associated with a particular resource ID.

void getValue(String name, TypedValue outValue, boolean resolveRefs)

Return the raw data associated with a particular resource ID.

void getValue(int id, TypedValue outValue, boolean resolveRefs)

Return the raw data associated with a particular resource ID.

void getValueForDensity(int id, int density, TypedValue outValue, boolean resolveRefs)

Get the raw value associated with a resource with associated density.

XmlResourceParser getXml(int id)

Return an XmlResourceParser through which you can read a generic XML resource for the given resource ID.

final Resources.Theme newTheme()

Generate a new Theme object for this set of Resources.

TypedArray obtainAttributes(AttributeSet set, int[] attrs)

Retrieve a set of basic attribute values from an AttributeSet, not performing styling of them using a theme and/or style resources.

TypedArray obtainTypedArray(int id)

Return an array of heterogeneous values.

InputStream openRawResource(int id, TypedValue value)

Open a data stream for reading a raw resource.

InputStream openRawResource(int id)

Open a data stream for reading a raw resource.

AssetFileDescriptor openRawResourceFd(int id)

Open a file descriptor for reading a raw resource.

void parseBundleExtra(String tagName, AttributeSet attrs, Bundle outBundle)

Parse a name/value pair out of an XML tag holding that data.

void parseBundleExtras(XmlResourceParser parser, Bundle outBundle)

Parse a series of <extra> tags from an XML file.

void updateConfiguration(Configuration config, DisplayMetrics metrics)

This method was deprecated in API level 25. See createConfigurationContext(Configuration).

Inherited methods

From class java.lang.Object

Public constructors

Resources

Added in API level 1
Resources (AssetManager assets, 
                DisplayMetrics metrics, 
                Configuration config)

This constructor was deprecated in API level 25.
Resources should not be constructed by apps. See createConfigurationContext(Configuration).

Create a new Resources object on top of an existing set of assets in an AssetManager.

Parameters
assets AssetManager: Previously created AssetManager.
metrics DisplayMetrics: Current display metrics to consider when selecting/computing resource values.
config Configuration: Desired device configuration to consider when selecting/computing resource values (optional).

Public methods

finishPreloading

Added in API level 1
void finishPreloading ()

Called by zygote when it is done preloading resources, to change back to normal Resources operation.

flushLayoutCache

Added in API level 1
void flushLayoutCache ()

Call this to remove all cached loaded layout resources from the Resources object. Only intended for use with performance testing tools.

getAnimation

Added in API level 1
XmlResourceParser getAnimation (int id)

Return an XmlResourceParser through which you can read an animation description for the given resource ID. This parser has limited functionality -- in particular, you can't change its input, and only the high-level events are available.

This function is really a simple wrapper for calling getXml(int) with an animation resource.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
XmlResourceParser A new parser object through which you can read the XML data.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getAssets

Added in API level 1
AssetManager getAssets ()

Retrieve underlying AssetManager storage for these resources.

Returns
AssetManager

getBoolean

Added in API level 3
boolean getBoolean (int id)

Return a boolean associated with a particular resource ID. This can be used with any integral resource value, and will return true if it is non-zero.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
boolean Returns the boolean value contained in the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getColor

Added in API level 1
int getColor (int id)

This method was deprecated in API level 23.
Use getColor(int, Theme) instead.

Returns a color integer associated with a particular resource ID. If the resource holds a complex ColorStateList, then the default color from the set is returned.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
int A single color value in the form 0xAARRGGBB.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getColor

Added in API level 23
int getColor (int id, 
                Resources.Theme theme)

Returns a themed color integer associated with a particular resource ID. If the resource holds a complex ColorStateList, then the default color from the set is returned.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
theme Resources.Theme: The theme used to style the color attributes, may be null.
Returns
int A single color value in the form 0xAARRGGBB.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getColorStateList

Added in API level 23
ColorStateList getColorStateList (int id, 
                Resources.Theme theme)

Returns a themed color state list associated with a particular resource ID. The resource may contain either a single raw color value or a complex ColorStateList holding multiple possible colors.

Parameters
id int: The desired resource identifier of a ColorStateList, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
theme Resources.Theme: The theme used to style the color attributes, may be null.
Returns
ColorStateList A themed ColorStateList object containing either a single solid color or multiple colors that can be selected based on a state.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getColorStateList

Added in API level 1
ColorStateList getColorStateList (int id)

This method was deprecated in API level 23.
Use getColorStateList(int, Theme) instead.

Returns a color state list associated with a particular resource ID. The resource may contain either a single raw color value or a complex ColorStateList holding multiple possible colors.

Parameters
id int: The desired resource identifier of a ColorStateList, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
ColorStateList A ColorStateList object containing either a single solid color or multiple colors that can be selected based on a state.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getConfiguration

Added in API level 1
Configuration getConfiguration ()

Return the current configuration that is in effect for this resource object. The returned object should be treated as read-only.

Returns
Configuration The resource's current configuration.

getDimension

Added in API level 1
float getDimension (int id)

Retrieve a dimensional for a particular resource ID. Unit conversions are based on the current DisplayMetrics associated with the resources.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
float Resource dimension value multiplied by the appropriate metric.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getDimensionPixelOffset

Added in API level 1
int getDimensionPixelOffset (int id)

Retrieve a dimensional for a particular resource ID for use as an offset in raw pixels. This is the same as getDimension(int), except the returned value is converted to integer pixels for you. An offset conversion involves simply truncating the base value to an integer.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
int Resource dimension value multiplied by the appropriate metric and truncated to integer pixels.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getDimensionPixelSize

Added in API level 1
int getDimensionPixelSize (int id)

Retrieve a dimensional for a particular resource ID for use as a size in raw pixels. This is the same as getDimension(int), except the returned value is converted to integer pixels for use as a size. A size conversion involves rounding the base value, and ensuring that a non-zero base value is at least one pixel in size.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
int Resource dimension value multiplied by the appropriate metric and truncated to integer pixels.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getDisplayMetrics

Added in API level 1
DisplayMetrics getDisplayMetrics ()

Return the current display metrics that are in effect for this resource object. The returned object should be treated as read-only.

Returns
DisplayMetrics The resource's current display metrics.

getDrawable

Added in API level 21
Drawable getDrawable (int id, 
                Resources.Theme theme)

Return a drawable object associated with a particular resource ID and styled for the specified theme. Various types of objects will be returned depending on the underlying resource -- for example, a solid color, PNG image, scalable image, etc.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
theme Resources.Theme: The theme used to style the drawable attributes, may be null.
Returns
Drawable Drawable An object that can be used to draw this resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getDrawable

Added in API level 1
Drawable getDrawable (int id)

This method was deprecated in API level 22.
Use getDrawable(int, Theme) instead.

Return a drawable object associated with a particular resource ID. Various types of objects will be returned depending on the underlying resource -- for example, a solid color, PNG image, scalable image, etc. The Drawable API hides these implementation details.

Note: Prior to JELLY_BEAN, this function would not correctly retrieve the final configuration density when the resource ID passed here is an alias to another Drawable resource. This means that if the density configuration of the alias resource is different than the actual resource, the density of the returned Drawable would be incorrect, resulting in bad scaling. To work around this, you can instead manually resolve the aliased reference by using getValue(int, TypedValue, boolean) and passing true for resolveRefs. The resulting resourceId value may be passed to this method.

Note: To obtain a themed drawable, use Context.getDrawable(int) or getDrawable(int, Theme) passing the desired theme.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
Drawable Drawable An object that can be used to draw this resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getDrawableForDensity

Added in API level 15
Drawable getDrawableForDensity (int id, 
                int density)

This method was deprecated in API level 22.
Use getDrawableForDensity(int, int, Theme) instead.

Return a drawable object associated with a particular resource ID for the given screen density in DPI. This will set the drawable's density to be the device's density multiplied by the ratio of actual drawable density to requested density. This allows the drawable to be scaled up to the correct size if needed. Various types of objects will be returned depending on the underlying resource -- for example, a solid color, PNG image, scalable image, etc. The Drawable API hides these implementation details.

Note: To obtain a themed drawable, use Context.getDrawable(int) or getDrawableForDensity(int, int, Theme) passing the desired theme.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
density int: the desired screen density indicated by the resource as found in DisplayMetrics.
Returns
Drawable Drawable An object that can be used to draw this resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getDrawableForDensity

Added in API level 21
Drawable getDrawableForDensity (int id, 
                int density, 
                Resources.Theme theme)

Return a drawable object associated with a particular resource ID for the given screen density in DPI and styled for the specified theme.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
density int: The desired screen density indicated by the resource as found in DisplayMetrics.
theme Resources.Theme: The theme used to style the drawable attributes, may be null.
Returns
Drawable Drawable An object that can be used to draw this resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getFraction

Added in API level 3
float getFraction (int id, 
                int base, 
                int pbase)

Retrieve a fractional unit for a particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
base int: The base value of this fraction. In other words, a standard fraction is multiplied by this value.
pbase int: The parent base value of this fraction. In other words, a parent fraction (nn%p) is multiplied by this value.
Returns
float Attribute fractional value multiplied by the appropriate base value.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getIdentifier

Added in API level 1
int getIdentifier (String name, 
                String defType, 
                String defPackage)

Return a resource identifier for the given resource name. A fully qualified resource name is of the form "package:type/entry". The first two components (package and type) are optional if defType and defPackage, respectively, are specified here.

Note: use of this function is discouraged. It is much more efficient to retrieve resources by identifier than by name.

Parameters
name String: The name of the desired resource.
defType String: Optional default resource type to find, if "type/" is not included in the name. Can be null to require an explicit type.
defPackage String: Optional default package to find, if "package:" is not included in the name. Can be null to require an explicit package.
Returns
int int The associated resource identifier. Returns 0 if no such resource was found. (0 is not a valid resource ID.)

getIntArray

Added in API level 1
int[] getIntArray (int id)

Return the int array associated with a particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
int[] The int array associated with the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getInteger

Added in API level 1
int getInteger (int id)

Return an integer associated with a particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
int Returns the integer value contained in the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getLayout

Added in API level 1
XmlResourceParser getLayout (int id)

Return an XmlResourceParser through which you can read a view layout description for the given resource ID. This parser has limited functionality -- in particular, you can't change its input, and only the high-level events are available.

This function is really a simple wrapper for calling getXml(int) with a layout resource.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
XmlResourceParser A new parser object through which you can read the XML data.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getMovie

Added in API level 1
Movie getMovie (int id)

Return a movie object associated with the particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
Movie
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getQuantityString

Added in API level 1
String getQuantityString (int id, 
                int quantity)

Returns the string necessary for grammatically correct pluralization of the given resource ID for the given quantity. Note that the string is selected based solely on grammatical necessity, and that such rules differ between languages. Do not assume you know which string will be returned for a given quantity. See String Resources for more detail.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
quantity int: The number used to get the correct string for the current language's plural rules.
Returns
String String The string data associated with the resource, stripped of styled text information.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getQuantityString

Added in API level 1
String getQuantityString (int id, 
                int quantity, 
                Object... formatArgs)

Formats the string necessary for grammatically correct pluralization of the given resource ID for the given quantity, using the given arguments. Note that the string is selected based solely on grammatical necessity, and that such rules differ between languages. Do not assume you know which string will be returned for a given quantity. See String Resources for more detail.

Substitution of format arguments works as if using Formatter and format(String, Object...). The resulting string will be stripped of any styled text information.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
quantity int: The number used to get the correct string for the current language's plural rules.
formatArgs Object: The format arguments that will be used for substitution.
Returns
String String The string data associated with the resource, stripped of styled text information.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getQuantityText

Added in API level 1
CharSequence getQuantityText (int id, 
                int quantity)

Returns the character sequence necessary for grammatically correct pluralization of the given resource ID for the given quantity. Note that the character sequence is selected based solely on grammatical necessity, and that such rules differ between languages. Do not assume you know which string will be returned for a given quantity. See String Resources for more detail.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
quantity int: The number used to get the correct string for the current language's plural rules.
Returns
CharSequence CharSequence The string data associated with the resource, plus possibly styled text information.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getResourceEntryName

Added in API level 1
String getResourceEntryName (int resid)

Return the entry name for a given resource identifier.

Parameters
resid int: The resource identifier whose entry name is to be retrieved.
Returns
String A string holding the entry name of the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getResourceName

Added in API level 1
String getResourceName (int resid)

Return the full name for a given resource identifier. This name is a single string of the form "package:type/entry".

Parameters
resid int: The resource identifier whose name is to be retrieved.
Returns
String A string holding the name of the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getResourcePackageName

Added in API level 1
String getResourcePackageName (int resid)

Return the package name for a given resource identifier.

Parameters
resid int: The resource identifier whose package name is to be retrieved.
Returns
String A string holding the package name of the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getResourceTypeName

Added in API level 1
String getResourceTypeName (int resid)

Return the type name for a given resource identifier.

Parameters
resid int: The resource identifier whose type name is to be retrieved.
Returns
String A string holding the type name of the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getString

Added in API level 1
String getString (int id, 
                Object... formatArgs)

Return the string value associated with a particular resource ID, substituting the format arguments as defined in Formatter and format(String, Object...). It will be stripped of any styled text information.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
formatArgs Object: The format arguments that will be used for substitution.
Returns
String String The string data associated with the resource, stripped of styled text information.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getString

Added in API level 1
String getString (int id)

Return the string value associated with a particular resource ID. It will be stripped of any styled text information.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
String String The string data associated with the resource, stripped of styled text information.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getStringArray

Added in API level 1
String[] getStringArray (int id)

Return the string array associated with a particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
String[] The string array associated with the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getSystem

Added in API level 1
Resources getSystem ()

Return a global shared Resources object that provides access to only system resources (no application resources), and is not configured for the current screen (can not use dimension units, does not change based on orientation, etc).

Returns
Resources

getText

Added in API level 1
CharSequence getText (int id, 
                CharSequence def)

Return the string value associated with a particular resource ID. The returned object will be a String if this is a plain string; it will be some other type of CharSequence if it is styled.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
def CharSequence: The default CharSequence to return.
Returns
CharSequence CharSequence The string data associated with the resource, plus possibly styled text information, or def if id is 0 or not found.

getText

Added in API level 1
CharSequence getText (int id)

Return the string value associated with a particular resource ID. The returned object will be a String if this is a plain string; it will be some other type of CharSequence if it is styled.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
CharSequence CharSequence The string data associated with the resource, plus possibly styled text information.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getTextArray

Added in API level 1
CharSequence[] getTextArray (int id)

Return the styled text array associated with a particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
CharSequence[] The styled text array associated with the resource.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getValue

Added in API level 1
void getValue (String name, 
                TypedValue outValue, 
                boolean resolveRefs)

Return the raw data associated with a particular resource ID. See getIdentifier() for information on how names are mapped to resource IDs, and getString(int) for information on how string resources are retrieved.

Note: use of this function is discouraged. It is much more efficient to retrieve resources by identifier than by name.

Parameters
name String: The name of the desired resource. This is passed to getIdentifier() with a default type of "string".
outValue TypedValue: Object in which to place the resource data.
resolveRefs boolean: If true, a resource that is a reference to another resource will be followed so that you receive the actual final resource data. If false, the TypedValue will be filled in with the reference itself.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getValue

Added in API level 1
void getValue (int id, 
                TypedValue outValue, 
                boolean resolveRefs)

Return the raw data associated with a particular resource ID.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
outValue TypedValue: Object in which to place the resource data.
resolveRefs boolean: If true, a resource that is a reference to another resource will be followed so that you receive the actual final resource data. If false, the TypedValue will be filled in with the reference itself.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

getValueForDensity

Added in API level 15
void getValueForDensity (int id, 
                int density, 
                TypedValue outValue, 
                boolean resolveRefs)

Get the raw value associated with a resource with associated density.

Parameters
id int: resource identifier
density int: density in DPI
outValue TypedValue
resolveRefs boolean: If true, a resource that is a reference to another resource will be followed so that you receive the actual final resource data. If false, the TypedValue will be filled in with the reference itself.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

getXml

Added in API level 1
XmlResourceParser getXml (int id)

Return an XmlResourceParser through which you can read a generic XML resource for the given resource ID.

The XmlPullParser implementation returned here has some limited functionality. In particular, you can't change its input, and only high-level parsing events are available (since the document was pre-parsed for you at build time, which involved merging text and stripping comments).

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
XmlResourceParser A new parser object through which you can read the XML data.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

See also:

newTheme

Added in API level 1
Resources.Theme newTheme ()

Generate a new Theme object for this set of Resources. It initially starts out empty.

Returns
Resources.Theme Theme The newly created Theme container.

obtainAttributes

Added in API level 1
TypedArray obtainAttributes (AttributeSet set, 
                int[] attrs)

Retrieve a set of basic attribute values from an AttributeSet, not performing styling of them using a theme and/or style resources.

Parameters
set AttributeSet: The current attribute values to retrieve.
attrs int: The specific attributes to be retrieved.
Returns
TypedArray Returns a TypedArray holding an array of the attribute values. Be sure to call TypedArray.recycle() when done with it.

See also:

obtainTypedArray

Added in API level 1
TypedArray obtainTypedArray (int id)

Return an array of heterogeneous values.

Parameters
id int: The desired resource identifier, as generated by the aapt tool. This integer encodes the package, type, and resource entry. The value 0 is an invalid identifier.
Returns
TypedArray Returns a TypedArray holding an array of the array values. Be sure to call TypedArray.recycle() when done with it.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

openRawResource

Added in API level 3
InputStream openRawResource (int id, 
                TypedValue value)

Open a data stream for reading a raw resource. This can only be used with resources whose value is the name of an asset file -- that is, it can be used to open drawable, sound, and raw resources; it will fail on string and color resources.

Parameters
id int: The resource identifier to open, as generated by the appt tool.
value TypedValue: The TypedValue object to hold the resource information.
Returns
InputStream InputStream Access to the resource data.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

openRawResource

Added in API level 1
InputStream openRawResource (int id)

Open a data stream for reading a raw resource. This can only be used with resources whose value is the name of an asset files -- that is, it can be used to open drawable, sound, and raw resources; it will fail on string and color resources.

Parameters
id int: The resource identifier to open, as generated by the appt tool.
Returns
InputStream InputStream Access to the resource data.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

openRawResourceFd

Added in API level 1
AssetFileDescriptor openRawResourceFd (int id)

Open a file descriptor for reading a raw resource. This can only be used with resources whose value is the name of an asset files -- that is, it can be used to open drawable, sound, and raw resources; it will fail on string and color resources.

This function only works for resources that are stored in the package as uncompressed data, which typically includes things like mp3 files and png images.

Parameters
id int: The resource identifier to open, as generated by the appt tool.
Returns
AssetFileDescriptor AssetFileDescriptor A new file descriptor you can use to read the resource. This includes the file descriptor itself, as well as the offset and length of data where the resource appears in the file. A null is returned if the file exists but is compressed.
Throws
Resources.NotFoundException Throws NotFoundException if the given ID does not exist.

parseBundleExtra

Added in API level 3
void parseBundleExtra (String tagName, 
                AttributeSet attrs, 
                Bundle outBundle)

Parse a name/value pair out of an XML tag holding that data. The AttributeSet must be holding the data defined by Extra. The following value types are supported:

Parameters
tagName String: The name of the tag these attributes come from; this is only used for reporting error messages.
attrs AttributeSet: The attributes from which to retrieve the name/value pair.
outBundle Bundle: The Bundle in which to place the parsed value.
Throws
XmlPullParserException If the attributes are not valid.

parseBundleExtras

Added in API level 3
void parseBundleExtras (XmlResourceParser parser, 
                Bundle outBundle)

Parse a series of <extra> tags from an XML file. You call this when you are at the parent tag of the extra tags, and it will return once all of the child tags have been parsed. This will call parseBundleExtra(String, AttributeSet, Bundle) for each extra tag encountered.

Parameters
parser XmlResourceParser: The parser from which to retrieve the extras.
outBundle Bundle: A Bundle in which to place all parsed extras.
Throws
XmlPullParserException
IOException
XmlPullParserException

updateConfiguration

Added in API level 1
void updateConfiguration (Configuration config, 
                DisplayMetrics metrics)

This method was deprecated in API level 25.
See createConfigurationContext(Configuration).

Store the newly updated configuration.

Parameters
config Configuration
metrics DisplayMetrics
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