Struct android_manifest::UsesLibrary [−][src]
Expand description
Specifies a shared library that the application must be linked against.
This element tells the system to include the library’s code in the class loader for
the package. All of the android packages (such as android.app
,
android.content
, android.view
, and android.widget
) are in the default
library that all applications are automatically linked against. However,
some packages (such as maps) are in separate libraries that are not
automatically linked. Consult the documentation for the packages you’re
using to determine which library contains the package code.
Node
Google Play uses the Google Play filters
.
This element also affects the installation of the application on a particular device and the availability of the application on Google Play:
Installation
If this element is present and its android:required attribute is set to true, the
PackageManager
framework won’t let the user install the application unless the
library is present on the user’s device.
The android:required
attribute is described in detail in the following
section.
XML Syntax
<uses-library
android:name="string"
android:required=["true" | "false"] />
Contained in
introduced in
API Level 1
Fields
name: Option<String>
The name of the library. The name is provided by the documentation for the package
you are using. An example of this is "android.test.runner"
, a package that
contains Android test classes.
required: Option<bool>
Boolean value that indicates whether the application requires the library specified by android:name:
"true":
The application does not function without this library. The system will not allow the application on a device that does not have the library."false":
The application can use the library if present, but is designed to function without it if necessary. The system will allow the application to be installed, even if the library is not present. If you use"false"
, you are responsible for checking at runtime that the library is available.
To check for a library, you can use reflection to determine if a particular class is available.
The default is "true"
.
Introduced in: API Level 7.
Trait Implementations
Returns the “default value” for a type. Read more
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
[src]
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
__D: Deserializer<'de>,
[src]Deserialize this value from the given Serde deserializer. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
fn serialize_attributes(
&self,
source_attributes: Vec<OwnedAttribute>,
source_namespace: Namespace
) -> Result<(Vec<OwnedAttribute>, Namespace), String>
[src]Auto Trait Implementations
impl RefUnwindSafe for UsesLibrary
impl Send for UsesLibrary
impl Sync for UsesLibrary
impl Unpin for UsesLibrary
impl UnwindSafe for UsesLibrary
Blanket Implementations
Mutably borrows from an owned value. Read more