Struct AudioManager

pub struct AudioManager { /* private fields */ }

AudioManager 提供对音量和铃声模式的控制。

Implementations

impl AudioManager

pub const ACTION_HEADSET_PLUG: &'static str = "android.intent.action.HEADSET_PLUG"

广播操作：有线耳机已插入或拔出。您无法通过清单中声明的​​组件接收此信息，只能通过使用 Context.registerReceiver() 明确注册来接收。 意图将具有以下额外值： state - 0 表示拔出，1 表示插入。 name - 耳机类型，人类可读的字符串 microphone - 如果耳机有麦克风则为 1，否则为 0

Methods from Deref<Target = GlobalRef>

pub fn as_obj(&self) -> &JObject<'static>

Get the object from the global ref

This borrows the ref and prevents it from being dropped as long as the JObject sticks around.

Methods from Deref<Target = JObject<'static>>

pub fn as_raw(&self) -> *mut _jobject

Returns the raw JNI pointer.

Trait Implementations

impl Debug for AudioManager

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Deref for AudioManager

type Target = GlobalRef

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl From<&GlobalRef> for AudioManager

fn from(obj: &GlobalRef) -> Self

Converts to this type from the input type.

impl Into<GlobalRef> for &AudioManager

fn into(self) -> GlobalRef

Converts this type into the (usually inferred) input type.

impl JObjNew for AudioManager

type Fields = ()

字段类型

fn _new(this: &GlobalRef, fields: Self::Fields) -> Self

从java对象创建本地对象。 this java对象引用。

fn null() -> Self

where Self: Sized, Self::Fields: Default,

创建空对象。

impl JObjRef for AudioManager

fn java_ref(&self) -> GlobalRef

获取java对象引用。

impl JType for AudioManager

const CLASS: &'static str = "android/media/AudioManager"

java类的名称。

const OBJECT_SIG: &'static str = "Landroid/media/AudioManager;"

对象的签名描述。

type Error = Error

错误类型。

const DIM: u8 = 0u8

数组维度，0表示不是数组

impl PartialEq for AudioManager

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToString for AudioManager

fn to_string(&self) -> String

Converts the given value to a String.