Struct Rect

pub struct Rect { /* private fields */ }

Rect 保存矩形的四个整数坐标。矩形由其 4 条边（左、上、右、下）的坐标表示。这些字段可以直接访问。使用 width() 和 height() 检索矩形的宽度和高度。 注意：大多数方法不会检查坐标是否正确排序（即左 <= 右且上 <= 下）。 请注意，右坐标和下坐标是互斥的。这意味着在 Canvas 上绘制的未转换的 Rect 将绘制到其左坐标和上坐标所描述的列和行中，但不会绘制到其下坐标和右坐标中。

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 Rect

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

Formats the value using the given formatter.

impl Deref for Rect

type Target = GlobalRef

The resulting type after dereferencing.

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

Dereferences the value.

impl From<&GlobalRef> for Rect

fn from(obj: &GlobalRef) -> Self

Converts to this type from the input type.

impl Into<GlobalRef> for &Rect

fn into(self) -> GlobalRef

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

impl JObjNew for Rect

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 Rect

fn java_ref(&self) -> GlobalRef

获取java对象引用。

impl JType for Rect

const CLASS: &'static str = "android/graphics/Rect"

java类的名称。

const OBJECT_SIG: &'static str = "Landroid/graphics/Rect;"

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 Rect

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 Rect

fn to_string(&self) -> String

Converts the given value to a String.