我觉得用Unity 开发最爽的地方， 不是unity跨平台，而是用其他语言，要用很复杂的逻辑才能完成的功能，unity用一两句代码就能搞定

就比如说获取Android 系统的电量，不用发广播，不用申请权限，一句 SystemInfo.batteryLevel 轻松搞定。

关于设备信息，我们可以通过 SystemInfo类 来获得

batteryLevel

当前电量 (Read Only).

batteryStatus

返回电池的状态，是否在充电等 (Read Only).

copyTextureSupport

支持Graphics.CopyTexture的种类 (Read Only).

deviceModel

The model of the device (Read Only).

deviceName

The user defined name of the device (Read Only).

deviceType

返回本应用程序所正在运行的设备(Read Only).

deviceUniqueIdentifier

返回设备的唯一标识符 (Read Only).

graphicsDeviceID

图形设备的标识符

graphicsDeviceName

图形设备的名称

graphicsDeviceType

The graphics API type used by the graphics device (Read Only).

graphicsDeviceVendor

The vendor of the graphics device (Read Only).

graphicsDeviceVendorID

The identifier code of the graphics device vendor (Read Only).

graphicsDeviceVersion

The graphics API type and driver version used by the graphics device (Read Only).

graphicsMemorySize

Amount of video memory present (Read Only).

graphicsMultiThreaded

Is graphics device using multi-threaded rendering (Read Only)?

graphicsShaderLevel

Graphics device shader capability level (Read Only).

graphicsUVStartsAtTop

Returns true if the texture UV coordinate convention for this platform has Y starting at the top of the image.

maxCubemapSize

Maximum Cubemap texture size (Read Only).

maxTextureSize

Maximum texture size (Read Only).

npotSupport

What NPOT (non-power of two size) texture support does the GPU provide? (Read Only)

operatingSystem

Operating system name with version (Read Only).

operatingSystemFamily

Returns the operating system family the game is running on (Read Only).

processorCount

Number of processors present (Read Only).

processorFrequency

Processor frequency in MHz (Read Only).

processorType

Processor name (Read Only).

supportedRenderTargetCount

How many simultaneous render targets (MRTs) are supported? (Read Only)

supports2DArrayTextures

Are 2D Array textures supported? (Read Only)

supports3DRenderTextures

Are 3D (volume) RenderTextures supported? (Read Only)

supports3DTextures

Are 3D (volume) textures supported? (Read Only)

supportsAccelerometer

Is an accelerometer available on the device?

supportsAudio

Is there an Audio device available for playback?

supportsComputeShaders

Are compute shaders supported? (Read Only)

supportsCubemapArrayTextures

Are Cubemap Array textures supported? (Read Only)

supportsGyroscope

Is a gyroscope available on the device?

supportsImageEffects

Are image effects supported? (Read Only)

supportsInstancing

Is GPU draw call instancing supported? (Read Only)

supportsLocationService

Is the device capable of reporting its location?

supportsMotionVectors

Whether motion vectors are supported on this platform.

supportsRawShadowDepthSampling

Is sampling raw depth from shadowmaps supported? (Read Only)

supportsRenderToCubemap

Are cubemap render textures supported? (Read Only)

supportsShadows

Are built-in shadows supported? (Read Only)

supportsSparseTextures

Are sparse textures supported? (Read Only)

supportsVibration

是否支持震动

systemMemorySize

内存大小

unsupportedIdentifier

Value returned by SystemInfo string properties which are not supported on the current platform.

usesReversedZBuffer

如果当前平台使用反向深度缓冲区(取值范围从1附近的平面和0到远平面)，如果深度缓冲区是正常的(0在附近，1则远)，则此属性为true。(只读)