Legacy Documentation: Version 2017.2 (Go to current version)
iOS Game Controller support
Optimizing Performance in iOS.
Other Versions

Advanced Unity Mobile Scripting

Device Properties

There are a number of device-specific properties that you can access. See the script reference pages for SystemInfo.deviceUniqueIdentifier, SystemInfo.deviceName, SystemInfo.deviceModel and SystemInfo.operatingSystem.

Anti-Piracy Check

Pirates will often hack an application (by removing AppStore DRM protection) and then redistribute it for free. Unity comes with an anti-piracy check which allows you to determine if your application was altered after it was submitted to the AppStore.

You can check if your application is genuine (not-hacked) with the Application.genuine property. If this property returns false then you might notify user that they are using a hacked application or maybe disable access to some functions of your application.

Note: Application.genuineCheckAvailable should be used along with Application.genuine to verify that application integrity can actually be confirmed. Accessing the Application.genuine property is a fairly expensive operation and so you shouldn’t do it during frame updates or other time-critical code.

Vibration Support

You can trigger a vibration by calling Handheld.Vibrate. However, devices lacking vibration hardware will just ignore this call.

Activity Indicator

Mobile OSs have built-in activity indicators, that you can use during slow operations. Please check Handheld.StartActivityIndicator docs for usage sample.

Screen Orientation

Unity iOS/Android/Tizen allows you to control current screen orientation. Detecting a change in orientation or forcing some specific orientation can be useful if you want to create game behaviors depending on how the user is holding the device.

You can retrieve device orientation by accessing the Screen.orientation property. Orientation can be one of the following:

Portrait The device is in portrait mode, with the device held upright and the home button at the bottom.
PortraitUpsideDown The device is in portrait mode but upside down, with the device held upright and the home button at the top.
LandscapeLeft The device is in landscape mode, with the device held upright and the home button on the right side.
LandscapeRight The device is in landscape mode, with the device held upright and the home button on the left side.

You can control screen orientation by setting Screen.orientation to one of those, or to ScreenOrientation.AutoRotation. When you want auto-rotation, you can disable some orientation on a case by case basis. See the script reference pages for Screen.autorotateToPortrait, Screen.autorotateToPortraitUpsideDown, Screen.autorotateToLandscapeLeft andScreen.autorotateToLandscapeRight

Advanced iOS scripting

Determining Device Generation

Different device generations support different functionality and have widely varying performance. You should query the device’s generation and decide which functionality should be disabled to compensate for slower devices. You can find the device generation from the iOS.DeviceGeneration property.

More information about different device generations, performance and supported functionality can be found in our iPhone Hardware Guide.

Did you find this page useful? Please give it a rating:

iOS Game Controller support
Optimizing Performance in iOS.
Copyright © 2023 Unity Technologies
优美缔软件(上海)有限公司 版权所有
"Unity"、Unity 徽标及其他 Unity 商标是 Unity Technologies 或其附属机构在美国及其他地区的商标或注册商标。其他名称或品牌是其各自所有者的商标。