[英]In Android how to check if device has front flash (Camera2 API)
I have developed app that can toggle rear and front flashes. 我开发了可以切换前后闪光灯的应用程序。 But if a device hasn't got front flash the app crashes. 但是,如果设备没有前置闪存,则应用程序将崩溃。 Can I check device front flash availability? 我可以检查设备正面闪存的可用性吗? Like if front flash unavailable show toast and disable the button. 就像前闪光灯不可用时一样,举杯并禁用按钮。
Any help would be appreciated. 任何帮助,将不胜感激。
Something like this I guess: 我猜是这样的:
boolean flashAvailable = cameraCharacteristics.get(cameraCharacteristics.FLASH_INFO_AVAILABLE);
public static final Key FLASH_INFO_AVAILABLE 公共静态最终密钥FLASH_INFO_AVAILABLE
Will be false if no flash is available. 如果没有可用的闪光灯,则为false 。
If there is no flash unit, none of the flash controls do anything. 如果没有闪光灯,则任何闪光灯控制都不会执行任何操作。 This key is available on all devices. 该密钥在所有设备上均可用。
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