如何设置屏幕的亮度？

Question

如何设置屏幕的亮度？

Answer 1

可以通过setWindowBrightness方法设置屏幕的亮度。

可参考如下代码：

import window from '@ohos.window';   
import { BusinessError } from '@ohos.base';   
   
let brightness: number = 1;   
let windowClass: window.Window = window.findWindow("test");   
try {   
 windowClass.setWindowBrightness(brightness, (err: BusinessError) =\> {   
 const errCode: number = err.code;   
 if (errCode) {   
 console.error('Failed to set the brightness. Cause: ' + JSON.stringify(err));   
 return;   
 }   
 console.info('Succeeded in setting the brightness.');   
 });   
} catch (exception) {   
 console.error('Failed to set the brightness. Cause: ' + JSON.stringify(exception));   
}