swan.setKeepScreenOn

解释：设置是否保持常亮状态。仅在当前智能小程序生效，离开智能小程序后设置失效。

Web 态说明：Web 态暂不支持保持屏幕常亮功能，调用该 API 会触发 fail 回调。

方法参数

Object object

object 参数说明

示例 

在开发者工具中打开

图片示例

代码示例

<view class="wrap">
    <view class="card-area">
        <view class="display-area">
            <view class="brightness-title">当前屏幕亮度</view>
            <view class="value">{{value/100}}</view>
        </view>
    </view>
    <view class="card-area">
        <view class="top-description border-bottom">设置屏幕亮度</view>
        <slider min="0" max="100" value="{{value}}" step="1" class="slider" bindchanging="brightnessChange"></slider>
    </view>
    <view class="card-area">
        <view class="item-scroll block">
            <text class="switch-text">设置保持屏幕常亮</text>
            <switch bindchange="keepScreenOn"></switch>
        </view>
     </view>
    <view class="tip-week">注：屏幕亮度及屏幕常亮设置仅在当前小程序生效，离开小程序后失效。</view>
</view>

Page({
    data: {
        value: 10
    },
    onLoad(e) {
        swan.getScreenBrightness({
            success: res => {
                let value = res.value || 0.1;
                value = (value * 100).toFixed(0);
                this.setData('value', value);
            },
            fail: err => {
                console.log('getScreenBrightness fail', err);
            }
        });
    },
    brightnessChange(e) {
        const value = e.detail.value;
        this.setData('value', value);

        swan.setScreenBrightness({
            value: parseFloat(value / 100),
            success: res => {
                console.log('setScreenBrightness success');
            },
            fail: err => {
                console.log('setScreenBrightness fail', err);
            }
        });
    },
    keepScreenOn(e) {
        swan.setKeepScreenOn({
            keepScreenOn: e.detail.checked,
            success: res => {
                console.log('keepScreenOn success', res);
            },
            fail: err => {
                console.log('keepScreenOn fail', err);
            }
        });
    }
});

错误码

Android

iOS