init

xhs-mini-demos/api-case/screen-brightness/screen-brightness.css

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+.page-body-text-screen-brightness {
+  font-size: 40px;
+  font-family: -apple-system-font, Helvetica Neue,Helvetica,sans-serif;
+}
+
+.page-section-gap {
+  padding: 15px;
+}

xhs-mini-demos/api-case/screen-brightness/screen-brightness.js

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+Page({
+  onShareAppMessage() {
+    return {
+      title: '屏幕亮度',
+      path: 'packageAPI/pages/screen-brightness/screen-brightness',
+    };
+  },
+
+  data: {
+    screenBrightness: 0,
+  },
+
+  onLoad() {
+    this._updateScreenBrightness();
+  },
+
+  changeBrightness(e) {
+    const value = Number.parseFloat(
+      (e.detail.value).toFixed(1),
+    );
+    this.setData({
+      screenBrightness: Number.parseFloat(
+        e.detail.value.toFixed(1),
+      ),
+    });
+    xhs.setScreenBrightness({
+      value,
+
+    });
+  },
+
+  _updateScreenBrightness() {
+    xhs.getScreenBrightness({
+      success: res => {
+        console.log(res);
+        this.setData({
+          screenBrightness: Number.parseFloat(
+            res.value.toFixed(1),
+          ),
+        });
+      },
+      fail(err) {
+        console.error(err);
+      },
+    });
+  },
+});

xhs-mini-demos/api-case/screen-brightness/screen-brightness.json

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+{
+  "navigationBarTitleText": "屏幕亮度"
+}

xhs-mini-demos/api-case/screen-brightness/screen-brightness.xhsml

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+<view class="container">
+  <view class="page-body">
+    <view class="page-body-info">
+      <view class="page-body-title">当前屏幕亮度</view>
+      <text class="page-body-text-screen-brightness">{{screenBrightness}}</text>
+    </view>
+    <view class="page-section page-section-gap">
+      <view class="page-section-title">设置屏幕亮度</view>
+      <view class="body-view">
+        <slider bindchange="changeBrightness" value="{{screenBrightness}}" min="0" max="1" step="0.1"/>
+      </view>
+    </view>
+  </view>
+</view>