Screen brightness-Mobile Platform as a Service(mPaaS)-阿里云帮助中心

Provides APIs for controlling screen brightness and keeping the screen on in Mini Programs.

my.setKeepScreenOn(OBJECT)

Note

Supported since basic library version 1.3.0. For earlier versions, compatibility processing is required. For more information, see Mini Program base library.
Supported in mPaaS 10.1.32 and later.

Sets whether to keep the screen on. This setting only applies to the current Mini Program.

Parameters

Parameter	Type	Required	Description
keepScreenOn	Boolean	Yes	Specifies whether to keep the screen on.
success	Function	No	Callback function upon call success.
fail	Function	No	Callback function upon call failure.
complete	Function	No	Callback function upon call completion (to be executed upon either call success or failure).

Sample code

<!-- API-DEMO page/API/screen/screen.axml-->
<view class="page">
  <view class="page-description">Screen brightness API</view>
  <view class="page-section">
    <view class="page-section-title">Set whether to keep screen on</view>
    <view class="page-section-demo">
      <switch checked="{{status}}" onChange="switchKeepScreenOn"/>
    </view>
  </view>
  <view class="page-section">
    <view class="page-section-title">Set screen brightness</view>
    <view class="page-section-demo">
      <slider value="{{brightness}}" max="1" min="0" onChange="sliderChange" step="0.02"/>
    </view>
  </view>
  <view class="page-section">
    <view class="page-section-title">Get screen brightness</view>
    <view class="page-section-demo">
      <button type="primary" onTap="getBrightness">Get screen brightness</button>
    </view>
  </view>
</view>

// API-DEMO page/API/screen/screen.js
Page({
  data: {
    status: false,
    brightness: 1,
  },
  onLoad() {
    my.getScreenBrightness({
      success: res => {
        this.setData({
          brightness: res.brightness
        })
      },
    })
  },
  sliderChange(e) {
    my.setScreenBrightness({
      brightness: e.detail.value,
      success: (res) => {
        this.setData({
          brightness: e.detail.value,
        })
      }
    })
  },
  switchKeepScreenOn(e) {
    my.setKeepScreenOn({
      keepScreenOn: e.detail.value,
      success: (res) => {
        this.setData({
          status: e.detail.value,
        })
      }
    })
  },
  getBrightness() {
    my.getScreenBrightness({
      success: res => {
        my.alert({
          content: `Current screen brightness: ${res.brightness}`
        });
      }
    })
  }
});

my.getScreenBrightness(OBJECT)

Note

Supported since basic library version 1.4.0. For earlier versions, compatibility processing is required. For more information, see Mini Program base library.
Supported in mPaaS 10.1.32 and later.

Gets the current screen brightness.

Parameters

Parameter	Type	Required	Description
success	Function	No	Callback function upon call success.
fail	Function	No	Callback function upon call failure.
complete	Function	No	Callback function upon call completion (to be executed upon either call success or failure).

Sample code

<!-- API-DEMO page/API/screen/screen.axml-->
<view class="page">
  <view class="page-description">Screen brightness API</view>
  <view class="page-section">
    <view class="page-section-title">Set whether to keep screen on</view>
    <view class="page-section-demo">
      <switch checked="{{status}}" onChange="switchKeepScreenOn"/>
    </view>
  </view>
  <view class="page-section">
    <view class="page-section-title">Set screen brightness</view>
    <view class="page-section-demo">
      <slider value="{{brightness}}" max="1" min="0" onChange="sliderChange" step="0.02"/>
    </view>
  </view>
  <view class="page-section">
    <view class="page-section-title">Get screen brightness</view>
    <view class="page-section-demo">
      <button type="primary" onTap="getBrightness">Get screen brightness</button>
    </view>
  </view>
</view>

// API-DEMO page/API/screen/screen.js
Page({
  data: {
    status: false,
    brightness: 1,
  },
  onLoad() {
    my.getScreenBrightness({
      success: res => {
        this.setData({
          brightness: res.brightness
        })
      },
    })
  },
  sliderChange(e) {
    my.setScreenBrightness({
      brightness: e.detail.value,
      success: (res) => {
        this.setData({
          brightness: e.detail.value,
        })
      }
    })
  },
  switchKeepScreenOn(e) {
    my.setKeepScreenOn({
      keepScreenOn: e.detail.value,
      success: (res) => {
        this.setData({
          status: e.detail.value,
        })
      }
    })
  },
  getBrightness() {
    my.getScreenBrightness({
      success: res => {
        my.alert({
          content: `Current screen brightness: ${res.brightness}`
        });
      }
    })
  }
});

my.setScreenBrightness(OBJECT)

Note

Supported since basic library version 1.4.0. For earlier versions, compatibility processing is required. For more information, see Mini Program base library.
Supported in mPaaS 10.1.32 and later.

Sets the screen brightness.

Parameters

Parameter	Type	Required	Description
brightness	Number	Yes	The screen brightness to set. Valid values: 0 to 1.
success	Function	No	Callback function upon call success.
fail	Function	No	Callback function upon call failure.
complete	Function	No	Callback function upon call completion (to be executed upon either call success or failure).

Sample code

<!-- API-DEMO page/API/screen/screen.axml-->
<view class="page">
  <view class="page-description">Screen brightness API</view>
  <view class="page-section">
    <view class="page-section-title">Set whether to keep screen on</view>
    <view class="page-section-demo">
      <switch checked="{{status}}" onChange="switchKeepScreenOn"/>
    </view>
  </view>
  <view class="page-section">
    <view class="page-section-title">Set screen brightness</view>
    <view class="page-section-demo">
      <slider value="{{brightness}}" max="1" min="0" onChange="sliderChange" step="0.02"/>
    </view>
  </view>
  <view class="page-section">
    <view class="page-section-title">Get screen brightness</view>
    <view class="page-section-demo">
      <button type="primary" onTap="getBrightness">Get screen brightness</button>
    </view>
  </view>
</view>

// API-DEMO page/API/screen/screen.js
Page({
  data: {
    status: false,
    brightness: 1,
  },
  onLoad() {
    my.getScreenBrightness({
      success: res => {
        this.setData({
          brightness: res.brightness
        })
      },
    })
  },
  sliderChange(e) {
    my.setScreenBrightness({
      brightness: e.detail.value,
      success: (res) => {
        this.setData({
          brightness: e.detail.value,
        })
      }
    })
  },
  switchKeepScreenOn(e) {
    my.setKeepScreenOn({
      keepScreenOn: e.detail.value,
      success: (res) => {
        this.setData({
          status: e.detail.value,
        })
      }
    })
  },
  getBrightness() {
    my.getScreenBrightness({
      success: res => {
        my.alert({
          content: `Current screen brightness: ${res.brightness}`
        });
      }
    })
  }
});