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Light Flow - Use Your Android Notification LED

March 25, 2013
Light Flow - Use Your Android Notification LED

Customizing Android Notifications with Light Flow

A significant number of Android devices are equipped with a built-in notification LED. The Light Flow application allows users to personalize their phone’s LED notifications.

This customization enables the LED to illuminate in various colors, each corresponding to different notification types. Consequently, your device can effectively convey alerts even when the screen is inactive.

Hardware Compatibility

For Light Flow to function correctly, your Android phone must possess an LED capable of displaying a spectrum of colors. This functionality is determined by the device’s underlying hardware specifications.

Several popular phone models include the necessary hardware. These include the Nexus 4, the Galaxy S III, and numerous devices from Motorola and HTC.

The ability to utilize Light Flow and its color-coded notifications is therefore contingent upon your phone’s LED capabilities.

Receive Alerts Even With a Dark Screen

Consider a scenario where your mobile device is resting on a surface, or you've just retrieved it from your pocket with the display powered down. What information awaits you upon activation? Perhaps an urgent text message or a missed phone call requires your immediate attention?

Is the device's battery running low? Or maybe you have a pending email or a scheduled calendar event? A flashing notification LED indicates that your phone has something to communicate.

Customizing Your Notifications with Light Flow

However, the nature of the notification isn't immediately clear. Light Flow empowers you to assign unique LED colors to specific notifications.

For example, a yellow flash could signify a missed call, while a green light indicates a new text message. A blue light might represent a new email, and a red light could alert you to a low battery condition requiring a charge.

The application provides granular control over which notification types trigger the LED. Light Flow is compatible with notifications originating from more than 550 different applications.

  • Customize LED colors for various apps.
  • Receive alerts for missed calls, texts, emails, and more.
  • Monitor battery levels at a glance.

This level of customization ensures you can quickly identify the importance of each alert without even unlocking your device.

Customizing Android Notifications with Light Flow

To begin, verify that your Android device is equipped with a notification LED capable of displaying multiple colors. Compatibility details for various phone models are available on the official Light Flow website.

Certain devices may require root access to unlock the full functionality of the application. Color limitations, such as a maximum of three displayable colors, or LED visibility only when the screen is inactive, are also dependent on the specific phone model.

Light Flow: Free vs. Pro

Light Flow is available in both a free version, Light Flow Lite, and a paid, professional version. The free application takes approximately 20 seconds to alter the notification LED color.

In contrast, the $2 Light Flow Pro version boasts a significantly faster response time, changing the LED color every 2.5 seconds. Furthermore, the Pro edition extends support to a wider range of third-party applications beyond the standard notifications included in the Lite version.

  • Faster color changes with the Pro version.
  • Expanded app compatibility in the Pro version.
  • Potential need for rooting depending on your device.

The functionality and limitations of the notification LED are determined by the phone’s hardware and software.

Configuring Light Flow

Upon initial installation of Light Flow, the application will request permission to activate an accessibility service. This enablement is essential for the app’s functionality. The app necessitates several permissions to effectively monitor incoming notifications.

Importantly, Light Flow does not require internet access, ensuring your data remains private and secure. Even if malicious intent existed, the lack of internet connectivity prevents unauthorized data transmission.

Initial Settings and Customization

Light Flow is pre-configured with distinct colors for various notification types. These include alerts for missed phone calls, text messages, low battery warnings, instant messages, and incoming emails.

Users can personalize these notification colors by navigating to the Notifications icon, selecting the specific notification category, and choosing a preferred color scheme.

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Advanced Configuration Options

Beyond color selection, a range of additional settings can be adjusted for each notification type. These include the duration of the light display and the frequency of its flashing.

However, it’s important to note that the precise behavior of these settings is also dependent on the capabilities of your device’s hardware.

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Notification Priority Order

The color displayed by the notification LED is determined by the configured “notification priority order.” This order can be managed by tapping the button labeled “Notification Priority Order” – identified by the numerical icon – located in the top-right corner of the Notifications screen.

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Display Modes

Within Light Flow’s Settings, you can define how the notification priority order is applied. Options include “Show Latest Only,” which displays the most recent notification, “Show Highest Priority Only,” and “Cycle all,” which sequentially displays all configured notification colors.

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Additional Settings and Features

The Settings screen offers a variety of further adjustments to optimize Light Flow’s performance across different devices. A “sleep mode” is available to disable the notification LED during specified hours, conserving battery life.

A “More Apps” section, exclusive to the paid version, allows for the assignment of custom notification colors to hundreds of third-party applications.

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For Android users seeking a method of receiving alerts without activating the screen, Light Flow provides an effective solution. This functionality exemplifies a unique capability of the Android operating system, not found on Apple’s iPhone.

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