cordova-plugin-network-signal-strength

Apache cordova plugin to detect network signal strength and other network updates such as network types and connection state

Supported Platforms

Android

Installation

from npm repo: $ cordova plugin add cordova-plugin-network-signal-strength

or from git repo: $ cordova plugin add https://github.com/code-flag/cordova-plugin-network-signal-strength.git

Usage

The API has only one method window["networkSignalStrength"].networkInfo(infoType, callback).

• infoType parameter could either be:
  • null : to get all the network details including signal strength, network type and connection state
  • CONNECTION_STATE : to get only the connection state which will return 0 or 1.
    • 0 : disconnected
    • 1 : connected
  • SIGNAL_STRENGTH : to get only the signal strength information.
    • This return an object which include *** rssi, rssq, rssnr, rsrp, signal level and lte level ***

        const signalTypeRange = {
         RSSI: [-113, -51, "dBm"],
         RSSNR: [-20, +30, "dB"],
         RSRQ: [-34, 3, "dB"],
         RSRP: [-140, -43, "dBm"],
         };

  • NETWORK_TYPE : to get type of connected network. Return integer -1 to 4
    • -1 : unknown
    • 0 : disconnected
    • 1 : wifi
    • 2 : 2g
    • 3 : 3g
    • 4 : 4g
    • 5 : roaming
  code snippet

     window['networkSignalStrength']?.networkInfo(null, (networkInfoData) => {
     console.log('network signal data :', networkInfoData)
     });

• You receive -1 as a result if the device is unable to get a known network type and 0 for offline or disconnected state.

   window['networkSignalStrength']?.networkInfo(SIGNAL_STRENGTH, (networkInfoData) => {
   console.log('network signal data :', networkInfoData)
   });

• You should call the window.SignalStrength.dbm only after cordova platform is ready. Example in Ionic framework:

  // ensure platform is ready before calling the plugin method
  $ionicPlatform.ready().then(() => {
    // Platform now ready, execute any required native code
    setInterval(() => {
      window['networkSignalStrength']?.networkInfo(null, (networkInfoData) => {console.log('network signal data :', networkInfoData)});
    }, 5000)
  });

Notes

• window['networkSignalStrength'] is undefined when testing your app on your PC while using ionic serve.
• when you call window['networkSignalStrength'].networkInfo for the first time the device may respond with -1 or 0. Try calling the function again after some delay.

How to Contribute

Use pull request.