M sensor manager not loading

[lessthan1]

Apparently, I've followed your installation steps using rnpm and after pasting sensor manager + accelerometer code to my blank new project an error was caused because require('NativeModules').SensorManager; did not load anything. Any reason why?

'undefined is not an object(evaluating mSensorManager.startAccelerometer)'

[marktolson]

I also received this issue after using the npm installer. I have not worked out how to get it going yet.

[lessthan1]

I have looked at the whole require('NativeModules') object and it seems like the module is not there. You said that you received this issue when using npm... Is there a different way of installing it? Thx.

[lessthan1]

And if you managed to make it work (even without nativeModules) could you please upload and send me your project? I might be able to do something with it....

[abdelmalekkkkk]

Hey, I'm having the same problem. Can someone help please

[kprimice]

I will look into it as soon as I have time. It's probably due to an update or so...

[abdelmalekkkkk]

I just found a solution. If you installed it using 'rnpm link' you should do one more thing, and that is to register the modules in the MainApplication.java file under android/src/main/java/com/...
You can do that by adding these lines:

import com.sensormanager.SensorManagerPackage; // <------ add package

public class MainActivity extends ReactActivity {
   // ...
    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
        new MainReactPackage(), // <---- add comma
        new SensorManagerPackage() // <---------- add package
      );
    }

[kprimice]

rnpm used to take care about that...
Thank you for sharing!

[abdelmalekkkkk]

It still does I think, but it changes the wrong file.
I found this line in my MainActivity file
import com.sensormanager.SensorManagerPackage;

[marktolson]

I had to use rnpm to get this to work however the suggested fix does not work with npm (at least last time I tried).

[mileung]

This solution doesn't work for me. This is what my MainActivity.java file looks like (moonphase is my app's name)

package com.moonphase;

import java.util.Arrays;
import java.util.List;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;

import com.facebook.react.ReactActivity;
import com.sensormanager.SensorManagerPackage;

public class MainActivity extends ReactActivity {

    /**
     * Returns the name of the main component registered from JavaScript.
     * This is used to schedule rendering of the component.
     */
    @Override
    protected String getMainComponentName() {
        return "MoonPhase";
    }

    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
        new MainReactPackage(), // <---- add comma
        new SensorManagerPackage() // <---------- add package
      );
    }
}

I'm not using @Override for getPackages because if I do, my terminal will throw an error saying I'm not overriding anything.

[cristianszwarc]

similar issues here, followed the manual instructions and getting the "error: method does not override or implement a method from a supertype", and not working if I remove the override

hope some one find what's the issue 👍

android/settings.gradle

...
include ':react-native-sensor-manager'
project(':react-native-sensor-manager').projectDir = new File(settingsDir, '../node_modules/react-native-sensor-manager/android')

android/app/build.gradle

...
dependencies {
    ...
    compile project(':react-native-sensor-manager')
}
...

MainActivity.jaja

package com.androidsen;

import com.facebook.react.ReactActivity;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.sensormanager.SensorManagerPackage; // <------ add package

import java.util.Arrays;
import java.util.List;

public class MainActivity extends ReactActivity {

    /**
     * Returns the name of the main component registered from JavaScript.
     * This is used to schedule rendering of the component.
     */
    @Override
    protected String getMainComponentName() {
        return "androidSen";
    }

    @Override // <----- error: method does not override or implement a method from a supertype
    protected List<ReactPackage> getPackages() {
       return Arrays.<ReactPackage>asList(
         new MainReactPackage(), // <---- add comma
         new SensorManagerPackage() // <---------- add package
       );
     }

}

index.android.js

...
import { SensorManager } from 'NativeModules';
...
componentDidMount() {
    SensorManager.startGyroscope(100);
    DeviceEventEmitter.addListener('Gyroscope', function (data) {
      console.log(data);
    });
  }
....

[yf-hk]

@mileung @cristianszwarc The manual modification should be in MainApplication.java rather than in MainActivity.java