[pedometer]android build faild,but debug run is ok about flutter-plugins

[MaskyS]

I'm planning to do a write-up about it on my blog soon, but roughly, here's how I did it:
You'll need the following vars:

• savedStepCount to save previous days' step count (e.g using shared_preferences). If you already save and display/use/show previous days' step count, you cannot use that var for this purpose, as this savedStepCount will reset intermittently
• lastDaySaved, either an int or a DateTime to save the last time you "reset" your pedometer. this will become apparent shortly. persist this as well.
• value is the count received from the pedometer stream
• todayStepCount

      if (value < savedStepCount) {
        // Upon device reboot, pedometer resets. When this happens, the saved counter must be reset as well.
        savedStepCount = 0;
        // {persist this value using a package of your choice here}
      }

      var lastDaySaved;
      // {load the saved value using a package of your choice here}

      if (lastDaySaved < todayDayNo) { // whether you use int or DateTime, this should only return true once every 24 hours, otherwise your value will reset too frequently.
        
        lastDaySaved = todayDayNo
        // {save lastDaySaved here}
        savedStepCount = value;
        // {save savedStepCount here}
      }

      todayStepCount = value - savedStepCount;
      return todayStepCount; // this is your daily steps value.

Hope this helps. If anyone finds a neater solution, please drop it here!

[MaskyS]

Migrate to androidX: https://github.com/cph-cachet/flutter-plugins/pull/40/files

[k3v1n-uncle]

I did already,and fix it,but I got a question,does the step is today’s or what 发送自 Windows 10 版邮件<https://go.microsoft.com/fwlink/?LinkId=550986>应用 发件人: Kifah Meeran<mailto:[email protected]> 发送时间: 2020年2月26日 23:16 收件人: cph-cachet/flutter-plugins<mailto:[email protected]> 抄送: xuwankang<mailto:[email protected]>; Author<mailto:[email protected]> 主题: Re: [cph-cachet/flutter-plugins] [pedometer]android build faild,but debug run is ok (#56) Migrate to androidX: https://github.com/cph-cachet/flutter-plugins/pull/40/files ― You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#56?email_source=notifications&email_token=AEX7EFDIWT5MMK2G3EMW4ULRE2BUNA5CNFSM4K267YX2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOENAT4PI#issuecomment-591478333>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AEX7EFCAKWKN5SHWJ4AOUP3RE2BUNANCNFSM4K267YXQ>.

[MaskyS]

I'm confused about that myself, I've seen past issues report that the steps are cumulative and don't reset, but I have to test

…

On Wed, Feb 26, 2020, 7:19 PM xuwankang ***@***.***> wrote: I did already,and fix it,but I got a question,does the step is today’s or what 发送自 Windows 10 版邮件<https://go.microsoft.com/fwlink/?LinkId=550986>应用 发件人: Kifah ***@***.***> 发送时间: 2020年2月26日 23:16 收件人: ***@***.***> 抄送: ***@***.***>; Author<mailto: ***@***.***> 主题: Re: [cph-cachet/flutter-plugins] [pedometer]android build faild,but debug run is ok (#56) Migrate to androidX: https://github.com/cph-cachet/flutter-plugins/pull/40/files ― You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub< #56?email_source=notifications&email_token=AEX7EFDIWT5MMK2G3EMW4ULRE2BUNA5CNFSM4K267YX2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOENAT4PI#issuecomment-591478333>, or unsubscribe< https://github.com/notifications/unsubscribe-auth/AEX7EFCAKWKN5SHWJ4AOUP3RE2BUNANCNFSM4K267YXQ>. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#56?email_source=notifications&email_token=AFRISQ7OSTBLQ2SJWYHZDKLRE2B7ZA5CNFSM4K267YX2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOENAUJEA#issuecomment-591479952>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AFRISQ36EPWWFJONYDLHG3LRE2B7ZANCNFSM4K267YXQ> .

[MaskyS]

@xuwankang steps are cumulative but reset whenever device is rebooted.

[k3v1n-uncle]

Thanks,but do you know how to get today’s steps? 发送自 Windows 10 版邮件<https://go.microsoft.com/fwlink/?LinkId=550986>应用 发件人: Kifah Meeran<mailto:[email protected]> 发送时间: 2020年3月4日 18:35 收件人: cph-cachet/flutter-plugins<mailto:[email protected]> 抄送: xuwankang<mailto:[email protected]>; Mention<mailto:[email protected]> 主题: Re: [cph-cachet/flutter-plugins] [pedometer]android build faild,but debug run is ok (#56) @xuwankang<https://github.com/xuwankang> steps are cumulative but reset whenever device is rebooted. ― You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub<#56?email_source=notifications&email_token=AEX7EFFKSORZYRG2JG6RH23RFYVIPA5CNFSM4K267YX2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOENXIEDA#issuecomment-594444812>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AEX7EFDUU6OSLCCUYCIRLHDRFYVIPANCNFSM4K267YXQ>.

[smallstepman]

To fix this, I had to

git clone https://github.com/cph-cachet/flutter-pluginsthis 
mkdir my_flutter_project_dir/packages
cp flutter-plugins/packages/pedometer my_flutter_project_dir/packages

then in my_flutter_project_dir/packages/pedometer/android/build.gradle I changed

dependencies {
        classpath 'com.android.tools.build:gradle:3.5.2'  // <- bump
    }
    

android {
    compileSdkVersion 28 // <- bump

    defaultConfig {
        minSdkVersion 16
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 
//                                 ^ bump to androidX
    }
    lintOptions {
        disable 'InvalidPackage'
    }

Finally in pubspac.yaml, I changed

dependencies:
  pedometer: ^1.0.0

to

dependencies:
  pedometer:
    path: packages/pedometer

and built my project

[smallstepman]

to extend on @MaskyS wonderful post, here is my implementation of his idea, with a bonus of being able to preserve today steps count over reboot
value is the value passed directly from steps counter stream

Future<int> getTodaySteps(int value) async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  int todayDayNo = DateTime.now().day;
  int savedStepCount = prefs.getInt('savedStepCount') ?? 0;
  int lastDaySaved = prefs.getInt('lastDaySaved') ?? 0;
  int todaySteps = prefs.getInt('todaySteps') ?? 0;
  int lastValue = prefs.getInt('stepsLastValue') ?? 0;
  prefs.setInt('stepsLastValue', value);

  // device reboot
  if (savedStepCount > value) {
    prefs.setInt('savedStepCount', 0);
    savedStepCount = 0;
  }

  // next day
  if (todayDayNo > lastDaySaved) {
    prefs.setInt('lastDaySaved', todayDayNo);
    prefs.setInt('savedStepCount', value);
    prefs.setInt('todaySteps', 0);
    savedStepCount = value;
    todaySteps = 0;
  }

  if (savedStepCount == 0 && todaySteps > value) {
    if (value < 10) {
      prefs.setInt('todaySteps', value + todaySteps);
    } else {
      prefs.setInt('todaySteps', value - lastValue + todaySteps);
    }
  } else {
    prefs.setInt('todaySteps', value - savedStepCount);
  }

  todaySteps = prefs.getInt('todaySteps') ?? 0;

  if (todaySteps > 0) {
    return todaySteps; 
  } else {
    return 0;
  }
}

• if (todaySteps > 0) is an overkill to make sure I never run into some sticky situation where I display negative step count in UI
• if (value < 10) is to make sure there is ten step buffor for a sensor to catch up after reboot, otherwise, it would substract lastValue recorded before the reboot, from value which would be equal to 0 after reboot

[thomasnilsson]

Hi, the latest version of the Pedometer plugin (1.2.0) has the same behaviour on both platforms, i.e. reporting the step count since last reboot.

The idea of keeping track of the step count between boots is great but our philosophy on the plugins is that they have to be quite simple and 'lean' since there is always a wide array of use cases, for each case a different implementation would be preferred.

This means you will have to store these things yourselves, perhaps make a package (not a plugin) which uses the pedometer plugin?

[MaskyS]

I finally got around to writing down a full-blown code sample for tracking daily steps. Here's the blog post and the code.

[deepakneelakandan]

I finally got around to writing down a full-blown code sample for tracking daily steps. Here's the blog post and the code.

Great @MaskyS but when I kill the app, the value resets, is there any solution for that

[yogeshButani]

to extend on @MaskyS wonderful post, here is my implementation of his idea, with a bonus of being able to preserve today steps count over reboot value is the value passed directly from steps counter stream

Future<int> getTodaySteps(int value) async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  int todayDayNo = DateTime.now().day;
  int savedStepCount = prefs.getInt('savedStepCount') ?? 0;
  int lastDaySaved = prefs.getInt('lastDaySaved') ?? 0;
  int todaySteps = prefs.getInt('todaySteps') ?? 0;
  int lastValue = prefs.getInt('stepsLastValue') ?? 0;
  prefs.setInt('stepsLastValue', value);

  // device reboot
  if (savedStepCount > value) {
    prefs.setInt('savedStepCount', 0);
    savedStepCount = 0;
  }

  // next day
  if (todayDayNo > lastDaySaved) {
    prefs.setInt('lastDaySaved', todayDayNo);
    prefs.setInt('savedStepCount', value);
    prefs.setInt('todaySteps', 0);
    savedStepCount = value;
    todaySteps = 0;
  }

  if (savedStepCount == 0 && todaySteps > value) {
    if (value < 10) {
      prefs.setInt('todaySteps', value + todaySteps);
    } else {
      prefs.setInt('todaySteps', value - lastValue + todaySteps);
    }
  } else {
    prefs.setInt('todaySteps', value - savedStepCount);
  }

  todaySteps = prefs.getInt('todaySteps') ?? 0;

  if (todaySteps > 0) {
    return todaySteps; 
  } else {
    return 0;
  }
}

• if (todaySteps > 0) is an overkill to make sure I never run into some sticky situation where I display negative step count in UI
• if (value < 10) is to make sure there is ten step buffor for a sensor to catch up after reboot, otherwise, it would substract lastValue recorded before the reboot, from value which would be equal to 0 after reboot

This code works fine, but want to know that ho to reset steps to 0 daily? for example, when a new day starts, the steps count should be automatically set to 0 even if i don't open the app on that day

for example after 12am, new day have started and i have taken the steps, so when i open the app, i need to see updated step count for that day...it means we have to run above function in backgroud and it should be automatically hit without opening the app, whenver new day starts.