Android Question Heartbeatview does not compile

[grafsoft]

Hi,,

I wanted to compile, but it did not find android-support-v4.jar.

I followed the hint given by DonManfred in https://www.b4x.com/android/forum/t...braries-android-support-v4-jar.69059/#content

Now I get "not found: C:\Program Files (x86)\Anywhere Software\Basic4android\libraries\android-support-v4.jar"

Pls help

 

[Erel]

Post a link to the project

 

[grafsoft]

HeartBeatView

It is a wrap for this Github project You need to enable AppCompat V3.20 in the libs tab of the B4A project. Attached the B4A sample project, the B4A library files, and the Java code. You will need a recent version of android-support-v4.jar in your additional library folder as well as...

www.b4x.com

 

[Erel]

This is an old and unmaintained library. Don't use such libraries.

Here, cross platform code:

Private Sub AnimateHeart
    Dim SmallSize As Int = 100dip
    Dim LargeSize As Int = 130dip
    Dim cx = imgHeart.Left + imgHeart.Width / 2, cy = imgHeart.Top + imgHeart.Height / 2 As Int
   
    Dim StartTime As Long = DateTime.Now
    Do While True
        Dim PulseIntervalMs As Int = 60000 / RatePerMinute
        Dim x As Float = ((DateTime.Now - StartTime) Mod PulseIntervalMs) / PulseIntervalMs
        Dim size As Float
        If x <= 0.5 Then
            size = SmallSize + (LargeSize - SmallSize) * x * 2 'growing
        Else
            size = LargeSize - (LargeSize - SmallSize) * (x - 0.5) * 2 'shrinking
        End If
        imgHeart.SetLayoutAnimated(0, cx - size / 2, cy - size / 2, size, size)
        Sleep(10)
    Loop
End Sub

Test it in release mode.

 

[grafsoft]

Works, thanks.

But I put the wrong question: I need the real heart rate from a device.

I tried this:

BLE - Heart Rate Monitor

HeartRateMonitor class searches for peripherals with the heart rate service (0x180D). Once a peripheral device is found and connected then a notification is set for the heart rate measurement characteristic (0x2A37). The DataAvailable event is raised whenever the heart rate changes. The heart...

www.b4x.com

I added this to main.b4a:

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    Private hr As HeartRate
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Layout")
     hr.Initialize
End Sub

But I seem not to understand the class right. All I get is "state changed: 12".

The real device is on my hand and sends data to the android cell phone.

What am I doing wrong?

Thanks!!

 

[Erel]

But I put the wrong question: I need the real heart rate from a device.

It doesn't work like this. You posted a question. I worked hard to give you a good answer.
This thread is closed.