B4A Library SnakeView

DonManfred · Oct 25, 2015

This is a wrapper for this github project.
Quote from Githubproject

Snake library is a simple and animation line chart for Android.

SnakeView
Version: 2

SnakeView
Fields:
- ba As BA
Methods:
- AddToParent (Parent As ViewGroup, left As Int, top As Int, width As Int, height As Int)
- BringToFront
- DesignerCreateView (base As PanelWrapper, lw As LabelWrapper, props As Map)
- Initialize (EventName As String)
- Invalidate
- Invalidate2 (arg0 As Rect)
- Invalidate3 (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)
- IsInitialized As Boolean
- RemoveView
- RequestFocus As Boolean
- SendToBack
- SetBackgroundImage (arg0 As Bitmap)
- SetColorAnimated (arg0 As Int, arg1 As Int, arg2 As Int)
- SetLayout (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)
- SetLayoutAnimated (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int, arg4 As Int)
- SetVisibleAnimated (arg0 As Int, arg1 As Boolean)
- addValue (value As Float)
- clear
Properties:
- Background As Drawable
- Color As Int [write only]
- Enabled As Boolean
- Height As Int
- Left As Int
- MaxValue As Float [write only]
- MaximumNumberOfValues As Int [write only]
- MinValue As Float [write only]
- StrokeColor As Int
- StrokeWidth As Int
- Tag As Object
- Top As Int
- Visible As Boolean
- Width As Int

If you want to donate for my work building the wrapper you can do it here:

Scantech · Jan 5, 2016

Can't install. Error with OS 2.3 Emulator

B4X:

** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
main_activity_create (java line: 332)
java.lang.NoClassDefFoundError: android.animation.ObjectAnimator
   at com.github.SnakeView.playAnimation(SnakeView.java:305)
   at com.github.SnakeView.addValue(SnakeView.java:104)
   at de.donmanfred.SnakeViewWrapper.addValue(SnakeViewWrapper.java:56)
   at b4a.snakeview.main._activity_create(main.java:332)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:507)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
   at b4a.snakeview.main.afterFirstLayout(main.java:102)
   at b4a.snakeview.main.access$000(main.java:17)
   at b4a.snakeview.main$WaitForLayout.run(main.java:80)
   at android.os.Handler.handleCallback(Handler.java:587)
   at android.os.Handler.dispatchMessage(Handler.java:92)
   at android.os.Looper.loop(Looper.java:123)
   at android.app.ActivityThread.main(ActivityThread.java:3683)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:507)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
   at dalvik.system.NativeStart.main(Native Method)
main_activity_create (java line: 332)
java.lang.NoClassDefFoundError: android.animation.ObjectAnimator
   at com.github.SnakeView.playAnimation(SnakeView.java:305)
   at com.github.SnakeView.addValue(SnakeView.java:104)
   at de.donmanfred.SnakeViewWrapper.addValue(SnakeViewWrapper.java:56)
   at b4a.snakeview.main._activity_create(main.java:332)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:507)
   at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
   at b4a.snakeview.main.afterFirstLayout(main.java:102)
   at b4a.snakeview.main.access$000(main.java:17)
   at b4a.snakeview.main$WaitForLayout.run(main.java:80)
   at android.os.Handler.handleCallback(Handler.java:587)
   at android.os.Handler.dispatchMessage(Handler.java:92)
   at android.os.Looper.loop(Looper.java:123)
   at android.app.ActivityThread.main(ActivityThread.java:3683)
   at java.lang.reflect.Method.invokeNative(Native Method)
   at java.lang.reflect.Method.invoke(Method.java:507)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
   at dalvik.system.NativeStart.main(Native Method)

DonManfred · Jan 5, 2016

Scantech said:
android.animation.ObjectAnimator

Added in API level 11

JTmartins · Jan 8, 2016

Hi. Very interesting.

What does the args in the several methods stands for ?

example : SetLayout (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)

what does this args values mean ?

I looked in the git hub, but could find any clue.

Many thanks Don.

DonManfred · Jan 8, 2016

JTmartins said:
example : SetLayout (arg0 As Int, arg1 As Int, arg2 As Int, arg3 As Int)

these are part of the VIEW-Wrapper which is used...

I think it will be LEFT, TOP, WIDTH and HEIGHT....

Tronak · Jul 26, 2017

Hi Don. Great work you have done with all your modules. I just found that when putting together this library, and MaterialIcons v1.5, I get this error when compiling:

B4X:

Convert byte code - optimized dex.    Error
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/github/R;
Uncaught translation error: java.lang.IllegalArgumentException: already added: Lcom/github/R$styleable;
2 errors; aborting

There is something to configure, or just don't use those two things together?

DonManfred · Jul 27, 2017

Try adding this line to your mainmodule

B4X:

#MultiDex: true

Erel · Jul 27, 2017

Both SnakeView.jar and MaterialIcons.jar include classes named com\github\R.class and R$stylable.class.

I don't know whether these classes are required or not. You can try to delete one set of classes.

DonManfred · Jul 27, 2017

Tronak said:
There is something to configure, or just don't use those two things together?

Check #1 again.
I rewrote the library.
No need for additional resources anymore.

ReDownload lib (V2) and example from #1 and try again please.

DonManfred · Jul 27, 2017

Erel said:
I don't know whether these classes are required or not.

@Johan Schoeman told me how to do it to remove the needed Resources.
Based on this i rewrote the lib today. No need for #additionalres anymore with this lib

Tronak · Jul 27, 2017

Thank you!

Johan Schoeman · Jul 30, 2017

DonManfred said:
@Johan Schoeman told me how to do it to remove the needed Resources.
Based on this i rewrote the lib today. No need for #additionalres anymore with this lib

Manfred, you did not learn this from me. I learnt it from you. Maybe you just missed it when you were showing me the ropes of how to wrap a view....

DonManfred · Jul 30, 2017

Johan Schoeman said:
Maybe you just missed it when you were showing me the ropes of how to wrap a view....

Maybe. But, honestly spoken, i did not realized it this way at the time i was teaching you.

I think you told this in the "special person - groupchat"...

This has opened my eyes on this. Or maybe. this was the point with the "CLICK"

Willy Bayot · Aug 27, 2017

It seems that the StrokeColor and StrokeWidthinPx methods do not give correct displayed results.
The stroke color remains Green and its width stays as 2 pixels wide.
This is a slightly modified version of the original example program showing that.
I looked at the original JAVA class in the Github site but I do not see any mistake there.

DonManfred · Aug 27, 2017

Try this version

Willy Bayot · Aug 27, 2017

DonManfred said:
Try this version

Indeed, that version works well.
Thanks
WIlly

Rantor777 · Aug 29, 2017

+100 , Useful Library

B4A Library SnakeView

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