superpenguin / charting-library-flutter Goto Github PK

I'm trying to hook up the chart with live data. How and what should I return to subscribeBars function?

It takes several seconds to probably start the server and load up charts. I am trying to see what could be optimized to make it faster and close to what we experience on tradingview website.

Can you please suggest or update code for faster chart load time? I could possibly think of keeping the server started in advance.

Kindly share possible solutions.

Hi
After building and running the app I am not able to see the random historical bars and getting this symbol not found error.
I made this change since the arguments have changed.

Please see if you are able to see the bars on the app.

I am trying to get a api key for tradingview and have read that i need a profile on the developer platform but cant find anything.. Do you have any advise ?

Hope you are having a nice day
kind regards Jonas Jessen

Does this work on Android, iOS？

The chart does show up but the data is not from the ChartingLibraryWidgetOptions, it's still showing the Apple Inc

I have been trying to figure it out but couldn't get it working. Can you please expand and share details and possible example on what should go inside the public directory. I am using the instruction given below:

=========================================================================================
Create folder assets/tvchart/public, and paste all files charting-library needed (the one needed from library_path). This is assets folder should like right now.

=========================================================================================

Mobile works great :)

It would be great to have a single webview implementation that works for the web as well.

Possibly https://pub.dev/packages/webviewx

vmacair@vMacAir chart-project % pwd
/Users/vmacair/StudioProjects/charting-library-flutter/chart-project
vmacair@vMacAir chart-project % ls -ltr
total 1192
drwxr-xr-x 6 vmacair staff 192 Jul 25 22:40 src
drwxr-xr-x 2 vmacair staff 64 Jul 25 23:02 dist
drwxr-xr-x 539 vmacair staff 17248 Jul 25 23:02 node_modules
-rw-r--r-- 1 vmacair staff 602183 Jul 25 23:02 package-lock.json
-rw-r--r-- 1 vmacair staff 482 Jul 25 23:02 package.json
vmacair@vMacAir chart-project % ls -ltr src/charting-library
total 168
-rwxrwxrwx 1 vmacair staff 12463 Jul 25 09:46 index.js
-rwxrwxrwx 1 vmacair staff 67863 Jul 25 09:46 index.d.ts
vmacair@vMacAir chart-project % sudo npm run build

[email protected] build
parcel build src/tvchart.html --public-url ./ --no-content-hash --no-source-maps

🚨 /Users/vmacair/StudioProjects/charting-library-flutter/chart-project/src/tvchart.ts:22:39: Cannot resolve dependency './charting-library/charting_library' at '/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/src/charting-library/charting_library'
at Resolver.resolve (/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Resolver.js:71:17)
at async Bundler.resolveAsset (/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:433:18)
at async Bundler.resolveDep (/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:484:14)
at async /Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:608:26
at async Promise.all (index 1)
at async Bundler.loadAsset (/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:599:21)
at async /Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:610:13
at async Promise.all (index 1)
at async Bundler.loadAsset (/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:599:21)
at async Bundler.processAsset (/Users/vmacair/StudioProjects/charting-library-flutter/chart-project/node_modules/parcel-bundler/src/Bundler.js:557:5)
vmacair@vMacAir chart-project %

I want starter app with a new library. I already have the latest charting library, but the documentation is very poor, and your guide is outdated and chart dosent work

Thank you for your help

We recently did the integration of live data feed as well using your latest guidance and code commit.
Based on our overall testing, there are four specific issues:

1. Volume - It is not showing although we are passing OHLCV for candles. It does show up on the bottom but not next to the price.
2. % change and $$ change. It is showing value from the last candle but not the close price on that day.
3. Charts stop updating mid-day and show market closed. We have set the timezone accurately and it does show accurate value on the chart but three hours after the market opens, it says the market is closed and we are puzzled what parameter is changing that status.
4. Occasionally, charts are blank after some activity or inactivity on the app.