tradingview / lightweight-charts-android

Android wrapper for lightweight-charts library

Lightweight-charts-android

The Android Lightweight Charts is an Android wrapper of the TradingView Lightweight Charts library.

Requirements

• minSdkVersion 21
• Installed WebView with support of ES6

How to use

In /build.gradle

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

In /gradle_module/build.gradle

dependencies {
    //...
    implementation 'com.tradingview:lightweightcharts:4.0.0'
}

Add view to the layout.

<androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <com.tradingview.lightweightcharts.view.ChartsView
            android:id="@+id/charts_view"
            android:layout_width="0dp"
            android:layout_height="0dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

Configure the chart layout.

charts_view.api.applyOptions {
    layout = layoutOptions {
        backgroundColor = Color.LTGRAY.toIntColor()
        textColor = Color.BLACK.toIntColor()
    }
    localization = localizationOptions {
        locale = "ru-RU"
        priceFormatter = PriceFormatter(template = "{price:#2:#3}$")
        timeFormatter = TimeFormatter(
            locale = "ru-RU",
            dateTimeFormat = DateTimeFormat.DATE_TIME
        )
    }
}

Add any series to the chart and store a reference to it.

lateinit var histogramSeries: SeriesApi
charts_view.api.addHistogramSeries(
    onSeriesCreated = { series ->
        histogramSeries = series
    }
)

Add data to the series.

val data = listOf(
    HistogramData(Time.BusinessDay(2019, 6, 11), 40.01f),
    HistogramData(Time.BusinessDay(2019, 6, 12), 52.38f),
    HistogramData(Time.BusinessDay(2019, 6, 13), 36.30f),
    HistogramData(Time.BusinessDay(2019, 6, 14), 34.48f),
    WhitespaceData(Time.BusinessDay(2019, 6, 15)),
    WhitespaceData(Time.BusinessDay(2019, 6, 16)),
    HistogramData(Time.BusinessDay(2019, 6, 17), 41.50f),
    HistogramData(Time.BusinessDay(2019, 6, 18), 34.82f)
)
histogramSeries.setData(data)

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this software except in compliance with the License. You may obtain a copy of the License at LICENSE file. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

This software incorporates several parts of tslib (https://github.com/Microsoft/tslib, (c) Microsoft Corporation) that are covered by the Apache License, Version 2.0.

This license requires specifying TradingView as the product creator. You shall add the "attribution notice" from the NOTICE file and a link to https://www.tradingview.com/ to the page of your website or mobile application that is available to your users. As thanks for creating this product, we'd be grateful if you add it in a prominent place.