Android Radar Chart

This library provides a View that renders a radar chart and a widget for editing the values in the chart.

Installation

Add the dependency to your module's build.gradle file:

dependencies {
    compile 'com.ultramegasoft.radarchart:radar-chart:0.1.5'
}

Usage

For a full example, see the example application in the testapp module. Below is a quick setup guide.

RadarView

1. Add the View to the layout:

<com.ultramegasoft.radarchart.RadarView
    android:id="@+id/radar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true" />

2. Load the View from the layout:

mRadarView = (RadarView)findViewById(R.id.radar);

3. Set the data for the RadarView to display as an ArrayList of RadarHolder objects:

mRadarView.setData(mData);

4. Enable or disable interactive mode:

mRadarView.setInteractive(true);
mRadarView.setInteractive(false);

RadarEditWidget

1. Add the app namespace to the root element of your layout if it is not already added:

xmlns:app="http://schemas.android.com/apk/res-auto"

2. Add the View to the layout:

<com.ultramegasoft.radarchart.RadarEditWidget
    android:id="@+id/edit_widget"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    app:showButtonBar="true" />

3. Load the View from the layout:

mEditWidget = (RadarEditWidget)findViewById(R.id.edit_widget);

4. Set the target RadarView for the RadarEditWidget to control:

mEditWidget.setTarget(mRadarView);

5. If you enabled the button bar, set the callbacks for the buttons:

mEditWidget.setOnButtonClickListener(new RadarEditWidget.OnButtonClickListener() {
    @Override
    public void onSave() {
        // Save button clicked
    }
    
    @Override
    public void onCancel() {
        // Cancel button clicked
    }
});

Documentation

Full Java reference is available at https://ultramega.github.io/android-radar-chart/.

XML Attributes

RadarView

Name	Type	Default	Description
circleColor	Color	#FFCCCCCC	The color for the circles
gravity	Gravity	center_horizontal|top	The alignment of the View within its container
labelColor	Color	#FFFFFFFF	The color for the label text
polygonColor	Color	#DD0066FF	The color for the polygon representing the data in the chart
polygonColorInteractive	Color	#DDFF66FF	The color for the polygon when the chart is in interactive mode
selectedColor	Color	#FFEFAC1D	The color for the selected item when the chart is in interactive mode

Gravity Options

Options available for the gravity XML attribute. Multiple options can be combined by separating them with the | character.

Constant	Description
top	Push object to the top of its container
bottom	Push object to the bottom of its container
left	Push object to the left of its container
right	Push object to the right of its container
center_vertical	Place object in the vertical center of its container
center_horizontal	Place object in the horizontal center of its container
center	Place the object in the center of its container in both the vertical and horizontal axis
start	Push object to the beginning of its container
end	Push object to the end of its container

RadarEditWidget

Name	Type	Default	Description
showButtonBar	Boolean	FALSE	Whether to display the Save and Cancel buttons
textColor	Color	#FFFFFFFF	The color for the text
textSize	Dimension	32sp	The size of the text

License

The source code for Android Radar Chart is released under the terms of the MIT License.