A custom circular rotating dial like picker for android.

Gradle

compile 'com.moldedbits.dialpicker:android-dial-picker:1.0'

Maven

<dependency>
  <groupId>com.moldedbits.dialpicker</groupId>
  <artifactId>android-dial-picker</artifactId>
  <version>1.0</version>
  <type>pom</type>
</dependency>

Implementation

Android Dial Picker, a circular custom view that works just like a rotating dial. DialView is highly customizable via xml or code. You can set direction(left,top,right,bottom), max/min ranges, interval values and colours. These custom attributes can be added and styled via XML as well as programatically.
As the dial rotates, the current value gets updated and is displayed on the screen.

Usage

• In XML layout:

  <com.moldedbits.dialpicker.DialView
        android:id="@+id/dial_left"
        android:layout_width="90dp"
        android:layout_height="200dp"
        android:layout_alignParentStart="true"
        android:layout_centerInParent="true"
        android:layout_marginTop="@dimen/margin_normal"
        android:padding="5dp"
        custom:centerPadding="50"
        custom:dialDirection="LEFT"
        custom:endColor="#FF8A80"
        custom:intervalValueOnLine="true"
        custom:leastCount="1"
        custom:lineInterval="2"
        custom:maxValue="24"
        custom:minValue="0"
        custom:paintArcColor="@color/smoke_red"
        custom:paintLineColor="@color/smoke_red"
        custom:paintTextColor="@color/smoke_red"
        custom:startColor="#FF8A80"
        custom:textSize="14"
        custom:tickGapAngle="12" />
  

• All customizable attributes: In attrs.xml

  <declare-styleable name="DialView">
        <attr name="lineInterval" format="integer" />
        <attr name="maxValue" format="integer" />
        <attr name="minValue" format="integer" />
        <attr name="centerPadding" format="integer" />
        <attr name="leastCount" format="integer" />
        <attr name="tickGapAngle" format="integer" />
        <attr name="textSize" format="integer" />
        <attr name="intervalValueOnLine" format="boolean" />
  
        <attr name="dialDirection" format="enum">
            <enum name="LEFT" value="1" />
            <enum name="TOP" value="2" />
            <enum name="RIGHT" value="3" />
            <enum name="BOTTOM" value="4" />
        </attr>
        <attr name="startColor" format="color"/>
        <attr name="endColor" format="color"/>
        <attr name="paintLineColor" format="color"/>
        <attr name="paintTextColor" format="color"/>
        <attr name="paintArcColor" format="color"/>
    </declare-styleable>
  

• Dial Value Change Listener

    dialViewLeft.setOnDialValueChangeListener(new DialView.OnDialValueChangeListener() {
            @Override
            public void onDialValueChanged(String value, int maxValue) {
                textViewLeft.setText(value+ "  : ");
            }
        });
  

  Please feel free to contribute by pull request, issues or feature requests.