Android線性羅盤視圖：CompassView

該庫提供了一個完全可定制的線性羅盤視圖。

用法

You can declare a CompassView just like that:

<com.redinput.compassview.CompassView
    android:id="@+id/compass"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:backgroundColor="#000000"
    app:showMarker="true"
    app:markerColor="#FF0000"
    app:lineColor="#FFFFFF"
    app:textColor="#FFFFFF"
    app:textSize="15sp"
    app:degrees="0"
    app:rangeDegrees="180.0" />

Property values shown above are the defaults of the CompassView and it can be omitted for brevity.

Also, you can set all that properties with Java.

CompassView compass = (CompassView) findViewById(R.id.compass);

compass.setDegrees(57);
compass.setBackgroundColor(Color.YELLOW);
compass.setLineColor(Color.RED);
compass.setMarkerColor(Color.BLACK);
compass.setTextColor(Color.WHITE);
compass.setShowMarker(false);
compass.setTextSize(37);
compass.setRangeDegrees(270);

Another feature is that you can move the 'CompassView' dragging the view horizontally and even you can attach it a 'OnCompassDragListener' to observe the changes on the degrees value.

compass.setOnCompassDragListener(new CompassView.OnCompassDragListener() {
    @Override
    public void onCompassDragListener(float degrees) {
        // Do what you want with the degrees
    }
});

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