RadarView.java 文件源码

public RadarView(Context context, @Nullable AttributeSet attrs) {
    super(context, attrs);
    init(context,attrs);


    mBgPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mBgPaint.setColor(mRadarBackGroundColor);
    mBgPaint.setStyle(Paint.Style.FILL);

    mRadarPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    mRadarPaint.setColor(mRadarCircleColor);
    mRadarPaint.setStyle(Paint.Style.STROKE);
    mRadarPaint.setStrokeWidth(2);

    mRadarGradient = new SweepGradient(0,0,mRadarStartColor,mRadarEndColor);

    mMatrix = new Matrix();
}