直播商城系统源码，自定义View实现方向控制控件，可拖拽中间圆
public class DirectionView extends View implements View.OnTouchListener {
private int width;
private int height;
private int halfWidth;
private int halfHeight;
private int smallCircleRadius;
private int sideWidth = 4;//外层边框宽度
private Paint paintCircleSide;
private Paint paintCircleBg;
private Paint paintCircleCenter;
private Paint paintDirection;
private int pressDirectionH = 0;
private int pressDirectionV = 0;
private int smallCircleCenterX = -1;
private int smallCircleCenterY = -1;
private int halfTouchWidth = 65;
private BlurMaskFilter blurMaskFilter;
private Path path = new Path();
public DirectionView(Context context) {
super(context);
init(context);
}
public DirectionView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
init(context);
}
public DirectionView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
init(context);
}
private void init(Context context)
{
paintCircleSide = createPaintWithCommon(sideWidth, "#66ffffff", Paint.Style.STROKE);
paintCircleBg = createPaintWithCommon(2, "#662a3845", Paint.Style.FILL);
paintCircleCenter = createPaintWithCommon(2, "#ffffff", Paint.Style.FILL);
paintDirection = createPaintWithCommon(6, "#ffffff", Paint.Style.STROKE);
blurMaskFilter = new BlurMaskFilter(20, BlurMaskFilter.Blur.SOLID);
this.setOnTouchListener(this);
}
private Paint createPaintWithCommon(int strokeWidth, String color, Paint.Style style)
{
Paint paint = new Paint();
paint.setStrokeWidth(strokeWidth);
paint.setColor(Color.parseColor(color));
paint.setStyle(style);
paint.setAntiAlias(true);
paint.setStrokeJoin(Paint.Join.ROUND);
paint.setStrokeCap(Paint.Cap.ROUND);
return paint;
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawCircle(halfWidth, halfHeight, halfWidth - sideWidth / 2, paintCircleBg);
canvas.drawCircle(halfWidth, halfHeight, halfWidth - sideWidth, paintCircleSide);
if(this.smallCircleCenterY != -1)
{
// paintCircleCenter.setMaskFilter(blurMaskFilter);
canvas.drawCircle(smallCircleCenterX, smallCircleCenterY, smallCircleRadius, paintCircleCenter);
}
else
{
// paintCircleCenter.setMaskFilter(null);
canvas.drawCircle(halfWidth, halfHeight, smallCircleRadius, paintCircleCenter);
}
int offsetSize = 25;
int offsetPosition = 20;
//上
if(pressDirectionV == PtzAction.Direction.Up)
paintDirection.setColor(Color.parseColor("#0000ff"));
else
paintDirection.setColor(Color.parseColor("#ffffff"));
path.reset();
path.moveTo(halfWidth - offsetSize, halfHeight / 2 - offsetPosition);
path.lineTo(halfWidth, halfHeight / 2 - offsetSize - offsetPosition);
path.lineTo(halfWidth + offsetSize, halfHeight / 2 - offsetPosition);
canvas.drawPath(path, paintDirection);
//右
if(pressDirectionH == PtzAction.Direction.Right)
paintDirection.setColor(Color.parseColor("#0000ff"));
else
paintDirection.setColor(Color.parseColor("#ffffff"));
path.reset();
path.moveTo(halfWidth + halfWidth / 2 + offsetPosition, halfHeight - offsetSize);
path.lineTo(halfWidth + halfWidth / 2 + offsetPosition + offsetSize, halfHeight);
path.lineTo(halfWidth + halfWidth / 2 + offsetPosition, halfHeight + offsetSize);
canvas.drawPath(path, paintDirection);
//下
if(pressDirectionV == PtzAction.Direction.Down)
paintDirection.setColor(Color.parseColor("#0000ff"));
else
paintDirection.setColor(Color.parseColor("#ffffff"));
path.reset();
path.moveTo(halfWidth - offsetSize, halfHeight + halfHeight / 2 + offsetPosition);
path.lineTo(halfWidth, halfHeight + halfHeight / 2 + offsetSize + offsetPosition);
path.lineTo(halfWidth + offsetSize, halfHeight + halfHeight / 2 + offsetPosition);
canvas.drawPath(path, paintDirection);
//左
if(pressDirectionH == PtzAction.Direction.Left)
paintDirection.setColor(Color.parseColor("#0000ff"));
else
paintDirection.setColor(Color.parseColor("#ffffff"));
path.reset();
path.moveTo(halfWidth / 2 - offsetPosition, halfHeight - offsetSize);
path.lineTo(halfWidth / 2 - offsetPosition - offsetSize, halfHeight);
path.lineTo(halfWidth / 2 - offsetPosition, halfHeight + offsetSize);
canvas.drawPath(path, paintDirection);
}
以上就是直播商城系统源码，自定义View实现方向控制控件，可拖拽中间圆， 更多内容欢迎关注之后的文章