自定义View触摸监听

[blackberry]代码库
//自定义接口
public interface OnCircleClickListener {
    public void smallCircleListener();
    public void bigCircleListener();
    public void rectClickListener();
}
 
public class CustomView extends View {
    private Paint paint=new Paint();
    private int rectColor;
    private int sCircleColor;
    private int bCircleColor;
    private float downX;
    private float downY;
    private OnCircleClickListener onCircleClickListener;
 
    public CustomView(Context context) {
        super(context);
    }
 
    public CustomView(Context context, AttributeSet attrs) {
        super(context, attrs);
        TypedArray typedArray=context.obtainStyledAttributes(attrs,R.styleable.CustomColor);
        rectColor=typedArray.getColor(R.styleable.CustomColor_rectColor, Color.parseColor("#000000"));
        sCircleColor=typedArray.getColor(R.styleable.CustomColor_sCircleColor,Color.parseColor("#0000ff"));
        bCircleColor=typedArray.getColor(R.styleable.CustomColor_bCircleColor,Color.parseColor("#ffffff"));
 
        typedArray.recycle();
    }
 
    public CustomView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }
 
    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        paint.setAntiAlias(true);
        paint.setColor(rectColor);
        canvas.drawRect(getWidth()/2-120,getHeight()/2-120,getWidth()/2+120,getHeight()/2+120,paint);
        paint.setColor(bCircleColor);
        canvas.drawCircle(getWidth()/2,getHeight()/2,100,paint);
        paint.setColor(sCircleColor);
        canvas.drawCircle(getWidth()/2,getHeight()/2,50,paint);
 
    }
 
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch(event.getAction()){
            case MotionEvent.ACTION_DOWN:
                downX = event.getX();
                downY = event.getY();
                break;
            case MotionEvent.ACTION_UP:
                float upX=event.getX();
                float upY=event.getY();
                //判断是不是点击的
                if(upX==downX&&upY==downY){
                    int xx=positionS(upX,upY);
                    if(xx==1){
                        if(onCircleClickListener!=null){
                            onCircleClickListener.smallCircleListener();
                        }
                    }else if(xx==2){
                        if(onCircleClickListener!=null){
                            onCircleClickListener.bigCircleListener();
                        }
                    }else if(xx==3){
                        if(onCircleClickListener!=null){
                            onCircleClickListener.rectClickListener();
                        }
                    }
                }
                break;
        }
        return true;
    }
 
    public int positionS(float x, float y){
        float v=(x-getWidth()/2)*(x-getWidth()/2)+(y-getHeight()/2)*(y-getHeight()/2);
        float vv= (float) Math.sqrt(v);
        if(vv<50){
            return 1;
        }else if(vv>50&&vv<100){
            return 2;
        }else if(vv>100){
            return 3;
        }
        return -1;
    }
 
    public void setOnRectClickListener(OnCircleClickListener onCircleClickListener){
        this.onCircleClickListener=onCircleClickListener;
    }
}
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