Android自定义控件实现球赛比分条效果
本文实例为大家分享了Android实现球赛比分条效果的具体代码,供大家参考,具体内容如下
效果图如下所示:
该控件需要输入两个参数,左边的得分数和右边的的分数
然后根据两边的得分的比例绘制中间的比分条
首先将控件的宽度平均分配为10分,第一份和最后一份分别绘制左边的比分数字和右边的比分数字
中间的8分宽度绘制比分条
根据左右两个比分所占的比例,绘制两个两条首位相连的线段即可
完整代码如下:
public class CustomScoreBar extends View { private Context context; private TypedValue typedValue; private static final int DEGREE =10; private int mColorLeft, mColorRight; private int mScoreLeft, mScoreRight; //各种画笔 private Paint paintBar =new Paint(); private Paint paintText=new Paint(); public CustomScoreBar(Context context) { super(context); this.context=context; init(); } public CustomScoreBar(Context context, AttributeSet attrs) { super(context, attrs); this.context=context; init(); } public CustomScoreBar(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); this.context=context; init(); } private void init() { //初始化数据,默认属性 mColorLeft = Color.rgb(95, 112, 72); mColorRight = Color.rgb(69, 91, 136); mScoreLeft =5; mScoreRight =8; typedValue=new TypedValue(); context.getTheme().resolveAttribute(R.attr.maintextclor,typedValue,true); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); float width=getWidth(); float height=getHeight(); //文字画笔设置 paintText.reset(); paintText.setAntiAlias(true); //文字的大小取控件宽度的十分之一和高度的二分之一的最小值 paintText.setTextSize(Math.min(width / DEGREE, height) / 2); paintText.setColor(getResources().getColor(typedValue.resourceId)); /*Paint.Align.CENTER:The text is drawn centered horizontally on the x,y origin*/ paintText.setTextAlign(Paint.Align.CENTER); //绘制中间的横线的画笔 paintBar.reset(); paintBar.setAntiAlias(true); paintBar.setStyle(Paint.Style.STROKE); //画笔的高度为控件高度的十分之一 paintBar.setStrokeWidth(height/10); //测量字体 Paint.FontMetrics fontMetrics = paintText.getFontMetrics(); float textBaseLineOffset = (fontMetrics.bottom - fontMetrics.top) / 2 - fontMetrics.bottom; //绘制左边的比分文字 //把控件宽度分为10份,第一份和第十份分别绘制左边和右边的文字 //中间的8份宽度绘制比分条 canvas.drawText("" + mScoreLeft, width / DEGREE / 2, height / 2 + textBaseLineOffset, paintText); paintBar.setColor(mColorLeft); // drawLine(float startX, float startY, float stopX, float stopY,Paint paint)*/ //按照比例绘制左边比分对应长度的比分条 canvas.drawLine(width / DEGREE, height / 2, width / DEGREE + width * (DEGREE - 2) / DEGREE * mScoreLeft / (mScoreLeft + mScoreRight), height / 2, paintBar); //测量右边的比分文字 fontMetrics = paintText.getFontMetrics(); textBaseLineOffset = (fontMetrics.bottom - fontMetrics.top) / 2 - fontMetrics.bottom; //在控件宽度的最后十分之一绘制右边的比分数字 canvas.drawText("" + mScoreRight, width-width / DEGREE / 2, height / 2 + textBaseLineOffset,paintText); paintBar.setColor(mColorRight); //绘制右边的比分对应长度的比分条 canvas.drawLine(width/ DEGREE +width*(DEGREE -2)/ DEGREE * mScoreLeft /(mScoreLeft + mScoreRight),height/2,width*(DEGREE -1)/ DEGREE,height/2, paintBar); } public void setScores(int score1, int score2) { this.mScoreLeft =score1; this.mScoreRight =score2; invalidate(); } }
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