Android(安卓)SpannableString 自定义圆角背景

效果图：

自定义圆角背景

package com.app.mobivans;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.RectF;import android.text.style.ReplacementSpan;/** * @author: 潇潇 * @create on:  2019/3/5 * @describe:DOTO */public class RoundBackgroundColorSpan  extends ReplacementSpan {    private int bgColor;    private int textColor;    public RoundBackgroundColorSpan(int bgColor, int textColor) {        super();        this.bgColor = bgColor;        this.textColor = textColor;    }    @Override    public int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsInt fm) {        //这个地方返回的与其余字体的间距        return ((int)paint.measureText(text, start, end)+60);    }    @Override    public void draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, Paint paint) {        int color1 = paint.getColor();        paint.setColor(this.bgColor);        //rx  ry 控制背景圆角的大小        canvas.drawRoundRect(new RectF(x, top+1, x + ((int) paint.measureText(text, start, end)+40), bottom-1), 20, 20, paint);        paint.setColor(this.textColor);        canvas.drawText(text, start, end, x+20, y, paint);        paint.setColor(color1);    }}

在activity的应用

String content = "承接公路隧道工程，可承接的工作级别3级使用全断面开挖法，10人团队";        SpannableString spannableString=new SpannableString("工作"+content);        spannableString.setSpan(new RoundBackgroundColorSpan(Color.parseColor("#FF3A36"),Color.parseColor("#FFFFFF")), 0, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);        text.setText(spannableString);

如有不对之处，望各路大神指点，小女子在此谢过O(∩_∩)O

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