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首页 / 移动开发 / Android / Android自定义View之继承TextView绘制背景

本文实例为大家分享了TextView绘制背景的方法,供大家参考,具体内容如下
效果:

这里写图片描述
实现流程:

这里写图片描述
1.初始化:对画笔进行设置

mPaintIn = new Paint();mPaintIn.setAntiAlias(true);mPaintIn.setDither(true);mPaintIn.setStyle(Paint.Style.FILL);mPaintIn.setColor(getResources().getColor(R.color.colorPrimary));mPaintOut = new Paint();mPaintOut.setAntiAlias(true);mPaintOut.setDither(true);mPaintOut.setStyle(Paint.Style.FILL); mPaintOut.setColor(getResources().getColor(R.color.colorAccent));
2.绘制外框,内框,文字
获取组件宽高
int width = getMeasureWidth();int height = getMeasureHeight();
绘制
@Overrideprotected void onDraw(Canvas canvas) {//绘制背景,在绘制文字之前绘制canvas.drawRect(new Rect(0, 0, getMeasuredWidth(), getMeasuredHeight()), mPaintIn);canvas.drawRect(new Rect(10, 10, getMeasuredWidth()-10, getMeasuredHeight()-10), mPaintOut);super.onDraw(canvas);}
以上就是本文的全部内容,希望能给大家一个参考,也希望大家多多支持脚本之家。