看看效果：

非常简单：代码直接贴在下面，有需要的直接带走

/*** 带有自定义字体TextView。*/
class EditAvatarUploadView : AppCompatTextView {lateinit var paint:Paintconstructor(context: Context) : this(context, null){iniPaint()}constructor(context: Context, attrs: AttributeSet?) : this(context, attrs, 0){iniPaint()}constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {iniPaint()}override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {super.onLayout(changed, left, top, right, bottom)iniPaint()}private fun iniPaint() {paint = Paint()paint.setAntiAlias(true)paint.setColor(Color.LTGRAY)paint.setStyle(Paint.Style.STROKE)paint.textSize= 20F}override fun onDraw(canvas: Canvas?) {super.onDraw(canvas)//得到屏幕宽高var width = widthvar radius = width - 300 / 2var height = heightcanvas!!.drawCircle((width / 2).toFloat(), (height / 2).toFloat(), radius.toFloat(), paint)//绘制一条直线(两点确定一线)/* paint.setColor(Color.RED)canvas.drawLine(5F, (height/2+50).toFloat(), width.toFloat()-5, (height/2+50).toFloat(), paint)*/drawMask(canvas)drawCam(canvas)drawText(canvas)}fun drawMask(canvas: Canvas) {val bitmap =BitmapFactory.decodeResource(context.getResources(), R.mipmap.login_upload_half_mask)val dst = Rect(6, 60, 293, 160)/***********绘制圆弧* 矩形的宽度width=C(right)-A(left)，高度height=D(bottom)-B(top)*/canvas.translate(0F, (width/2-10).toFloat())val rectf_head = RectF(1f, 0f, 291f, 207f) //确定外切矩形范围rectf_head.offset(5f, 90f) //使rectf_head所确定的矩形向右偏移100像素，向下偏移20像素//开始角度（以时钟3点的方向为0°，逆时针为正方向）//（以时钟3点的方向为0°，逆时针为正方向）//canvas.drawArc(rectf_head, 0F, 180F, false, paint) //绘制圆弧，不含圆心canvas.drawBitmap(bitmap, null, dst, null);}fun drawCam(canvas: Canvas) {val bitmap =BitmapFactory.decodeResource(context.getResources(), R.mipmap.login_edit_camera_icon)val dst = Rect(10, 60, 50, 100)dst.offset(70, 20)canvas.drawBitmap(bitmap, null, dst, null);}fun drawText(canvas: Canvas) {val text = "点击上传"paint.setColor(Color.WHITE)//x表示文本原点的x坐标；y表示文本基线的y坐标。canvas.drawText(text, 130F, 110F, paint)}}

 

代码地址