比较简单 但是作为kotlin练手

import android.content.Context

import android.graphics.*

import android.util.AttributeSet

import android.view.View

import com.loan.market.R

import com.loan.market.tools.ScreenTools

class ProgressBeautifulView @JvmOverloads constructor(context: Context, attributeSet: AttributeSet? = null, defStyleAttr: Int = 0) :

View(context, attributeSet, defStyleAttr) {

private var rectF: RectF? = null

private var rectFInner: RectF? = null

private var paint: Paint = Paint(Paint.ANTI_ALIAS_FLAG)

private var paintInner: Paint = Paint(Paint.ANTI_ALIAS_FLAG)

private var paintText: Paint = Paint(Paint.ANTI_ALIAS_FLAG)

private var widthSize: Int = 0

private var heightSize: Int = 0

private var strokeWid: Float = ScreenTools.dp2px(1f).toFloat()

private var innerLength: Float = 0f

public var nowPercent: Float = 0.1f

public var nowNumber: String = "10%"

init {

paint.strokeCap = Paint.Cap.ROUND

paint.isDither = true

paint.strokeWidth = strokeWid

paint.style = Paint.Style.STROKE

paint.color = context.resources.getColor(R.color.popup_outline)

paintInner.strokeCap = Paint.Cap.ROUND

paintInner.isDither = true

paintInner.strokeWidth = strokeWid

paintInner.style = Paint.Style.FILL

paintInner.color = context.resources.getColor(R.color.popup_inner)

paintText.strokeCap = Paint.Cap.ROUND

paintText.isDither = true

paintText.textSize = ScreenTools.sp2px(14f).toFloat()

paintText.style = Paint.Style.FILL

paintText.textAlign = Paint.Align.CENTER

paintText.color = context.resources.getColor(R.color.main_loan_list)

}

override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {

super.onSizeChanged(w, h, oldw, oldh)

widthSize = w

heightSize = h

rectF = RectF(0f + strokeWid / 2f, 0f + strokeWid / 2f, w.toFloat() - strokeWid / 2f, h.toFloat() - strokeWid / 2f)

innerLength = widthSize - ScreenTools.dp2px(6f).toFloat() * 2

}

override fun onDraw(canvas: Canvas) {

super.onDraw(canvas)

rectFInner = RectF(ScreenTools.dp2px(6f).toFloat(), ScreenTools.dp2px(8f).toFloat(), ScreenTools.dp2px(6f).toFloat() + innerLength * nowPercent, heightSize - ScreenTools.dp2px(8f).toFloat())

canvas.drawRoundRect(rectFInner, ScreenTools.dp2px(10f).toFloat(), ScreenTools.dp2px(10f).toFloat(), paintInner)

canvas.drawRoundRect(rectF, ScreenTools.dp2px(20f).toFloat(), ScreenTools.dp2px(20f).toFloat(), paint)

var fm: Paint.FontMetrics = paintText.getFontMetrics();

canvas.drawText(nowNumber.toString(), widthSize / 2f, heightSize / 2f - (fm.descent - (-fm.ascent + fm.descent) / 2), paintText)

}

}