Android立体图形的拆解/恢复_自定义view

最新推荐文章于 2021-05-26 04:08:04 发布

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最新推荐文章于 2021-05-26 04:08:04 发布

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CC 4.0 BY-SA版权

分类专栏：自定义view 文章标签： android java android studio kotlin

本文链接：https://blog.youkuaiyun.com/Double1010/article/details/109151090

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本文介绍了一个自定义View的实现案例，通过绘制不同颜色的面并使用计时器进行位移，实现了立方体的拆解动画效果。每个面通过Path绘制，并使用Matrix进行坐标变换。

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直接上效果图(下图gif所示)了,自定义View的demo写的是正方体相对简介,手机屏幕不大,右侧和左侧的都超出屏幕了,所以没有截到,当时看了一家公司的抖音,突发奇想写的一个图形拆解/恢复动画,如果该demo对你有帮助的话,给我点个赞吧
在这里插入图片描述

package com.lx.views

import android.content.Context
import android.graphics.*
import android.os.CountDownTimer
import android.util.AttributeSet
import android.view.View

class liuxinCubeSplit : View, View.OnClickListener {
	//6个不同颜色的笔
    private var paint1 = Paint()
    private var paint2 = Paint()
    private var paint3 = Paint()
    private var paint4 = Paint()
    private var paint5 = Paint()
    private var paint6 = Paint()
       //图形的Path
    private var before = Path()
    private var top = Path()
    private var left = Path()
    private var right = Path()
    private var bottom = Path()
    private var after = Path()
    //矩阵
    var mMatrix = Matrix()
    
    private fun beforePath() {
        before.reset()
        before.moveTo(point_before[0], point_before[1])
        before.lineTo(point_before[2], point_before[3])
        before.lineTo(point_before[4], point_before[5])
        before.lineTo(point_before[6], point_before[7])
        before.lineTo(point_before[0], point_before[1])
        before.close()
        paint1.setColor(Color.YELLOW)
    }

    private fun topPath() {
        top.reset()
        top.moveTo(point_top[0], point_top[1])
        top.lineTo(toptop[0], toptop[1])
        top.lineTo(toptop[2], toptop[3])
        top.lineTo(point_top[6], point_top[7])
        top.lineTo(point_top[0], point_top[1])
        top.close()
        paint2.setColor(Color.BLACK)
    }

    private fun leftPath() {
        left.reset()
        left.moveTo(point_left[0], point_left[1])
        left.lineTo(leftleft[0], leftleft[1])
        left.lineTo(leftleft[2], leftleft[3])
        left.lineTo(point_left[6], point_left[7])
        left.lineTo(point_left[0], point_left[1])
        left.close()
        paint3.setColor(Color.BLUE)
    }

    fun rightPath() {
        right.reset()
        right.moveTo(point_right[0], point_right[1])
        right.lineTo(rightleft[0], rightleft[1])
        right.lineTo(rightleft[2], rightleft[3])
        right.lineTo(point_right[6], point_right[7])
        right.lineTo(point_right[0], point_right[1])
        right.close()
        paint4.setColor(Color.RED)
    }
    fun bottomPath(){
        bottom.reset()
        bottom.moveTo(point_bottom[0], point_bottom[1])
        bottom.lineTo(bottomtop[0], bottomtop[1])
        bottom.lineTo(bottomtop[2], bottomtop[3])
        bottom.lineTo(point_bottom[6], point_bottom[7])
        bottom.lineTo(point_bottom[0], point_bottom[1])
        bottom.close()
        paint5.setColor(Color.GRAY);
    }
    fun afterPath(){
        after.reset()
        after.moveTo(bottomtop[0], bottomtop[1])
        after.lineTo(aftertopleft[0], aftertopleft[1])
        after.lineTo(aftertopright[0], aftertopright[1])
        after.lineTo(bottomtop[2], bottomtop[3])
        after.lineTo(bottomtop[0], bottomtop[1])
        after.close()
        paint6.setColor(Color.CYAN)
    }
    fun reMake() {
        setOnClickListener(this)
        beforePath()
        topPath()
        leftPath()
        rightPath()
        bottomPath()
        afterPath()

    }


    private var point_before = floatArrayOf(
            300f, 300f,
            300f, 700f,
            700f, 700f,
            700f, 300f
    )

    private var point_top = floatArrayOf(
            300f, 300f,
            500f, 100f,
            900f, 100f,
            700f, 300f
    )
    //顶部的顶2点
    var toptop = floatArrayOf(500f, 100f,
            900f, 100f
    )
    //左侧的左2点
    var leftleft = floatArrayOf(900f, 100f,
            900f, 500f
    )
    //右侧的左2点
    var rightleft = floatArrayOf(500f, 100f,
            500f, 500f
    )
    //底部的顶2点
    var bottomtop = floatArrayOf(500f, 500f,
            900f, 500f
    )
    var afterbottom = floatArrayOf( 500f, 500f,
            900f, 500f
    )
    //后侧的左上点
    var aftertopleft = floatArrayOf( 500f, 100f
    )
    //后侧的右上点
    var aftertopright = floatArrayOf(
            900f, 100f
    )
    private var point_left = floatArrayOf(
            700f, 300f,
            900f, 100f,
            900f, 500f,
            700f, 700f

    )
    private var point_right = floatArrayOf(
            300f,300f,
            500f,100f,
            500f,500f,
            300f,700f
    )
    private var point_bottom = floatArrayOf(
            300f, 700f,
            500f, 500f,
            900f, 500f,
            700f, 700f
    )
    private var point_after = floatArrayOf(
            500f, 100f,
            500f, 500f,
            900f, 500f,
            900f, 100f
    )
    constructor(context: Context?) : super(context) {
        reMake()
    }

    constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs) {
        reMake()
    }

    constructor(context: Context?, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {
        reMake()
    }

    override fun onDraw(canvas: Canvas) {
        super.onDraw(canvas)
        canvas.drawPath(right, paint1)
        canvas.drawPath(after, paint3)
        canvas.drawPath(bottom, paint2)
        canvas.drawPath(top, paint4)
        canvas.drawPath(left, paint5)
        canvas.drawPath(before, paint6)


    }

    var timer: CountDownTimer = object : CountDownTimer(2000, 100) {
        override fun onTick(millisUntilFinished: Long) {
            mMatrix.reset()
            mMatrix.setTranslate(-10f, -10f);
            mMatrix.mapPoints(toptop)
            reMake()
//            invalidate()
        }

        override fun onFinish() {
            invalidate()
            cancel()
        }
    }
    var timer2: CountDownTimer = object : CountDownTimer(2000, 100) {
        override fun onTick(millisUntilFinished: Long) {
            mMatrix.reset()
            mMatrix.setTranslate(10f, 10f);
            mMatrix.mapPoints(leftleft)
            reMake()
//            invalidate()
        }

        override fun onFinish() {
            invalidate()
            cancel()

        }
    }
    var timer3: CountDownTimer = object : CountDownTimer(2000, 100) {
        override fun onTick(millisUntilFinished: Long) {
            mMatrix.reset()
            mMatrix.setTranslate(-35f, 10f);
            mMatrix.mapPoints(rightleft)
            reMake()
            invalidate()
        }

        override fun onFinish() {
            invalidate()
            cancel()
        }
    }
    var timer4: CountDownTimer = object : CountDownTimer(2000, 100) {
        override fun onTick(millisUntilFinished: Long) {
            mMatrix.reset()
            mMatrix.setTranslate(-10f, 30f);
            mMatrix.mapPoints(bottomtop)
            mMatrix.reset()
            mMatrix.setTranslate(-10f, 30f);
            mMatrix.mapPoints(aftertopright);
            mMatrix.mapPoints(aftertopleft);
            reMake()

        }

        override fun onFinish() {
            invalidate()
            cancel()
            timer5.start()
        }
    }
    var timer5: CountDownTimer = object : CountDownTimer(2000, 100) {
        override fun onTick(millisUntilFinished: Long) {
            mMatrix.reset()
            mMatrix.setRotate(9f,bottomtop[2],bottomtop[3]);
            mMatrix.mapPoints(aftertopright)
            mMatrix.reset()
            mMatrix.setRotate(9f,bottomtop[0],bottomtop[1]);
            mMatrix.mapPoints(aftertopleft)
            invalidate()

            reMake()

        }

        override fun onFinish() {
            invalidate()
            cancel()
        }
    }

    override fun onClick(v: View?) {
        timer.start()
        timer2.start()
        timer3.start()
        timer4.start()
        //只做了一次点击事件,点击后还能继续点击(因为懒,就没写恢复事件了,恢复事件就是反着来,你懂我意思吧?)
    }
}

后续待更新