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MotionLayout自定義開(kāi)關(guān)按鈕實(shí)例詳解

 更新時(shí)間：2022年11月08日 10:59:26   作者：九狼  
這篇文章主要為大家介紹了MotionLayout自定義開(kāi)關(guān)按鈕實(shí)例詳解，有需要的朋友可以借鑒參考下，希望能夠有所幫助，祝大家多多進(jìn)步，早日升職加薪

MotionLayout自定義一個(gè)動(dòng)畫(huà)開(kāi)關(guān)按鈕

MotionLayout是一個(gè)非常新的類，它來(lái)自ConstraintLayout 2.0庫(kù)中，主要目的是為了幫助Android開(kāi)發(fā)人員在應(yīng)用中降低使用手勢(shì)和組件動(dòng)畫(huà)的難度

使用方法

MotionSwitch(Modifier.height(26.dp).width(86.dp), onText = "最熱", offText = "最新", onEvent = {
}, offEvent = {
})

完整代碼直接拿去用

import androidx.compose.animation.core.animateFloatAsState
import androidx.compose.animation.core.tween
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material3.Text
import androidx.compose.runtime.*
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.layout.layoutId
import androidx.compose.ui.layout.onSizeChanged
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.IntSize
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.constraintlayout.compose.ConstraintSet
import androidx.constraintlayout.compose.ExperimentalMotionApi
import androidx.constraintlayout.compose.MotionLayout
import kotlin.math.roundToInt
/**
 * @Description:
 * @Author: JIULANG
 * @Data: 2022/11/6 16:27
 */
@ExperimentalMotionApi
@Composable
 fun MotionSwitch(
    modifier:Modifier =Modifier,
    check:Boolean =false,
    onText:String = "on",
    offText:String = "off",
    onEvent :()-> Unit,
    offEvent :()-> Unit,
) {
    var animateToEnd by remember { mutableStateOf(check) }
    val progress by animateFloatAsState(
        targetValue = if (animateToEnd) 1f else 0f,
        animationSpec = tween(1000)
    )
    var buttonSwitchHight  by remember { mutableStateOf(IntSize(0, 0)) }
    Column() {
        MotionLayout(
            ConstraintSet(
                """ {
                backgroundSwitch: {
                    custom: {
                      color: "#d2d2d2"
                    }
                },
                buttonSwitch: { 
                    top: ['backgroundSwitch', 'top', 0],
                    start: ['backgroundSwitch', 'start', 0]
                },
                on: { 
                    top: ['backgroundSwitch', 'top', 0],
                    start: ['backgroundSwitch', 'start', 0],
                    bottom: ['backgroundSwitch', 'bottom', 0]
                },
                off: { 
                    top: ['backgroundSwitch', 'top', 0],
                    end: ['backgroundSwitch', 'end', 0],
                    bottom: ['backgroundSwitch', 'bottom', 0]
                }
             }"""
            ),
            ConstraintSet(
                """ {
                backgroundSwitch: {
                    custom: {
                      color: "#343434"
                    }
                },
                buttonSwitch: { 
                    top: ['backgroundSwitch', 'top', 0],
                    end: ['backgroundSwitch', 'end', 0]
                },
                on: { 
                    top: ['backgroundSwitch', 'top', 0],
                    start: ['backgroundSwitch', 'start', 0],
                    bottom: ['backgroundSwitch', 'bottom', 0]
                },
                off: { 
                    top: ['backgroundSwitch', 'top', 0],
                    end: ['backgroundSwitch', 'end', 0],
                    bottom: ['backgroundSwitch', 'bottom', 0]
                }
              }"""
            ),
            progress = progress,
            modifier =modifier
        ) {
            Box(
                modifier = modifier
                    .layoutId("backgroundSwitch")
                    .clip(RoundedCornerShape(36.dp))
                    .onSizeChanged {
                        buttonSwitchHight = it
                    }
                    .clickable(onClick = {
                        if (animateToEnd){
                            onEvent.invoke()
                        }else{
                            offEvent.invoke()
                        }
                        animateToEnd = !animateToEnd })
                    .background(motionProperties("backgroundSwitch").value.color("color"))
            )
            Box(
                modifier = Modifier
                    .height(buttonSwitchHight.height.dp)
                    .width((buttonSwitchHight.width/5).dp)
                    .layoutId("buttonSwitch")
                    .clip(RoundedCornerShape(36.dp))
                    .background(Color.Gray)
            )
            Text(
                text = onText,
                modifier = Modifier
                    .layoutId("on")
                    .width((buttonSwitchHight.width/5).dp),
                color = Color.White,
                fontSize = 12.sp,
                textAlign = TextAlign.Center
            )
            Text(
                text = offText,
                modifier = Modifier
                    .layoutId("off")
                    .width((buttonSwitchHight.width/5).dp),
                color = Color.White,
                fontSize = 12.sp,
                textAlign = TextAlign.Center
            )
        }
    }
}

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