Android开发之Compose基础学习-Scaffold脚手架控件基本用法之侧滑菜单drawerContent

先上图

再看代码

package com.xiayiye5.composefirst.components

import android.widget.Toast
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.*
import androidx.compose.material.*
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Close
import androidx.compose.material.icons.filled.Menu
import androidx.compose.runtime.Composable
import androidx.compose.runtime.rememberCoroutineScope
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import kotlinx.coroutines.launch

/*
 * Copyright (c) 2022, [email protected] All Rights Reserved.
 * #                                                   #
 * #                       _oo0oo_                     #
 * #                      o8888888o                    #
 * #                      88" . "88                    #
 * #                      (| -_- |)                    #
 * #                      0\  =  /0                    #
 * #                    ___/`---'\___                  #
 * #                  .' \\|     |# '.                 #
 * #                 / \\|||  :  |||# \                #
 * #                / _||||| -:- |||||- \              #
 * #               |   | \\\  -  #/ |   |              #
 * #               | \_|  ''\---/''  |_/ |             #
 * #               \  .-\__  '-'  ___/-. /             #
 * #             ___'. .'  /--.--\  `. .'___           #
 * #          ."" '<  `.___\_<|>_/___.' >' "".         #
 * #         | | :  `- \`.;`\ _ /`;.`/ - ` : | |       #
 * #         \  \ `_.   \_ __\ /__ _/   .-` /  /       #
 * #     =====`-.____`.___ \_____/___.-`___.-'=====    #
 * #                       `=---='                     #
 * #     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~   #
 * #                                                   #
 * #               佛祖保佑         永无BUG              #
 * #                                                   #
 */

/**
 * @author 下一页5（轻飞扬）
 * 创建时间：2022/5/8 10:06
 * 个人小站：http://yhsh.wap.ai(已挂)
 * 最新小站：http://www.iyhsh.icoc.in
 * 联系作者：企鹅 13343401268
 * 博客地址：http://blog.csdn.net/xiayiye5
 * 项目名称：ComposeFirst
 * 文件包名：com.xiayiye5.composefirst.components
 * 文件说明：Scaffold之侧滑菜单
 */

@Composable
fun ScaffoldMenuSamples() {
    val app = LocalContext.current.applicationContext
    //设置scaffold的状态
    val scaffoldState = rememberScaffoldState()
    //设置可以开启线程的对象
    val scope = rememberCoroutineScope()
    Divider(thickness = 0.5.dp, color = Color.Red)
    Scaffold(
        scaffoldState = scaffoldState,
        topBar = {
            TopAppBar(navigationIcon = {
                Spacer(modifier = Modifier.width(10.dp))
                Icon(
                    imageVector = Icons.Default.Menu,
                    contentDescription = null,
                    modifier = Modifier.clickable {
                        //点击滑出菜单选项
                        Toast.makeText(app, "弹出菜单栏", Toast.LENGTH_SHORT).show()
                        scope.launch { //打开策划菜单的方法
                            scaffoldState.drawerState.open()
                        }
                    })
            }, title = {
                Text(text = "点击左边滑出菜单")
            }, actions = {
                Icon(
                    imageVector = Icons.Default.Close,
                    contentDescription = "删除",
                    Modifier
                        .padding(10.dp, 0.dp, 10.dp, 0.dp)
                        .clickable {
                            Toast
                                .makeText(app, "关闭菜单栏", Toast.LENGTH_SHORT)
                                .show()
                            scope.launch {
                                //关闭策划菜单的方法
//                                scaffoldState.drawerState.close()
                                //显示snackBar类似Toast
                                scaffoldState.snackbarHostState.showSnackbar(
                                    "删除",
                                    actionLabel = "完成",
                                    duration = SnackbarDuration.Short
                                )
                            }
                        }, tint = Color.White
                )
            })
        },
        modifier = Modifier.height(150.dp),
        drawerContent = {
            Text(text = "我是侧滑菜单内容")
        },
        //整个侧滑菜单背景色
        drawerBackgroundColor = Color.Blue,
        //侧滑菜单里面的内容的颜色，包括文字颜色等
        drawerContentColor = Color.Red,
//        drawerScrimColor = Color.Transparent
        //侧滑菜单未充满屏幕的颜色，一般默认是透明色，也可以自己设置其它颜色
        drawerScrimColor = Color.Green
    ) {

    }
}

@Preview
@Composable
fun ScaffoldMenuSamplesPreview() {
    ScaffoldMenuSamples()
}