使用带有喷气背包导航组件的导航抽屉时如何更改工具栏图标(汉堡包图标) [英] how to change toolbar icon (hamburger icon) when using navigation drawer with jetpack navigation component

问题描述

我正在使用 jetpack 导航组件来构建导航抽屉，我想更改工具栏的汉堡图标，我尝试了很多解决方案，例如 bellow 但它们不起作用

I'm using jetpack navigation component to build a navigation drawer, I want to change hamburger icon of the toolbar, I tried many solutions like bellow but they don't work

app:navigationIcon="@drawable/menu"

还有

getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setHomeAsUpIndicator(R.drawable.menu);

这是我的代码

 override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    setSupportActionBar(toolbar)
    navController=findNavController(R.id.nav_host_fragment)
    appBarConfiguration=AppBarConfiguration(setOf(R.id.nav_acceuil,R.id.nav_notifications,R.id.nav_gerer,R.id.nav_deconnexion),drawer_layout)
    setupActionBarWithNavController(navController,appBarConfiguration)
    nav_view.setupWithNavController(navController);
}

推荐答案

您可以使用addOnDestinationChangedListener:

You can use the addOnDestinationChangedListener:

    navController.addOnDestinationChangedListener { controller, destination, arguments ->
        if (destination.id == R.id.nav_xxxx){
            supportActionBar?.setHomeAsUpIndicator(R.drawable.xxxx)
        }
    }

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