toolbar

xml

        <com.google.android.material.appbar.MaterialToolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:navigationIcon="?attr/homeAsUpIndicator"
            app:title="툴바"
            app:titleCentered="true" />

activity

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        initToolbar()
    }

    private fun initToolbar() {
        setSupportActionBar(binding.toolbar)
    }

    override fun onSupportNavigateUp(): Boolean {
        onBackPressed()
        return true
    }

 

 

actionmenu 안쓰면 onOptionsItemSelected 구현 필요없이 간단하게 가능