Why Toolbar disappeared?

Question

I can't really understand, why my Toolbar disappeared, something should there be wrong. As you can see, toolbar is there, but somehow looks like transparent.

The same bug is in the app after running, but there it is totally invisible.

I'm using a custom Toolbar in my MainActivity because of Navigation Drawer:

<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity"
    tools:openDrawer="start">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar_main"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:elevation="4dp"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
    </LinearLayout>

    <include
        android:id="@+id/content_main"
        layout="@layout/content_main" />

    <com.google.android.material.navigation.NavigationView
        android:id="@+id/nav_view_main"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:itemIconTint="@color/colorAccent"
        app:itemTextColor="@color/colorPrimary"
        app:menu="@menu/drawer_menu_main" />

</androidx.drawerlayout.widget.DrawerLayout>

And my MainActivity class looks like this:

    private lateinit var drawerLayout: DrawerLayout

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val toolbar: Toolbar = findViewById(R.id.toolbar_main)
        setSupportActionBar(toolbar)

        drawerLayout = findViewById(R.id.drawer_layout_main)
        val navView: NavigationView = findViewById(R.id.nav_view_main)
        val toggle = ActionBarDrawerToggle(
            this,
            drawerLayout,
            toolbar,
            R.string.navigation_drawer_open,
            R.string.navigation_drawer_close
        )
        drawerLayout.addDrawerListener(toggle)
        toggle.syncState()

        navView.setNavigationItemSelectedListener(this)
    }

Also, I use a custom style with NoActionBar defined as:

    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:statusBarColor">@android:color/transparent</item>
    </style>

and of course applied in Manifest for this particular activity:

    <activity
        android:name=".MainActivity"
        android:theme="@style/AppTheme.NoActionBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

The thing is firstly, I want to use a non-transparent Toolbar and secondly, I worked before, but during programming I noticed that I doesn't work/appear any more. How can I fix this issue?

@MikeM. You are awesome, man! I worked after moving as you proposed. Thank you very much! — Mark Delphi, Nov 24 '19 at 12:38

score 0 · Answer 1 · answered Nov 24 '19 at 12:42

The solution was found. Please refer to MikeM.'s comment above.

<LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <androidx.appcompat.widget.Toolbar
            android:id="@+id/toolbar_main"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            android:elevation="4dp"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

        <include
            android:id="@+id/content_main"
            layout="@layout/content_main" />
    </LinearLayout>

Why Toolbar disappeared?

1 Answers1