Develop Reference

fitSystemWindows with windowTranlucentStatus and windowTranslucentNavigation makes Toolbar too tall

I'm trying to make my app bleed under the status bar and the navigation bar. I got the layouts to work using fitSystemWindows = true with just the status bar translucent but when I make the navigation bar as well, the toolbar appears to react as if it needs to fill under the status bar and the notification bar.
The toolbar appears to function normally when in landscape for some reason.
This double "translucent" bar effect also makes the NestedScrollView extends beyond the bottom of the page. I am also not sure how to make the FAB fit.
On another note, I originally wrote the layout with a CoordinatorLayout. This added the extra problem that the NestedScrollView then scrolls up to the bottom of where the toolbar should be, not where it is. I think, however, that the NestedScrollView respected the bottom screen boundary properly with CoordinatorLayout.
Here's the xml for the layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.constraint.ConstraintLayout
android:id="#+id/constraint"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.NestedScrollView
android:id="#+id/nested_scroll_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#id/toolbar">
<LinearLayout
android:id="#+id/parent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#00000000"
android:clipToPadding="false"
android:orientation="vertical"
android:paddingBottom="74dp"/>
</android.support.v4.widget.NestedScrollView>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
android:background="#color/nav_color_1_bright"
android:elevation="4dp"
android:fitsSystemWindows="true"
app:navigationContentDescription="#string/open_nav_menu"
app:navigationIcon="#drawable/ic_dehaze_white_24dp"/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
android:layout_margin="16dp"
android:clipToPadding="false"
android:fitsSystemWindows="true"
android:onClick="createNew"
android:src="#drawable/ic_add_black_24dp"
app:backgroundTint="#color/darkAccent"
app:fabSize="normal" />
</android.support.constraint.ConstraintLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header"
app:itemBackground="#drawable/nav_item">
<ListView
android:id="#+id/drawer_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="#null"
android:dividerHeight="0dp"
android:fitsSystemWindows="true" />
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
I apply the following 'Light Theme' to the Activity programmatically.
<style name="AppTheme" parent="Theme.AppCompat.DayNight.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:windowTranslucentStatus">true</item>
<item name ="android:windowTranslucentNavigation">true</item>
</style>
<style name="LightTheme" parent="AppTheme">
<item name="android:colorPrimary">#color/lightPrimary</item>
<item name="android:colorPrimaryDark">#color/lightPrimaryDark</item>
<item name="android:colorAccent">#color/lightAccent</item>
<item name="android:navigationBarColor">#color/lightPrimaryDark</item>
<item name="actionOverflowButtonStyle">#style/OverflowMenuButtonStyleDark</item>
</style>
Here's a preview of the layout: (bigger version here)

toolbar background doesn't adjust and title is not shown - android

I'm trying to create a toolbar that uses a background I made in a png file.
Now, when I use the background in the xml, the layout editor in the android studio shows exactly the expected result. The problem comes when I run the app in the virtual device. The background doesn't adjust to the toolbar and as a result only a part of it gets shown.
Moreover, the title and the items are acting strange. The title is not shown at all and the only item that is displayed in the toolbar suddenly jumps to the left.
XML Code of the Toolbar:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/app_bar_styled"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipToPadding="false"
android:elevation="15dp">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_styled"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="15dp"
android:theme="#style/AppTheme.AppBarOverlay.Styled">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/action_bar_background"/>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
XML Code for the style of the toolbar:
<style name="AppTheme.AppBarOverlay.Styled" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
<item name="android:background">#drawable/action_bar_background</item>
<item name="android:titleTextStyle">#style/ToolBarTitleStyle</item>
</style>
<style name="ToolBarTitleStyle" parent="Base.TextAppearance.AppCompat">
<item name="android:textColor">#android:color/white</item>
<item name="android:textStyle">bold</item>
<item name="android:textSize">16dp</item>
</style>
And this is the MainActivity code which concerns the toolbar:
toolbar = (Toolbar) findViewById(R.id.toolbar_styled);
toolbar.setTitle(R.string.app_name);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowTitleEnabled(true);
Here is the images of the layout editor preview and the virtual device:
Layout Editor : https://i.gyazo.com/2b01f5ef9c87ecb35a605aa150aa6ad5.png
Virtual Device: https://i.gyazo.com/5bbd9bf5a2df1727278ba9e78efd622b.png

You need to nest it like this:
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/cor_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="256dp">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingToolbarLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_styled"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:elevation="15dp"
android:theme="#style/AppTheme.AppBarOverlay.Styled">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/action_bar_background"/>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
then set them up like this:
toolbar= (Toolbar) findViewById(R.id.toolbar);
collapse=(CollapsingToolbarLayout) findViewById(R.id.collapseToolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
collapse.setTitle("Title");
collapse.setCollapsedTitleTextColor(Color.parseColor("#FFFFFF"));
collapse.setExpandedTitleColor(Color.parseColor("#FFFFFF"));
collapse.setStatusBarScrimColor(Color.parseColor("#FFFFFF"));

1) create one tool_bar.xml file in your res folder and paste the following code.
2) Include this tool_bar.xml file when ever you required.
3) Instantiate tool_bar object in .java file and do further process.
<android.support.v7.widget.Toolbar
android:id="#+id/tool_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="4dp"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:src="#drawable/action_bar_background"/>
</android.support.v7.widget.Toolbar>
<include id="#+id/tool_bar"
layout="#layout/tool_bar"/>
Toolbar toolbar = (Toolbar)findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);

SearchView enlarges on focus

The problem i'm facing is, that when the SearchView gets the focus, the parent ActionBar enlarges nearly to the top of the keyboard (like in the screenshot below). The effect only occures if both, the android:fitsSystemWindow attribute of the Toolbar and the android:windowTranslucentStatus style property are set to true. If one of them is false, the problem doesn't exist anymore.
What am i doin wrong? Did i miss any configuration?
I have the following simple layout in my activity:
<android.support.v4.widget.DrawerLayout
android:id="#+id/drawer_layout"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:focusableInTouchMode="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimaryDark"
android:fitsSystemWindows="true"
android:height="?attr/actionBarSize"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<ScrollView
android:id="#+id/search_result_scroll_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true"/>
</LinearLayout>
</android.support.v4.widget.DrawerLayout>
My styles.xml looks like this:
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowTranslucentStatus">true</item>
</style>
</resources>
The menu_main.xml looks like this:
<menu 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"
tools:context=".MainActivity">
<item
android:id="#+id/action_search"
android:icon="#android:drawable/ic_menu_search"
android:title="#string/search_button"
app:actionViewClass="android.support.v7.widget.SearchView"
app:showAsAction="ifRoom|collapseActionView"/>
</menu>
Screenshot of the 'bug':

Did you try to limit the toolbar's height like
<android.support.v7.widget.Toolbar
...
android:layout_height="?attr/actionBarSize" />
? Instead of using wrap_content?
(?attr/actionBarSize causes the system to choose the standard toolbar height for the current configuration, e.g. 56dp for portrait on mobile phone)

Material Design - AppCompat toolbar without showing shadow

I am using the toolbar from AppCompat V7 to replace the previous action bar and want to have the shadow of toolbar like the previous actionbar. but the toolbar doesn't have shadow by default, and I have tried the fixes mentioned from reddit. but without luck.
the code to set the shadow:
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
The toolbar layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
android:minHeight="?attr/actionBarSize"
android:background="#F1F1F1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="0dp"
android:layout_margin="0dp"
foreground="?android:windowContentOverlay">
the activity layout:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity"
android:layout_width="match_parent"
android:id="#+id/drawer_layout"
android:layout_height="match_parent">
<!-- activity view -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
android:id="#+id/toolbar"
layout="#layout/toolbar" />
<FrameLayout android:id="#+id/fragment_container"
android:layout_below="#id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</RelativeLayout>
<!-- navigation drawer -->
<RelativeLayout
android:id="#+id/left_drawer"
android:layout_gravity="start"
android:layout_width="match_parent"
android:background="#fff"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingTop="8dp"
android:paddingBottom="8dp"
android:divider="#eee"
android:background="#EEE"
android:id="#+id/drawer_header">
<ImageView
android:id="#+id/user_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:contentDescription="#string/user_icon"
android:src="#drawable/ic_action_person"
android:paddingTop="0dp"
android:paddingLeft="0dp"/>
<TextView
android:id="#+id/userName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/user_icon"
android:gravity="center"
android:layout_gravity="center_vertical"
android:layout_centerVertical="true"
android:textSize="14sp"
android:text="#string/not_logged_in"
android:paddingTop="0dp"
android:paddingBottom="0dp"/>
</RelativeLayout>
<ListView
android:id="#+id/drawer_list"
android:layout_below="#+id/drawer_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:divider="#eee"
android:background="#fff"
android:dividerHeight="0dp" />
</RelativeLayout>
</android.support.v4.widget.DrawerLayout>
Setting in the style.xml:
<style name="myAppTheme" parent="Theme.AppCompat.Light">
<item name="colorPrimary">#color/primaryColor</item>
<item name="colorPrimaryDark">#color/primaryColorDark</item>
<item name="android:windowNoTitle">true</item>
<item name="windowActionBar">false</item>
<item name="drawerArrowStyle">#style/DrawerArrowStyle</item>
<item name="android:windowContentOverlay">#drawable/drawer_shadow</item>
</style>
<style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
<item name="spinBars">true</item>
<item name="color">#android:color/black</item>
</style>
Can anyone help?
thanks!
update 1: with the suggestion from Willis, I get the shadow displayed, but it is not below the toolbar, instead it is to the left of the toolbar.
Update 2: I have noticed that if I don't set the windowContentOverlay in toolbar.xml and styles.xml, the shadow is actually on the top of the toolbar.

Those two are completely different shadows. The vertical one is that of DrawerLayout. It's supposed to be showing beside expanded drawer. The horizontal one is part of windowContentOverlay on APIs below LOLLIPOP (on LOLLIPOP it's #null).
When you work with Toolbar widget the toolbar isn't part of window decor anymore so the shadow starts at the top of the window over the toolbar instead of below it (so you want the windowContentOverlay to be #null). Additionally you need to add an extra empty View below the toolbar pre-LOLLIPOP with its background set to a vertical shadow drawable (8dp tall gradient from #20000000 to #00000000 works best). On LOLLIPOP you can set 8dp elevation on the toolbar instead.
Note: Use the same gradient but horizontal as the drawer shadow for best results.

You can set the amount of shadow by using the setElevation method. For example:
getSupportActionBar().setElevation(25);
Increasing/decreasing the value passed to setElevation will consequently increase/decrease the presence of the shadow effect.

To show shadow under your toolbar please use AppBarLayout available in Google Android Design Support Library. Here is an example of how it should be used.
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:layout_height="?attr/actionBarSize"
android:layout_width="match_parent"/>
</android.support.design.widget.AppBarLayout>
To use Google Android Design Support Library enter following into your build.gradle file:
compile 'com.android.support:design:22.2.0'

Primary color (sometimes) goes transparent

I am developing with the latest SDK version (API 21) and Support Library 21.0.2 and I've been having trouble when trying to implement the new Material Design guidelines.
Material Design says that I need to have my primary color and my accent color and apply them over my app. But sometimes when I open the app the primary color becomes transparent in some widgets, it goes back to normal until I close the app (with the Back Button) and launch it again.
Here is an example of the primary color being transparent in my toolbar.
I am using Teal 500 as my primary color and, as you can see, it is transparent only in the android.support.v7.widget.Toolbar. This also happens on my Navigation Drawer and (sometimes , sometimes not) in another random widgets.
This is my Toolbar
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/primary"
android:minHeight="?attr/actionBarSize"
app:theme="#style/ThemeOverlay.AppCompat.ActionBar" >
I've tried with #color/primary and ?attr/colorPrimary with no success.
Here is my Theme (I don't know if it is related, but just in case):
<style name="AppBaseTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">#color/primary</item>
<item name="colorPrimaryDark">#color/primary_dark</item>
<item name="colorAccent">#color/accent</item>
<item name="colorAccent">#color/accent</item>
<item name="android:textColorPrimary">#fff</item>
<item name="windowActionModeOverlay">true</item>
<item name="android:textViewStyle">#style/Widget.TextView.White</item>
</style>
This just happens with the primary color, accent color works fine. My device is running 4.2.2 and I haven't checked on more devices.
Activity with Toolbar
<android.support.v4.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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<android.support.v7.widget.Toolbar
android:id="#+id/my_awesome_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:theme="#style/ThemeOverlay.AppCompat.ActionBar" />
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:ignore="MergeRootFrame" />
</LinearLayout>
<!-- The navigation drawer -->
<LinearLayout
android:id="#+id/navdrawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
android:orientation="vertical" >
<!-- IN THIS IT ALSO HAPPENS -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingBottom="16dp"
android:orientation="vertical"
android:background="#color/primary" >
<!-- Some stuff -->
</LinearLayout>
<ListView
android:id="#+id/left_drawer"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:background="#color/black_light"
android:divider="#color/grey"
android:choiceMode="singleChoice" />
</LinearLayout>
</android.support.v4.widget.DrawerLayout>

The problem is related with the way the toolbar's background is handled. It is shared between all instances of toolbar, so if you tend to change the toolbar's background alpha, you change the alpha of the drawable that is reused on other screens too.
Make sure you are not manipulating with the Toolbar's background properties, instead set the new background color/drawable each time you want to customize it.

Maybe these Support Library bugs are related to your issue.
https://code.google.com/p/android/issues/detail?id=78289
https://code.google.com/p/android/issues/detail?id=78346
Sadly, still not fixed in 21.0.2