Android Completely transparent Status Bar

Question

I ve searched the documentation but only found this  Link  Which is used to make the bar translucent  What I m trying to do is to make the status bar completely transparent  as shown in the image below  and make it backwards compatible for APK lt 19    My styles xml    lt resources xmlns tools  http   schemas android com tools  gt      lt style name  AppTheme  parent  Theme AppCompat Light  gt     lt item name  android actionBarStyle  gt  style ThemeActionBar lt  item gt     lt item name  android windowActionBarOverlay  gt true lt  item gt     lt  -- Support library compatibility -- gt     lt item name  actionBarStyle  gt  style ThemeActionBar lt  item gt     lt item name  windowActionBarOverlay  gt true lt  item gt     lt  style gt      lt style name  ThemeActionBar  parent  Widget AppCompat Light ActionBar Solid  gt     lt item name  android background  gt   null  lt  item gt     lt  -- Support library compatibility -- gt     lt item name  background  gt  null lt  item gt     lt item name  android displayOptions  gt  showHome   useLogo lt  item gt     lt item name  displayOptions  gt showHome useLogo lt  item gt      lt  style gt    lt  resources gt    What I was able to do

User · Answer

THERE ARE THREE STEPS  1  Just use this code segment into your OnCreate method      FullScreen   getWindow   setFlags WindowManager LayoutParams FLAG LAYOUT NO LIMITS     WindowManager LayoutParams FLAG LAYOUT NO LIMITS    If you   re working on Fragment  you should put this code segment in your activity   s OnCreate method  2  Be sure to also set the transparency in  res values-v21 styles xml   lt item name  quot android statusBarColor quot  gt  android color transparent lt  item gt   Or you can set the transparency programmatically  getWindow   setStatusBarColor Color TRANSPARENT    3  In anyway you should add the code segment in styles xml  lt item name  quot android windowTranslucentStatus quot  gt true lt  item gt   NOTE  This method just works on API 21 and above

User · Answer

Works for Android KitKat and above  For those who want to transparent the status bar and don t manipulate the NavigationBar  because all of these answers will transparent the NavigationBar too    The easiest way to achieve it   Put these 3 lines of code in the styles xml  v19  -  if you don t know how to have this  v19   just write them in your default styles xml and then use alt enter to automatically create it    lt item name  android windowFullscreen  gt false lt  item gt   lt item name  android windowContentOverlay  gt  null lt  item gt   lt item name  android fitsSystemWindows  gt false lt  item gt    And now  go to your MainActivity Class and put this Method out of onCreate in the class   public static void setWindowFlag Activity activity  final int bits  boolean on         Window win   activity getWindow        WindowManager LayoutParams winParams   win getAttributes        if  on            winParams flags    bits        else           winParams flags  amp    bits            win setAttributes winParams       Then put this code in the onCreate method of the Activity   if  Build VERSION SDK INT  gt   19  amp  amp  Build VERSION SDK INT  lt  21            setWindowFlag this  WindowManager LayoutParams FLAG TRANSLUCENT STATUS  true             if  Build VERSION SDK INT  gt   19            getWindow   getDecorView   setSystemUiVisibility View SYSTEM UI FLAG LAYOUT STABLE   View SYSTEM UI FLAG LAYOUT FULLSCREEN               make fully Android Transparent Status bar     if  Build VERSION SDK INT  gt   21            setWindowFlag this  WindowManager LayoutParams FLAG TRANSLUCENT STATUS  false           getWindow   setStatusBarColor Color TRANSPARENT           That s it

User · Answer

I found the answer while I investigating this library  https   github com laobie StatusBarUtil  so you need to add following codes to your activity   if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP        window addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS      window clearFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS      window addFlags WindowManager LayoutParams FLAG TRANSLUCENT NAVIGATION      window statusBarColor   Color TRANSPARENT   else       window addFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS

User · Answer

in my case as I ve a bottom tool bar I had a problem when testing the previous solutions  the android system buttons are covered with my bottom menu my solution is to add within the activity      protected void onCreate Bundle savedInstanceState              super onCreate savedInstanceState           force full screen mode     requestWindowFeature Window FEATURE NO TITLE       getWindow   setFlags WindowManager LayoutParams FLAG FULLSCREEN              WindowManager LayoutParams FLAG FULLSCREEN         setContentView R layout main activity container

User · Answer

lt item name  android statusBarColor  tools targetApi  lollipop  gt  android color transparent lt  item gt               lt  -- lt item name  android windowLightStatusBar  tools targetApi  m  gt true lt  item gt -- gt    Dont use windowLightStatusBar use instead statusBarColor    android color transparent

User · Answer

This is only for API Level    21  It works for me  Here is my code  Kotlin   override fun onCreate savedInstanceState  Bundle             super onCreate savedInstanceState          setContentView R layout activity main          findViewById lt View gt  android R id content  systemUiVisibility                   View SYSTEM UI FLAG LAYOUT FULLSCREEN or View SYSTEM UI FLAG LAYOUT STABLE

User · Answer

add these lines into your Activity before the setContentView    if  Build VERSION SDK INT  gt   Build VERSION CODES KITKAT        Window w   getWindow        w setFlags WindowManager LayoutParams FLAG LAYOUT NO LIMITS  WindowManager LayoutParams FLAG LAYOUT NO LIMITS       add these 2 lines into your AppTheme   lt item name  android windowTranslucentStatus  gt true lt  item gt   lt item name  android windowTranslucentNavigation  gt true lt  item gt    and last thing your minSdkVersion must b 19   minSdkVersion 19

User · Answer

Just add this line of code to your main java file   getWindow   setFlags      WindowManager LayoutParams FLAG LAYOUT NO LIMITS      WindowManager LayoutParams FLAG LAYOUT NO LIMITS

User · Answer

android fitsSystemWindows  true  only work on v21  We can set it in theme xml or in parent layout like LinearLayout or in CoordinateLayout    For below v21  We could not add this flag  Please create different values folder with  different  style xml file  as per your need

User · Answer

Simple and crisp and works with almost all use cases  for API level 16 and above    Use the following tag in your app theme to make the status bar transparent   lt item name  quot android statusBarColor quot  gt  android color transparent lt  item gt   And then use this code in your activity s onCreate method  View decorView   getWindow   getDecorView    decorView setSystemUiVisibility View SYSTEM UI FLAG LAYOUT STABLE           View SYSTEM UI FLAG LAYOUT FULLSCREEN      That s all you need to do    You can learn more from the developer documentation  I d also recommend reading this blog post  KOTLIN CODE      val decorView   window decorView     decorView systemUiVisibility    View SYSTEM UI FLAG LAYOUT STABLE             or View SYSTEM UI FLAG LAYOUT FULLSCREEN   Check my another answer here

User · Answer

This worked for me    lt item name  android statusBarColor  gt  android color transparent lt  item gt   lt item name  android navigationBarColor  gt  android color transparent lt  item gt   lt item name  android windowTranslucentStatus  gt false lt  item gt   lt item name  android windowTranslucentNavigation  gt false lt  item gt

User · Answer

Try the following code  private static void setStatusBarTransparent Activity activity        if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP            activity getWindow   addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS           activity getWindow   clearFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS           activity getWindow   addFlags WindowManager LayoutParams FLAG TRANSLUCENT NAVIGATION           activity getWindow    setStatusBarColor Color TRANSPARENT         else           activity getWindow   addFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS

User · Answer

You can use the external library StatusBarUtil   Add to your module level build gradle   compile  com jaeger statusbarutil library 1 4 0    Then you can use the following util for an Activity to make the status bar transparent   StatusBarUtil setTransparent Activity activity    Example

User · Answer

Use android fitsSystemWindows  false  in your top layout

User · Answer

This should work      In Activity s onCreate   for instance  if  Build VERSION SDK INT  gt   Build VERSION CODES KITKAT        Window w   getWindow        w setFlags WindowManager LayoutParams FLAG LAYOUT NO LIMITS  WindowManager LayoutParams FLAG LAYOUT NO LIMITS

User · Answer

I found fiddling with styles xml and activity to be too cumbersome hence created a common utility method which has below options set  Java  Window window   getWindow    window clearFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS   window addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS   window getDecorView   setSystemUiVisibility View SYSTEM UI FLAG LAYOUT FULLSCREEN   window setStatusBarColor Color TRANSPARENT     Kotlin DSL  activity window apply       clearFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS      addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS      decorView systemUiVisibility   View SYSTEM UI FLAG LAYOUT FULLSCREEN     statusBarColor   Color TRANSPARENT     And that s all it took to achieve transparent status bar  Hope this helps

User · Answer

For API  gt  23 with Day Night support you can use the extension below  Important part to understand is that android fitsSystemWindows  quot true quot  uses padding to move within insets  like you would with a Toolbar   Therefore it does not make sense to place it at your root layout  except DrawerLayout  CoordinatorLayout      these use their own implementation     lt style name  quot Theme YourApp DayNight quot  parent  quot Theme MaterialComponents DayNight NoActionBar quot  gt               lt item name  quot android windowLightStatusBar quot  gt  bool isDayMode lt  item gt       lt item name  quot android statusBarColor quot  gt  android color transparent lt  item gt   lt  style gt    lt androidx constraintlayout widget ConstraintLayout         gt        lt com google android material appbar MaterialToolbar                     android fitsSystemWindows  quot true quot  gt    lt  androidx constraintlayout widget ConstraintLayout  fun Activity transparentStatusBar         if  Build VERSION SDK INT  lt  Build VERSION CODES R            window decorView systemUiVisibility    View SYSTEM UI FLAG LAYOUT STABLE or View SYSTEM UI FLAG LAYOUT FULLSCREEN        else           window setDecorFitsSystemWindows false           Then call it like so  class YourActivity   AppCompatActivity         override fun onCreate savedInstanceState  Bundle             super onCreate savedInstanceState                      transparentStatusBar            Check these slides by Chris Banes  Becoming a master window fitter Edit  If you have problems with content floating behind your navigation bar  use    using Insetter binding yourViewHere applySystemWindowInsetsToPadding bottom   true

User · Answer

All you need to do is set these properties in your theme    lt item name  android windowTranslucentStatus  gt true lt  item gt   lt item name  android windowTranslucentNavigation  gt true lt  item gt    Your activity   container layout you wish to have a transparent status bar needs this property set   android fitsSystemWindows  true    It is generally not possible to perform this for sure on pre-kitkat  looks like you can do it but some strange code makes it so   EDIT  I would recommend this lib  https   github com jgilfelt SystemBarTint for lots of pre-lollipop status bar color control   Well after much deliberation I ve learned that the answer to totally disabling the translucency or any color placed on the status bar and navigation bar for lollipop is to set this flag on the window      In Activity s onCreate   for instance if  Build VERSION SDK INT  gt   Build VERSION CODES KITKAT        Window w   getWindow        w setFlags WindowManager LayoutParams FLAG LAYOUT NO LIMITS  WindowManager LayoutParams FLAG LAYOUT NO LIMITS       No other theme-ing is necessary  it produces something like this

User · Answer

Here is the Kotlin Extension  fun Activity transparentStatusBar          if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP             window addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS          window clearFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS          window addFlags WindowManager LayoutParams FLAG TRANSLUCENT NAVIGATION          window statusBarColor   Color TRANSPARENT        else         window addFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS

User · Answer

You can use this below code   getWindow   getDecorView   setSystemUiVisibility View SYSTEM UI FLAG LAYOUT FULLSCREEN    getWindow   setStatusBarColor Color TRANSPARENT     Include this layout in your main layout   toolbar xml   lt  xml version  1 0  encoding  utf-8   gt   lt androidx appcompat widget Toolbar xmlns android  http   schemas android com apk res android          android id    id toolbarNav          android layout width  match parent          android layout height  wrap content          android background   android color transparent          app contentInsetEnd  0dp          app contentInsetLeft  0dp          app contentInsetRight  0dp          app contentInsetStart  0dp  gt            lt RelativeLayout             android id    id rlBackImageLayout              android layout width  match parent              android layout height  wrap content              android background   drawable main background2  gt     add your color here               lt LinearLayout                 android layout width  match parent                  android layout height   dimen  40sdp                  android layout marginTop   dimen  16sdp                  android orientation  horizontal  gt                    lt ImageView                     android id    id toolbarIcon                      android layout width   dimen  30sdp                      android layout height   dimen  30sdp                      android layout gravity  center                      android layout marginStart   dimen  10sdp                      android padding   dimen  5sdp                      android src   drawable nav icon    gt                    lt TextView                     android id    id txtTitle                      android layout width  match parent                      android layout height  match parent                      android layout gravity  center                      android layout marginEnd   dimen  30sdp                      android fontFamily   font muli semibold                      android gravity  center                      android textColor   fff                      android textSize   dimen  14ssp                      android textStyle  bold                      tools text  test Data    gt                lt  LinearLayout gt            lt  RelativeLayout gt        lt  androidx appcompat widget Toolbar gt    Note  You can replace SDP and SSP with dp and sp respectively

User · Answer

Here is a extension in kotlin that do the trick   fun Activity setTransparentStatusBar         window decorView systemUiVisibility   View SYSTEM UI FLAG LAYOUT STABLE or View SYSTEM UI FLAG LAYOUT FULLSCREEN     if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP            window statusBarColor   Color TRANSPARENT

User · Answer

The following code will create a fully transparent status bar  package com demo   import android app Activity  import android graphics Color  import android os Build  import android os Bundle  import android view View  import android view Window  import android view WindowManager  import androidx appcompat app AppCompatActivity   public class MainActivity extends AppCompatActivity         Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main            if  Build VERSION SDK INT  gt   19  amp  amp  Build VERSION SDK INT  lt  21                setWindowFlag this  WindowManager LayoutParams FLAG TRANSLUCENT STATUS  true                     if  Build VERSION SDK INT  gt   19                getWindow   getDecorView   setSystemUiVisibility View SYSTEM UI FLAG LAYOUT STABLE   View SYSTEM UI FLAG LAYOUT FULLSCREEN                     if  Build VERSION SDK INT  gt   21                setWindowFlag this  WindowManager LayoutParams FLAG TRANSLUCENT STATUS  false               getWindow   setStatusBarColor Color TRANSPARENT                        public static void setWindowFlag Activity activity  final int bits  boolean on            Window win   activity getWindow            WindowManager LayoutParams winParams   win getAttributes            if  on                winParams flags    bits            else               winParams flags  amp    bits                    win setAttributes winParams

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Completely Transparent StatusBar and NavigationBar   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main        transparentStatusAndNavigation        private void transparentStatusAndNavigation           make full transparent statusBar     if  Build VERSION SDK INT  gt   19  amp  amp  Build VERSION SDK INT  lt  21            setWindowFlag WindowManager LayoutParams FLAG TRANSLUCENT STATUS                   WindowManager LayoutParams FLAG TRANSLUCENT NAVIGATION  true             if  Build VERSION SDK INT  gt   19            getWindow   getDecorView   setSystemUiVisibility                  View SYSTEM UI FLAG LAYOUT STABLE                           View SYSTEM UI FLAG LAYOUT FULLSCREEN                           View SYSTEM UI FLAG LAYOUT HIDE NAVIGATION                      if  Build VERSION SDK INT  gt   21            setWindowFlag WindowManager LayoutParams FLAG TRANSLUCENT STATUS                   WindowManager LayoutParams FLAG TRANSLUCENT NAVIGATION  false           getWindow   setStatusBarColor Color TRANSPARENT           getWindow   setNavigationBarColor Color TRANSPARENT            private void setWindowFlag final int bits  boolean on        Window win   getWindow        WindowManager LayoutParams winParams   win getAttributes        if  on            winParams flags    bits        else           winParams flags  amp    bits            win setAttributes winParams

User · Answer

You Can Use Below Code To Make Status Bar Transparent  See Images With red highlight which helps you to identify use of Below code    Kotlin code snippet for your android app  Step 1 Write down code in On create Method  if  Build VERSION SDK INT  gt   19  amp  amp  Build VERSION SDK INT  lt  21        setWindowFlag WindowManager LayoutParams FLAG TRANSLUCENT STATUS  true    if  Build VERSION SDK INT  gt   19        window decorView systemUiVisibility   View SYSTEM UI FLAG LAYOUT STABLE or View SYSTEM UI FLAG LAYOUT FULLSCREEN   if  Build VERSION SDK INT  gt   21        setWindowFlag WindowManager LayoutParams FLAG TRANSLUCENT STATUS  false      window statusBarColor   Color TRANSPARENT     Step2  You Need  SetWindowFlag method which describe in Below code   private fun setWindowFlag bits  Int  on  Boolean        val win   window     val winParams   win attributes     if  on            winParams flags   winParams flags or bits       else           winParams flags   winParams flags and bits inv             win attributes   winParams     Java code snippet for your android app   Step1  Main Activity Code  if  Build VERSION SDK INT  gt   19  amp  amp  Build VERSION SDK INT  lt  21        setWindowFlag this  WindowManager LayoutParams FLAG TRANSLUCENT STATUS  true     if  Build VERSION SDK INT  gt   19        getWindow   getDecorView   setSystemUiVisibility View SYSTEM UI FLAG LAYOUT STABLE   View SYSTEM UI FLAG LAYOUT FULLSCREEN      if  Build VERSION SDK INT  gt   21        setWindowFlag this  WindowManager LayoutParams FLAG TRANSLUCENT STATUS  false       getWindow   setStatusBarColor Color TRANSPARENT       Step2  SetWindowFlag Method  public static void setWindowFlag Activity activity  final int bits  boolean on        Window win   activity getWindow        WindowManager LayoutParams winParams   win getAttributes        if  on            winParams flags    bits        else           winParams flags  amp    bits            win setAttributes winParams

User · Answer

While all the answers above circulate around the same fundamental idea and you can get it to work with simple layouts using one of the examples above  However I wanted to change the color of the background while using sliding  full screen   tab bar aside  fragment navigation and maintain regular navigation  tab and action bars   After reading carefully an article by Anton Hadutski I had better understanding what is going on   I have DrawerLayout with ConstraintLayout  i e  container  which has Toolbar  include for the main fragment and BottomNavigationView   Setting DrawerLayout having fitsSystemWindows to true isn t sufficient  you need to set both DrawerLayout and ConstraintLayout  Assuming transparent status bar  the status bar color is now the same as the background color of ConstraintLayout   However  the included fragment has still the status bar inset  so animating another  full screen  fragment on top of with doesn t change the color of the status bar   A bit of code from the referred article into Activity s onCreate   ViewCompat setOnApplyWindowInsetsListener findViewById R id container     view  insets - gt          insets replaceSystemWindowInsets                  insets systemWindowInsetLeft                  0                  insets systemWindowInsetRight                  insets systemWindowInsetBottom                   And all is good  except now the Toolbar doesn t address the status bar height  Some more referring to the article and we have a fully working solution   val toolbar   findViewById lt Toolbar gt  R id my toolbar      ViewCompat setOnApplyWindowInsetsListener findViewById R id container     view  insets - gt          val params   toolbar layoutParams as ViewGroup MarginLayoutParams         params topMargin   insets systemWindowInsetTop         toolbar layoutParams   params         insets replaceSystemWindowInsets                  insets systemWindowInsetLeft                  0                  insets systemWindowInsetRight                  insets systemWindowInsetBottom                   The main activity xml  please note that marginTop in Toolbar is for preview purposes  it will be replaced by the code     lt  xml version  1 0  encoding  utf-8   gt       lt androidx drawerlayout widget DrawerLayout xmlns android  http   schemas android com apk res android          xmlns app  http   schemas android com apk res-auto          android id    id drawer layout          android layout width  match parent          android layout height  match parent          android fitsSystemWindows  true           gt        lt androidx constraintlayout widget ConstraintLayout 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 container          android layout width  match parent          android layout height  match parent          android background   color green          android fitsSystemWindows  true          tools context   MainActivity  gt            lt androidx appcompat widget Toolbar             android id    id my toolbar              android layout width  match parent              android layout height   attr actionBarSize              app layout constraintTop toTopOf   id container              android layout marginTop  26dp               android background   android color transparent                  gt                           lt  androidx appcompat widget Toolbar gt            lt include layout   layout content main    gt                   lt  androidx constraintlayout widget ConstraintLayout gt           lt  androidx drawerlayout widget DrawerLayout gt

User · Answer

in my case  i dont call at all  onCreate   its a react native app and this can be fixes also by using the react-native StatusBar component   one can also use this   override fun onStart             super onStart           window decorView systemUiVisibility   View SYSTEM UI FLAG LAYOUT FULLSCREEN or View SYSTEM UI FLAG LAYOUT STABLE         window addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS          window statusBarColor   Color TRANSPARENT

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Using this code in your XML  you will be able to see time bar in your activity    lt android support design widget CoordinatorLayout 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 fitsSystemWindows  true  gt

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All one need is to go into MainActivity java    protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState            Window g   getWindow            g setFlags WindowManager LayoutParams FLAG LAYOUT NO LIMITS  WindowManager LayoutParams FLAG LAYOUT NO LIMITS            setContentView R layout activity main

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The following code will make your status bar along with the navigation bar transparent  note that this will make your layout a full screen layout like the layouts used in games    Override public void onWindowFocusChanged boolean hasFocus        super onWindowFocusChanged hasFocus       if  hasFocus            hideSystemUI             private void hideSystemUI            Enables sticky immersive mode         For  quot lean back quot  mode  remove SYSTEM UI FLAG IMMERSIVE STICKY         Or for regular immersive mode replace it with SYSTEM UI FLAG IMMERSIVE     View decorView   getWindow   getDecorView        decorView setSystemUiVisibility              View SYSTEM UI FLAG IMMERSIVE STICKY                        Set the content to appear under the system bars so that the                        content doesn t resize when the system bars hide and show                        View SYSTEM UI FLAG LAYOUT STABLE                       View SYSTEM UI FLAG LAYOUT HIDE NAVIGATION                       View SYSTEM UI FLAG LAYOUT FULLSCREEN                        Hide the nav bar and status bar                       View SYSTEM UI FLAG HIDE NAVIGATION                       View SYSTEM UI FLAG FULLSCREEN      To learn more  visit this link

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To draw your layout under statusbar   values styles xml   lt item name  android windowTranslucentStatus  gt true lt  item gt    values-v21 styles xml   lt item name  android windowDrawsSystemBarBackgrounds  gt true lt  item gt   lt item name  android statusBarColor  gt  color colorPrimaryDark lt  item gt    Use CoordinatorLayout DrawerLayout which already take care of the fitsSystemWindows parameter or create your own layout to like this   public class FitsSystemWindowConstraintLayout extends ConstraintLayout        private Drawable mStatusBarBackground      private boolean mDrawStatusBarBackground       private WindowInsetsCompat mLastInsets       private Map lt View  int   gt  childsMargins   new HashMap lt  gt          public FitsSystemWindowConstraintLayout Context context            this context  null              public FitsSystemWindowConstraintLayout Context context  AttributeSet attrs            this context  attrs  0              public FitsSystemWindowConstraintLayout Context context  AttributeSet attrs  int defStyleAttr            super context  attrs  defStyleAttr            if  ViewCompat getFitsSystemWindows this                 ViewCompat setOnApplyWindowInsetsListener this  new android support v4 view OnApplyWindowInsetsListener                      Override                 public WindowInsetsCompat onApplyWindowInsets View view  WindowInsetsCompat insets                        FitsSystemWindowConstraintLayout layout    FitsSystemWindowConstraintLayout  view                      layout setChildInsets insets  insets getSystemWindowInsetTop    gt  0                       return insets consumeSystemWindowInsets                                                  setSystemUiVisibility View SYSTEM UI FLAG LAYOUT STABLE                       View SYSTEM UI FLAG LAYOUT FULLSCREEN               TypedArray typedArray   context obtainStyledAttributes new int   android R attr colorPrimaryDark                try                   mStatusBarBackground   typedArray getDrawable 0                 finally                   typedArray recycle                            else               mStatusBarBackground   null                       public void setChildInsets WindowInsetsCompat insets  boolean draw            mLastInsets   insets          mDrawStatusBarBackground   draw          setWillNotDraw  draw  amp  amp  getBackground      null            for  int i   0  i  lt  getChildCount    i                  View child   getChildAt i               if  child getVisibility      GONE                    if  ViewCompat getFitsSystemWindows this                         ConstraintLayout LayoutParams layoutParams    ConstraintLayout LayoutParams  child getLayoutParams                         if  ViewCompat getFitsSystemWindows child                             ViewCompat dispatchApplyWindowInsets child  insets                         else                           int   childMargins   childsMargins get child                           if  childMargins    null                                childMargins   new int   layoutParams leftMargin  layoutParams topMargin  layoutParams rightMargin  layoutParams bottomMargin                               childsMargins put child  childMargins                                                     if  layoutParams leftToLeft    LayoutParams PARENT ID                                layoutParams leftMargin   childMargins 0    insets getSystemWindowInsetLeft                                                      if  layoutParams topToTop    LayoutParams PARENT ID                                layoutParams topMargin   childMargins 1    insets getSystemWindowInsetTop                                                      if  layoutParams rightToRight    LayoutParams PARENT ID                                layoutParams rightMargin   childMargins 2    insets getSystemWindowInsetRight                                                      if  layoutParams bottomToBottom    LayoutParams PARENT ID                                layoutParams bottomMargin   childMargins 3    insets getSystemWindowInsetBottom                                                                                                       requestLayout               public void setStatusBarBackground Drawable bg            mStatusBarBackground   bg          invalidate               public Drawable getStatusBarBackgroundDrawable             return mStatusBarBackground             public void setStatusBarBackground int resId            mStatusBarBackground   resId    0   ContextCompat getDrawable getContext    resId    null          invalidate               public void setStatusBarBackgroundColor  ColorInt int color            mStatusBarBackground   new ColorDrawable color           invalidate                Override     public void onDraw Canvas canvas            super onDraw canvas           if  mDrawStatusBarBackground  amp  amp  mStatusBarBackground    null                int inset   mLastInsets    null   mLastInsets getSystemWindowInsetTop     0              if  inset  gt  0                    mStatusBarBackground setBounds 0  0  getWidth    inset                   mStatusBarBackground draw canvas                                     main activity xml   lt FitsSystemWindowConstraintLayout 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 layout width  match parent      android layout height  match parent      android fitsSystemWindows  true  gt        lt ImageView         android layout width  0dp          android layout height  0dp          android fitsSystemWindows  true          android scaleType  centerCrop          android src   drawable toolbar background          app layout constraintBottom toBottomOf   id toolbar          app layout constraintLeft toLeftOf  parent          app layout constraintRight toRightOf  parent          app layout constraintTop toTopOf  parent    gt        lt android support v7 widget Toolbar         android id    id toolbar          android layout width  0dp          android layout height   attr actionBarSize          android background   android color transparent          app layout constraintLeft toLeftOf  parent          app layout constraintRight toRightOf  parent          app layout constraintTop toTopOf  parent    gt        lt LinearLayout         android layout width  0dp          android layout height  0dp          android gravity  center          app layout constraintBottom toBottomOf  parent          app layout constraintLeft toLeftOf  parent          app layout constraintRight toRightOf  parent          app layout constraintTop toBottomOf   id toolbar  gt            lt TextView             android layout width  match parent              android layout height  wrap content              android gravity  center              android text  Content              android textSize  48sp    gt       lt  LinearLayout gt   lt  FitsSystemWindowConstraintLayout gt    Result   Screenshot

[android] Android Completely transparent Status Bar?

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