This Activity already has an action bar supplied by the window decor

Question

Trying to move over my stuff to use Toolbar instead of action bar but I keep getting an error saying  java lang RuntimeException  Unable to start activity ComponentInfo com tyczj weddingalbum com xxx xxx MainActivity   java lang IllegalStateException  This Activity already has an action bar supplied by the window decor  Do not request Window FEATURE ACTION BAR and set windowActionBar to false in your theme to use a Toolbar instead              at android app ActivityThread performLaunchActivity ActivityThread java 2180              at android app ActivityThread handleLaunchActivity ActivityThread java 2230              at android app ActivityThread access 600 ActivityThread java 141              at android app ActivityThread H handleMessage ActivityThread java 1234              at android os Handler dispatchMessage Handler java 99              at android os Looper loop Looper java 137              at android app ActivityThread main ActivityThread java 5039              at java lang reflect Method invokeNative Native Method              at java lang reflect Method invoke Method java 511              at com android internal os ZygoteInit MethodAndArgsCaller run ZygoteInit java 793              at com android internal os ZygoteInit main ZygoteInit java 560              at dalvik system NativeStart main Native Method       Caused by  java lang IllegalStateException  This Activity already has an action bar supplied by the window decor  Do not request Window FEATURE ACTION BAR and set windowActionBar to false in your theme to use a Toolbar instead              at android support v7 app ActionBarActivityDelegateBase setSupportActionBar ActionBarActivityDelegateBase java 165              at android support v7 app ActionBarActivity setSupportActionBar ActionBarActivity java 92              at com xxx xxx MainActivity onCreate MainActivity java 113              at android app Activity performCreate Activity java 5104              at android app Instrumentation callActivityOnCreate Instrumentation java 1080              at android app ActivityThread performLaunchActivity ActivityThread java 2144                          at android app ActivityThread handleLaunchActivity ActivityThread java 2230                          at android app ActivityThread access 600 ActivityThread java 141                          at android app ActivityThread H handleMessage ActivityThread java 1234                          at android os Handler dispatchMessage Handler java 99                          at android os Looper loop Looper java 137                          at android app ActivityThread main ActivityThread java 5039                          at java lang reflect Method invokeNative Native Method                          at java lang reflect Method invoke Method java 511                          at com android internal os ZygoteInit MethodAndArgsCaller run ZygoteInit java 793                          at com android internal os ZygoteInit main ZygoteInit java 560                          at dalvik system NativeStart main Native Method    so then I added in my style for my activity to have no actionbar   lt style name  AppCompatTheme  parent   style Theme AppCompat Light  gt           lt item name  android windowActionBar  gt false lt  item gt   lt  style gt    and the theme is applies to activties in my manifest   lt activity         android name   MainActivity          android windowSoftInputMode  adjustResize stateHidden          android theme   style AppCompatTheme  android screenOrientation  portrait   gt    MainActivity extends GooglePlayServiceActivity so I also set the theme there too   lt activity        android name   GooglePlayServicesActivity         android label   string title activity google play services         android theme   style AppCompatTheme  gt    but I still get the error  I also do not request window feature anywhere  any ideas why I still get this

User · Answer

Add single line android theme   style AppTheme NoActionBar  to activity in AndroidManifest and you ve done     AndroidManifest xml    lt activity android name   activity YourActivity            android theme   style AppTheme NoActionBar  gt  lt  -- ADD THIS LINE -- gt      styles xml   lt style name  AppTheme NoActionBar  gt           lt item name  windowActionBar  gt false lt  item gt           lt item name  windowNoTitle  gt true lt  item gt   lt  style gt

User · Answer

If you are using Appcompact Activity use these three lines in your theme    lt item name  windowNoTitle  gt true lt  item gt   lt item name  windowActionBar  gt false lt  item gt   lt item name  android windowActionBarOverlay  gt false lt  item gt

User · Answer

lt style name  AppCompatTheme  parent   style Theme AppCompat Light  gt               lt item name  android windowActionBar  gt false lt  item gt       lt  style gt       Change this to NoActionBar            lt style name  AppTheme  parent  Theme AppCompat Light NoActionBar  gt               lt  -- Customize your theme here  -- gt            lt  style gt       This one worked for me

User · Answer

Another easy way is to make your theme a child of Theme AppCompat Light NoActionBar like so    lt style name  NoActionBarTheme  parent  Theme AppCompat Light NoActionBar  gt            lt  style gt

User · Answer

I solved it by removing this line     android theme   style Theme MyCompatTheme    from activity properties in the Manifest file

User · Answer

Add this in your values styles xml   lt style name  YourCustomTheme  parent  Theme AppCompat Light NoActionBar  gt   lt  style gt    lt style name  AppBaseTheme  parent  YourCustomTheme  gt    lt  style gt    lt style name  AppTheme  parent  AppBaseTheme  gt    lt  style gt    And add the following code in your values-v11 styles xml and values-v14 styles xml   lt style name  AppBaseTheme  parent  YourCustomTheme  gt    lt  style gt    Thats it  It will work

User · Answer

It could also be because you have a style without a parent specified   lt style name  quot DarkModeTheme quot   gt       lt item name  quot searchBarBgColor quot  gt  D6D6D6 lt  item gt   lt  style gt   Remove it  and it should fix the problem

User · Answer

I had toolbar added in my xml  Then in my activity i was adding this statement   setSupportActionBar toolbar     Removing this worked for me  I hope it helps someone

User · Answer

Or Simply change the  Style AppTheme   lt  -- Base application theme  -- gt   lt style name  AppTheme  parent  Theme AppCompat NoActionBar  gt    This works for me

User · Answer

I also faced same problem  But I used   getSupportActionBar   hide     before   setContentView R layout activity main     Now it is working   And we can try other option in Style xml    lt style name  AppTheme  parent  Theme AppCompat Light NoActionBar  gt           lt item name  colorPrimary  gt  color colorPrimary lt  item gt           lt item name  colorPrimaryDark  gt  color colorPrimaryDark lt  item gt           lt item name  colorAccent  gt  color colorAccent lt  item gt       lt  style gt

User · Answer

Go to the  style xml  of your project and make windowActionBar to false   lt style name  AppCompatTheme  parent   style Theme AppCompat Light  gt           lt item name  android windowActionBar  gt false lt  item gt   lt  style gt

User · Answer

I got this error due to a custome attribute inside  removing it fixed the issue       lt style name  quot AppTheme quot  parent  quot Theme AppCompat Light DarkActionBar quot  gt              lt item name  quot searchBarBgColor quot  gt  383838 lt  item gt   -- gt  remove this line      lt  style gt

User · Answer

Just put parent  Theme AppCompat NoActionBar  in your style xml file  Like -  lt style parent  Theme AppCompat NoActionBar  name  AppTheme NoActionBar  gt

User · Answer

This is how I solved the problem  Add below code in your AndroidMainfest xml   lt activity android name   YourClass              android theme   style Theme AppCompat Light NoActionBar  gt    lt  activity gt

User · Answer

I think you re developing for Android Lollipop  but anyway include this line    lt item name  windowActionBar  gt false lt  item gt     to your theme declaration inside of your app src main res values styles xml   Also  if you re using AppCompatActivity support library of version 22 1 or greater  add this line    lt item name  windowNoTitle  gt true lt  item gt    Your theme declaration may look like this after all these additions    lt  -- Base application theme  -- gt   lt style name  AppTheme  parent  Theme AppCompat Light DarkActionBar  gt       lt  -- Customize your theme here  -- gt       lt item name  colorPrimary  gt  color colorPrimary lt  item gt       lt item name  colorPrimaryDark  gt  color colorPrimaryDark lt  item gt       lt item name  colorAccent  gt  color colorAccent lt  item gt       lt item name  windowActionBar  gt false lt  item gt       lt item name  windowNoTitle  gt true lt  item gt   lt  style gt

User · Answer

You need to change      lt activity         android name   YOUR ACTIVITY          android theme   style AppTheme NoActionBar    gt   lt  application gt     these lines in the manifest It will perfectly work for me

User · Answer

If you want to combine some activities with actionbar and others not  you should use the base theme have actionbar enabled and then create a sub theme that you gonna use it on activities that don t require actionbar  For example you can use a sub style like this                lt style name  AppTheme NoActionBar  gt                  lt item name  windowActionBar  gt false lt  item gt                  lt item name  windowNoTitle  gt true lt  item gt               lt  style gt    While the base theme extends say        lt style name  AppTheme  parent  Theme AppCompat Light DarkActionBar  gt    and then use the non actionbar theme in the AndroidManifest File within the activity tag say       lt activity         android name  com example NonActionBarActivity          android theme   style AppTheme NoActionBar    you must apply this to each individual activity that don t need actionbar so if your project requires fewer action bar activities than non  then it s better to apply this on the base theme level

User · Answer

If you get the error on this line   setSupportActionBar         You need to check if your activity is referring to a theme that contains a toolbar  Your application s AppTheme might already contain a toolbar  such as    lt style name  AppTheme  parent  Theme AppCompat Light DarkActionBar  gt    and you are trying to add a second one  If you want to use your application s AppTheme  you need to remove the theme from your activity  in the manifest xml file   For example    lt activity     android name   ui activities SettingsActivity      android theme   style AppTheme1    gt  -- gt  remove this theme

User · Answer

To use Toolbar as an Action Bar  first disable the decor-provided Action Bar    The easiest way is to have your theme extend from      Theme AppCompat NoActionBar    or its light variant    Second  create a Toolbar instance  usually via your layout XML    lt android support v7 widget Toolbar     android id      id my awesome toolbar        android layout height    wrap content        android layout width    match parent        android minHeight     attr actionBarSize        android background     attr colorPrimary      gt    Then in your Activity or Fragment  set the Toolbar to act as your Action Bar    Override public void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout blah        Toolbar toolbar    Toolbar  findViewById R id my awesome toolbar       setSupportActionBar toolbar       This code worked for me

User · Answer

Use this inside your application tag in manifest or inside your Activity tag      android theme   style AppTheme NoActionBar

User · Answer

Add this two line in your app theme located in style xml -    lt style name  AppTheme  parent  Theme AppCompat Light DarkActionBar  gt       lt  -- Customize your theme here  -- gt       lt item name  colorPrimary  gt  color colorPrimary lt  item gt       lt item name  colorPrimaryDark  gt  color colorPrimaryDark lt  item gt       lt item name  colorAccent  gt  color colorAccent lt  item gt         Add this two line will fix your problem      lt item name  windowNoTitle  gt true lt  item gt     lt --1 this applies after 22 0 1 support library i think       lt item name  windowActionBar  gt true lt  item gt   lt --2

User · Answer

Simply put  you can do the following -  if  android os Build VERSION SDK INT  gt   21            Window window   getWindow            window addFlags WindowManager LayoutParams FLAG DRAWS SYSTEM BAR BACKGROUNDS           window clearFlags WindowManager LayoutParams FLAG TRANSLUCENT STATUS           window setStatusBarColor getResources   getColor R color colorPrimaryDark

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