Intent之後activitybar報錯This Activity already has an action bar supplied by the window decor.

解決一個app的theme在intent之後與module之後的theme兼容的問題

程序中使用intent跳轉到一個新的activity，這個activity是作爲module導入，強行合成的一個工程，跳轉的時候閃退並且會報錯

 

 Process: com.xx.Dxxxxxxxxxx, PID: 4500
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xx.Dxxxxxxxxxx/com.example.xx.Dxxxxxxxxxx.activities.MainActivity}: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3107)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3250)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1947)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7032)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964)
     Caused by: java.lang.IllegalStateException: This Activity already has an action bar supplied by the window decor. Do not request Window.FEATURE_SUPPORT_ACTION_BAR and set windowActionBar to false in your theme to use a Toolbar instead.
        at android.support.v7.app.AppCompatDelegateImplV9.setSupportActionBar(AppCompatDelegateImplV9.java:201)
        at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:129)
        at com.example.xx.Dxxxxxxxxxx.activities.MainActivity.initToolbar(MainActivity.java:418)
        at com.example.xx.Dxxxxxxxxxx.ui.activities.MainActivity.initViews(MainActivity.java:309)
        at com.example.xx.Dxxxxxxxxxx.ui.activities.MainActivity.onCreate(MainActivity.java:174)
        at android.app.Activity.performCreate(Activity.java:7327)
        at android.app.Activity.performCreate(Activity.java:7318)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3087)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3250) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1947) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:7032) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:964) 

查看問題定位

setSupportActionBar(toolbar);

根據問題搜索到這篇文章：

https://www.cnblogs.com/hh9601/p/6404728.html

按照博主的方法把原styles.xml

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    
        <item name="colorPrimary">@color/white</item>
        <item name="colorPrimaryDark">@color/white</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="actionOverflowMenuStyle">@style/CKMenuStyle</item>
    </style>

改爲

<style name="AppTheme.NoActivityBar"">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>

    </style>

之後不再報錯，正常打開，但是界面顏色不對，等於把app的theme去掉也把module本來的主題也去掉了

想要module之後的theme和APP中的theme分離開，於是，接着把styles.xml改爲：

<style name="Theme.AppCompat.Light.NoActionBar.NoActivityBar" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>

        <item name="colorPrimary">@color/white</item>
        <item name="colorPrimaryDark">@color/white</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="actionOverflowMenuStyle">@style/CKMenuStyle</item>
    </style>

顯示正確，問題解決