java.lang.IllegalStateException: You need to use a Theme.AppCompat theme

配置：

中设置theme为

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:theme="@android:style/Theme.Light.NoTitleBar"

        android:label="@string/app_name"

        >

报错信息：

09-20 10:31:58.185    1392-1392/? E/AndroidRuntime﹕ FATAL EXCEPTION: main

    Process: networkimageviewer.com.myapplication, PID: 1392

    java.lang.RuntimeException: Unable to start activity ComponentInfo{networkimageviewer.com.myapplication/networkimageviewer.com.myapplication.WelcomeActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.

            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2192)

            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2241)

            at android.app.ActivityThread.access$800(ActivityThread.java:141)

            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1204)

            at android.os.Handler.dispatchMessage(Handler.java:102)

            at android.os.Looper.loop(Looper.java:136)

            at android.app.ActivityThread.main(ActivityThread.java:5049)

            at java.lang.reflect.Method.invokeNative(Native Method)

            at java.lang.reflect.Method.invoke(Method.java:515)

            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)

            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)

            at dalvik.system.NativeStart.main(Native Method)

     Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.

            at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:309)

            at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:278)

            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:252)

            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)

            at networkimageviewer.com.myapplication.WelcomeActivity.onCreate(WelcomeActivity.java:22)

            at android.app.Activity.performCreate(Activity.java:5249)

            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)

            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2156)

            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2241)

            at android.app.ActivityThread.access$800(ActivityThread.java:141)

            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1204)

            at android.os.Handler.dispatchMessage(Handler.java:102)

            at android.os.Looper.loop(Looper.java:136)

            at android.app.ActivityThread.main(ActivityThread.java:5049)

            at java.lang.reflect.Method.invokeNative(Native Method)

            at java.lang.reflect.Method.invoke(Method.java:515)

            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)

            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)

            at dalvik.system.NativeStart.main(Native Method)

解决办法：
To simply add ActionBar Compat your activity or application should use @style/Theme.AppCompat theme in AndroidManifest.xml like this:

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:theme="@style/Theme.AppCompat.Light.NoActionBar"

        android:label="@string/app_name"

        >

http://stackoverflow.com/questions/18063395/actionbarcompat-java-lang-illegalstateexception-you-need-to-use-a-theme-appcom

巴特西

java.lang.IllegalStateException: You need to use a Theme.AppCompat theme

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