我想使用ActionBar,我检查了一些postes,并且我编写了下面的代码,但在运行时我收到下面的logCat输出。我知道这是关于应用程序的主题,我试图设置一个新的主题,如下面的代码所示,但它也不起作用。如何设置一个主题使用ActionBar
请让我们现在如何解决它。
代码:
private void initActionBar() {
// TODO Auto-generated method stub
//setTheme(android.R.style.Theme_Holo);
getSupportActionBar().setTitle(R.string.action_discover_title);
}
style.xml
<resources>
<!--
Base application theme, dependent on API level. This theme is replaced
by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
-->
<style name="AppBaseTheme" parent="android:Theme.Light">
<!--
Theme customizations available in newer API levels can go in
res/values-vXX/styles.xml, while customizations related to
backward-compatibility can go here.
-->
</style>
<!-- Application theme. -->
<style name="AppTheme" parent="AppBaseTheme">
<!-- All customizations that are NOT specific to a particular API-level can go here. -->
</style>
</resources>
logcat的:
09-01 17:35:46.237: E/AndroidRuntime(19987): FATAL EXCEPTION: main
09-01 17:35:46.237: E/AndroidRuntime(19987): Process: com.example.ble_00, PID: 19987
09-01 17:35:46.237: E/AndroidRuntime(19987): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.ble_00/com.example.ble_00.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
09-01 17:35:46.237: E/AndroidRuntime(19987): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2689)
09-01 17:35:46.237: E/AndroidRuntime(19987): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
09-01 17:35:46.237: E/AndroidRuntime(19987): at android.app.ActivityThread.access$900(ActivityThread.java:177)
09-01 17:35:46.237: E/AndroidRuntime(19987): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
09-01 17:35:46.237: E/AndroidRuntime(19987): at android.os.Handler.dispatchMessage(Handler.java:102)