Question

我正在尝试在Android应用程序中更改我的ActionBar字体。

在4.3设备上运行我的代码时，一切正常，但当我尝试在2.3.3设备上运行时，我的应用程序崩溃了。

这是我用来更改字体的功能：

        SpannableString s = new SpannableString("MyActivity");
    s.setSpan(new TypefaceSpan(this, "myFont"), 0, s.length(),
            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

    // Update the action bar title with the TypefaceSpan instance
    ActionBar actionBar = getSupportActionBar();
    actionBar.setTitle(s);

由于新的TypefaceSpan系列，我的应用程序崩溃了。

08-31 19:00:21.359: E/AndroidRuntime(3874): FATAL EXCEPTION: main
08-31 19:00:21.359: E/AndroidRuntime(3874): java.lang.ExceptionInInitializerError
08-31 19:00:21.359: E/AndroidRuntime(3874):     at com.blabla.myapp.MainActivity.changeActionBarFont(MainActivity.java:41)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at com.blabla.myapp.MainActivity.setupGUIandListeners(MainActivity.java:27)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at com.blabla.myapp.MainActivity.onCreate(MainActivity.java:23)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1623)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1675)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.app.ActivityThread.access$1500(ActivityThread.java:121)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:943)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.os.Looper.loop(Looper.java:130)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at android.app.ActivityThread.main(ActivityThread.java:3768)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at java.lang.reflect.Method.invokeNative(Native Method)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at java.lang.reflect.Method.invoke(Method.java:507)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:636)
08-31 19:00:21.359: E/AndroidRuntime(3874):     at dalvik.system.NativeStart.main(Native Method)
08-31 19:00:21.359: E/AndroidRuntime(3874): Caused by: java.lang.NoClassDefFoundError: android.util.LruCache
08-31 19:00:21.359: E/AndroidRuntime(3874):     at com.blabla.myapp.TypefaceSpan.<clinit>(TypefaceSpan.java:34)
08-31 19:00:21.359: E/AndroidRuntime(3874):     ... 16 more
08-31 19:00:21.369: E/(186): Dumpstate > /data/log/dumpstate_app_error

我在onCreate函数中设置了字体。

任何帮助/想法？

提前致谢

Answer 1

您似乎正在定义自己的自定义TypefaceSpan类（com.blabla.myapp.TypefaceSpan）。在那里，你指的是android.util.LruCache。该类已在API级别12中添加。如果您希望支持较旧的设备，请考虑使用Android支持包中的android.support.v4.util.LruCache。

创建新的TypefaceSpan对象时抛出ExceptionInInitializerError

1 个答案: