java.lang.reflect调用不起作用

Question

我正在使用以下方法在我的Android ActionBar上强制堆叠选项卡。

当我开始使用proguard时，Class操作不再工作。没有收到错误信息，我只是没有得到堆叠标签ActionBar。

这是我在proguard规则中的内容。有什么我遗漏的吗?

-keepattributes Signature
-keepattributes *Annotation*
-keep class java.lang.reflect.** { *; }
-keep class com.company.myapplication1.SetStackedTabs.** { *; }

_

public static void SetStackedTabs(Object inActionBar, final boolean inHasEmbeddedTabs){
    // get the ActionBar class
    Class<?> actionBarClass = inActionBar.getClass();
    // if it is a Jelly Bean implementation (ActionBarImplJB), get the super class (ActionBarImplICS)
    if ("android.support.v7.app.ActionBarImplJB".equals(actionBarClass.getName()))
    {
        actionBarClass = actionBarClass.getSuperclass();
    }
    // if Android 4.3 >
    if ("android.support.v7.app.ActionBarImplJBMR2".equals(actionBarClass.getName())){
        actionBarClass = actionBarClass.getSuperclass().getSuperclass();
    }
    try
    {
        // try to get the mActionBar field, because the current ActionBar is probably just a wrapper Class
        // if this fails, no worries, this will be an instance of the native ActionBar class or from the ActionBarImplBase class
        final Field actionBarField = actionBarClass.getDeclaredField("mActionBar");
        actionBarField.setAccessible(true);
        inActionBar = actionBarField.get(inActionBar);
        actionBarClass = inActionBar.getClass();
    }
    catch (IllegalAccessException e) {}
    catch (IllegalArgumentException e) {}
    catch (NoSuchFieldException e) {}
    try
    {
        // now call the method setHasEmbeddedTabs, this will put the tabs inside the ActionBar
        // if this fails, you're on you own <img class="wp-smiley" alt=";-)" src="http://www.blogc.at/wp-includes/images/smilies/icon_wink.gif">
        final Method method = actionBarClass.getDeclaredMethod("setHasEmbeddedTabs", new Class[] { Boolean.TYPE });
        method.setAccessible(true);
        method.invoke(inActionBar, new Object[]{ inHasEmbeddedTabs });
    }
    catch (NoSuchMethodException e)        {}
    catch (InvocationTargetException e) {}
    catch (IllegalAccessException e) {}
    catch (IllegalArgumentException e) {}
}

Answer 1

已解决

我必须在ProGuard配置中输入这一行。

-keep class android.support.v7.** { *; }