自定义menu样式

经常看到说想自定义menu的样式，根据前人的汗血，整理出一份资料：

---

public class MenuHelper { /** The menu type that represents the icon menu view */ public static final int TYPE_ICON = 0; /** The menu type that represents the expanded menu view */ public static final int TYPE_EXPANDED = 1; /** * The menu type that represents a menu dialog. Examples are context and sub * menus. This menu type will not have a corresponding MenuView, but it will * have an ItemView. */ public static final int TYPE_DIALOG = 2; private static Field sThemeResForTypeField; static { try { sThemeResForTypeField = Class.forName( "com.android.internal.view.menu.MenuBuilder") .getDeclaredField("THEME_RES_FOR_TYPE"); sThemeResForTypeField.setAccessible(true); } catch (Exception e) { } } public static void setMenuTheme(int themeIconMenu, int themeExpandedMenu) { try { Object value = sThemeResForTypeField.get(null); int[] array = (int[]) value; array[0] = themeIconMenu; array[1] = themeExpandedMenu; } catch (Exception e) { e.printStackTrace(); } } }

这个就是通过反射机制来定义menu的样式。如下我定义一个menu的样式：

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <style name="IconMenu" parent="@android:style/Theme.IconMenu">
        <item name="android:itemTextAppearance">@style/TextAppearance.Widget.IconMenu.Item</item>
        <item name="android:itemBackground">@drawable/menu_selector</item>
        <item name="android:windowAnimationStyle">@*android:style/Animation.OptionsPanel</item>
    </style>

    <style name="ExpandedMenu" parent="@android:Theme.ExpandedMenu">
    </style>

    <style name="TextAppearance.Widget.IconMenu.Item" parent="@android:TextAppearance.Small">
        <item name="android:textColor">@color/white</item>
    </style>
</resources>

 

然后，在你的activity种调用

MenuHelper.setMenuTheme(R.style.IconMenu, R.style.ExpandedMenu);

即可。