问题描述:

I posted a similar question regarding my code compiling but I managed to get everything running. However, my code doesn't change the default white background to a darker color. Here is my code:

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

<resources>

<style name="Theme">

<item name="@android:panelFullBackground">@android:color/background_dark</item>

<item name="@android:panelColorBackground">@android:color/background_dark </item>

<item name="@android:panelBackground">@android:color/background_dark</item>

</style>

</resources>

I'm applying the theme here:

<menu xmlns:android="http://schemas.android.com/apk/res/android"

style="@style/Theme">

<item android:id="@+id/add"/>......

</menu>

Edit: Here is the output from the logcat

01-10 05:47:08.434: E/AndroidRuntime(30489): FATAL EXCEPTION: main

01-10 05:47:08.434: E/AndroidRuntime(30489): android.content.res.Resources$NotFoundException: Resource ID #0x0

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.content.res.Resources.getValue(Resources.java:901)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.content.res.Resources.getDrawable(Resources.java:589)

01-10 05:47:08.434: E/AndroidRuntime(30489): at com.android.internal.policy.impl.PhoneWindow.openPanel(PhoneWindow.java:500)

01-10 05:47:08.434: E/AndroidRuntime(30489): at com.android.internal.policy.impl.PhoneWindow.onKeyUpPanel(PhoneWindow.java:703)

01-10 05:47:08.434: E/AndroidRuntime(30489): at com.android.internal.policy.impl.PhoneWindow.onKeyUp(PhoneWindow.java:1475)

01-10 05:47:08.434: E/AndroidRuntime(30489): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1845)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2758)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2730)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.view.ViewRoot.handleMessage(ViewRoot.java:1999)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.os.Handler.dispatchMessage(Handler.java:99)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.os.Looper.loop(Looper.java:150)

01-10 05:47:08.434: E/AndroidRuntime(30489): at android.app.ActivityThread.main(ActivityThread.java:4385)

01-10 05:47:08.434: E/AndroidRuntime(30489): at java.lang.reflect.Method.invokeNative(Native Method)

01-10 05:47:08.434: E/AndroidRuntime(30489): at java.lang.reflect.Method.invoke(Method.java:507)

01-10 05:47:08.434: E/AndroidRuntime(30489): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)

01-10 05:47:08.434: E/AndroidRuntime(30489): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)

01-10 05:47:08.434: E/AndroidRuntime(30489): at dalvik.system.NativeStart.main(Native Method)

网友答案:

Instead of setting that theme to MenuItem, try setting this theme to your Application tag in AndroidManifest.xml like this:

...
<application android:theme="@style/Theme">
...

Add a parent in style when defining "Theme" in styles.xml like this:

Edit: this is working for me try to change colors

<resources>
     <style name="Theme" parent="android:Theme">
        <item name="@android:panelFullBackground">#9C133C</item>
        <item name="@android:panelColorBackground">#9BCD08</item>
        <item name="@android:panelBackground">#9C133C</item>
     </style>
</resources>
网友答案:

It appears that android:panelBackground should be a drawable, not a color.

A good place to start would probably be locating Android's default nine-patch in the SDK's platform resources (menu_hardkey_panel_holo_dark.9.png), copying them to your own drawable folders and editing them. Finally, as Adil pointed out, add the items to the style declaration as:

<style name="AppTheme" parent="Theme.Sherlock">
    <item name="android:panelBackground">@drawable/menu_hardkey_panel</item>
</style>

(Note that here I'm using ActionBarSherlock, hence the parent theme.)

网友答案:

Add this to the activity you want to change the menu appearance for:

protected final Factory menuFactory = new LayoutInflater.Factory() {
        @Override
        public View onCreateView(String name, final Context context, AttributeSet attrs) {
            if (name.equalsIgnoreCase("com.android.internal.view.menu.IconMenuItemView")) {
                try {
                    LayoutInflater f = LayoutInflater.from(context);
                    final View view = f.createView(name, null, attrs);
                    new Handler().post(new Runnable() {
                        @Override
                        public void run() {
                            view.setBackgroundResource(android.R.color.background_dark);
                            // You could also change the text color like this:
                            ((TextView) view).setTextAppearance(context,  android.R.style.TextAppearance_Medium);
                        }
                    });
                    return view;
                } catch (Exception e) {
                }
            }
            return null;
        }
    };

@Override
protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        getLayoutInflater().setFactory(menuFactory);
    }
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