Question

我正在使用以下类创建图标化弹出菜单：

public class IconizedMenu implements MenuBuilder.Callback, MenuPresenter.Callback {
    private Context mContext;
    private MenuBuilder mMenu;
    private View mAnchor;
    private MenuPopupHelper mPopup;
    private OnMenuItemClickListener mMenuItemClickListener;
    private OnDismissListener mDismissListener;

    /**
     * Callback interface used to notify the application that the menu has closed.
     */
    public interface OnDismissListener {
        /**
         * Called when the associated menu has been dismissed.
         *
         * @param menu The PopupMenu that was dismissed.
         */
        public void onDismiss(IconizedMenu menu);
    }

    /**
     * Construct a new PopupMenu.
     *
     * @param context Context for the PopupMenu.
     * @param anchor Anchor view for this popup. The popup will appear below the anchor if there
     * is room, or above it if there is not.
     */
    public IconizedMenu(Context context, View anchor) {
        mContext = context;
        mMenu = new MenuBuilder(context);
        mMenu.setCallback(this);
        mAnchor = anchor;
        mPopup = new MenuPopupHelper(context, mMenu, anchor);
        mPopup.setCallback(this);
        mPopup.setForceShowIcon(true);
    }

    /**
     * @return the {@link android.view.Menu} associated with this popup. Populate the returned Menu with
     * items before calling {@link #show()}.
     *
     * @see #show()
     * @see #getMenuInflater()
     */
    public Menu getMenu() {
        return mMenu;
    }

    /**
     * @return a {@link android.view.MenuInflater} that can be used to inflate menu items from XML into the
     * menu returned by {@link #getMenu()}.
     *
     * @see #getMenu()
     */
    public MenuInflater getMenuInflater() {
        return new SupportMenuInflater(mContext);
    }

    /**
     * Inflate a menu resource into this PopupMenu. This is equivalent to calling
     * popupMenu.getMenuInflater().inflate(menuRes, popupMenu.getMenu()).
     * @param menuRes Menu resource to inflate
     */
    public void inflate(int menuRes) {
        getMenuInflater().inflate(menuRes, mMenu);
    }

    /**
     * Show the menu popup anchored to the view specified during construction.
     * @see #dismiss()
     */
    public void show() {
        mPopup.show();
    }

    /**
     * Dismiss the menu popup.
     * @see #show()
     */
    public void dismiss() {
        mPopup.dismiss();
    }

    /**
     * Set a listener that will be notified when the user selects an item from the menu.
     *
     * @param listener Listener to notify
     */
    public void setOnMenuItemClickListener(OnMenuItemClickListener listener) {
        mMenuItemClickListener = listener;
    }

    /**
     * Set a listener that will be notified when this menu is dismissed.
     *
     * @param listener Listener to notify
     */
    public void setOnDismissListener(OnDismissListener listener) {
        mDismissListener = listener;
    }

    /**
     * @hide
     */
    public boolean onMenuItemSelected(MenuBuilder menu, MenuItem item) {
        if (mMenuItemClickListener != null) {
            return mMenuItemClickListener.onMenuItemClick(item);
        }
        return false;
    }

    /**
     * @hide
     */
    public void onCloseMenu(MenuBuilder menu, boolean allMenusAreClosing) {
        if (mDismissListener != null) {
            mDismissListener.onDismiss(this);
        }
    }

    /**
     * @hide
     */
    public boolean onOpenSubMenu(MenuBuilder subMenu) {
        if (subMenu == null) return false;

        if (!subMenu.hasVisibleItems()) {
            return true;
        }

// Current menu will be dismissed by the normal helper, submenu will be shown in its place.
        new MenuPopupHelper(mContext, subMenu, mAnchor).show();
        return true;
    }

    /**
     * @hide
     */
    public void onCloseSubMenu(SubMenuBuilder menu) {
    }

    /**
     * @hide
     */
    public void onMenuModeChange(MenuBuilder menu) {
    }

    /**
     * Interface responsible for receiving menu item click events if the items themselves
     * do not have individual item click listeners.
     */
    public interface OnMenuItemClickListener {
        /**
         * This method will be invoked when a menu item is clicked if the item itself did
         * not already handle the event.
         *
         * @param item {@link MenuItem} that was clicked
         * @return <code>true</code> if the event was handled, <code>false</code> otherwise.
         */
        public boolean onMenuItemClick(MenuItem item);
    }

}

但是如果我尝试在lolipop上运行它会导致错误。它在API级别＆lt; 21.这是logcat：

02-15 06:08:09.165: E/AndroidRuntime(3824): FATAL EXCEPTION: main
02-15 06:08:09.165: E/AndroidRuntime(3824): Process: hzs.sk.hzs, PID: 3824
02-15 06:08:09.165: E/AndroidRuntime(3824): java.lang.IllegalStateException: Could not execute method of the activity
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.View$1.onClick(View.java:4007)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.View.performClick(View.java:4756)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.View$PerformClick.run(View.java:19749)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.os.Handler.handleCallback(Handler.java:739)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.os.Handler.dispatchMessage(Handler.java:95)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.os.Looper.loop(Looper.java:135)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.app.ActivityThread.main(ActivityThread.java:5221)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at java.lang.reflect.Method.invoke(Native Method)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at java.lang.reflect.Method.invoke(Method.java:372)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
02-15 06:08:09.165: E/AndroidRuntime(3824): Caused by: java.lang.reflect.InvocationTargetException
02-15 06:08:09.165: E/AndroidRuntime(3824):     at java.lang.reflect.Method.invoke(Native Method)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at java.lang.reflect.Method.invoke(Method.java:372)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.View$1.onClick(View.java:4002)
02-15 06:08:09.165: E/AndroidRuntime(3824):     ... 10 more
02-15 06:08:09.165: E/AndroidRuntime(3824): Caused by: java.lang.RuntimeException: Failed to resolve attribute at index 6
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:603)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.ViewGroup$LayoutParams.setBaseAttributes(ViewGroup.java:6423)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.ViewGroup$MarginLayoutParams.<init>(ViewGroup.java:6591)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.widget.FrameLayout$LayoutParams.<init>(FrameLayout.java:735)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.widget.FrameLayout.generateLayoutParams(FrameLayout.java:679)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.widget.FrameLayout.generateLayoutParams(FrameLayout.java:62)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.support.v7.internal.view.menu.MenuPopupHelper$MenuAdapter.getView(MenuPopupHelper.java:370)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.support.v7.internal.view.menu.MenuPopupHelper.measureContentWidth(MenuPopupHelper.java:219)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.support.v7.internal.view.menu.MenuPopupHelper.tryShow(MenuPopupHelper.java:153)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at android.support.v7.internal.view.menu.MenuPopupHelper.show(MenuPopupHelper.java:125)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at hzs.sk.hzs.IconizedMenu.show(IconizedMenu.java:88)
02-15 06:08:09.165: E/AndroidRuntime(3824):     at hzs.sk.hzs.MainActivity.showMenu(MainActivity.java:294)
02-15 06:08:09.165: E/AndroidRuntime(3824):     ... 13 more

使用它的活动扩展了Activity，而不是ActionBarActivity。任何想法为什么会产生错误？

先谢谢

编辑：我尝试过使用默认的appCompat PopUp菜单（所以没有图标），它会抛出相同的错误。有什么想法吗？

Answer 1

如果您正在使用Appcompat和棒棒糖，请尝试添加新样式

<style name="MyPopupMenu" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="android:popupBackground">#0F213F</item>
    <item name="android:disabledAlpha">0.5</item>
</style>

并创建弹出菜单

Context wrapper = new ContextThemeWrapper(context, R.style.MyPopupMenu);
            PopupMenu popup = new PopupMenu(wrapper, view);

Answer 2

在这种情况下，MenuPopupHelper.MenuAdapter#getView()尝试让ITEM_LAYOUT = R.layout.abc_popup_menu_item_layout充气，并且在此过程中android.support.v7.internal.view.menu.ListMenuItemView创建并要求 R.styleable.MenuView（查看内部查找 - 声明样式名称=＆＃34; MenuView＆＃34; ），其中索引6处的属性为 attr name =＆＃34; android： itemIconDisabledAlpha＆＃34; 这意味着在应用程序主题中没有定义此属性。 <style name="Theme">为任何平台<item name="disabledAlpha">0.5</item>定义的必需属性为link。

要使用默认值，只需按照<style name="Theme">扩展的主题之一扩展应用主题。

我建议采用以下解决方案：

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
</style>

或任何其他具有NoActionBar的Theme.AppCompat 如果您希望将Toolbar用于旧版本的v21平台，并使用所有新功能替换ActionBar组件。

但实际上可以随意使用其他主题，如Holo或Material，如果真的需要它。

祝你好运！

随时问。

Answer 3

这似乎是由

指示的缺少或更改的样式属性的问题

Caused by: java.lang.RuntimeException: Failed to resolve attribute at index 6 02-15 06:08:09.165: E/AndroidRuntime(3824): at android.content.res.TypedArray.getLayoutDimension(TypedArray.java:603)

内部android在本地主题上下文中使用?attr/查找样式属性。尝试调试发生这种情况的代码行，找出缺少哪种样式。

Answer 4

我找到了解决方案。唯一的问题是我在我的values-v21 / styles.xml

中有以下声明

<style name="AppTheme" parent="android:Theme.Material.Light">
</style>

所以我把它改成了

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
</style>

现在效果很好。

AppCompat PopUp菜单RuntimeException

4 个答案: