openOptionsMenu function not working in ICS?

问题:

Im using action bar compability library. Im trying to open the options menu from a button with openOptionsMenu() function but it does nothing.

Menu shows as usual when pressing the menu key on my phone. What is wrong here?

public class ReadActivity extends ActionBarActivity {

    ...

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        boolean value;
        MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.read, menu);
        value = super.onCreateOptionsMenu(menu);

        if (Helper.SupportsNewApi()) {
            getActionBar().hide();
        } else {
            ((View) ((LinearLayout) findViewById(R.id.actionbar_compat))
                    .getParent()).setVisibility(View.GONE);
        }

        return value;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            finish();
            break;
        case R.id.menu_search:
            // Toast.makeText(this, "Tapped search", Toast.LENGTH_SHORT).show();
            break;
        case R.id.menu_bookmark:
            // selectText();
            // setFullScreen(false);
            break;
        case R.id.menu_day_night_mode:
            break;
        case R.id.menu_settings:
            break;
        case R.id.menu_zoom_in:
            showOverlay(false);
            break;
        case R.id.menu_zoom_out:
            showOverlay(false);
            break;
        case R.id.menu_table_of_contents:
            Intent tocIntent = new Intent(this, TocActivity.class);
            int GET_SECTION_REFERENCE = 1;
            startActivityForResult(tocIntent, GET_SECTION_REFERENCE);
            break;
        case R.id.menu_overflow:
            Toast.makeText(this, "Tapped overflow", Toast.LENGTH_SHORT).show();

            //closeOptionsMenu();
            openOptionsMenu(); //tried the below aswell, no results
            //getWindow().openPanel(Window.FEATURE_OPTIONS_PANEL, null);
            break;
        }
        return super.onOptionsItemSelected(item);
    }


    @Override //disable volume buttons
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        if (!menuShown && (keyCode == 25 || keyCode == 24)) {
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }

    @Override
    public boolean onKeyUp(int keyCode, KeyEvent event) {
        Log.d(tag, "Keycode is = "+keyCode);
        if (keyCode == 82) {
            if (!menuShown) {
                //openOptionsMenu();
                showOverlay(true);
            } else {
                showOverlay(false);
            }


                    //don't want it to open when pressing menu
            return true;
        } else if (keyCode == 4 && menuShown) {
            showOverlay(false);
            return true;
        } else if (keyCode == 25 && !menuShown) {
            prevPage();
            return true;
        } else if (keyCode == 24 && !menuShown) {
            nextPage();
            return true;
        }

        return super.onKeyUp(keyCode, event);
    }

}

回答1:

I'm not sure how relevant this is, but this forum post I found seems to be answerring the same question you have.

I hope this post is relevant enough to solve your problem.

Good luck!

回答2:

I was having the same problem trying to go around this openOptionsMenu thing on an app that I was doing that should run on Android 1.6 and up. Following the answer from Werner Van Belle I reached the conclusion that we could achieve a workaround to solve the problem. So I came up with the following code, it's always beatiful when people don't mark a method as final, so we can always override it. It's perfect if you don't want to give up on targeting your app to the latest api (android:targetSdkVersion="17"). I hope you guys like it. :)

@Override
public void openOptionsMenu() {

    Configuration config = getResources().getConfiguration();

    if((config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) 
            > Configuration.SCREENLAYOUT_SIZE_LARGE) {

        int originalScreenLayout = config.screenLayout;
        config.screenLayout = Configuration.SCREENLAYOUT_SIZE_LARGE;
        super.openOptionsMenu();
        config.screenLayout = originalScreenLayout;

    } else {
        super.openOptionsMenu();
    }
}

回答3:

To shed some light on this sad development by google. Google obviously wishes everybody to embrace the new ActionBar. They could have achieved that by making the ActionBar easier to use than the old menu system. That is however not how they planned the transition. No, they thought it would make sense to harras programmers by making the old menus impossible to use but without providing proper backward compatibility.

Below is the code taken from com.android.internal.policy.impl, which is supposed to create the optionsMenu panel. As you see, the code simply refuses to create an options Panel. Allthough, the ability is obviously there. So, to answer your question: forget it, Google doesn't want you to use that optionsPanel anymore.

 // Don't open an options panel for honeycomb apps on xlarge devices.
 // (The app should be using an action bar for menu items.)
 if (st.featureId == FEATURE_OPTIONS_PANEL) {
            Context context = getContext();
            Configuration config = context.getResources().getConfiguration();
            boolean isXLarge = (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) ==
                    Configuration.SCREENLAYOUT_SIZE_XLARGE;
            boolean isHoneycombApp = context.getApplicationInfo().targetSdkVersion >=
                    android.os.Build.VERSION_CODES.HONEYCOMB;

            if (isXLarge && isHoneycombApp) {
                return;
            }
        }

回答4:

I cannot understand the forcing blocking Menu button usage as well. However, the following trick helped me with showing a menu on "restricted" types of devices.

First of all we need to define, whether we require the following hack or not.

boolean requireDirtyMenuButtonHack = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB && (activity.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_XLARGE) > 0;

Then:

protected final OnClickListener mMenuButtonClickListener = new OnClickListener() {

    @Override
    public void onClick(View v) {
        if (requireDirtyMenuButtonHack) {
            Configuration config = getContext().getResources().getConfiguration();
            config.screenLayout &= ~Configuration.SCREENLAYOUT_SIZE_XLARGE;
            config.screenLayout |= Configuration.SCREENLAYOUT_SIZE_LARGE;
        }

        getActivity().openOptionsMenu();
    }
};

Don't forget to cleanup! (don't know if it's neccessary, but better to play kind)

public void onPrepareOptionsMenu(Menu menu) {
    if (requireDirtyMenuButtonHack) {
        Configuration config = getContext().getResources().getConfiguration();
        config.screenLayout &= ~Configuration.SCREENLAYOUT_SIZE_LARGE;
        config.screenLayout |= Configuration.SCREENLAYOUT_SIZE_XLARGE;
    }

    //do the preparing...
}

回答5:

android:targetSdkVersion="10" in manifest helped me. openOptionsMenu() works as expected now on ICS+. In addition, there is "overflow" menu button appears at the bottom of screen (on device buttons panel).

ps: I use NoTitleBar theme (NoActionBar for sdk 11 and higher) +ViewPagerIndicator by Jake Wharton.

回答6:

This worked for me, my code is pretty similar to yours, and what I want to do is from a button in the action bar, open the overflow menu:

public boolean onOptionsItemSelected(MenuItem item) {  
        switch (item.getItemId()) {  
        case R.id.menu_home_about:  
            dialog = new Dialog(this);
            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            dialog.setContentView(R.layout.customdialog);
            dialog.show();
            break;

            default:

        case R.id.menu_home_refresh:
            updateLists(true);
            break;

        case R.id.menu_home_menu:
            new Handler().postDelayed(new Runnable() {
                public void run() {                
                    openOptionsMenu();        
                }
            }, 0); 
            return true;

        }
        return false;  
    }

回答7:

Do you mean you want to show a button on the right side of the action bar?

Here is how I did mine:

res/menu/main.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/menu_share"
    android:title="Logout"
    android:icon="@android:drawable/ic_lock_power_off"
    android:orderInCategory="1"
    android:showAsAction="always" />
</menu>

Activity
1) take note of the ActionBarActivity; 2) MenuInflater in onCreateOptionsMenu 3) onOptionsItemsSelected (I think you need to return super.onOptionsItemSelected(item) )

public class BaseActivity extends ActionBarActivity {
    ....

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.main, menu);

    return true;
}
....
@Override
public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {
    case R.id.menu_share:


       //Do something
        break;
    }

    return super.onOptionsItemSelected(item);
}

回答8:

If you are using your custom toolbar, you can try:

toolBar.showOverflowMenu();