openOptionsMenu 函数在 ICS 中不起作用? [英] openOptionsMenu function not working in ICS?

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问题描述

我正在使用操作栏兼容性库.我试图从带有 openOptionsMenu() 函数的按钮打开选项菜单,但它什么也没做.

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

按手机上的菜单键时,菜单会像往常一样显示.这里有什么问题?

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);
    }

}

推荐答案

我不确定这有多相关,但是 这个 论坛帖子我发现似乎在回答您遇到的相同问题.

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

我希望这篇文章足以解决您的问题.

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

祝你好运!

这篇关于openOptionsMenu 函数在 ICS 中不起作用?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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