即时通讯使用操作栏compability库。我试着从与openOptionsMenu（）功能的按钮打开选项菜单，但它什么都不做。

菜单显示和往常一样，当pressing我的手机上的菜单键。什么是错在这里？

 公共类ReadActivity扩展ActionBarActivity {

    ...

    @覆盖
    公共布尔onCreateOptionsMenu（功能菜单）{
        布尔值;
        MenuInflater menuInflater = getMenuInflater（）;
        menuInflater.inflate（R.menu.read，菜单）;
        值= super.onCreateOptionsMenu（菜单）;

        如果（Helper.SupportsNewApi（））{
            getActionBar（）隐藏（）。
        } 其他 {
            （（查看）（（的LinearLayout）findViewById（R.id.actionbar_compat））
                    。.getParent（））setVisibility（View.GONE）;
        }

        返回值;
    }

    @覆盖
    公共布尔onOptionsItemSelected（菜单项项）{
        开关（item.getItemId（））{
        案例android.R.id.home：
            完（）;
            打破;
        案例R.id.menu_search：
            // Toast.makeText（这一点，螺纹搜索，Toast.LENGTH_SHORT）.show（）;
            打破;
        案例R.id.menu_bookmark：
            // selectText（）;
            // setFullScreen（假）;
            打破;
        案例R.id.menu_day_night_mode：
            打破;
        案例R.id.menu_settings：
            打破;
        案例R.id.menu_zoom_in：
            showOverlay（假）;
            打破;
        案例R.id.menu_zoom_out：
            showOverlay（假）;
            打破;
        案例R.id.menu_table_of_contents：
            意图tocIntent =新的意图（这一点，TocActivity.class）;
            INT GET_SECTION_REFERENCE = 1;
            startActivityForResult（tocIntent，GET_SECTION_REFERENCE）;
            打破;
        案例R.id.menu_overflow：
            Toast.makeText（这一点，螺纹溢出，Toast.LENGTH_SHORT）.show（）;

            // closeOptionsMenu（）;
            openOptionsMenu（）; //尝试下面的藏汉，没有结果
            //getWindow().openPanel(Window.FEATURE_OPTIONS_PANEL，NULL）;
            打破;
        }
        返回super.onOptionsItemSelected（项目）;
    }


    @Override //关闭音量按钮
    公共布尔的onkeydown（INT键code，KeyEvent的事件）{
        如果（menu​​Shown＆安培;！及（键code == 25 ||键code == 24））{
            返回true;
        }
        返回super.onKeyDown（键code，事件）;
    }

    @覆盖
    公共布尔的onkeyup（INT键code，KeyEvent的事件）{
        Log.d（标签，关键code是=+键code）;
        如果（键code == 82）{
            如果（！menuShown）{
                // openOptionsMenu（）;
                showOverlay（真正的）;
            } 其他 {
                showOverlay（假）;
            }


                    //不希望它打开时，pressing菜单
            返回true;
        }否则，如果（键code == 4安培;＆安培; menuShown）{
            showOverlay（假）;
            返回true;
        }否则，如果（键code == 25安培;＆安培;！menuShown）{
            prevPage（）;
            返回true;
        }否则，如果（键code == 24安培;＆安培;！menuShown）{
            下一页（）;
            返回true;
        }

        返回super.onKeyUp（键code，事件）;
    }

}
 

解决方案

我不知道怎么关这个，但是的这个论坛后，我发现好像是answerring同样的问题你。

我希望这篇文章是有关足以解决你的问题。

祝你好运！

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);
    }

}

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!