我Implemeted一个飞旋如这里。现在我想将微调的动作条（设置微调的CustomView到动作条），但它不会出现在那里：（

I've implemeted spinner like here . And now I want to place spinner in ActionBar (setting spinner as CustomView to actionBar) but it doesn't appear there :(

Spinner spinner = (Spinner) findViewById(R.id.planets_spinner);
        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
                R.array.planets_array, android.R.layout.simple_spinner_item);

        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 

        spinner.setAdapter(adapter);

        actionBar.setCustomView(spinner);

这里是.XML

and here is .XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:baselineAligned="false"
    android:orientation="vertical" >

    <FrameLayout
        android:id="@+id/parkfragment"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

    <Spinner
        android:id="@+id/planets_spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content" />

</LinearLayout>

请，不建议使用动作条的下拉列表，因为我已经在使用动作条的标签，我不能使用它。机器人不允许同时使用它们二者。 任何帮助将AP preciated

Please, don't suggest to use ActionBar DropDown List, I can't use it because I'm already using ActionBar Tabs. android doesn't allow to use them both at the same time. Any help will be appreciated

推荐答案

您code缺少这一行：

Your code is missing this line:

actionBar.setDisplayShowCustomEnabled(true); 

请参阅ActionBar#setDisplayShowCustomEnabled(boolean showCustom） ，以供参考。

See ActionBar#setDisplayShowCustomEnabled(boolean showCustom) for reference.

为什么会出现一个空的的FrameLayout 在布局中占据所有的宽度和高度？去掉它。并删除的LinearLayout ，太。只要使用这个作为布局：

Why is there an empty FrameLayout in your layout that occupies all the width and height? Remove it. And remove the LinearLayout, too. Just use this as the layout:

<?xml version="1.0" encoding="utf-8"?>
<Spinner xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/planets_spinner"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" /> 

，然后写这样的事情，一切都正常：

And then write something like this and everything is fine:

actionBar.setCustomView(R.layout.your_layout_with_the_spinner);
actionBar.setDisplayShowCustomEnabled(true);

Spinner spinner = (Spinner) findViewById(R.id.planets_spinner);
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
        R.array.planets_array, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);