Java Android:FragmentTabHost小部件不显示标题

我正在尝试使用FragentTabHost设计一个自定义TabWidget，并遵循以下两个选项卡布局指南：

Im构建FragmentTabHost有三个片段，第一个片段有一个可扩展的列表视图

一切正常，我可以设置背景颜色、图标（如果我愿意）和指示器，就像分隔符一样（如果我愿意），但是由于某种原因，选项卡标题没有出现，我找不到它不出现的原因

如果我从tab\u layout.xml中的android:background=“@drawable/tab\u indicator”中删除tab\u indicator.xml，并将backgroundcolor设置为选项卡标题显示的任何颜色，但我显然得不到指示器

有没有人知道我到底出了什么问题，遗漏了什么。我已经试着解决这个问题，搜索för几天了，它开始变得非常令人沮丧，因为它看起来很简单

tab_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/tab_indicator">
    <TextView
        android:id="@+id/tabText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical|center_horizontal"
        android:gravity="center_vertical|center_horizontal"
        android:textColor="@drawable/tab_text"
        android:textSize="15dp"
        />
</LinearLayout>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
        <!-- Non focused states-->
    <item  android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item  android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
    <!-- Focused states-->
    <item    android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item    android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
     <!-- Pressed-->
    <item android:state_focused="true" android:state_selected="false" android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
    <item  android:state_focused="true" android:state_selected="true"  android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
</selector>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <android.support.v4.app.FragmentTabHost
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/tabHost"
        android:layout_gravity="center_horizontal"
        >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            >
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:showDividers="middle"
                android:layout_weight="0"
                android:orientation="horizontal"
                />
            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1"
                >
            </FrameLayout>
        </LinearLayout>
    </android.support.v4.app.FragmentTabHost>
</LinearLayout>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >


    <item android:top="-7dp" android:bottom="0dp" android:left="-7dp" android:right="-7dp">
        <shape
            android:shape="rectangle">
            <padding android:left="10dp"
                android:top="15dp"
                android:right="10dp"
                android:bottom="15dp" />
            <stroke android:width="4dp" android:color="#FF00ccff" />
            <solid android:color="#2fff00"
                />
        </shape>
    </item>
</layer-list>

tab_indicator.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/tab_indicator">
    <TextView
        android:id="@+id/tabText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical|center_horizontal"
        android:gravity="center_vertical|center_horizontal"
        android:textColor="@drawable/tab_text"
        android:textSize="15dp"
        />
</LinearLayout>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
        <!-- Non focused states-->
    <item  android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item  android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
    <!-- Focused states-->
    <item    android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item    android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
     <!-- Pressed-->
    <item android:state_focused="true" android:state_selected="false" android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
    <item  android:state_focused="true" android:state_selected="true"  android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
</selector>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <android.support.v4.app.FragmentTabHost
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/tabHost"
        android:layout_gravity="center_horizontal"
        >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            >
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:showDividers="middle"
                android:layout_weight="0"
                android:orientation="horizontal"
                />
            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1"
                >
            </FrameLayout>
        </LinearLayout>
    </android.support.v4.app.FragmentTabHost>
</LinearLayout>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >


    <item android:top="-7dp" android:bottom="0dp" android:left="-7dp" android:right="-7dp">
        <shape
            android:shape="rectangle">
            <padding android:left="10dp"
                android:top="15dp"
                android:right="10dp"
                android:bottom="15dp" />
            <stroke android:width="4dp" android:color="#FF00ccff" />
            <solid android:color="#2fff00"
                />
        </shape>
    </item>
</layer-list>

活动\u main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/tab_indicator">
    <TextView
        android:id="@+id/tabText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical|center_horizontal"
        android:gravity="center_vertical|center_horizontal"
        android:textColor="@drawable/tab_text"
        android:textSize="15dp"
        />
</LinearLayout>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
        <!-- Non focused states-->
    <item  android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item  android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
    <!-- Focused states-->
    <item    android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item    android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
     <!-- Pressed-->
    <item android:state_focused="true" android:state_selected="false" android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
    <item  android:state_focused="true" android:state_selected="true"  android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
</selector>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <android.support.v4.app.FragmentTabHost
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/tabHost"
        android:layout_gravity="center_horizontal"
        >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            >
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:showDividers="middle"
                android:layout_weight="0"
                android:orientation="horizontal"
                />
            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1"
                >
            </FrameLayout>
        </LinearLayout>
    </android.support.v4.app.FragmentTabHost>
</LinearLayout>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >


    <item android:top="-7dp" android:bottom="0dp" android:left="-7dp" android:right="-7dp">
        <shape
            android:shape="rectangle">
            <padding android:left="10dp"
                android:top="15dp"
                android:right="10dp"
                android:bottom="15dp" />
            <stroke android:width="4dp" android:color="#FF00ccff" />
            <solid android:color="#2fff00"
                />
        </shape>
    </item>
</layer-list>

tab_selected.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@drawable/tab_indicator">
    <TextView
        android:id="@+id/tabText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical|center_horizontal"
        android:gravity="center_vertical|center_horizontal"
        android:textColor="@drawable/tab_text"
        android:textSize="15dp"
        />
</LinearLayout>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
        <!-- Non focused states-->
    <item  android:state_focused="false" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item  android:state_focused="false" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
    <!-- Focused states-->
    <item    android:state_focused="true" android:state_selected="false" android:state_pressed="false" android:drawable="@drawable/tab_unselected" />
    <item    android:state_focused="true" android:state_selected="true" android:state_pressed="false" android:drawable="@drawable/tab_selected" />
     <!-- Pressed-->
    <item android:state_focused="true" android:state_selected="false" android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
    <item  android:state_focused="true" android:state_selected="true"  android:state_pressed="true" android:drawable="@drawable/tab_pressed" />
</selector>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <android.support.v4.app.FragmentTabHost
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/tabHost"
        android:layout_gravity="center_horizontal"
        >
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            >
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="35dp"
                android:showDividers="middle"
                android:layout_weight="0"
                android:orientation="horizontal"
                />
            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1"
                >
            </FrameLayout>
        </LinearLayout>
    </android.support.v4.app.FragmentTabHost>
</LinearLayout>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >


    <item android:top="-7dp" android:bottom="0dp" android:left="-7dp" android:right="-7dp">
        <shape
            android:shape="rectangle">
            <padding android:left="10dp"
                android:top="15dp"
                android:right="10dp"
                android:bottom="15dp" />
            <stroke android:width="4dp" android:color="#FF00ccff" />
            <solid android:color="#2fff00"
                />
        </shape>
    </item>
</layer-list>

---

解决了这个问题，如果我在FragmentTabHost和TabWidget中更改android:layou\u高度，它会显示文本，就这么简单。但在我看来，高度太大了^^我希望它像35dp一样小一些，如果我改变tab_selected.xml中的填充，取消选中并按下，然后我可以改变TabWidget activity_main.xml中的高度，否则文本就不适合这个选项卡。

解决了这个问题，如果我在FragmentTabHost和TabWidget中更改android:layout\u height，它会显示文本，就这么简单。但在我看来，高度太大了^^^我希望它像35dp一样小，如果我改变tab_selected.xml中的填充，取消选中并按下，然后我可以改变TabWidget activity_main.xml中的高度，就可以了，否则文本就不适合这个选项卡