11

我已经制作了一个应用程序,其中包含 HelloTabActivity 中的选项卡,这些选项卡之间也有空格,任何人都可以建议如何删除此空间,并且选项卡下方有一条灰线,如何删除?

在此处输入图像描述

主要的.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">
<TabHost
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:padding="5dp" >
        <HorizontalScrollView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:scrollbars="none">
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />
        </HorizontalScrollView>
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:padding="5dp" />
    </LinearLayout>
</TabHost>
</LinearLayout>

样式.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="CustomTheme" parent="@android:style/Theme">
    <item name="android:tabWidgetStyle">@style/CustomTabWidget</item>
</style>
<style name="CustomTabWidget" parent="@android:style/Widget.TabWidget">
    <item name="android:textAppearance">@style/CustomTabWidgetText</item>
</style>
<style name="CustomTabWidgetText" 
    parent="@android:style/TextAppearance.Widget.TabWidget">
    <item name="android:textSize">10sp</item>
    <item name="android:textStyle">bold</item>
    <item name="android:textColor">#1589FF</item>
    <item name="android:padding">3dip</item>
</style>


</resources>

活动

public class InfralineTabWidget extends TabActivity{

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Resources res = getResources(); // Resource object to get Drawables
    TabHost tabHost = (TabHost)getTabHost();  // The activity TabHost

    TabHost.TabSpec spec;  // Resusable TabSpec for each tab
    Intent intent;  // Reusable Intent for each tab

    // Create an Intent to launch an Activity for the tab (to be reused)
    intent = new Intent().setClass(this, TopNewsActivity.class);

    // Initialize a TabSpec for each tab and add it to the TabHost
    spec = tabHost.newTabSpec("topNews").setIndicator("Top News", res.getDrawable(R.drawable.tab_news)).setContent(intent);
    tabHost.addTab(spec);

    // Do the same for the other tabs
    intent = new Intent().setClass(this, PowerActivity.class);
    spec = tabHost.newTabSpec("power").setIndicator("Power", res.getDrawable(R.drawable.tab_power)).setContent(intent);
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, EnergyActivity.class);
    spec = tabHost.newTabSpec("energy").setIndicator("Renewable Energy", res.getDrawable(R.drawable.tab_energy)).setContent(intent);
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, CoalActivity.class);
    spec = tabHost.newTabSpec("coal").setIndicator("Coal", res.getDrawable(R.drawable.tab_coal)).setContent(intent);
    tabHost.addTab(spec);

    intent = new Intent().setClass(this, OilnGasActivity.class);
    spec = tabHost.newTabSpec("oilnGas").setIndicator("Oil & Gas", res.getDrawable(R.drawable.tab_oilngas)).setContent(intent);
    tabHost.addTab(spec);

    tabHost.setCurrentTab(0);
    tabHost.getTabWidget().getChildAt(0).setLayoutParams(new LinearLayout.LayoutParams(100,25));
    tabHost.getTabWidget().getChildAt(1).setLayoutParams(new LinearLayout.LayoutParams(100,25));
    tabHost.getTabWidget().getChildAt(2).setLayoutParams(new LinearLayout.LayoutParams(100,25));
    tabHost.getTabWidget().getChildAt(3).setLayoutParams(new LinearLayout.LayoutParams(100,25));
    tabHost.getTabWidget().getChildAt(4).setLayoutParams(new LinearLayout.LayoutParams(100,25));



}



}

现在我想删除选项卡之间的黑色空间,它应该就像它们已连接一样,而且我无法删除选项卡下方的灰线。

谢谢

4

5 回答 5

61

要删除标签栏底部的灰线,您可以设置

tabHost.getTabWidget().setStripEnabled(false);

至于删除选项卡之间的间隙.. 最好的方法是使用您自己的可绘制而没有任何填充。您可以为此使用图像,或者您可以通过 xml 创建标签的背景,例如在<layer_list>根元素中:

<layer_list>
    <item android:top="0dp" android:left="0dp" android:right="0dp" android:bottom="0dp">
        <shape android:shape="rectangle">
        [..]
        </shape>
    </item>
    [..]
</layer_list>

并将这个drawable设置为你的背景TabWidget

要了解如何自定义标签,网络上有很多教程。例如,Josh 的这篇文章很短,并且有一个很好的解释。

更新

在这里,我分享了一个使用自定义选项卡(基于您的代码)来实现以下输出的 tabwidget 小示例:

自定义标签

你需要什么:

  1. 三个新的图层可绘制对象(用于选项卡的选定、聚焦和未选定状态)
  2. 两个状态可绘制对象(用于不同状态的文本和背景)
  3. 选项卡的新布局
  4. 更新你的main.xml
  5. 更新您的活动课程
  6. 更新您的 androidManifest.xml(删除样式声明)

三层可绘制对象:tab_normal.xml, tab_focused.xml, tab_selected.xml
drawable/tab_normal.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="@color/default_back_color" />
        </shape>
    </item>
    <item android:top="2dp">
        <shape android:shape="rectangle">
            <gradient android:startColor="#AAAAAA" android:centerColor="#888888"
                android:endColor="#666666" android:angle="90" />
            <corners android:bottomRightRadius="0dp"
                android:bottomLeftRadius="0dp" android:topLeftRadius="10dp"
                android:topRightRadius="10dp" />
        </shape>
    </item>
    <item android:top="4dp" android:left="1dp" android:right="1dp"
        android:bottom="0dp">
        <shape android:shape="rectangle">
            <solid android:color="@color/default_back_color" />
            <corners android:bottomRightRadius="0dp"
                android:bottomLeftRadius="0dp" android:topLeftRadius="8dp"
                android:topRightRadius="8dp" />
        </shape>
    </item>
</layer-list>

可绘制/tab_focused.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="@color/default_back_color" />
        </shape>
    </item>
    <item android:top="2dp">
        <shape android:shape="rectangle">
            <gradient android:startColor="#AAAAAA" android:centerColor="#888888"
                android:endColor="#666666" android:angle="90" />
            <corners android:bottomRightRadius="0dp"
                android:bottomLeftRadius="0dp" android:topLeftRadius="10dp"
                android:topRightRadius="10dp" />
        </shape>
    </item>
    <item android:top="4dp" android:left="1dp" android:right="1dp"
        android:bottom="0dp">
        <shape android:shape="rectangle">
            <gradient android:startColor="#8F8F8F" android:centerColor="#656565"
                android:endColor="#3F3F3F" android:angle="90" />
            <corners android:bottomRightRadius="0dp"
                android:bottomLeftRadius="0dp" android:topLeftRadius="8dp"
                android:topRightRadius="8dp" />
        </shape>
    </item>
</layer-list>

可绘制/tab_selected.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="@color/default_back_color" />
        </shape>
    </item>
    <item android:top="2dp">
        <shape android:shape="rectangle">
            <gradient android:startColor="#EEEEEE" android:centerColor="#CCCCCC"
                android:endColor="#AAAAAA" android:angle="-90" />
            <corners android:bottomRightRadius="0dp"
                android:bottomLeftRadius="0dp" android:topLeftRadius="10dp"
                android:topRightRadius="10dp" />
        </shape>
    </item>
    <item android:top="4dp" android:left="1dp" android:right="1dp"
        android:bottom="0dp">
        <shape android:shape="rectangle">
            <gradient android:startColor="#EAEAEA" android:centerColor="#9F9F9F"
                android:endColor="#696969" android:angle="90" />
            <corners android:bottomRightRadius="0dp"
                android:bottomLeftRadius="0dp" android:topLeftRadius="8dp"
                android:topRightRadius="8dp" />
        </shape>
    </item>
</layer-list>

两个状态drawable:tab_background_selector.xmltab_text_selector.xml
drawable/tab_background_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true" android:state_focused="false"
        android:state_pressed="false" android:drawable="@drawable/tab_selected"/>
    <item android:state_selected="false" android:state_focused="false"
        android:state_pressed="false" android:drawable="@drawable/tab_normal" />
    <item android:state_pressed="true" android:drawable="@drawable/tab_focused"/>
    <item android:state_focused="true" android:state_selected="true"
        android:state_pressed="false" android:drawable="@drawable/tab_selected"/>
</selector>

可绘制/tab_text_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_selected="true" android:color="#1589FF" />
    <item android:state_focused="true" android:color="#1589FF" />
    <item android:state_pressed="true" android:color="@android:color/white" />
    <item android:color="#F0F0F0" />
</selector>

选项卡的新布局:tab.xml
layout/tab.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    android:background="@drawable/tab_background_selector" android:gravity="center"
    android:orientation="vertical" android:padding="5dp">
    <ImageView android:id="@+id/tab_icon" android:layout_width="30dp"
        android:layout_height="30dp" android:scaleType="fitCenter" />
    <TextView android:id="@+id/tab_text" android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:singleLine="true"
        android:textStyle="bold" android:gravity="center_horizontal"
        android:textSize="10sp" android:padding="3dip" android:ellipsize="marquee"
        android:textColor="@drawable/tab_text_selector" />
</LinearLayout>

主.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">
    <TabHost android:id="@android:id/tabhost" android:layout_width="fill_parent"
        android:layout_height="fill_parent">
        <LinearLayout android:orientation="vertical"
            android:layout_width="fill_parent" android:layout_height="fill_parent">
            <HorizontalScrollView android:scrollbars="none"
                android:layout_width="fill_parent" android:layout_height="wrap_content">
                <TabWidget android:id="@android:id/tabs" 
                    android:layout_width="fill_parent" android:layout_height="wrap_content" />
            </HorizontalScrollView>
            <FrameLayout android:id="@android:id/tabcontent"
                android:layout_width="fill_parent" android:layout_height="fill_parent"
                android:padding="5dp" />
        </LinearLayout>
    </TabHost>
</LinearLayout>

InfralineTabWidget.java

public class InfralineTabWidget extends TabActivity
{
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        final TabHost tabHost = (TabHost) getTabHost();

        tabHost.addTab(createTab(TopNewsActivity.class, 
                "topNews", "Top News", R.drawable.tab_news));
        tabHost.addTab(createTab(PowerActivity.class, 
                "power", "Power", R.drawable.tab_power));
        tabHost.addTab(createTab(EnergyActivity.class, 
                "energy", "Renewable Energy", R.drawable.tab_energy));
        tabHost.addTab(createTab(CoalActivity.class, 
                "coal", "Coal", R.drawable.tab_coal));
        tabHost.addTab(createTab(OilnGasActivity.class, 
                "oilnGas", "Oil & Gas", R.drawable.tab_oilngas));

        tabHost.setCurrentTab(0);
        tabHost.getTabWidget().getChildAt(0).getLayoutParams().width = 140;
        tabHost.getTabWidget().getChildAt(1).getLayoutParams().width = 140;
        tabHost.getTabWidget().getChildAt(2).getLayoutParams().width = 140;
        tabHost.getTabWidget().getChildAt(3).getLayoutParams().width = 140;
        tabHost.getTabWidget().getChildAt(4).getLayoutParams().width = 140;
    }

    private TabSpec createTab(final Class<?> intentClass, final String tag, 
            final String title, final int drawable)
    {
        final Intent intent = new Intent().setClass(this, intentClass);

        final View tab = LayoutInflater.from(getTabHost().getContext()).
            inflate(R.layout.tab, null);
        ((TextView)tab.findViewById(R.id.tab_text)).setText(title);
        ((ImageView)tab.findViewById(R.id.tab_icon)).setImageResource(drawable);

        return getTabHost().newTabSpec(tag).setIndicator(tab).setContent(intent);
    }
}

就是这样。
要创建直角标签,只需从图层可绘制 xml 文件中丢失角规范。
还可以玩弄颜色、笔触等,以使结果符合您的喜好。

于 2011-04-27T12:54:01.947 回答
8

在 xml 布局中使用 android:showDividers="none"。

<TabWidget
        android:id="@android:id/tabs"
        android:layout_width="fill_parent"
        android:showDividers="none"
        android:layout_height="wrap_content"/>
于 2013-05-25T19:00:10.400 回答
1

如果您的构建目标是 Honeycomb 以上,您可以使用以下代码。

if (Integer.parseInt(Build.VERSION.SDK) >= Build.VERSION_CODES.HONEYCOMB) {
    tabHost.getTabWidget().setShowDividers(LinearLayout.SHOW_DIVIDER_NONE);
}
于 2012-03-17T11:27:27.780 回答
0

要消除选项卡之间的多余间隙,可以将 tabwidget 上的 measureWithLargestChild 属性设置为 false

<TabWidget
   android:id="@android:id/tabs"                    
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:measureWithLargestChild="false">
 </TabWidget>
于 2014-08-22T06:51:46.373 回答
0

一条魔法线。

mTabHost.getTabWidget().setDividerDrawable(null);

完毕

于 2016-08-30T12:35:42.983 回答