Android的选项卡tabwidget之间消除空间 [英] Android remove space between tabs in tabwidget

问题描述

我已经有标签就像HelloTabActivity的应用程序，还有这些选项卡之间的空间，任何人都可以建议如何消除这种空间，同时也有标签怎么可能被删除下方的灰线？

I have made an application which has tabs like in HelloTabActivity, there is also space between these tabs, can anyone suggest how to remove this space and also there is a grey line beneath the tabs how can that be removed?

的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">
<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>

styles.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));



}



}

现在我要删除的选项卡之间的黑色空间，它应该像它们所连接，也我不能够去除标签下方的灰线。

Now i want to remove the black spaces between the tabs and it should be like they are connected and also i'm not able to remove the grey line below the tabs.

感谢

推荐答案

有关在您的TabBar底部去除灰线，您可以设置

For removing the grey line at the bottom of your tabbar, you can set

tabHost.getTabWidget().setStripEnabled(false);

由于标签..之间取出的差距，最好的办法是使用自己的绘制，没有任何垫的。您可以使用图像，或者是你可以通过XML的创建标签的背景，说在＆LT; layer_list＆GT; 根元素：

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

和设置这个可绘制为背景的 TabWidget 。

and set this drawable to be the background of your TabWidget.

要了解如何自定义选项卡中，有很多在网络上的教程。例如这个由Josh 短，有一个很好的解释。

To see how to customize your tabs, there are a lot of tutorials on the web. For example this one by Josh is short and has a nice explanation.

更新

下面我分享他们使用自定义选项卡tabwidget一个小样本（根据您的code），以实现以下的输出：

Here I share a small sample of tabwidget using custom tabs (based on your code) to achieve the following output:

你需要什么：

1. 在三个新的图层可绘制（对于 选择重点和未选中 标签的状态）
2. 在两家国有可绘（全文 和不同的背景 州）
3. 的标签一个新的布局
4. 更新的main.xml
5. 更新活动类
6. 更新您的Andr​​oidManifest.xml中 （删除样式声明）

1. three new layer drawables (for selected, focused and unselected states of the tabs)
2. two state drawables (for the text and background of the different states)
3. a new layout for the tabs
4. update your main.xml
5. update your activity class
6. update your androidManifest.xml (remove the style declarations)

这三个层可绘制： tab_normal.xml ， tab_focused.xml ， tab_selected。 XML
绘制/ tab_normal.xml

The three layer drawables: 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>

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>

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>

这两个国家可绘制： tab_background_selector.xml ， tab_text_selector.xml
绘制/ tab_background_selector.xml

The two state drawables: tab_background_selector.xml, tab_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>

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>

为标签的新布局： tab.xml
布局/ tab.xml

The new layout for the tabs: 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>

的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">
    <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);
    }
}

这是它。
要建立直走投无路的标签，就失去来自该层绘制XML文件中的角落规格。
同时围绕色彩，笔触等发挥，使成果符合您的preferences。

And this is it.
To create straight cornered tabs, just lose the corner specifications from the layer drawable xml files.
Also play around the colors, strokes, etc., to make the outcome fit your preferences.

这篇关于Android的选项卡tabwidget之间消除空间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！