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android - 如何自定义 android 选项卡或背景更改?

转载 作者:IT老高 更新时间:2023-10-28 23:38:18 26 4
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我对安卓很陌生。现在我构建了一个小应用程序。

我需要在 2.2 中更改 android 默认查找的外观。因此,在这里我尝试更改选项卡的背景。你能帮我做那件事吗?

我喜欢使用 xml/style 的方式。

这就是我需要的实际输出。

Tabs

最佳答案

您的标签主机 XML 文件

TabHost

<?xml version="1.0" encoding="utf-8"?> 
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
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">

<TabWidget android:id="@android:id/tabs"
android:layout_width="fill_parent" android:layout_height="wrap_content" />
<FrameLayout android:id="@android:id/tabcontent"
android:layout_width="fill_parent" android:layout_height="fill_parent">
</FrameLayout>

</LinearLayout>

</TabHost>

在您的主要 Activity 中

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

mTabHost = (TabHost) findViewById(android.R.id.tabhost);

setupTab(new TextView(this), "Tab 1");
setupTab(new TextView(this), "Tab 2");
setupTab(new TextView(this), "Tab 3");
}

private void setupTab(final View view, final String tag) {
View tabview = createTabView(mTabHost.getContext(), tag);
TabSpec setContent = mTabHost.newTabSpec(tag).setIndicator(tabview).setContent(new TabContentFactory() {
public View createTabContent(String tag) {
return view;
}
});
mTabHost.addTab(setContent);
}

private static View createTabView(final Context context, final String text) {
View view = LayoutInflater.from(context).inflate(R.layout.tabs_bg, null);
TextView tv = (TextView) view.findViewById(R.id.tabsText);
tv.setText(text);
return view;
}

CustomTabsLayout tabs_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/tabsLayout" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:background="@drawable/tab_bg_selector"
android:padding="10dip" android:gravity="center" android:orientation="vertical">

<TextView android:id="@+id/tabsText" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:text="Title"
android:textSize="15dip" android:textColor="@drawable/tab_text_selector" />
</LinearLayout>

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="@android:color/white" />
<item android:state_focused="true" android:color="@android:color/white" />
<item android:state_pressed="true" android:color="@android:color/white" />
<item android:color="#f8f8f8" />
</selector>

tab_bg_selector

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Active tab -->
<item android:state_selected="true" android:state_focused="false"
android:state_pressed="false" android:drawable="@drawable/tab_bg_selected" />
<!-- Inactive tab -->
<item android:state_selected="false" android:state_focused="false"
android:state_pressed="false" android:drawable="@drawable/tab_bg_unselected" />
<!-- Pressed tab -->
<item android:state_pressed="true" android:drawable="@android:color/transparent" />
<!-- Selected tab (using d-pad) -->
<item android:state_focused="true" android:state_selected="true"
android:state_pressed="false" android:drawable="@android:color/transparent" />
</selector>

tab_bg_selected.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#A8A8A8" android:centerColor="#7F7F7F"
android:endColor="#696969" android:angle="-90" />
</shape>

tab_bg_unselected.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#5C5C5C" android:centerColor="#424242"
android:endColor="#222222" android:angle="-90" />
</shape>

最后在你的主要 Activity 类中

mTabHost.getTabWidget().setDividerDrawable(R.drawable.tab_divider);

然后完成:)

关于android - 如何自定义 android 选项卡或背景更改?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17897351/

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