我正在尝试创建多个标签,每个标签都有不同的活动。唯一的缺点是我使用的是自定义布局文件,因此我的类扩展了Activity而不是TabActivity
。在尝试运行时,它失败并建议调用TabHost.Setup(ActivityGroupManager agm)
任何人都有一个如何实现这一目标的想法/实际例子?
提前致谢
答案 0 :(得分:6)
这是我的活动样本,也没有从TabActivity扩展:
protected TabHost tabs;
// ...
/**
* Init tabs.
*/
private void initTabs() {
tabs = (TabHost) findViewById(R.id.tabhost);
tabs.setup();
tabs.setBackgroundResource(R.drawable.bg_midgray);
TabHost.TabSpec spec;
// Location info
txtTabInfo = new TextView(this);
txtTabInfo.setText("INFO");
txtTabInfo.setPadding(0, 0, 0, 0);
txtTabInfo.setTextSize(14);
txtTabInfo.setBackgroundResource(R.drawable.bg_tab_left_inactive_right_inactive);
txtTabInfo.setTextColor(Color.DKGRAY);
txtTabInfo.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.TOP);
txtTabInfo.setHeight(39);
spec = tabs.newTabSpec("tabInfo");
spec.setContent(R.id.tabInfo);
spec.setIndicator(txtTabInfo);
tabs.addTab(spec);
// Maps
txtTabMap = new TextView(this);
txtTabMap.setText("MAP");
txtTabMap.setTextSize(14);
txtTabMap.setPadding(0, 0, 0, 0);
txtTabMap.setBackgroundResource(R.drawable.bg_tab_middle_inactive_right_active);
txtTabMap.setTextColor(Color.DKGRAY);
txtTabMap.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.TOP);
txtTabMap.setHeight(39);
spec = tabs.newTabSpec("tabMap");
spec.setContent(R.id.tabMap);
spec.setIndicator(txtTabMap);
tabs.addTab(spec);
tabs.setCurrentTab(0);
tabs.setOnTabChangedListener(this);
}
// ...
答案 1 :(得分:2)
首先,在主布局中定义一个frametab。
<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" android:padding="5dp">
<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" android:padding="5dp">
</framelayout>
</tabwidget>
</linearlayout>
</tabhost>
然后,创建一个从TabActivity扩展的活动
Resources res = getResources();
TabHost tabHost = getTabHost();
TabHost.TabSpec spec;
Intent intent;
intent = new Intent().setClass(this, DashboardActivity.class);
spec = tabHost.newTabSpec("home").setIndicator("Home", res.getDrawable (R.drawable.ic_tab_dashboard)).setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, CreditCardActivity.class);
spec = tabHost.newTabSpec("sample1").setIndicator("Sample Tab",res.getDrawable (R.drawable.ic_tab_sample1)).setContent(intent);
tabHost.addTab(spec);
如果要滚动标签,请使用选择器布局:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/helpblue" android:state_selected="true">
<item android:drawable="@drawable/helpgray"></item>
</item></selector>
以下是截图示例。
alt text http://rayyildiz.com/wp-content/uploads/2010/06/android_sample_tab-201x300.png alt text http://rayyildiz.com/wp-content/uploads/2010/06/android_sample_tab2-201x300.png
答案 2 :(得分:1)
制作一个扩展TabActivity
的附加类,并将该类作为主要活动。
要在XML清单中执行此操作,您需要包含:
<activity android:name=".TabActivtyClass" android:label="@string/app_name"
android:theme="@android:style/Theme.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
在这堂课中你会写一些类似的东西:
public class TabActivtyClass extends TabActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TabHost tabHost = getTabHost(); // The associated TabHost
// Create an Intent to launch given Activty for this tab
Intent i = new Intent().setClass(this, FirstActivty.class);
TabHost.TabSpec spec = tabHost.newTabSpec("tab_name").setIndicator("Tab Name").setContent(i); // <- references the intent we just created
tabHost.addTab(spec);
// And do the same for the other tabs ...
}
}
这个TabActivty类可以像你想的那样大或小,但通常它是全屏,每个标签的Activity被加载到屏幕的主要部分,如下所示:
Example http://developer.android.com/resources/tutorials/views/images/hello-tabwidget.png
P.S。另请注意,Eclipse布局编辑器不适用于Tabs。它是a bug which has already been logged。