我收到“您必须指定创建选项卡指示器的方法”错误(根据 logcat)。找不到原因。
主类:
package org.tatvamoksh.tml;
import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
@SuppressWarnings({ "deprecation" })
public class MainActivity extends TabActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Remove title bar
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
TabHost tabHost = getTabHost();
// Tab for Tatva
TabSpec t = tabHost.newTabSpec("Tatva");
// setting Title and Icon for the Tab
t.setIndicator("Tatva");
Intent tatvaIntent = new Intent(this, TatvaActivity.class);
t.setContent(tatvaIntent);
// Tab for Moksh
TabSpec m = tabHost.newTabSpec("Moksh");
m.setIndicator("Moksh");
Intent mokshIntent = new Intent(this, MokshActivity.class);
m.setContent(mokshIntent);
//Tab for Updates
TabSpec u = tabHost.newTabSpec("Updates");
m.setIndicator("Updates");
Intent updatesIntent = new Intent(this, Updates.class);
m.setContent(updatesIntent);
// Adding all TabSpec to TabHost
tabHost.addTab(t); // Adding Tatva tab
tabHost.addTab(m); // Adding Moksh tab
tabHost.addTab(u); // Adding Updates tab
}
}
布局文件:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<TabHost
android:id="@android:id/tabhost"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<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="wrap_content" />
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="match_parent" >
</ListView>
</FrameLayout>
</LinearLayout>
</TabHost>
</RelativeLayout>
注释掉以下代码可以修复它。
//Tab for Updates
TabSpec u = tabHost.newTabSpec("Updates");
m.setIndicator("Updates");
Intent updatesIntent = new Intent(this, Updates.class);
m.setContent(updatesIntent);
我猜不出确切的问题。将不胜感激任何指导。