错误:您的TabHost必须具有一个TabWidget，其id属性为'android.R.id.tabs [英] Error : Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs

问题描述

我是Android的新手，正在开发.我正在使用Tab主机小部件.我正在做的是我制作了3个Java类和相应的xml文件.每个Java类都可以加载其xml.当有人按下选项卡时，它将重定向到上述Java类.请找到我使用的以下代码.现在出现错误，请找到我使用的以下代码.

I'm new to Android and developing. I'm using Tab host widget. What I'm doing is I made 3 Java classes and corresponding xml files. Each Java class can load its xml. When someone presses the tab then it redirects to above Java classes. Please find the below code that I used.Now im getting Errors please find below code I used.

CompareActivity.java

package com.example.comparison.lk;
import android.os.Bundle;
import android.app.ActionBar;
import android.app.Activity;
import android.app.TabActivity;
import android.content.Intent;
import android.graphics.drawable.ColorDrawable;
import android.support.v4.app.NotificationCompat.Action;
import android.view.Menu;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;

import com.tabs.*;

public class CompareActivity extends TabActivity {

    TabHost tabHost;
    Intent intent;
    TabHost.TabSpec spec;
    @Override

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_compare);

        ActionBar actionbr= getActionBar();
        actionbr.setBackgroundDrawable(new ColorDrawable(0XFF1c3c4d));
        intialiseTabWidgets();
        tabHost = getTabHost();
        tabHost.setOnTabChangedListener(new OnTabChangeListener(){
               @Override
               public void onTabChanged(String tabId) {

               }
            });



    }

    public void intialiseTabWidgets()
    {
        //TabHost main_tab=(TabHost)findViewById(R.id.tabhost);
        //main_tab.setup();

        /************* TAB1 ************/
        // Create Intents to launch an Activity for the tab (to be reused)
        intent = new Intent().setClass(this, Login.class);
        spec = tabHost.newTabSpec("First").setIndicator("").setContent(intent);

        // Add intent to tab
        tabHost.addTab(spec);


        /************* TAB2 ************/
        // Create Intents to launch an Activity for the tab (to be reused)
        intent = new Intent().setClass(this, compareNow.class);
        spec = tabHost.newTabSpec("second").setIndicator("").setContent(intent);
        // Add intent to tab
        tabHost.addTab(spec);

        /************* TAB3 ************/
        intent = new Intent().setClass(this, Search.class);
        spec = tabHost.newTabSpec("third").setIndicator("").setContent(intent);
        tabHost.addTab(spec);

    }

comapreNow.java/Login.java/Search.java 所有这些使用相同结构的类

comapreNow.java/Login.java/Search.java all these classes using same stuture

package com.tabs;

import com.example.comparison.lk.R;


import android.app.Activity;
import android.app.TabActivity;


import android.os.Bundle;
import android.widget.TabHost.OnTabChangeListener;


public class compareNow extends TabActivity implements OnTabChangeListener{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_compare);






    }

    @Override
    public void onTabChanged(String tabId) {
        // TODO Auto-generated method stub

    }


} 

activity_compare.xml

<?xml version="1.0" encoding="UTF-8"?>
<FrameLayout 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" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <ImageView
            android:id="@+id/imageView1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:adjustViewBounds="true"
            android:src="@drawable/topbar" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="10dp" >
        </RelativeLayout>

        <TabHost
            android:id="@android:id/tabhost"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >


        </TabHost>

    </LinearLayout>

</FrameLayout>

compare_now.xml/login.xml/search.xml 所有这些文件都具有相同的结构

compare_now.xml/login.xml/search.xml all these files have same stuture

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

</LinearLayout>

AndroidManifest文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.comparison.lk"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"

        android:label="@string/app_name"
        android:theme="@style/AppBaseTheme"

         >
        <activity
            android:name="com.example.comparison.lk.CompareActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

         <activity android:name="com.tabs.compareNow"></activity>
         <activity android:name="com.tabs.Login"></activity>
         <activity android:name="com.tabs.Search"></activity>



    </application>

</manifest>

Logcat错误

 01-23 12:13:08.968: E/AndroidRuntime(27433): FATAL EXCEPTION: main
01-23 12:13:08.968: E/AndroidRuntime(27433): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.comparison.lk/com.example.comparison.lk.CompareActivity}: java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1967)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1992)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.ActivityThread.access$600(ActivityThread.java:127)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1158)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.os.Handler.dispatchMessage(Handler.java:99)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.os.Looper.loop(Looper.java:137)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.ActivityThread.main(ActivityThread.java:4511)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at java.lang.reflect.Method.invokeNative(Native Method)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at java.lang.reflect.Method.invoke(Method.java:511)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:980)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:747)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at dalvik.system.NativeStart.main(Native Method)
01-23 12:13:08.968: E/AndroidRuntime(27433): Caused by: java.lang.RuntimeException: Your TabHost must have a TabWidget whose id attribute is 'android.R.id.tabs'
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.widget.TabHost.setup(TabHost.java:124)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.widget.TabHost.setup(TabHost.java:178)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.TabActivity.onContentChanged(TabActivity.java:135)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:275)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.Activity.setContentView(Activity.java:1835)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at com.example.comparison.lk.CompareActivity.onCreate(CompareActivity.java:25)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.Activity.performCreate(Activity.java:4470)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1052)
01-23 12:13:08.968: E/AndroidRuntime(27433):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1931)
01-23 12:13:08.968: E/AndroidRuntime(27433):    ... 11 more

推荐答案

您在使用xml和public void intialiseTabWidgets()方法时出错

You're having error with xml and public void intialiseTabWidgets() method

xml应更改为:

<?xml version="1.0" encoding="UTF-8"?>
<FrameLayout 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" >

      <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">

                <TabWidget
                    android:id="@android:id/tabs"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                     android:background="#160203" />

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

            </LinearLayout>

        </TabHost>

</FrameLayout>

并使用intialiseTabWidgets()方法的oncreate方法应具有空引用

and use intialiseTabWidgets() method should have null references oncreate method

TabHost tabHost = getTabHost(); 

应更改为

tabHost = getTabHost();

这篇关于错误:您的TabHost必须具有一个TabWidget，其id属性为'android.R.id.tabs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！