强制关闭我的tabhost

Question

为什么我的代码中有错误？我在同一个包中调用两个类。一个是扩展Activity的“BatteryInformation.java”，其功能是获取Battery Info，另一个是扩展Activity的“TaskKiller.java”，其功能是杀死正在运行的应用程序。这两个类没有错误，我运行它没有这个用户界面，它运作良好。你能帮我么？

public class BatteryDoctorSaverActivity extends Activity { 
    TabHost tabHost; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     tabHost = (TabHost) findViewById(R.id.tabhost); 

     // Resources res = getResources(); // Resource object to get Drawables 
     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, BatteryInformation.class); 

     // Initialize a TabSpec for each tab and add it to the TabHost 
     spec = tabHost.newTabSpec("Battery Information").setIndicator("") 
       .setContent(intent); 
     tabHost.addTab(spec); 

     // Do the same for the other tabs 
     intent = new Intent().setClass(this, TaskKiller.class); 
     spec = tabHost.newTabSpec("Task Killer").setIndicator("TaskKiller") 
       .setContent(intent); 
     tabHost.addTab(spec); 
      tabHost.setCurrentTab(0); 

    } 
} 

这里是logcat的：

01-23 10:30:55.949: D/AndroidRuntime(12278): Shutting down VM 
01-23 10:30:55.949: W/dalvikvm(12278): threadid=1: thread exiting with uncaught exception (group=0x40018578) 
01-23 10:30:55.949: E/AndroidRuntime(12278): FATAL EXCEPTION: main 
01-23 10:30:55.949: E/AndroidRuntime(12278): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=batterydoctorsaver.thesis.BatteryInformation } 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1409) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1379) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.app.Activity.startActivityForResult(Activity.java:2827) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.app.Activity.startActivity(Activity.java:2933) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at batterydoctorsaver.thesis.BatteryDoctorSaverActivity$1.onClick(BatteryDoctorSaverActivity.java:22) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.view.View.performClick(View.java:2485) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.view.View$PerformClick.run(View.java:9080) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.os.Handler.handleCallback(Handler.java:587) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.os.Handler.dispatchMessage(Handler.java:92) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.os.Looper.loop(Looper.java:130) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at android.app.ActivityThread.main(ActivityThread.java:3687) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at java.lang.reflect.Method.invokeNative(Native Method) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at java.lang.reflect.Method.invoke(Method.java:507) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625) 
01-23 10:30:55.949: E/AndroidRuntime(12278): at dalvik.system.NativeStart.main(Native Method) 

谁能帮助我与此有关。我与这个用户界面差不多2天。我不知道该怎么做。请帮帮我。感谢您的帮助:)

@Lucifer这里是我的AndroidManifest.xml文件：

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

    <uses-sdk android:minSdkVersion="10" /> 

    <application 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" > 
     <activity 
      android:label="@string/app_name" 
      android:name=".BatteryDoctorSaverActivity" > 
      <intent-filter > 
       <action android:name="android.intent.action.MAIN" /> 

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

    <activity 
     android:label="@string/app_name" 
     android:name=".BatteryInformation" > 
     <intent-filter > 
      <action android:name="android.intent.action.MAIN" /> 

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

    <!-- <activity android:name = ".BatteryInformation"/> --> 

</manifest> 

@Lucifer这里的先生：

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

    <uses-sdk android:minSdkVersion="10" /> 

    <application 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" > 
     <activity 
      android:label="@string/app_name" 
      android:name=".BatteryDoctorSaverActivity" > 
      <intent-filter > 
       <action android:name="android.intent.action.MAIN" /> 

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

</manifest> 

这里是我在5月BatterDoctorSaverActivity.java代码：

package batterydoctorsaver.thesis; 

import android.app.TabActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.widget.TabHost; 
import batterydoctorsaver.thesis.BatteryInformation; 
import batterydoctorsaver.thesis.TaskKiller; 

public class BatteryDoctorSaverActivity extends TabActivity { 
    TabHost tabHost; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     tabHost = getTabHost(); 
     tabHost.setup(); 
     tabHost.addTab(tabHost.newTabSpec("tab1") 
       .setIndicator("Battery Information") 
       .setContent(new Intent(this, BatteryInformation.class))); 
     tabHost.addTab(tabHost.newTabSpec("tab2").setIndicator("Task Killer") 
       .setContent(new Intent(this, TaskKiller.class))); 

     // tabHost.addTab(tabHost.newTabSpec("tab3").setIndicator("Updates").setContent(
     // new Intent(this, DownloadList.class))); 

    } 
} 

Answer 1

您需要将您的活动添加到您的AndroidManifest.xml文件中。所有活动都必须具有该文件的条目。

删除此行从您的代码，

<activity 
     android:label="@string/app_name" 
     android:name=".BatteryInformation" > 
     <intent-filter > 
      <action android:name="android.intent.action.MAIN" /> 

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

改用以下行。

<activity> android:name=.BatteryInformation />