intentservice启动新intent失败:找不到

我正在尝试在intentservice中下载一个json文件,下载完成后,我希望启动一个新的活动。此活动有两项任务: -显示带有两个选项的alertDialog:重新启动/不启动 -在onsharedpreferences中保存更新的时间戳

但我一直有一个错误:

08-26 21:31:06.162: W/ActivityManager(96): Unable to start service Intent { cmp=com.hera.ontdekdelft.RESTARTACTIVITY }: not found

当然,我做了很多研究,发现很多人都有这个问题。我想我尝试了大多数给定的解决方案,但似乎没有一个对我有效。

• 我检查了我的清单,我的服务是在应用程序中声明的,而不是在活动中声明的。
• 我试着用不同的方式来表达我的意图:完整的路径( com.hera.ontdekdelft.RESTARTACTIVITY 等等)并且类似于: Intent restartIntent=new Intent(DownloadService.this, RestartActivity.class);

还有一些事情,要么不起作用,要么只会让事情变得更糟。现在发生的事情是,我没有弹出窗口,所以在下次重新启动后,会使用新数据(只有时间戳没有保存,我需要检查可用的更新)。没有崩溃,但没有真正起作用。

有人知道这个问题/看到我失败的地方/有解决方案吗? 谢谢

我的服务:

> import java.io.File; import java.io.FileOutputStream; import
> java.io.IOException; import java.io.InputStream; import
> java.io.InputStreamReader; import java.net.URL;
> 
> import android.app.Activity; import android.app.IntentService; import
> android.content.Intent; import android.net.Uri; import
> android.os.Environment;
> 
> public class DownloadService extends IntentService {
> 
>   private int result = Activity.RESULT_CANCELED;   public String
> strfilename="DelftVenues";   public String foldername;
> 
>   public DownloadService() {
>     super("DownloadService");   }
> 
> 
>   @Override   protected void onHandleIntent(Intent intent) {    File
> dir = new File(Environment.getExternalStorageDirectory() +
> "/testOntdekDelftMap");
>       foldername = dir.toString();
>     
>     
>     
>     
>     Uri data = intent.getData();
>     String urlPath = intent.getStringExtra("urlpath");
>     String fileName = data.getLastPathSegment();
>     File output = new File(foldername,fileName);
>     if (output.exists()) {
>       output.delete();
>     }
> 
>     InputStream stream = null;
>     FileOutputStream fos = null;
>     try {
>         File filename = new File(foldername, strfilename);
>       URL url = new URL(urlPath);
>       stream = url.openConnection().getInputStream();
>       InputStreamReader reader = new InputStreamReader(stream);
>       fos = new FileOutputStream(filename);
>       int next = -1;
>       while ((next = reader.read()) != -1) {
>         fos.write(next);
>       }
>       // Sucessful finished
>       result = Activity.RESULT_OK;
> 
>     } catch (Exception e) {
>       e.printStackTrace();
>     } finally {
>       if (stream != null) {
>         try {
>           stream.close();
>         } catch (IOException e) {
>           e.printStackTrace();
>         }
>       }
>       if (fos != null) {
>         try {
>           fos.close();
>         } catch (IOException e) {
>           e.printStackTrace();
>         }
>       }
>     }
>     
>     System.out.println("result: "+ result);
>     Intent restartIntent=new Intent(DownloadService.this, RestartActivity.class);
>     this.startService(restartIntent);
>     
>     
>        } }

我要启动的类(restartActivity)

public class RestartActivity extends Activity{

     public String UPDATE_TIMESTAMP;
     AlertDialog restartDialog;


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


        restartDialog= new AlertDialog.Builder(RestartActivity.this).create();  
        String title, text, button1,button2;
        String language =  Locale.getDefault().getISO3Language();
        if (language.equals("nld")){
            title= "Herstarten?";
            text= "De update is voltooid. Wilt u de applicatie nu opnieuw opstarten?";
            button1="Ja";
            button2="Nee";
        }else{
            title="Restart?";
            text= "The application has been updated. Do you wish to restart now?";
            button1="Yes";
            button2="No";
        }
        restartDialog.setTitle(title);  
        restartDialog.setMessage(text);  
        restartDialog.setButton(button1, new DialogInterface.OnClickListener() {  
          public void onClick(DialogInterface dialog, int which) {  
          // restart applicatino
                Intent intent = new Intent(RestartActivity.this, StartUp.class);
                // Create a new Messenger for the communication back
                startService(intent);
            }
        });
        restartDialog.setButton2(button2, new DialogInterface.OnClickListener() {  
              public void onClick(DialogInterface dialog, int which) {  
                   finish();
                  return;

              }
            });
        restartDialog.show();

        int timestampNow=(int) (System.currentTimeMillis()/1000);
        setLastUpdateTimeStamp(timestampNow);

    }

    // timestamp opslaan
    public void setLastUpdateTimeStamp(int timestamp){
         SharedPreferences savedTimeStamp = getSharedPreferences(UPDATE_TIMESTAMP, MODE_PRIVATE);
          SharedPreferences.Editor editor = savedTimeStamp.edit();
          editor.putInt("timestamp", timestamp);

          // Commit the edits!
          editor.commit();

    }

}

我的一份清单:

// lot more activities

             <activity
    android:name=".RestartActivity"
    android:label="@string/app_name" >
    <intent-filter>
        <action android:name="com.hera.ontdekdelft.RESTARTACTIVITY" />
        <category android:name="android.intent.category.DEFAULT" />
    </intent-filter>
</activity>


 <service android:name=".DownloadService" >
        </service>



    </application>

</manifest>