Поместить данные объекта из службы в действие

Question

Я пытаюсь использовать службу Intent для анализа данных из mysql и поместить его в основное действие.

MyTestService.java

public class MyTestService extends IntentService { 

public MyTestService() { 
    super("MyTestService"); 
    // TODO Auto-generated constructor stub 
} 

@Override 
protected void onHandleIntent(Intent intent) { 
    Parameter result = downloadData(); 
    Log.d("msg", result.toString()); 
    Intent in = new Intent(); 
    in.setAction(Receiver.ACTION_RESP); 
    in.addCategory(Intent.CATEGORY_DEFAULT); 
    in.putExtra("123", (Parcelable) result); 
    sendBroadcast(in); 

} 

private Parameter downloadData() { 
    Parameter parameter = new Parameter(); 
    String data = (new LandSlideHttpClient()).getDeviceData(); 
    try { 
     parameter = JSONLandslideParser.getParameter(data); 
    } catch (Exception e) { 

    } 
    return parameter; 
} 

}

MainActivity.java

public class MainActivity extends ActionBarActivity { 
private Receiver receiver; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    IntentFilter filter = new IntentFilter(Receiver.ACTION_RESP); 
    filter.addCategory(Intent.CATEGORY_DEFAULT); 
    receiver = new Receiver(); 
    registerReceiver(receiver, filter); 
    Intent intent = new Intent(this, MyTestService.class); 
    startService(intent); 
} 

@Override 
protected void onPause() { 
    // TODO Auto-generated method stub 
    super.onPause(); 
    unregisterReceiver(receiver); 
} 
public class Receiver extends BroadcastReceiver { 

    public static final String ACTION_RESP = "abcdef"; 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     Parameter result = (Parameter) intent.getParcelableExtra("123"); 
     TextView textView = (TextView) findViewById(R.id.textview); 
     textView.setText(result.id.getID()); 
    } 

} 
} 

Когда я запускаю мой код, Logcat является

04-22 04:14:32.512: E/AndroidRuntime(4472): java.lang.RuntimeException: Error receiving broadcast Intent { act=abcdef cat=[android.intent.category.DEFAULT] flg=0x10 (has extras) } in com.example.testservice.MainActivity$Receiver@416fd1c0 

>04-22 04:14:32.512: E/AndroidRuntime(4472): at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:773 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Handler.handleCallback(Handler.java:730) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Handler.dispatchMessage(Handler.java:92) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Looper.loop(Looper.java:137) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.app.ActivityThread.main(ActivityThread.java:5103) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at java.lang.reflect.Method.invoke(Method.java:525) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at dalvik.system.NativeStart.main(Native Method) 
04-22 04:14:32.512: E/AndroidRuntime(4472): Caused by: android.os.BadParcelableException: Parcelable protocol requires a Parcelable.Creator object called CREATOR on class com.example.testservice.Parameter 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Parcel.readParcelableCreator(Parcel.java:2114) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Parcel.readParcelable(Parcel.java:2055) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Parcel.readValue(Parcel.java:1971) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Parcel.readMapInternal(Parcel.java:2255) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Bundle.unparcel(Bundle.java:223) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.os.Bundle.getParcelable(Bundle.java:1170) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.content.Intent.getParcelableExtra(Intent.java:4501) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at com.example.testservice.MainActivity$Receiver.onReceive(MainActivity.java:59) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:763) 
04-22 04:14:32.512: E/AndroidRuntime(4472):  ... 9 more 

Parameter.java

public class Parameter implements Parcelable{ 

    public class currentData { 
     private float temp; 
     private float acc; 
     private float moisture; 
     private float battery; 
     private String date; 
     private String time; 

     public float getTemp() { 
      return temp; 
     } 

     public void setTemp(float temp) { 
      this.temp = temp; 
     } 

     public float getAcc() { 
      return acc; 
     } 

     public void setAcc(float acc) { 
      this.acc = acc; 
     } 

     public float getMoisture() { 
      return moisture; 
     } 

     public void setMoisture(float moisture) { 
      this.moisture = moisture; 
     } 

     public float getBattery() { 
      return battery; 
     } 

     public void setBattery(float battery) { 
      this.battery = battery; 
     } 

     public String getTime() { 
      return time; 
     } 

     public void setTime(String time) { 
      this.time = time; 
     } 

     public String getDate() { 
      return date; 
     } 

     public void setDate(String date) { 
      this.date = date; 
     } 

    } 

    public class ID { 
     private String ID; 

     public String getID() { 
      return ID; 
     } 

     public void setID(String iD) { 
      ID = iD; 
     } 
    } 

    public ID id = new ID(); 
    public currentData currentData = new currentData(); 

    @Override 
    public int describeContents() { 
     // TODO Auto-generated method stub 
     return 0; 
    } 

    @Override 
    public void writeToParcel(Parcel dest, int flags) { 
     // TODO Auto-generated method stub 

    } 
} 

Answer 1

Измененный класс параметров с CREATOR. Проверьте это link для более подробной информации. Помните, что при письме на посылку и чтении в посылочный порядок написания и чтения параметры должны быть такими же, но это не сработает.

public class Parameter implements Parcelable{ 

    public class currentData { 
     private float temp; 
     private float acc; 
     private float moisture; 
     private float battery; 
     private String date; 
     private String time; 

     public float getTemp() { 
     return temp; 
     } 

     public void setTemp(float temp) { 
     this.temp = temp; 
     } 

     public float getAcc() { 
     return acc; 
     } 

     public void setAcc(float acc) { 
     this.acc = acc; 
     } 

     public float getMoisture() { 
     return moisture; 
     } 

     public void setMoisture(float moisture) { 
     this.moisture = moisture; 
     } 

     public float getBattery() { 
     return battery; 
     } 

     public void setBattery(float battery) { 
     this.battery = battery; 
     } 

     public String getTime() { 
     return time; 
     } 

     public void setTime(String time) { 
     this.time = time; 
     } 

     public String getDate() { 
     return date; 
     } 

     public void setDate(String date) { 
     this.date = date; 
     } 

    } 

    public class ID { 
     private String ID; 

     public String getID() { 
     return ID; 
     } 

     public void setID(String iD) { 
     ID = iD; 
     } 
    } 

    public ID id = new ID(); 
    public currentData currentData = new currentData(); 

    @Override 
    public int describeContents() { 
     // TODO Auto-generated method stub 
     return 0; 
    } 

    @Override 
    public void writeToParcel(Parcel dest, int flags) { 
     // Implement your code to write data to parcel 


    } 

    //This is required for creating parcealable 
    public static final Parcelable.Creator<Parameter> CREATOR = new Creator<Parameter>() { 

     @Override 
     public Parameter[] newArray(int size) { 
      return new Parameter[size]; 
     } 

     @Override 
     public Parameter createFromParcel(Parcel source) { 
      return new Parameter(source); 
     } 
    }; 

    public Parameter (Parcel source){ 
     // Implement your code to read data from parcel 
    } 
}