Put Object data from Service to Activity

Question

i am trying to use Intent Service to parse data from mysql and put it to main activity.

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());
    }

}
}

When i run my code, Logcat is

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

    }
 }

`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` please show the class for `Parameter` — EpicPandaForce, Apr 22 '15 at 08:28
It looks like your `Parameter` class doesn't properly implement `Parcelable` — Dreagen, Apr 22 '15 at 08:29
i added class Parameter, this class was implemented Parcelable — Lê Khánh Đạt, Apr 22 '15 at 08:36

score 0 · Accepted Answer · answered Apr 22 '15 at 08:45

Modified Parameter class with CREATOR. Check this link for more details. Remember while writing to parcel and reading to parcel order of writing and reading parameters should be same else it will not work.

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
    }
}

Thanks for your help @Rajen, Do you know any other way to put object Parameter to activity by intent? — Lê Khánh Đạt, Apr 22 '15 at 08:58
check this http://stackoverflow.com/a/10335227/3831557. you can create ResultReceiver in activity and pass to intentservice. — Rajen Raiyarela, Apr 22 '15 at 09:02

Put Object data from Service to Activity

1 Answers1