Source code
package android.support.v4.os;
import android.os.Bundle;
import android.os.Handler;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.Parcelable.Creator;
import android.os.RemoteException;
import android.support.v4.os.IResultReceiver.Stub;
public class ResultReceiver implements Parcelable {
public static final Creator<ResultReceiver> CREATOR = new Creator<ResultReceiver>() {
public ResultReceiver createFromParcel(Parcel in) {
return new ResultReceiver(in);
}
public ResultReceiver[] newArray(int size) {
return new ResultReceiver[size];
}
};
final Handler mHandler;
final boolean mLocal;
IResultReceiver mReceiver;
class MyRunnable implements Runnable {
final int mResultCode;
final Bundle mResultData;
MyRunnable(int resultCode, Bundle resultData) {
this.mResultCode = resultCode;
this.mResultData = resultData;
}
public void run() {
ResultReceiver.this.onReceiveResult(this.mResultCode, this.mResultData);
}
}
class MyResultReceiver extends Stub {
MyResultReceiver() {
}
public void send(int resultCode, Bundle resultData) {
if (ResultReceiver.this.mHandler != null) {
ResultReceiver.this.mHandler.post(new MyRunnable(resultCode, resultData));
} else {
ResultReceiver.this.onReceiveResult(resultCode, resultData);
}
}
}
public ResultReceiver(Handler handler) {
this.mLocal = true;
this.mHandler = handler;
}
public void send(int resultCode, Bundle resultData) {
if (this.mLocal) {
if (this.mHandler != null) {
this.mHandler.post(new MyRunnable(resultCode, resultData));
} else {
onReceiveResult(resultCode, resultData);
}
} else if (this.mReceiver != null) {
try {
this.mReceiver.send(resultCode, resultData);
} catch (RemoteException e) {
}
}
}
protected void onReceiveResult(int resultCode, Bundle resultData) {
}
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel out, int flags) {
synchronized (this) {
if (this.mReceiver == null) {
this.mReceiver = new MyResultReceiver();
}
out.writeStrongBinder(this.mReceiver.asBinder());
}
}
ResultReceiver(Parcel in) {
this.mLocal = false;
this.mHandler = null;
this.mReceiver = Stub.asInterface(in.readStrongBinder());
}
}