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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.os;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.SystemApi;
/**
* @hide
*/
@SystemApi
public final class RemoteCallback implements Parcelable {
public interface OnResultListener {
public void onResult(Bundle result);
}
private final OnResultListener mListener;
private final Handler mHandler;
private final IRemoteCallback mCallback;
public RemoteCallback(OnResultListener listener) {
this(listener, null);
}
public RemoteCallback(@NonNull OnResultListener listener, @Nullable Handler handler) {
if (listener == null) {
throw new NullPointerException("listener cannot be null");
}
mListener = listener;
mHandler = handler;
mCallback = new IRemoteCallback.Stub() {
@Override
public void sendResult(Bundle data) {
RemoteCallback.this.sendResult(data);
}
};
}
RemoteCallback(Parcel parcel) {
mListener = null;
mHandler = null;
mCallback = IRemoteCallback.Stub.asInterface(
parcel.readStrongBinder());
}
public void sendResult(@Nullable final Bundle result) {
// Do local dispatch
if (mListener != null) {
if (mHandler != null) {
mHandler.post(new Runnable() {
@Override
public void run() {
mListener.onResult(result);
}
});
} else {
mListener.onResult(result);
}
// Do remote dispatch
} else {
try {
mCallback.sendResult(result);
} catch (RemoteException e) {
/* ignore */
}
}
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel parcel, int flags) {
parcel.writeStrongBinder(mCallback.asBinder());
}
public static final Parcelable.Creator<RemoteCallback> CREATOR
= new Parcelable.Creator<RemoteCallback>() {
public RemoteCallback createFromParcel(Parcel parcel) {
return new RemoteCallback(parcel);
}
public RemoteCallback[] newArray(int size) {
return new RemoteCallback[size];
}
};
}
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