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DelayedConfirmation / Application / src / com.example.android.wearable.delayedconfirmation /

MainActivity.java

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/*
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 * Copyright (C) 2014 The Android Open Source Project
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *      http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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package com.example.android.wearable.delayedconfirmation;
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import android.app.Activity;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.widget.Toast;
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import com.google.android.gms.common.ConnectionResult;
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import com.google.android.gms.common.api.GoogleApiClient;
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import com.google.android.gms.common.api.ResultCallback;
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import com.google.android.gms.wearable.MessageApi;
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import com.google.android.gms.wearable.MessageEvent;
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import com.google.android.gms.wearable.Node;
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import com.google.android.gms.wearable.NodeApi;
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import com.google.android.gms.wearable.Wearable;
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/**
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 * Has a single button, used to start the Wearable MainActivity.
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 */
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public class MainActivity extends Activity implements MessageApi.MessageListener,
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        GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
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    private static final String TAG = "DelayedConfirmation";
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    private static final String START_ACTIVITY_PATH = "/start-activity";
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    private static final String TIMER_SELECTED_PATH = "/timer_selected";
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    private static final String TIMER_FINISHED_PATH = "/timer_finished";
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    private GoogleApiClient mGoogleApiClient;
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    @Override
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    public void onCreate(Bundle b) {
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        super.onCreate(b);
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        setContentView(R.layout.main_activity);
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        mGoogleApiClient = new GoogleApiClient.Builder(this)
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                .addApi(Wearable.API)
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                .addConnectionCallbacks(this)
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                .addOnConnectionFailedListener(this)
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                .build();
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    }
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    @Override
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    protected void onResume() {
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        super.onResume();
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        if (!mGoogleApiClient.isConnected()) {
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            mGoogleApiClient.connect();
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        }
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    }
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    @Override
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    protected void onDestroy() {
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        if (mGoogleApiClient.isConnected()) {
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            mGoogleApiClient.disconnect();
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        }
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        super.onDestroy();
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    }
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    @Override
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    public void onConnected(Bundle bundle) {
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        Wearable.MessageApi.addListener(mGoogleApiClient, this);
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    }
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    @Override
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    public void onConnectionSuspended(int i) {
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        Wearable.MessageApi.removeListener(mGoogleApiClient, this);
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    }
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    @Override
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    public void onMessageReceived(final MessageEvent messageEvent) {
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        runOnUiThread(new Runnable() {
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            @Override
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            public void run() {
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                if (messageEvent.getPath().equals(TIMER_SELECTED_PATH)) {
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                    Toast.makeText(getApplicationContext(), R.string.toast_timer_selected,
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                            Toast.LENGTH_SHORT).show();
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                } else if (messageEvent.getPath().equals(TIMER_FINISHED_PATH)) {
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                    Toast.makeText(getApplicationContext(), R.string.toast_timer_finished,
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                            Toast.LENGTH_SHORT).show();
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                }
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            }
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        });
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    }
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    @Override
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    public void onConnectionFailed(ConnectionResult connectionResult) {
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        Log.e(TAG, "Failed to connect to Google Api Client with error code "
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                + connectionResult.getErrorCode());
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    }
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    /**
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     * Sends a message to Wearable MainActivity when button is pressed.
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     */
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    public void onStartWearableActivityClick(View view) {
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        Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).setResultCallback(
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                new ResultCallback<NodeApi.GetConnectedNodesResult>() {
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                    @Override
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                    public void onResult(NodeApi.GetConnectedNodesResult getConnectedNodesResult) {
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                        for (final Node node : getConnectedNodesResult.getNodes()) {
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                            Wearable.MessageApi.sendMessage(mGoogleApiClient, node.getId(),
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                                    START_ACTIVITY_PATH, new byte[0]).setResultCallback(
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                                    getSendMessageResultCallback());
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                        }
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                    }
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                });
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    }
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    private ResultCallback<MessageApi.SendMessageResult> getSendMessageResultCallback() {
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        return new ResultCallback<MessageApi.SendMessageResult>() {
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            @Override
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            public void onResult(MessageApi.SendMessageResult sendMessageResult) {
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                if (!sendMessageResult.getStatus().isSuccess()) {
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                    Log.e(TAG, "Failed to connect to Google Api Client with status "
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                            + sendMessageResult.getStatus());
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                }
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            }
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        };
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    }
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}
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