我正在尝试为Android手机和磨损实现基本的天气应用程序。应用程序从Web API获取数据，然后将其显示在手机上。现在，如果应用程序在Wear上打开，然后在电话上打开它，它会同步两者的天气。如果你改变手机上的天气，它也会改变磨损。我想让磨损应用程序在你打开磨损应用程序的时候通过手机获取天气，我试图通过消息“ping”手机然后手机通过数据图发送信息来实现这一点。虽然手机说它已经发送了数据图，但是除了磨损没有从手机接收数据图之外，这是有效的。
穿戴主要活动：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_data_map);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
mTextView = (TextView) stub.findViewById(R.id.text);
sendMessage("Ping");
Log.i("OnLayoutInflated","LAYOUT INFLATED");
}
});
setAmbientEnabled();
// Register the local broadcast receiver
IntentFilter messageFilter = new IntentFilter(Intent.ACTION_SEND);
MessageReceiver messageReceiver = new MessageReceiver();
LocalBroadcastManager.getInstance(this).registerReceiver(messageReceiver, messageFilter);
}
@Override
protected void onPause() {
super.onPause();
if (wearCommsManager.isConnected()) {
wearCommsManager.disconnectClient();
}
}
@Override
protected void onResume() {
super.onResume();
if (wearCommsManager == null) {
wearCommsManager = new WearCommsManager(this);
}
if (messageSender == null) {
messageSender = new WearMessageSender(wearCommsManager);
}
verifyCommsConnection();
}
protected void sendMessage(final String message) {
AsyncTask<Void, Void, Void> task = new AsyncTask<Void, Void, Void>() {
@Override
protected Void doInBackground(Void... params) {;
messageSender.processRequest(message);
return null;
}
};
task.execute();
}
private void verifyCommsConnection() {
new WearCommsManager(this).verifyCommsConnection(new WearCommsManager.CommsCallback() {
@Override
public void onSuccess() {
}
@Override
public void onFailure() {
Log.e("ERROR","CONNECTION FAILED");
}
});
}
public class MessageReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Bundle data = intent.getBundleExtra("datamap");
// Display received data in UI
String display =
data.getString("city") + "\n" +
data.getString("temperature") + "\n" +
data.getString("wind_speed") + "\n" +
data.getString("cloud_percent")+"\n"+
data.getString("lastupdate");
mTextView.setText(display);
}
}
佩戴听众：
public class ListenerService extends WearableListenerService{
private static final String WEARABLE_DATA_PATH = "/wearable_data";
@Override
public void onCreate() {
super.onCreate();
}
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
DataMap dataMap;
for (DataEvent event : dataEvents) {
Log.v("myTag", "DataMap received on watch: " + DataMapItem.fromDataItem(event.getDataItem()).getDataMap());
// Check the data type
if (event.getType() == DataEvent.TYPE_CHANGED) {
// Check the data path
String path = event.getDataItem().getUri().getPath();
if (path.equals(WEARABLE_DATA_PATH)) {}
dataMap = DataMapItem.fromDataItem(event.getDataItem()).getDataMap();
// Broadcast DataMap contents to wearable activity for display
// The content has the golf hole number and distances to the front,
// middle and back pin placements.
Intent messageIntent = new Intent();
messageIntent.setAction(Intent.ACTION_SEND);
messageIntent.putExtra("datamap", dataMap.toBundle());
LocalBroadcastManager.getInstance(this).sendBroadcast(messageIntent);
}
}
}
}
电话主要活动：
public class DataMapActivity extends AppCompatActivity implements
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener{
private TextView cityName;
private TextView temp;
private ImageView iconView;
private TextView description;
private TextView humidity;
private TextView pressure;
private TextView wind;
private TextView sunrise;
private TextView sunset;
private TextView updated;
Weather weather = new Weather();
GoogleApiClient googleClient;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_data_map);
cityName = (TextView) findViewById(R.id.cityText);
iconView = (ImageView) findViewById(R.id.thumbnailIcon);
temp = (TextView) findViewById(R.id.tempText);
description = (TextView) findViewById(R.id.CloudText);
humidity = (TextView) findViewById(R.id.HumidText);
pressure = (TextView) findViewById(R.id.PressureText);
wind = (TextView) findViewById(R.id.WindText);
sunrise = (TextView) findViewById(R.id.RiseText);
sunset = (TextView) findViewById(R.id.SetText);
updated = (TextView) findViewById(R.id.UpdateText);
CityPreference cityPreference=new CityPreference(DataMapActivity.this);
System.out.println(cityPreference.getCity());
renderWeatherData(cityPreference.getCity());
IntentFilter messageFilter = new IntentFilter(Intent.ACTION_SEND);
MessageReceiver messageReceiver = new MessageReceiver();
LocalBroadcastManager.getInstance(this).registerReceiver(messageReceiver, messageFilter);
// Build a new GoogleApiClient for the the Wearable API
googleClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}
public void renderWeatherData(String city) {
WeatherTask weatherTask = new WeatherTask();
weatherTask.execute(new String[]{city + "&units=metric"});
}
private class WeatherTask extends AsyncTask<String, Void, Weather> {
@Override
protected Weather doInBackground(String... params) {
String data = ((new WeatherHttpClient()).getWeatherData(params[0]));
System.out.println(data);
weather = JSONParser.getWeather(data);
return weather;
}
@Override
protected void onPostExecute(Weather weather) {
super.onPostExecute(weather);
if(weather.currentCondition.getIcon() != null){
new DownloadImageAsyncTask().execute(weather.currentCondition.getIcon());
}
cityName.setText(weather.place.getCity() + "," + weather.place.getCountry());
temp.setText("" + (int)weather.currentCondition.getTemperature() + "°C");
wind.setText("Wind Speed: " + weather.wind.getSpeed()+"m/s" + " Degree: " + weather.wind.getDegree());
description.setText("Clouds: " + weather.clouds.getPrecipitation() + "%, " + weather.currentCondition.getDescription());
pressure.setText("Pressure: " + weather.currentCondition.getPressure()+"hpa");
humidity.setText("Humidity: " + weather.currentCondition.getHumidity()+"%");
Date mydate = new Date(weather.place.getSunrise() * 1000);
SimpleDateFormat dateformat = new SimpleDateFormat("HH:mm");
dateformat.setTimeZone(TimeZone.getTimeZone("GMT+3"));
String date = dateformat.format(mydate);
sunrise.setText("Sunrise: " + date);
mydate = new Date(weather.place.getSunset() * 1000);
date = dateformat.format(mydate);
sunset.setText("Sunset: " + date);
mydate = new Date(weather.place.getLastupdate() * 1000);
dateformat = new SimpleDateFormat("dd.MM.yyyy, HH:mm, z");
dateformat.setTimeZone(TimeZone.getDefault());
date = dateformat.format(mydate);
updated.setText("Last Updated: " + date);
sendWear();
//This part synchronizes perfectly with wear
}
}
private void sendWear(){
String WEARABLE_DATA_PATH = "/wear_data";
// Create a DataMap object and send it to the data layer
DataMap dataMap = new DataMap();
dataMap.putString("lastupdate", updated.getText().toString());
dataMap.putString("city", cityName.getText().toString());
dataMap.putString("temperature", temp.getText().toString());
dataMap.putString("wind_speed", wind.getText().toString());
dataMap.putString("cloud_percent", description.getText().toString());
//Requires a new thread to avoid blocking the UI
new SendToDataLayerThread(WEARABLE_DATA_PATH, dataMap).start();
}
public class MessageReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String s= intent.getStringExtra("Pinger");
if(s!=null) {
new SendToWearAsyncTask().execute();
}
}
}
private class SendToWearAsyncTask extends AsyncTask<Void,Void,Void>{
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
sendWear();
//this part wear doesn't receive the datamap
}
@Override
protected Void doInBackground(Void... params) {
return null;
}
}
答案 0 :(得分：0)
确保移动和佩戴应用的build.gradle中的applicationID相同。另外，请确保两个应用中的buildTypes部分和signingConfigs部分相同。 Source.您还可以发送Long.toString(System.currentTimeMillis())以验证每次都更改。