将数据发送到Android设备的磨损 [英] Sending data to android wear device

问题描述

我想从我的手机发送一个字符串数组来我穿， 我创建了应该将数据与此code送我的手机服务：

I'm trying to send a String array from my phone to my wear, I've created a service on my phone that is supposed to send the data with this code :

public class SendDataService extends Service {

private static final String TAG = "SendDataService";

@Override
public void onCreate(){
    GoogleApiClient mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
                @Override
                public void onConnected(Bundle connectionHint) {
                    Log.d(TAG, "onConnected: " + connectionHint);
                    // Now you can use the data layer API
                }
                @Override
                public void onConnectionSuspended(int cause) {
                    Log.d(TAG, "onConnectionSuspended: " + cause);
                }
            })
            .addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() {
                @Override
                public void onConnectionFailed(ConnectionResult result) {
                    Log.d(TAG, "onConnectionFailed: " + result);
                }
            })
            .addApi(Wearable.API)
            .build();
    mGoogleApiClient.connect();
    String[] eventStrings = Events.eventsString(Events.readCalendarEvent(this));
    PutDataMapRequest dataMap = PutDataMapRequest.create("/events");
    dataMap.getDataMap().putStringArray("events", eventStrings);
    PutDataRequest request = dataMap.asPutDataRequest();
    PendingResult<DataApi.DataItemResult> pendingResult = Wearable.DataApi
            .putDataItem(mGoogleApiClient, request);
    mGoogleApiClient.disconnect();
}

和从表我设法得到它在我的这个code主要活动：

and from the watch I try to get it in my main activity with this code :

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_agenda_wear);
    this.context = this;
    GoogleApiClient mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
                @Override
                public void onConnected(Bundle connectionHint) {
                    Log.d(TAG, "onConnected: " + connectionHint);
                    // Now you can use the data layer API
                }
                @Override
                public void onConnectionSuspended(int cause) {
                    Log.d(TAG, "onConnectionSuspended: " + cause);
                }
            })
            .addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() {
                @Override
                public void onConnectionFailed(ConnectionResult result) {
                    Log.d(TAG, "onConnectionFailed: " + result);
                }
            })
            .addApi(Wearable.API)
            .build();
    mGoogleApiClient.connect();


    PendingResult<DataItemBuffer> results = Wearable.DataApi.getDataItems(mGoogleApiClient);
    results.setResultCallback(new ResultCallback<DataItemBuffer>() {
        @Override
        public void onResult(DataItemBuffer dataItems) {
            if (dataItems.getCount() != 0) {
                DataMapItem dataMapItem = DataMapItem.fromDataItem(dataItems.get(0));

                // This should read the correct value.
                AgendaWear.this.eventString = dataMapItem.getDataMap().getStringArray("events");
            }

            dataItems.release();
        }
    });
    mGoogleApiClient.disconnect();
    final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
    stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
        @Override
        public void onLayoutInflated(WatchViewStub stub) {
            if (AgendaWear.this.eventString == null){
                Toast.makeText(AgendaWear.this, "No data",Toast.LENGTH_LONG).show();
                AgendaWear.this.eventString = new String[0];
            }
            AgendaWear.listItems = eventArray(AgendaWear.this.eventString);
            mListView = (WearableListView) stub.findViewById(R.id.listView);
            mListView.setAdapter(new MyAdapter(AgendaWear.this));
            mListView.setClickListener(AgendaWear.this);
        }
    });
}

但不幸的是，我总是得到无数据面包和我在这里有点卡住了，我也行＆LT;元数据的android：NAME =com.google.android。 gms.version机器人：值=@整数/ google_play_services_version/＆GT; 双方的磨损和我的应用程序的移动部分，但我似乎并没有得到任何数据。 预先感谢您的帮助

But unfortunately, I always get the "no data" toast and I'm a bit stuck here, I have the line<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> on both the wear and mobile part of my app, but I don't seem to get any data. Thank you in advance for your help

推荐答案

也许我可以帮忙。

这code对我的作品，将一个字符串数组从可穿戴要接收的设备：

This code works for me, sends an array of strings from the device to be received in the wearable:

设备code：

@Override
public void onCreate() {

    googleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(Wearable.API)
            .build();

    googleApiClient.connect();
}    


@Override
public void onConnected(Bundle bundle) {

  String [] myData = new String[]{"data1", "data2", "data3"};
  new DataTask (getActivity(), myData, myListener).execute();
}


class DataTask  extends AsyncTask<Node, Void, Void> {

    private final String[] contents;
    private MyListener myListener;
    Context c;

    public DataTask (Context c, String [] contents, MyListener myListener) {
        this.c = c;
        this.contents = contents;
        this.myListener = myListener;
    }

    @Override
    protected Void doInBackground(Node... nodes) {

        PutDataMapRequest dataMap = PutDataMapRequest.create ("/myapp/myevent");
        dataMap.getDataMap().putStringArray("contents", contents);

        PutDataRequest request = dataMap.asPutDataRequest();

        DataApi.DataItemResult dataItemResult = Wearable.DataApi
                .putDataItem(googleApiClient, request).await();


        Log.d ("[DEBUG] SendDataCoolTask - doInBackground", "/myapp/myevent" status, "+getStatus());
        return null;
    }
}

耐磨code：

Wearable code:

@Override
public void onConnected(Bundle bundle) {

    Wearable.DataApi.addListener(googleApiClient, this);
}

    @Override
public void onDataChanged(DataEventBuffer dataEvents) {

    for (DataEvent event: dataEvents) {

        Log.d("[DEBUG] DeviceService - onDataChanged",
                "Event received: " + event.getDataItem().getUri());

        String eventUri = event.getDataItem().getUri().toString();

        if (eventUri.contains ("/myapp/myevent")) {

            DataMapItem dataItem = DataMapItem.fromDataItem (event.getDataItem());
            String[] data = dataItem.getDataMap().getStringArray("contents");

            Log.d("[DEBUG] DeviceService - onDataChanged", "Sending timeline to the listener");

            myListener.onDataReceived(data);
        }
    }
}

这篇关于将数据发送到Android设备的磨损的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！