Android Wear控制PPT播放软件的开发
成型软件：http://dev.360.cn/mod/mobileapp/?qid=157816976&appid=202350521
这次开发是以http://www.oschina.net/news/53042的代码为蓝本进行开发的，特此感谢，。
主要内容为对手机端进行改造，加入手表端。电脑上的服务端不需修改，可以直接使用。
手机端由一个Activity和一个Service组成
手机端的一个Activity，目的是设置服务端IP地址和端口号。在设置完成后会ping一次电脑，结果会在LOG中显示，大家可以根据自己的需要进行改造。两个EditText为ip地址跟端口，按钮是确认和ping。
public class MobileActivity extends ActionBarActivity {
public static String ipnum;
public static int scoketnum;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_mobile);
final EditText ip = (EditText) findViewById(R.id.ip);
final EditText num = (EditText) findViewById(R.id.num);
final Button OK = (Button) findViewById(R.id.OK);
OK.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ipnum = ip.getText().toString();
scoketnum = Integer.parseInt(num.getText().toString());
try {
System.out.println(ping(ipnum));
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
}
public String ping(String m_strForNetAddress) throws IOException, InterruptedException {//ping测试
Process p = Runtime.getRuntime().exec("ping -c 1 " + m_strForNetAddress);//m_strForNetAddress是输入的网址或者Ip地址
int status = p.waitFor(); //status 只能获取是否成功，无法获取更多的信息
if (status == 0) {
return "success";
} else {
return "failed";
}
}
}手机端的服务代码，作用仅仅是将手表的信息转发到电脑的服务端：
public class DataLayerListenerService extends WearableListenerService {
private static final String TAG = "DataLayerSample";
private static final String DATA_ITEM_RECEIVED_PATH = "/data-item-received";
private DatagramSocket socket;
GoogleApiClient mGoogleApiClient;
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
Log.d(TAG, "onDataChanged！！！ ");
try {
socket = new DatagramSocket();
} catch (SocketException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
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);
}
})
// Request access only to the Wearable API
.addApi(Wearable.API)
.build();
GoogleApiClient googleApiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.build();
ConnectionResult connectionResult =
googleApiClient.blockingConnect(30, TimeUnit.SECONDS);
if (!connectionResult.isSuccess()) {
Log.e(TAG, "Failed to connect to GoogleApiClient.");
return;
}
// Loop through the events and send a message
// to the node that created the data item.
for (DataEvent event : dataEvents) {
Uri uri = event.getDataItem().getUri();
if (event.getType() == DataEvent.TYPE_CHANGED) {
DataMap dataMap = DataMapItem.fromDataItem(event.getDataItem()).getDataMap();
if (event.getDataItem().getUri().getPath().equals("/ijz-con")) {
String content = dataMap.get("content");
if (!content.equals("")) {
sendMessage(content);
Log.d("TAG", content);
}
}
// Get the node id from the host value of the URI
String nodeId = uri.getHost();
// Set the data of the message to be the bytes of the URI
byte[] payload = uri.toString().getBytes();
// Send the RPC
Wearable.MessageApi.sendMessage(googleApiClient, nodeId,
DATA_ITEM_RECEIVED_PATH, payload);
}
}
if (!mGoogleApiClient.isConnected())
mGoogleApiClient.connect();
}
private void sendMessage(String str) {
try {
// 首先创建一个DatagramSocket对象
// 创建一个InetAddree
InetAddress serverAddress = InetAddress.getByName(MobileActivity.ipnum);
byte data[] = str.getBytes();
// 创建一个DatagramPacket对象，并指定要讲这个数据包发送到网络当中的哪个地址，以及端口号
DatagramPacket packet = new DatagramPacket(data, data.length,
serverAddress, MobileActivity.scoketnum);
// 调用socket对象的send方法，发送数据
socket.send(packet);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
手表端只有一个Activity，两个按钮，分别是上和下，对应的是电脑的向上键和向下键
public class WearActivity extends Activity implements DataApi.DataListener, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
GoogleApiClient mGoogleAppiClient;
private TextView mTextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mGoogleAppiClient = new GoogleApiClient.Builder(this)
.addApi(Wearable.API)
.build();
setContentView(R.layout.activity_wear);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);//屏幕常亮
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);
Button up = (Button) findViewById(R.id.up);
Button down = (Button) findViewById(R.id.down);
up.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendTextToPhone("keyboard:key,Up,click");//发送点击上键
sendTextToPhone("");
}
});
down.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
sendTextToPhone("keyboard:key,Down,click");//发送点击下键
sendTextToPhone("");
}
});
}
});
Wearable.DataApi.addListener(mGoogleAppiClient, this);
}
private void sendTextToPhone(String content) {
PutDataMapRequest dataMap = PutDataMapRequest.create("/ijz-con");
dataMap.getDataMap().putString("content", content);
PutDataRequest request = dataMap.asPutDataRequest();
PendingResult pendingResult = Wearable.DataApi
.putDataItem(mGoogleAppiClient, request);
pendingResult.setResultCallback(new ResultCallback() {
@Override
public void onResult(DataApi.DataItemResult result) {
if (result.getStatus().isSuccess())
Log.e("tag", "success");
}
});
}
@Override
protected void onStart() {
Log.d("TAG", "开始");
mGoogleAppiClient.connect();
super.onStart();
}
@Override
protected void onStop() {
Log.d("TAG", "stop");
if (null != mGoogleAppiClient && mGoogleAppiClient.isConnected()) {
Wearable.DataApi.removeListener(mGoogleAppiClient, this);
mGoogleAppiClient.disconnect();
}
super.onStop();
}
@Override
public void onConnected(Bundle arg0) {
Log.d("TAG", "connected");
}
@Override
public void onConnectionSuspended(int arg0) {
// TODO Auto-generated method stub
Log.d("TAG", "ConnectionSuspended");
}
@Override
public void onConnectionFailed(ConnectionResult arg0) {
// TODO Auto-generated method stub
Log.d("TAG", "ConnectionFailed");
}
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
}
} 需要在手机端声明联网权限
两端都不要忘记在Manifest中注册gms，因为手表和手机的通信需要谷歌框架！