Android 带GoogleapClient的GPS跟踪器

在谷歌服务的上一次更新中，谷歌取消了LocationClient api，现在说使用GoogleAppClient

现在需要创建应用程序与GPS报告任何30秒到我的网络服务器，但没有找到或不了解如何工作这个新的api

如果您有使用GoogleAppClient的示例，请通过链接查看或下载

如果有GoogleAppClient的服务，请通过链接

感谢您的帮助。

如果您已经安装了android sdk，那么只需签出以下目录\extras\google\google\u play\u services\samples\maps\src\com\example\mapdemo\

它有一个在GoogleMap中显示当前位置的示例，它使用GoogleAppClient以5秒的周期间隔检索当前位置，如以下代码所述。您可以根据自己的要求进行修改

MyLocationDemoActivity.java

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我也有同样的问题。您需要明确使用GoogleMap.setLocationSource

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下面是一个示例：

我发现GoogleMap使用自己的位置提供程序，而不是FusedLocationProvider，因此您需要明确调用GoogleMap.setLocationSource来替换它。以下是一个例子：

    public class MyLocationDemoActivity extends FragmentActivity
        implements
        ConnectionCallbacks,
        OnConnectionFailedListener,
        LocationListener,
        OnMyLocationButtonClickListener {

    private GoogleMap mMap;

    private GoogleApiClient mGoogleApiClient;
    private TextView mMessageView;

    // These settings are the same as the settings for the map. They will in fact give you updates
    // at the maximal rates currently possible.
    private static final LocationRequest REQUEST = LocationRequest.create()
            .setInterval(5000)         // 5 seconds
            .setFastestInterval(16)    // 16ms = 60fps
            .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.my_location_demo);
        mMessageView = (TextView) findViewById(R.id.message_text);
    }

    @Override
    protected void onResume() {
        super.onResume();
        setUpMapIfNeeded();
        setUpGoogleApiClientIfNeeded();
        mGoogleApiClient.connect();
    }

    @Override
    public void onPause() {
        super.onPause();
        if (mGoogleApiClient != null) {
            mGoogleApiClient.disconnect();
        }
    }

    private void setUpMapIfNeeded() {
        // Do a null check to confirm that we have not already instantiated the map.
        if (mMap == null) {
            // Try to obtain the map from the SupportMapFragment.
            mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
                    .getMap();
            // Check if we were successful in obtaining the map.
            if (mMap != null) {
                mMap.setMyLocationEnabled(true);
                mMap.setOnMyLocationButtonClickListener(this);
            }
        }
    }

    private void setUpGoogleApiClientIfNeeded() {
        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addApi(LocationServices.API)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .build();
        }
    }

    /**
     * Button to get current Location. This demonstrates how to get the current Location as required
     * without needing to register a LocationListener.
     */
    public void showMyLocation(View view) {
        if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
            String msg = "Location = "
                    + LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
            Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_SHORT).show();
        }
    }

    /**
     * Implementation of {@link LocationListener}.
     */
    @Override
    public void onLocationChanged(Location location) {
        mMessageView.setText("Location = " + location);
    }

    /**
     * Callback called when connected to GCore. Implementation of {@link ConnectionCallbacks}.
     */
    @Override
    public void onConnected(Bundle connectionHint) {
        LocationServices.FusedLocationApi.requestLocationUpdates(
                mGoogleApiClient,
                REQUEST,
                this);  // LocationListener
    }

    /**
     * Callback called when disconnected from GCore. Implementation of {@link ConnectionCallbacks}.
     */
    @Override
    public void onConnectionSuspended(int cause) {
        // Do nothing
    }

    /**
     * Implementation of {@link OnConnectionFailedListener}.
     */
    @Override
    public void onConnectionFailed(ConnectionResult result) {
        // Do nothing
    }

    @Override
    public boolean onMyLocationButtonClick() {
        Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT).show();
        // Return false so that we don't consume the event and the default behavior still occurs
        // (the camera animates to the user's current position).
        return false;
    }
}