sensorManager=(SensorManager)getSystemService(context.SENSOR_SERVICE); lightSensor = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); sensorManager.registerListener(sensorListener, lightSensor, SensorManager.SENSOR_DELAY_NORMAL);
try {
Log.i(TAG, "Starting Connectivity Service.");
ServiceManager.addService(Context.CONNECTIVITY_SERVICE, new
ConnectivityService(context));
} catch (Throwable e) {
Log.e(TAG, "Failure starting Connectivity Service", e);
}
if (DBG) Log.v(TAG, "Starting Wifi Service."); mWifiStateTracker = new WifiStateTracker(context, handler); WifiService wifiService = new WifiService(context, mWifiStateTracker); ServiceManager.addService(Context.WIFI_SERVICE, wifiService);
private void initToggles() {
mWifiEnabler = new WifiEnabler(
this,
(WifiManager) getSystemService(WIFI_SERVICE),
(CheckBoxPreference) findPreference(KEY_TOGGLE_WIFI));
private boolean setWifiEnabledBlocking(boolean enable) {
final int eventualWifiState = enable ? WIFI_STATE_ENABLED :WIFI_STATE_DISABLED;
updateWifiState(enable ? WIFI_STATE_ENABLING : WIFI_STATE_DISABLING);
if (enable) {
if (!WifiNative.loadDriver()) {
Log.e(TAG, "Failed to load Wi-Fi driver.");
updateWifiState(WIFI_STATE_UNKNOWN);
return false;
}
if (!WifiNative.startSupplicant()) {
WifiNative.unloadDriver();
Log.e(TAG, "Failed to start supplicant daemon.");
updateWifiState(WIFI_STATE_UNKNOWN);
return false;
}
mWifiStateTracker.startEventLoop();
}
// Success!
persistWifiEnabled(enable);
updateWifiState(eventualWifiState);
return true;
}
private void handleWifiStateChanged(int wifiState) {
if (wifiState == WIFI_STATE_ENABLED) {
loadConfiguredAccessPoints();
attemptScan();
}
static jboolean android_net_wifi_scanCommand(JNIEnv* env, jobject clazz)
{
jboolean result;
// Ignore any error from setting the scan mode.
// The scan will still work.
(void)doBooleanCommand("DRIVER SCAN-ACTIVE", "OK");
result = doBooleanCommand("SCAN", "OK");
(void)doBooleanCommand("DRIVER SCAN-PASSIVE", "OK");
return result;
}
void handleEvent(int event, String remainder) {
case SCAN_RESULTS:
mWifiStateTracker.notifyScanResultsAvailable();
break;
public void onAccessPointSetChanged(AccessPointState ap, boolean added) {
AccessPointPreference pref = mAps.get(ap);
if (added) {
if (pref == null) {
pref = new AccessPointPreference(this, ap);
mAps.put(ap, pref);
} else {
pref.setEnabled(true);
}
mApCategory.addPreference(pref);
}
}
当用户在 WifiSettings 界面上选择了一个 AP 后,会显示配置 AP 参数的一个对话框,
public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
if (preference instanceof AccessPointPreference) {
AccessPointState state = ((AccessPointPreference)preference).getAccessPointState();
showAccessPointDialog(state, AccessPointDialog.MODE_INFO);
}
}
private void handleConnect() {
String password = getEnteredPassword();
if (!TextUtils.isEmpty(password)) {
mState.setPassword(password);
}
mWifiLayer.connectToNetwork(mState);
}
// Need WifiConfiguration for the AP WifiConfiguration config = findConfiguredNetwork(state);
if (config == null) {
// Connecting for the first time, need to create it
config = addConfiguration(state,ADD_CONFIGURATION_ENABLE|ADD_CONFIGURATION_SAVE);
}
// Make sure that network is enabled, and disable others
mReenableApsOnNetworkStateChange = true;
if (!mWifiManager.enableNetwork(state.networkId, true)) {
Log.e(TAG, "Could not enable network ID " + state.networkId);
error(R.string.error_connecting);
return false;
}
void handleEvent(int event, String remainder) {
case CONNECTED:
handleNetworkStateChange(NetworkInfo.DetailedState.CONNECTED,remainder);
break;
private void handleConnectedState() {
setPollTimer();
mLastSignalLevel = -1;
if (!mHaveIPAddress & !mObtainingIPAddress) {
mObtainingIPAddress = true;
mDhcpTarget.obtainMessage(EVENT_DHCP_START).sendToTarget();
}
}
case EVENT_NETWORK_STATE_CHANGED:
if (result.state != DetailedState.DISCONNECTED || !mDisconnectPending) {
intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION);
intent.putExtra(WifiManager.EXTRA_NETWORK_INFO,
mNetworkInfo);
if (result.BSSID != null)
intent.putExtra(WifiManager.EXTRA_BSSID, result.BSSID);
mContext.sendStickyBroadcast(intent);
}
break;
private class DhcpHandler extends Handler {
public void handleMessage(Message msg) {
switch (msg.what) {
case EVENT_DHCP_START:
if (NetworkUtils.runDhcp(mInterfaceName, mDhcpInfo)) {
event = EVENT_DHCP_SUCCEEDED;
}
case EVENT_DHCP_SUCCEEDED: mWifiInfo.setIpAddress(mDhcpInfo.ipAddress); setDetailedState(DetailedState.CONNECTED); intent = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION); intent.putExtra(WifiManager.EXTRA_NETWORK_INFO, mNetworkInfo); mContext.sendStickyBroadcast(intent); break;
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