PhoneStateHelper.java 文件源码

/**
 * Callback invoked when device service state changes.
 * 
 * @see ServiceState#STATE_EMERGENCY_ONLY
 * @see ServiceState#STATE_IN_SERVICE
 * @see ServiceState#STATE_OUT_OF_SERVICE
 * @see ServiceState#STATE_POWER_OFF
 */
@Override
public void onServiceStateChanged(ServiceState serviceState) {
    if (DBG)
        Log.d(Config.TAG, TAG + "onServiceStateChanged called");
    if (mServiceStage != serviceState.getState()) {
        mServiceStage = serviceState.getState();
        isRoaming = serviceState.getRoaming();
    }
}