TrafficMeterAbstract.java 文件源码

@Override
protected void onAttachedToWindow() {
    super.onAttachedToWindow();
    if (!mAttached) {
        mAttached = true;
        if (DEBUG) log("attached to window");
        IntentFilter filter = new IntentFilter();
        filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
        filter.addAction(ModDownloadProvider.ACTION_DOWNLOAD_STATE_CHANGED);
        getContext().registerReceiver(mIntentReceiver, filter, null, getHandler());

        if (mPhone != null) {
            mPhone.listen(mPhoneStateListener, PhoneStateListener.LISTEN_DATA_CONNECTION_STATE);
        }

        updateState();
    }
}