Android 9 WiFi连接过程

我们从setting 入口开始分析该过程；

1.setting界面 

packages\apps\Settings\src\com\android\settings\wifi\WifiSettings.java 创建Dialog2

@Override
    public Dialog onCreateDialog(int dialogId) {
        switch (dialogId) {
            case WIFI_DIALOG_ID:
                // modify network
                mDialog = WifiDialog2
                        .createModal(getActivity(), this, mDialogWifiEntry, mDialogMode);
                return mDialog;
            default:
                return super.onCreateDialog(dialogId);
        }
    }