/******************************************************************************
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*
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* Copyright (C) 2013-2014 Cypress Semiconductor
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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package com.rockchip.smart.rockhome;
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import android.app.Activity;
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import android.app.ListFragment;
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import android.content.Context;
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import android.graphics.Color;
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import android.net.wifi.WifiManager;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.BaseAdapter;
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import android.widget.ImageView;
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import android.widget.ListView;
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import android.widget.TextView;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* UI component to allow users to scan for Bluetooth LE devices and pick a
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* selected device *
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*/
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public class WifiListFragment extends ListFragment {
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private static final String TAG = "WifiListFragment";
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/**
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* Interface to listen for results
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*/
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public static interface WifiCallback {
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public void onWifiPicked(WifiInfo info);
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public void onWifiPickCancelled();
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}
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/**
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* Helper class used for displaying LE devices in a pick list
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*/
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public static class WifiAdapter extends BaseAdapter {
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private final Context mContext;
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private List<WifiInfo> mWifis;
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private final LayoutInflater mInflater;
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public WifiAdapter(Context context) {
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mContext = context;
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mInflater = LayoutInflater.from(context);
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mWifis = new ArrayList<WifiInfo>();
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}
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public void update(List<WifiInfo> wifis) {
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mWifis = wifis;
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notifyDataSetChanged();
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}
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@Override
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public int getCount() {
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return mWifis.size();
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}
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@Override
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public Object getItem(int position) {
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return mWifis.get(position);
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}
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@Override
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public long getItemId(int position) {
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return position;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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ViewHolder holder;
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if (convertView == null || convertView.findViewById(R.id.ssid) == null) {
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convertView = mInflater.inflate(R.layout.dialog_wifilist_item, null);
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holder = new ViewHolder();
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holder.ssid = (TextView) convertView.findViewById(R.id.ssid);
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holder.level = (ImageView) convertView.findViewById(R.id.wifi_level);
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convertView.setTag(holder);
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} else {
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holder = (ViewHolder) convertView.getTag();
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}
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WifiInfo rec = mWifis.get(position);
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holder.ssid.setText(rec.getSsid());
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if (rec.isConnecting()) {
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holder.ssid.setTextColor(Color.BLUE);
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}
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int level= WifiManager.calculateSignalLevel(Integer.parseInt(rec.getSignalLevel()), 5);
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if(rec.getFlags() == null || rec.getFlags().contains("WEP") || rec.getFlags().contains("PSK") || rec.getFlags().contains("EAP")){
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holder.level.setImageResource(R.drawable.wifi_signal_lock);
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}else{
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holder.level.setImageResource(R.drawable.wifi_signal_open);
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}
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holder.level.setImageLevel(level);
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return convertView;
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}
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static class ViewHolder {
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TextView ssid;
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ImageView level;
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}
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}
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private WifiAdapter mWifiAdapter;
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private WifiCallback mCallback;
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private boolean mDevicePicked;
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/**
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* Set the callback object to invoke when a device is picked OR if the
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* device picker is cancelled
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*
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* @param cb
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*/
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public void setCallback(WifiCallback cb) {
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mCallback = cb;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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Activity activity = getActivity();
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// Otherwise populate the list device
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mWifiAdapter = new WifiAdapter(activity);
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setListAdapter(mWifiAdapter);
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}
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@Override
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public void onListItemClick(ListView list, View view, int position, long id) {
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WifiInfo wifi = (WifiInfo) mWifiAdapter.getItem(position);
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if (wifi != null && mCallback != null) {
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try {
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mDevicePicked = true;
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mCallback.onWifiPicked(wifi);
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} catch (Throwable t) {
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Log.w(TAG, "onListItemClick: error calling callback", t);
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}
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}
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}
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@Override
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public void onResume() {
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super.onResume();
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Log.d("BlueFragment", "WifiListFragment onResume");
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}
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@Override
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public void onPause() {
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super.onPause();
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Log.d("BlueFragment", "WifiListFragment onPause");
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if (!mDevicePicked && mCallback != null)
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mCallback.onWifiPickCancelled();
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}
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public void scan(boolean enable) {
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scan(enable, null);
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}
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/**
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* Start or stop scanning for LE devices
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*
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* @param enable
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*/
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public void scan(boolean enable, List<WifiInfo> wifiList) {
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if (enable && wifiList != null) {
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mWifiAdapter.update(wifiList);
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}
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getActivity().invalidateOptionsMenu();
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}
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}
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