学步园

要求：在Settings应用添加直接勾选“打开“或”关闭“移动网络

。

1.PreferenceActivity

( 1)实现系统设置界面

WirelessSettings.java

把extends Activity改为extends PreferenceActivity
。然后把java文件中的setContentView(R.layout.main);改为addPreferencesFromResource(R.xml.preferences);

public class WirelessSettings extends PreferenceActivity {<br /> @Override<br /> protected void onCreate(Bundle savedInstanceState) {<br /> super.onCreate(savedInstanceState);<br /> addPreferencesFromResource(R.xml.wireless_settings);<br /> ...<br /> }<br /> private void initToggles() {<br /> mG3Enabler = new G3Enabler(this, (WifiManager) getSystemService(WIFI_SERVICE), PhoneFactory.getDefaultPhone(),(CheckBoxPreference) G3EnablePreference);<br /> }<br /> }

G3Enabler.java

当PreferenceActivity中的内容改变时，Android系统会自动进行保存和持久化维护，我们只需要在要用的设置界面中数据的地方进行读取就可以了。同时Android还提供了OnPreferenceClickListener和OnPreferenceChangeListener
两个与Preference相关的监听接口，当PreferenceActivity中的某一个Preference进行了点击或者改变
的操作时，都会回调接口中的函数，这样可以第一个时间向其他Activity等通知系统设置进行了改变。

public class G3Enabler implements Preference.OnPreferenceChangeListener {<br /> public boolean onPreferenceChange(Preference preference, Object value) {<br /> ...<br /> }<br /> }

WirelessSettings.xml

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"><br /> ...<br /> <CheckBoxPreference<br /> android:key="toggle_3g"<br /> android:title="@string/network_title"<br /> android:summary="@string/network_summary"<br /> android:persistent="false"<br /> /><br /> ...<br /> </PreferenceScreen>

ListPreference是一个常用的用来进行设置操作的标签。

array.xml

2.G3Enabler

G3Enabler.java

private ITelephony mPhoneService;

//使用aidl，与电话服务进程通信，这里用作打开数据连接 和 断开数据连接

mPhoneService = ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));

//打开网络...
 boolean state = m
PhoneService.enableDataConnectivity();  
 

//断开网络...

mPhoneService.disableDataConnectivity();

/*<br /> * Copyright (C) 2007 The Android Open Source Project<br /> *<br /> * Licensed under the Apache License, Version 2.0 (the "License");<br /> * you may not use this file except in compliance with the License.<br /> * You may obtain a copy of the License at<br /> *<br /> * http://www.apache.org/licenses/LICENSE-2.0<br /> *<br /> * Unless required by applicable law or agreed to in writing, software<br /> * distributed under the License is distributed on an "AS IS" BASIS,<br /> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<br /> * See the License for the specific language governing permissions and<br /> * limitations under the License.]<br /> *<br /> * newttl zhangyun<br /> */<br /> package com.android.settings;<br /> import com.android.internal.telephony.ITelephony;<br /> import com.android.internal.telephony.Phone;<br /> import com.android.internal.telephony.PhoneFactory;<br /> import com.android.internal.telephony.gsm.SimCard;<br /> import com.android.internal.telephony.IccCard;<br /> import com.android.internal.telephony.ModemPowerTracker;<br /> import com.android.settings.R;<br /> import com.android.internal.telephony.TelephonyIntents;<br /> import android.telephony.ServiceState;<br /> import com.android.internal.telephony.DataConnectionTracker;<br /> import java.io.RandomAccessFile;<br /> import android.content.BroadcastReceiver;<br /> import android.content.Context;<br /> import android.content.Intent;<br /> import android.content.IntentFilter;<br /> import android.net.NetworkInfo;<br /> import android.preference.Preference;<br /> import android.preference.CheckBoxPreference;<br /> import android.provider.Settings;<br /> import android.text.TextUtils;<br /> import android.util.Config;<br /> import android.util.Log;<br /> import android.os.Handler;<br /> import android.os.Message;<br /> import java.io.File;<br /> import java.io.FileNotFoundException;<br /> import java.io.FileOutputStream;<br /> import java.io.IOException;<br /> import java.io.InputStreamReader;<br /> import java.io.PrintWriter;<br /> import android.os.ServiceManager;<br /> import android.os.SystemProperties;<br /> import android.net.wifi.WifiManager;<br /> import android.content.Intent;<br /> import android.content.ContentResolver;<br /> import android.content.Context;<br /> import android.content.Intent;<br /> import android.content.IntentFilter;<br /> import android.media.AudioManager;<br /> import android.os.Bundle;<br /> import android.os.IMountService;<br /> import android.os.RemoteException;<br /> import android.os.ServiceManager;<br /> import android.content.DialogInterface;<br /> import android.app.AlertDialog;<br /> import android.app.Dialog;<br /> import android.widget.Toast;<br /> public class G3Enabler implements Preference.OnPreferenceChangeListener {<br /> enum ConnectStatus {<br /> DISCONNECT, WAIT_DEV, INIT_DEV, CONNECTING, CONNECTED, CONNECT_FAILED;<br /> };<br /> private static ConnectStatus connectStatus = ConnectStatus.DISCONNECT;</p> <p> private ITelephony mPhoneService;</p> <p> //定义广播接收器，及广播处理函数onReceive<br /> private final BroadcastReceiver mG3StateReceiver = new BroadcastReceiver() {<br /> @Override<br /> public void onReceive(Context context, Intent intent) {<br /> log("receive intent: "+intent.getAction());<br /> if (intent.getAction().equals(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED)) {<br /> Phone.DataState state = getDataState(intent);<br /> String reason = intent.getStringExtra(Phone.STATE_CHANGE_REASON_KEY);<br /> String apnName = intent.getStringExtra(Phone.DATA_APN_KEY);<br /> boolean unavailable = intent.getBooleanExtra(Phone.NETWORK_UNAVAILABLE_KEY, false);<br /> switch (state) {<br /> case DISCONNECTED:<br /> //更新UI<br /> break;</p> <p> case CONNECTING:<br /> //更新UI<br /> break;</p> <p> case SUSPENDED:<br /> //更新UI<br /> break;</p> <p> case CONNECTED:<br /> //更新UI<br /> break;<br /> }<br /> } else if (intent.getAction().equals(TelephonyIntents.ACTION_DATA_CONNECTION_FAILED)) {<br /> String reason = intent.getStringExtra(Phone.FAILURE_REASON_KEY);<br /> Log.d(TAG, "[DataStateReceiver](ACTION_DATA_CONNECTION_FAILED)Received " + intent.getAction() + " broadcast" +reason == null ? "" : "(" + reason + ")");<br /> gprsconnected = false;<br /> }else if (intent.getAction().equals(TelephonyIntents.ACTION_SERVICE_STATE_CHANGED)){<br /> Log.d(TAG, "[DataStateReceiver](ACTION_SERVICE_STATE_CHANGED)");<br /> mServiceState = ServiceState.newFromBundle(intent.getExtras());<br /> }<br /> }<br /> };</p> <p> private static Phone.DataState getDataState(Intent intent) {<br /> String str = intent.getStringExtra(Phone.STATE_KEY);<br /> if (str != null)<br /> return Enum.valueOf(Phone.DataState.class, str);<br /> else<br /> return Phone.DataState.DISCONNECTED;<br /> }</p> <p> public G3Enabler(Context context, WifiManager wifiManager, Phone phone, CheckBoxPreference g3CheckBoxPreference) {<br /> log("[G3Enabler](Constructor)");<br /> mContext = context;<br /> mG3EnableCheckBoxPref = g3CheckBoxPreference;<br /> mOriginalSummary = g3CheckBoxPreference.getSummary();<br /> g3CheckBoxPreference.setPersistent(false);<br /> mWifiManager = wifiManager;<br /> mPhone = phone;<br /> //使用aidl，与电话服务进程通信，这里用作打开数据连接 和 断开数据连接<br /> mPhoneService = ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));</p> <p> //该应用组件那能响应的广播类型<br /> mG3StateFilter = new IntentFilter(TelephonyIntents.ACTION_ANY_DATA_CONNECTION_STATE_CHANGED);<br /> mG3StateFilter.addAction(TelephonyIntents.ACTION_SERVICE_STATE_CHANGED);<br /> mG3StateFilter.addAction(TelephonyIntents.ACTION_DATA_CONNECTION_FAILED);</p> <p> }<br /> public void resume() {<br /> log("[resume]");<br /> //注册广播接收器<br /> mContext.registerReceiver(mG3StateReceiver, mG3StateFilter);<br /> //为Preference注册监听接口<br /> mG3EnableCheckBoxPref.setOnPreferenceChangeListener(this);<br /> }<br /> public void pause() {<br /> log("[pause]");<br /> mContext.unregisterReceiver(mG3StateReceiver);<br /> mG3EnableCheckBoxPref.setOnPreferenceChangeListener(null);<br /> }<br /> public void destroy() {<br /> log("[destroy]");<br /> dismissDialog();<br /> }</p> <p> public boolean onPreferenceChange(Preference preference, Object value) {<br /> if( (Boolean) value ){<br /> ...<br /> //打开网络...<br /> boolean state = mPhoneService.enableDataConnectivity();<br /> ...<br /> }else{<br /> ...<br /> //断开网络...<br /> mPhoneService.disableDataConnectivity();<br /> ...<br /> }</p> <p> return true;<br /> }<br /> }<br />

3.拨号脚本

(1) eference-ril.c

static int create_misc_file(const char* dev, const char* b, const char* user, const char* password, const char *authType,const char* apn,const char* dialup)<br /> {<br /> FILE* fd = 0;<br /> char wstring[512] = {0};<br /> char * tmp;<br /> LOGD("create file: /etc/ppp/peers/peer");<br /> fd = fopen("/etc/ppp/peers/peer", "w+");<br /> if(fd == 0)<br /> goto error;<br /> sprintf(wstring, "%s/n",dev);<br /> asprintf(&tmp, "%s/n",b);<br /> strcat(wstring,tmp);<br /> strcat(wstring, "crtscts/n");<br /> strcat(wstring, "local/n");<br /> strcat(wstring, "debug/n");<br /> strcat(wstring, "usepeerdns/n");<br /> strcat(wstring, "nodetach/n");<br /> strcat(wstring, "ipcp-accept-local/n");<br /> strcat(wstring, "ipcp-accept-remote/n");<br /> strcat(wstring, "defaultroute/n");<br /> if(user[0] != 0)<br /> {<br /> strcat(wstring, "user /"");<br /> strcat(wstring, user);<br /> strcat(wstring, "/"/n");<br /> }<br /> if(password[0] != 0)<br /> {<br /> strcat(wstring, "password /"");<br /> strcat(wstring, password);<br /> strcat(wstring, "/"/n");<br /> }<br /> strcat(wstring, "connect '/system/bin/chat -v -f /etc/ppp/chat/connect'/n");<br /> // strcat(wstring, "disconnect '/system/bin/chat -v -f /etc/ppp/chat/disconnect'/n");<br /> fwrite(wstring, 1, strlen(wstring), fd);<br /> fclose(fd);<br /> LOGD("create file: /etc/ppp/chat/connect");<br /> fd = fopen("/etc/ppp/chat/connect", "w+");<br /> if(fd == 0)<br /> goto error; </p> <p> sprintf(wstring, "TIMEOUT 60/n");<br /> strcat(wstring, "ABORT 'BUSY'/n");<br /> strcat(wstring, "ABORT 'NO CARRIER'/n");<br /> strcat(wstring,"ABORT 'NO ANSWER'/n");<br /> strcat(wstring, "ABORT 'ERROR'/n");<br /> strcat(wstring, "ABORT '+CME ERROR: 100'/n");</p> <p> strcat(wstring, "/"/" AT/n");<br /> asprintf(&tmp, "OK AT+CGDCONT=1,/"IP/",/"%s/",/"/",0,0/n",apn);<br /> strcat(wstring,tmp);<br /> strcat(wstring, "OK AT+CGEQREQ=1,2,128,2048,0,0,0,0,/"0E0/",/"0E0/",,0,0/n");<br /> asprintf(&tmp, "OK %s/n",dialup); // ATD*98*1#<br /> strcat(wstring,tmp);<br /> strcat(wstring, "CONNECT/n");<br /> fwrite(wstring, 1, strlen(wstring), fd);<br /> fclose(fd);<br /> /*<br /> LOGD("create file: /etc/ppp/chat/disconnect");<br /> fd = fopen("/etc/ppp/chat/disconnect", "w+");<br /> if(fd == 0)<br /> goto error;<br /> sprintf(wstring,"ECHO ON/n");<br /> strcat(wstring,"ABORT /"BUSY/"/n");<br /> strcat(wstring, "ABORT /"ERROR/"/n");<br /> strcat(wstring, "ABORT /"NO DIALTONE/"/n");<br /> strcat(wstring,"/"/" ATH /n");<br /> strcat(wstring,"OK AT/n");<br /> strcat(wstring,"OK ATE0V1/n");<br /> strcat(wstring,"OK AT/n");<br /> asprintf(&tmp,"OK AT+CGDCONT=1,/"IP/",/"%s/",,0,0/n",apn);<br /> strcat(wstring,tmp);<br /> strcat(wstring,"OK ATS0");<br /> fwrite(wstring, 1, strlen(wstring), fd);<br /> fclose(fd);<br /> */<br /> return 0;<br /> error:<br /> fclose(fd);<br /> return -1;<br /> }

错误：以上代码中 strcat(wstring, "/"/" AT/n"); 应该改为 strcat(wstring, "/"/" /rAT/n");

create_misc_file函数的作用是生成拨号脚本（/etc/ppp/peers/peer、/etc/ppp/chat/connect、/etc/ppp/chat/disconnect）

(2) 拨号脚本 - /etc/ppp/chat/connect

TIMEOUT 120<br /> ABORT "BUSY"<br /> ABORT "NO CARRIER"<br /> ABORT "NO ANSWER"<br /> ABORT "NO DIALTONE"<br /> ABORT "RINGING"<br /> " /rAT<br /> OK AT+CGDCONT=1,"IP","CMNET","",0,0<br /> OK ATD*98*1#

(3) 拨号脚本 - /etc/ppp/chat/disconnect

给Modern发送/K和ATH分别是什么作用？

[参考]

http://janseling.blog.163.com/blog/static/126653852201011152910167/

http://jianxiaza.blog.163.com/blog/static/8768562820101120111049565/

http://hi.baidu.com/uncolll/blog/item/919e8165289338fcf6365438.html