android 控制设备网络接入点
项目需要使用cmwap来接入网络 ：
1. 判断当前设备是否有网络接入（有那么检测是什么接入方式【wifi? cmnet？ cmwap?】）
2. 如果没有任何接入那么 强制使用GPRS数据接入
2.1 如果强制数据接入后为cmnet接入那么还需要强制转换为cmwap接入
2.2 如果强制数据接入后为cmwap那么不做任何操作
3. 如果当前设备为wifi接入那么关闭wifi强制GPRS数据接入【有cmnet和cmwap 两种】
3.1 如果强制数据接入后为cmnet接入那么还需要强制转换为cmwap接入
3.2 如果强制数据接入后为cmwap那么不做任何操作
4. 如果当前为GPRS数据接入那么判断是cmnet还是cmwap
4.1 如果为cmnet接入那么强制转换为cmwap接入
4.2 如果强制数据接入后为cmwap那么不做任何操作
代码实现如下：
package com.c;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class C extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/**
* @author zc*
* @data 2013-04-18*
* @param context*
* 判断当前设备接入网络类型 -1:无网络接入；1：wifi接入；2：cmwap接入；3：cmnet接入
* */
NetworkUtils networkUtils = new NetworkUtils(this);
int apntype = networkUtils.getAPNType(this);
switch (apntype) {
case -1:
//强制数据连接后有cmnet和cmwap
networkUtils.setGprsEnabled("setMobileDataEnabled", true);
Toast.makeText(this, "当前设备未连接网络开始强制数据连接", Toast.LENGTH_LONG).show();
apntype = networkUtils.getAPNType(this);
if(apntype==3)
{
//如果强制接入的为cmnet那么执行强转为cmwap
networkUtils.deletecmnet();
}
break;
case 1:
networkUtils.setWifi(false);
networkUtils.setGprsEnabled("setMobileDataEnabled", true);
Toast.makeText(this, "当前wifi接入关闭wifi强制启动数据连接", Toast.LENGTH_LONG).show();
apntype = networkUtils.getAPNType(this);
if(apntype==3)
{
//如果强制接入的为cmnet那么执行强转为cmwap
networkUtils.deletecmnet();
}
break;
case 2:
Toast.makeText(this, "当前cmwap接入无需操作", Toast.LENGTH_LONG).show();
break;
case 3:
Toast.makeText(this, "当前cmnet接入强制转换为cmwap", Toast.LENGTH_LONG).show();
networkUtils.deletecmnet();
break;
default:
break;
}
Button bt = (Button) findViewById(R.id.bt1);
bt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Uri uri = Uri.parse("http://m.10086.cn/s3/channnel/cr/600902000008654943/0026291/0001/");
Intent it = new Intent(Intent.ACTION_VIEW, uri);
startActivity(it);
}
});
}
}
package com.c;
import java.lang.reflect.Method;
import android.content.ContentResolver;
import android.content.Context;
import android.database.SQLException;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.net.wifi.WifiManager;
public class NetworkUtils {
private static Context context;
protected static Uri APN_LIST_URI;
private static ConnectivityManager mCM;
public NetworkUtils(Context c){
this.context=c;
// APN列表资源
this.APN_LIST_URI = Uri.parse("content://telephony/carriers");
}
/**
1 * @author zcmain
2 * 获取当前的网络状态 -1：没有网络 1：WIFI网络2：wap网络3：net网络
3 * @param context
*/
public static int getAPNType(Context context){
int WIFI = 1;
int CMWAP = 2;
int CMNET = 3;
int netType = -1;
ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if(networkInfo==null)
return netType;
int apnType = networkInfo.getType();
if(apnType==ConnectivityManager.TYPE_MOBILE){
if(networkInfo.getExtraInfo().toLowerCase().equals("cmnet")){
netType = CMNET;
}else{
netType = CMWAP;
}
}else if(apnType==ConnectivityManager.TYPE_WIFI){
netType = WIFI;
}
return netType;
}
/**
* 是否开启 wifi true：开启 false：关闭
*
* 一定要加入权限： <uses-permission
* android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
* <uses-permission
* android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
*
*
* @param isEnable
*/
public void setWifi(boolean isEnable) {
WifiManager mWm = null;
if (mWm == null) {
mWm = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
}
if (isEnable) {
if (!mWm.isWifiEnabled()) {
mWm.setWifiEnabled(true);
}
} else {
// 关闭 wifi
if (mWm.isWifiEnabled()) {
mWm.setWifiEnabled(false);
}
}
}
//检测当前GPRS数据连接是否打开
public boolean gprsIsOpenMethod(String methodName) {
mCM = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
Class cmClass = mCM.getClass();
Class[] argClasses = null;
Object[] argObject = null;
Boolean isOpen = false;
try
{
Method method = cmClass.getMethod(methodName, argClasses);
isOpen = (Boolean) method.invoke(mCM, argObject);
} catch (Exception e)
{
e.printStackTrace();
}
return isOpen;
}
/**
* 强制设备使用数据连接
*
* @param flag
* @return
*/
//强制设备使用数据连接
public void setGprsEnabled(String methodName, boolean isEnable)
{
mCM = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
Class cmClass = mCM.getClass();
Class[] argClasses = new Class[1];
argClasses[0] = boolean.class;
try
{
Method method = cmClass.getMethod(methodName, argClasses);
method.invoke(mCM, isEnable);
} catch (Exception e)
{
e.printStackTrace();
}
}
public void deletecmnet(){
ContentResolver localContentResolver = context.getContentResolver();
Uri localUri = this.APN_LIST_URI;
int localCursor = localContentResolver.delete(localUri, "apn LIKE 'cmnet'", null);
}
}
4.0及以上的听说Google限制了WRITE_APN_SETTINGS权限需要在源码环境下编译或者使用系统签名才可通过。
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />