可以android.settings.WIRELESS_SETTINGS
用来打开无线和蓝牙,但是我应该用什么来打开移动互联网?
问问题
6528 次
3 回答
7
Lollipop 在以编程方式启用移动数据方面存在限制。
使用此代码意图使用移动数据,您可以在其中打开/关闭移动数据:
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.android.settings", "com.android.settings.Settings$DataUsageSummaryActivity"));
startActivity(intent);
于 2016-12-15T06:47:28.417 回答
0
使用此方法(关闭 wifi(如果在 wifi 上))并打开移动数据连接
public boolean isConnected() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
boolean NisConnected = activeNetwork != null && activeNetwork.isConnected();
if (NisConnected) {
// if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE || activeNetwork.getType() == ConnectivityManager.TYPE_WIFI)
if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI) {
WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
// wifi.setWifiEnabled(true);//Turn on Wifi
wifi.setWifiEnabled(false);//Turn off Wifi
} else if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE)
return true;
else
return false;
}
return false;
}
用完方法后,如果您看到互联网无法连接,请使用以下方法打开移动数据
private void setMobileDataEnabled(Context context, boolean enabled) {
try {
final ConnectivityManager conman = (ConnectivityManager)
context.getSystemService(Context.CONNECTIVITY_SERVICE);
final Class conmanClass = Class.forName(conman.getClass().getName());
final Field iConnectivityManagerField = conmanClass.getDeclaredField("mService");
iConnectivityManagerField.setAccessible(true);
final Object iConnectivityManager = iConnectivityManagerField.get(conman);
final Class iConnectivityManagerClass = Class.forName(iConnectivityManager.getClass().getName());
final Method setMobileDataEnabledMethod = iConnectivityManagerClass.getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE);
setMobileDataEnabledMethod.setAccessible(true);
setMobileDataEnabledMethod.invoke(iConnectivityManager, enabled);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}
也需要清单中的许可
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
于 2015-06-07T05:29:44.120 回答
0
检查是否有互联网。
public class NetworkUtil {
public static int TYPE_WIFI = 1;
public static int TYPE_MOBILE = 2;
public static int TYPE_NOT_CONNECTED = 0;
public static int getConnectivityStatus(Context context) {
ConnectivityManager cm = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
if (null != activeNetwork) {
if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI)
return TYPE_WIFI;
if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE)
return TYPE_MOBILE;
}
return TYPE_NOT_CONNECTED;
}
public static int getConnectivityStatusString(Context context) {
int conn = NetworkUtil.getConnectivityStatus(context);
int status = -1;
if (conn == NetworkUtil.TYPE_WIFI) {
status = 1;
} else if (conn == NetworkUtil.TYPE_MOBILE) {
status = 2;
} else if (conn == NetworkUtil.TYPE_NOT_CONNECTED) {
status = 0;
}
return status;
}`
然后如果状态 == 0 ; 然后启动这个 Intent。
startActivity(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
于 2016-12-15T07:23:06.153 回答