Android Switch Data traffic

After looking for a long time on the internet, we found a reflection method to reflect the Setmobiledataenabled method of an object Iconnectivitymanager in Connectivitymanager. Because Iconnectivitymanager is private, you cannot call setmobiledataenabled directly.

This method, the specific code is as follows:

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2. /**

4. * GPRS status

6. * @param getmobiledataenabled

8. * @return

10.      */

12. Public boolean getmobiledatastatus (String getmobiledataenabled) {

14. Connectivitymanager cm;

16. CM = (Connectivitymanager)this. Getsystemservice (Context.connectivity_service);

20. Class Cmclass = Cm.getclass ();

22. class[] argclasses = null;

24. object[] Argobject = null;

26. Boolean IsOpen = false;

28. Try {

30. method = Cmclass.getmethod (getmobiledataenabled, argclasses);

32. IsOpen = (Boolean) method.invoke (cm, argobject);

34. }catch(Exception e) {

36. E.printstacktrace ();

38. }

40. return IsOpen;

42.     }  

/**     * gprs      *  @param   getmobiledataenabled     *  @return      */     public boolean getmobiledatastatus (string getmobiledataenabled) {       ConnectivityManager cm;        cm =  ( Connectivitymanager) This.getsystemservice (context.connectivity_service);           class cmclass = cm.getclass ();         Class[] argClasses = null;          object[] argobject = null;         boolean  isopen = false;         try{          method mEthod = cmclass.getmethod (getmobiledataenabled, argclasses);          isOpen =  (Boolean) Method.invoke (cm, argobject);          }catch (exception e) {         E.printstacktrace ();          }    return  isopen;      }

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2. /**

4. * Mobile network switch

6.     */

8. Private void setmobiledataenabled (context context, Boolean enabled) {

10. Connectivitymanager conmgr = (connectivitymanager) context.getsystemservice (Context.connectivity_service);

14. class<?> Conmgrclass = null; //Connectivitymanager class

16. Field Iconmgrfield = null; fields in the//Connectivitymanager class

18. Object iconmgr = null; //Iconnectivitymanager class reference

20. class<?> Iconmgrclass = null; //Iconnectivitymanager class

22. Method Setmobiledataenabledmethod = null; //Setmobiledataenabled method

26. Try {

28. //Get Connectivitymanager class

30. Conmgrclass = Class.forName (Conmgr.getclass (). GetName ());

32. //Get the object in the Connectivitymanager class Mservice

34. Iconmgrfield = Conmgrclass.getdeclaredfield ("Mservice");

36. //Set Mservice accessible

38. Iconmgrfield.setaccessible (true);

40. //Get Mservice instantiation class Iconnectivitymanager

42. Iconmgr = Iconmgrfield.get (conmgr);

44. //Get Iconnectivitymanager class

46. Iconmgrclass = Class.forName (Iconmgr.getclass (). GetName ());

48. //Get the Setmobiledataenabled (Boolean) method in the Iconnectivitymanager class

50. Setmobiledataenabledmethod = Iconmgrclass.getdeclaredmethod ("setmobiledataenabled", Boolean.TYPE);

52. //Set setmobiledataenabled method to access

54. Setmobiledataenabledmethod.setaccessible (true);

56. //Call the Setmobiledataenabled method

58. Setmobiledataenabledmethod.invoke (iconmgr, enabled);

60. } catch (ClassNotFoundException e) {

62. E.printstacktrace ();

64. } catch (Nosuchfieldexception e) {

66. E.printstacktrace ();

68. } catch (SecurityException e) {

70. E.printstacktrace ();

72. } catch (Nosuchmethodexception e) {

74. E.printstacktrace ();

76. } catch (IllegalArgumentException e) {

78. E.printstacktrace ();

80. } catch (Illegalaccessexception e) {

82. E.printstacktrace ();

84. } catch (InvocationTargetException e) {

86. E.printstacktrace ();

88. }

90. }

 /**     *  Mobile network Switches      */     Private void setmobiledataenabled (context context, boolean enabled)  {  connectivitymanager conmgr =  (Connectivitymanager)  context.getsystemservice ( Context.connectivity_service); class<?> conmgrclass = null; //  Fields in the Connectivitymanager class  field iconmgrfield = null; // connectivitymanager class  object iconmgr = null; // iconnectivitymanager class References  Class<?>  Iconmgrclass = null; // iconnectivitymanager class  method setmobiledataenabledmethod  = null; // setmobiledataenabled Methods  try {  //  Obtained Connectivitymanager class   conmgrclass = class.forname (Conmgr.getclass (). GetName ());   //  get objects in the Connectivitymanager class MSERVICE&NBSP;&NBSP;ICONMGRFIELD&NBsp;= conmgrclass.getdeclaredfield ("Mservice");  //  settings Mservice accessible    Iconmgrfield.setaccessible (True);  //  gets the instantiated class of Mservice Iconnectivitymanager  iconmgr  = iconmgrfield.get (conmgr);  //  acquired Iconnectivitymanager class   iconmgrclass  = class.forname (Iconmgr.getclass (). GetName ());  //  Get the Setmobiledataenabled (Boolean) method in the Iconnectivitymanager class   setMobileDataEnabledMethod =  Iconmgrclass.getdeclaredmethod ("setmobiledataenabled",  boolean.type);  //  Set the Setmobiledataenabled method to access   setmobiledataenabledmethod.setaccessible (true);  //  Call the Setmobiledataenabled method   setmobiledataenabledmethod.invoke (iconmgr, enabled); }  catch  (classnotfoundexception e)  {  e.printstacktrace (); } catch  ( nosuchfieldexception e)  {  e.printstacktrace (); } catch  (Securityexception e)  {  e.printstacktrace (); } catch  (NoSuchMethodException  e)  {  e.printstacktrace (); } catch  (illegalargumentexception e)   {  e.printstacktrace (); } catch  (illegalaccessexception e)  {   E.printstacktrace (); } catch  (invocationtargetexception e)  {   E.printstacktrace ();  }    }

This error has been found for half a day ~ ~ ~ didn't find a way to solve

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1. java.lang.NoSuchMethodException:setMobileDataEnabled [Boolean]

java.lang.NoSuchMethodException:setMobileDataEnabled [Boolean]

Finally found a way to try to find out on the internet

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2. Private void Togglemobiledata (context context, Boolean enabled) {

4. Connectivitymanager Connectivitymanager =

6. (Connectivitymanager) Context.getsystemservice (Context.connectivity_service);

8. Method setmobiledataenabl;

10. Try {

12. Setmobiledataenabl = Connectivitymanager.getclass (). Getdeclaredmethod ("setmobiledataenabled", Boolean. class);

14. Setmobiledataenabl.invoke (Connectivitymanager, enabled);

16. } catch (Exception e) {

18. E.printstacktrace ();

20. }

22. }

private void Togglemobiledata (context context, Boolean enabled) {Connectivitymanager Connectivitymanager = (connectiv  Itymanager) Context.getsystemservice (Context.connectivity_service); Method setmobiledataenabl;try {setmobiledataenabl = Connectivitymanager.getclass (). Getdeclaredmethod (" Setmobiledataenabled ", Boolean.class); Setmobiledataenabl.invoke (Connectivitymanager, enabled);} catch (Exception e) {e.printstacktrace ();}}

Android Switch Data traffic