android 自动打开移动网络

自动打开移动网络 代码如下:

public void gprs(boolean isEnable)throws Exception  
{  
ConnectivityManager connManager=(ConnectivityManager)this.getSystemService(CONNECTIVITY_SERVICE);  
Class cmClass=connManager.getClass();  
Class[] arcClasses=new Class[1];  
arcClasses[0]=boolean.class;  
  
Method method=cmClass.getMethod("setMobileDataEnabled", arcClasses);  
method.invoke(connManager, isEnable);  
}