Chinese, Simplified
1. 概述
Android 上打开和关闭数据连接的API是隐藏的，即普通的apk没有权限来打开数据连接，本文提供用反射方法实现的例子，前提是apk需获得系统权限(有系统签名或者apk处在/system/priv-app/目录)。。
2. 参考代码
主要参考代码如下：
private void dataCtrlTest(){
Log.i(TAG,"dataCtrlTest start");
TelephonyManager telephonyManager = null;
Class telephonyManagerClz = null;
int isSimReady;
boolean isDataEnabled=false;
try {
telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
telephonyManagerClz = telephonyManager.getClass();
isSimReady = telephonyManager.getSimState();
Log.i(TAG,"sim state:"+isSimReady);
//get api to set data
Method setDataEnabled= telephonyManagerClz.getMethod(
"setDataEnabled", new Class[] {boolean.class });
//get api to check data
Method getDataEnabled= telephonyManagerClz.getMethod(
"getDataEnabled", new Class[] {});
if(isSimReady==TelephonyManager.SIM_STATE_READY){
isDataEnabled = (boolean)getDataEnabled.invoke(telephonyManager);
Log.i(TAG,"isDataEnabled :"+isDataEnabled);
if(!isDataEnabled){
//enable data
setDataEnabled.invoke(telephonyManager,true);
}else{
//disable data
setDataEnabled.invoke(telephonyManager,false);
}
isDataEnabled = (boolean)getDataEnabled.invoke(telephonyManager);
Log.i(TAG,"isDataEnabled :"+isDataEnabled+" after setting");
}
} catch (Exception e) {
e.printStackTrace();
}
Log.i(TAG,"dataCtrlTest end");
}
谢谢！
