利用反射Android开发之开启关闭数据连接实现

来源：互联网发布：php和java发展编辑：程序博客网时间：2024/05/23 13:11

使用的是java的反射机制.直接上代码:

private TextView mTextView = null;

private Button mOpenMoblieNet = null;

private boolean isEnabled = false;

Method dataConnSwitchmethod;

Class telephonyManagerClass;

Object ITelephonyStub;

Class ITelephonyClass;

TelephonyManager telephonyManager;

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

mTextView = (TextView) findViewById(R.id.show_mobile_state);

mOpenMoblieNet = (Button) findViewById(R.id.open_mobile_network);

telephonyManager = (TelephonyManager) getApplicationContext()

.getSystemService(Context.TELEPHONY_SERVICE);

mOpenMoblieNet.setOnClickListener(new OnClickListener()

{

@Override

public void onClick(View arg0)

{

try

{

// 获取当前的状态

if (telephonyManager.getDataState() == TelephonyManager.DATA_CONNECTED)

{

isEnabled = true;

mTextView.setText("数据连接已开启");

} else

{

isEnabled = false;

mTextView.setText("数据连接已关闭");

}

Log.i("debugs", "当前数据连接是:" + isEnabled);

telephonyManagerClass = Class.forName(telephonyManager

.getClass().getName());

Method getITelephonyMethod = telephonyManagerClass

.getDeclaredMethod("getITelephony");

getITelephonyMethod.setAccessible(true);

ITelephonyStub = getITelephonyMethod

.invoke(telephonyManager);

ITelephonyClass = Class.forName(ITelephonyStub.getClass()

.getName());

if (isEnabled)

{

dataConnSwitchmethod = ITelephonyClass

.getDeclaredMethod("disableDataConnectivity");

mTextView.setText("数据连接已关闭");

Log.i("debugs", "当前数据连接是:" + isEnabled);

} else

{

dataConnSwitchmethod = ITelephonyClass

.getDeclaredMethod("enableDataConnectivity");

mTextView.setText("数据连接已打开");

Log.i("debugs", "当前数据连接是:" + isEnabled);

}

dataConnSwitchmethod.setAccessible(true);

dataConnSwitchmethod.invoke(ITelephonyStub);

} catch (Exception e)

{

// TODO Auto-generated catch block

e.printStackTrace();

}

});

}

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