锁定Android设备编程 [英] Lock the android device programatically

问题描述

我一直在试图通过程序来锁定设备。但我不能找到解决办法仍。 我想通过程序来锁定机器人froyo2.2。我曾尝试keyguardmanager和DeviceAdminManager。

I have been trying to lock the device through program. But I can't find the solution still. I want to lock android froyo2.2 through program. I have tried keyguardmanager and DeviceAdminManager.

我的应用程序是远程锁定设备。当接收到一些code字消息来锁定则锁定手机。请指引我。我发现有很多Api_demo程序作为解决方案，但我不能提取锁code单独从并找到解决办法。

My app is to remote lock the device. When message is received with some code words to lock then it locks the phone. Please guide me. I have found many Api_demo program as solution but I can't extract lock code alone from that and find solution.

推荐答案

活动类应该是内部类和outter类应该扩展DeviceAdminReceiver

The activity class should be inner class and the outter class should extend DeviceAdminReceiver

public class adminActivity extends DeviceAdminReceiver {

   public static class Controller extends Activity {

                    DevicePolicyManager mDPM;
            ComponentName mDeviceAdminSample;

        protected void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);

                mDPM = (DevicePolicyManager)getSystemService(Context.DEVICE_POLICY_SERVICE);
                mDeviceAdminSample = new ComponentName(Controller.this,
                        adminActivity.class);
      }
   }
}

要锁定设备写入code在您使用锁定事件

To lock the device write the code in the event where you use to lock

if (active) {
mDPM.lockNow();
}

如果启用DeviceAdmin然后手机将被锁定。 以使设备管理，所述DevicePolicyManager意图被调用，它应该被用户启用。

If DeviceAdmin is enabled then the phone will be locked. To enable the device admin, the DevicePolicyManager intent is called and it should be enabled by the user.

Intent intent = new   Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);  
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, mDeviceAdminSample);        

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