以编程方式锁定Android设备 [英] Lock the Android device programmatically

问题描述

我一直试图通过程序锁定设备.但是我仍然找不到解决方案. 我想通过程序锁定Android froyo2.2.我已经尝试过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.当收到带有一些代码字要锁定的消息时，它将锁定电话.我已经找到了许多Api_demo程序作为解决方案，但是我无法从中单独提取锁定代码并找到解决方案.

My app is to remote lock the device. When message is received with some code words to lock then it locks the phone. 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，而外部类应该扩展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，请在用于锁定的情况下编写代码

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

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

如果启用了DeviceAdmin，则电话将被锁定. 要启用设备管理员，将调用DevicePolicyManager意图，并且用户应启用它.

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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