Android 如何激活设备管理器

1、自己写一个类TestDeviceAdminReceiver继承DeviceAdminReceiver，并实现其中的方法，然后得到这个组件ComponentName testDeviceAdmin = new ComponentName(this, TestDeviceAdminReceiver.class);
2、获取devicepolicyManager对象
DevicePolicyManager mDPM = (DevicePolicyManager)getSystemService(Context.DEVICE_POLICY_SERVICE);
3、判断是否已经激活
mDPM.isAdminActive(testDeviceAdmin )；
4、如果没有激活
Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, testDeviceAdmin );
intent.putExtra(DevicePolicyManager.EXTRA_ADD_EXPLANATION, “”);
startActivityForResult(intent, REQUEST_ACTIVATE);
然后处理onActivityResult即可