这个问题的可能原因
1)我认为有一些问题,在您的AndroidManifest.xml
2)您没有添加正确的类接收器的元数据(带有扩展DeviceAdminReceiver)传递给adminComponent或者传给接收者的android:name属性。
在这个我花了很多时间后,我创建了代码。
代码主要活动
public class LockerTest extends Activity {
protected static final int REQUEST_ENABLE = 0;
DevicePolicyManager devicePolicyManager;
ComponentName adminComponent;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button button = (Button) findViewById(R.id.btn);
button.setOnClickListener(btnListener);
}
Button.OnClickListener btnListener = new Button.OnClickListener() {
public void onClick(View v) {
adminComponent = new ComponentName(LockerTest.this, Darclass.class);
devicePolicyManager = (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
if (!devicePolicyManager.isAdminActive(adminComponent)) {
Intent intent = new Intent(DevicePolicyManager.ACTION_ADD_DEVICE_ADMIN);
intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, adminComponent);
startActivityForResult(intent, REQUEST_ENABLE);
} else {
devicePolicyManager.lockNow();
}
}
};
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (REQUEST_ENABLE == requestCode) {
super.onActivityResult(requestCode, resultCode, data);
}
}
}
创建一个新类 - Darclass - 代码
import android.app.admin.DeviceAdminReceiver;
public class Darclass extends DeviceAdminReceiver{
}
创建一个文件夹中的 '资源' 'XML'。然后在'xml'文件夹中创建my_admin.xml文件。代码为my_admin.xml。注意:</activity>
后添加此接收器和前</application>
<device-admin xmlns:android="http://schemas.android.com/apk/res/android">
<uses-policies>
<limit-password />
<watch-login />
<reset-password />
<force-lock />
<wipe-data />
</uses-policies>
</device-admin>
波纹管给出的接收器最后添加到您的AndroidManifest.xml
<receiver
android:name=".Darclass"
android:permission="android.permission.BIND_DEVICE_ADMIN" >
<meta-data
android:name="android.app.device_admin"
android:resource="@xml/my_admin" />
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
</intent-filter>
</receiver>
应您的设备上运行。
只是好奇你使用USES_POLICY_FORCE_LOCK我相信你只是问了吗?我还读到了locknow()对motorola设备的窃听,但不是关于DroidX的平板电脑。 –
是的,我有许可'USES_POLICY_FORCE_LOCK' –