用户拨打电话号码后锁定Android电话

Question

我正在开发一个安全应用程序，如果用户拨打了一个不经常调用且他从未打电话的电话号码，则用户将必须重新验证自己。为此，我想在检查电话号码后锁定手机。

public class outgoingCalls extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
    Log.v("onReceive", "In onReceive()");
    if (confidence == 0) {
        Log.v("onReceive","confidence zeroed");
        Intent i = new Intent();
        i.setClassName("abc.xyz.SECURITY","abc.xyz.SECURITY.lockActivity");
        i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(i);
    } 
}

在这项新活动中，我需要锁定我发表评论的电话//锁定电话

public class lockActivity extends Activity {  
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    Log.v("lock","lockActivity onCreate method called");
        //  setContentView(R.layout.main); 
        Log.v("lock","locking");
// LOCK PHONE
}
} 

手机没有被我尝试过的方法锁定。其中包括以下内容：

1.  KeyguardManager mgr = (KeyguardManager)   getSystemService(Activity.KEYGUARD_SERVICE); 
KeyguardLock lock = mgr.newKeyguardLock("edu.Boston.SECURITY.lockActivity"); 
((KeyguardLock) lock).reenableKeyguard(); 
2.  PowerManager manager = (PowerManager) getSystemService(Context.POWER_SERVICE);
manager.goToSleep(100);//int amountOfTime
3. PowerManager.WakeLock wl = manager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,    "Tag");
wl.acquire();
wl.release();
4. WindowManager.LayoutParams params = getWindow().getAttributes();
   params.screenBrightness = 0;
   getWindow().setAttributes(params);

Android清单文件的权限低于权限

    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
    <uses-permission android:name="android.permission.READ_CONTACTS"/>
    <uses-permission android:name="android.permission.DISABLE_KEYGUARD"/> 
    <uses-permission android:name="android.permission.WAKE_LOCK" />

为什么我不能锁定电话？有指针吗？非常感谢您的帮助。感谢它！

Answer 1

尝试创建一个设备policymanager

http://developer.android.com/training/enterprise/device-management-policy.html

然后致电：

DevicePolicyManager mDPM  = (DevicePolicyManager)context.getSystemService(Context.DEVICE_POLICY_SERVICE);
mDPM.lockNow();