Android 4.0 切换横屏后灭屏后亮屏唤醒的时候无法锁屏 报错 System.UI progress stoped

捕获日志 竟然报错空指针
05-01 00:20:43.076: E/AndroidRuntime(2356): FATAL EXCEPTION: main
05-01 00:20:43.076: E/AndroidRuntime(2356): Process: com.android.systemui, PID: 2356
05-01 00:20:43.076: E/AndroidRuntime(2356): java.lang.NullPointerException
05-01 00:20:43.076: E/AndroidRuntime(2356): at com.android.keyguard.KeyguardHostView.showSecurityScreen(KeyguardHostView.java:1229)
05-01 00:20:43.076: E/AndroidRuntime(2356): at com.android.keyguard.KeyguardHostView.showPrimarySecurityScreen(KeyguardHostView.java:889)
05-01 00:20:43.076: E/AndroidRuntime(2356): at com.android.keyguard.KeyguardHostView.onFinishInflate(KeyguardHostView.java:463)
05-01 00:20:43.076: E/AndroidRuntime(2356): at android.view.LayoutInflater.rInflate(LayoutInflater.java:763)
05-01 00:20:43.076: E/AndroidRuntime(2356): at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
05-01 00:20:43.076: E/AndroidRuntime(2356): at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
05-01 00:20:43.076: E/AndroidRuntime(2356): at com.android.keyguard.KeyguardViewManager.inflateKeyguardView(KeyguardViewManager.java:666)
05-01 00:20:43.076: E/AndroidRuntime(2356): at com.android.keyguard.KeyguardViewManager.maybeCreateKeyguardLocked(KeyguardViewManager.java:460)
05-01 00:20:43.076: E/AndroidRuntime(2356): at com.android.keyguard.KeyguardViewManager.show(KeyguardViewManager.java:152)
而且发现 报空的地方 还是 锁屏界面上的时间显示的widget

if(securityMode==SecurityMode.None){

        ViewGroup.LayoutParams lp=keyguard_security_container.getLayoutParams();
        
        lp.height=865;
     
       keyguard_security_container.setLayoutParams(lp);

        frame_layout_widgets.bringToFront(); //跳到这里报错空指针
    Log.e("hhz","securityMode------------------None");

    }else{

        ViewGroup.LayoutParams lp=keyguard_security_container.getLayoutParams();
     
         lp.height= ViewGroup.LayoutParams.WRAP_CONTENT;
     
         keyguard_security_container.setLayoutParams(lp);
        keyguard_security_container.bringToFront();

        Log.e("hhz","securityMode------------------other");
    }

而且有时候,不会弹框出现错误 提示而是 直接黑屏起不来,或者 不锁屏,但是 壁纸变成黑色,还有一点很奇怪的就是相机 切换横屏后锁屏 就是正常的 其他的一些原生应用只要横屏 锁屏 就会出现上述问题!斜体文字