Question

最近我在编码中使用A.class。

我知道为什么要显示此异常。但我的班不是onCreate（）方法一个类扩展了BaseContent basecontent是抽象类。

basecontent不是onCreate（）方法。

我该如何处理？

java.lang.IllegalStateException: System services not available to Activities before onCreate()

以下是代码：

 private OnClickListener mConnectOnClick = new OnClickListener() {

    @Override
    public void onClick(View v) {


        final WifiConfiguration config = Wifi.getWifiConfiguration(mWifiManager, mScanResult, mScanResultSecurity);
        boolean connResult = false;

        if (config != null) {
                            connResult = Wifi.connectToConfiguredNetwork(mFloating, mWifiManager, config, false);   //WI-FI connect
            final Dialog dialog = new Dialog(v.getContext());
            dialog.setCanceledOnTouchOutside(false);

            dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
            dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
            dialog.getWindow().getDecorView().setSystemUiVisibility(
                    View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hide nav bar
                            | View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
            dialog.setContentView(R.layout.dialog);
            dialog.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);





            ConnectivityManager cm = (ConnectivityManager)getSystemService(CONNECTIVITY_SERVICE);
            NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
            int m_iNetworkType = (activeNetwork == null) ? -1 : activeNetwork.getType();


                dialog.dismiss();
            }
            else {
                dialog.show();
            }
        }
        if (!connResult) {
            Toast.makeText(mFloating, R.string.toastFailed, Toast.LENGTH_LONG).show();
        }
    }

};

这是例外：

: FATAL EXCEPTION: main
Process: kr.co.iosystem.wificonnecter, PID: 4521
java.lang.IllegalStateException: System services not available to Activities before onCreate()
  at android.app.Activity.getSystemService(Activity.java:4532)
  at kr.co.iosystem.wificonnecter.connecter.ConfiguredNetworkContent$1.onClick(ConfiguredNetworkContent.java:263)
  at android.view.View.performClick(View.java:4438)
  at android.view.View$PerformClick.run(View.java:18422)
  at android.os.Handler.handleCallback(Handler.java:733)
  at android.os.Handler.dispatchMessage(Handler.java:95)
  at android.os.Looper.loop(Looper.java:136)
  at android.app.ActivityThread.main(ActivityThread.java:5001)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:515)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
  at dalvik.system.NativeStart.main(Native Method)

Android我的类没有onCreate（）方法。但异常在onCreate（）之前活动不可用的系统服务

0 个答案: