Android之检查网络是否可用（跳转网络设置页面）

    private boolean NetWorkStatus() {

        ConnectivityManager cwjManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

        // cwjManager.getActiveNetworkInfo();

        boolean netSataus = true;

        if (cwjManager.getActiveNetworkInfo() != null) {

            netSataus = cwjManager.getActiveNetworkInfo().isAvailable();

            Toast.makeText(this, "网络已经打开", Toast.LENGTH_LONG).show();

        } else {



            Builder b = new AlertDialog.Builder(this).setTitle("没有可用的网络")

                    .setMessage("是否对网络进行设置？");

            b.setPositiveButton("是", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface dialog, int whichButton) {

                    Intent mIntent = new Intent("/");

                    ComponentName comp = new ComponentName(

                            "com.android.settings",

                            "com.android.settings.WirelessSettings");

                    mIntent.setComponent(comp);

                    mIntent.setAction("android.intent.action.VIEW");

                    // 如果在设置完成后需要再次进行操作，可以重写操作代码，在这里不再重写

                    startActivityForResult(mIntent, 0);

                }

            }).setNeutralButton("否", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface dialog, int whichButton) {

                    dialog.cancel();

                }

            }).show();

        }



        return netSataus;

    }

 

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />