android - 如何直接在无线和网络页面上启动设置？

Question

我将要构建自己的对话框来通知用户该应用程序无法连接到互联网，并且我打算在其上放置两个按钮。设置和取消，就像在许多其他应用程序中看到的那样。

我现在想知道，如何直接在“无线和网络”页面上启动设置？

Answer 1

/**
     * Display a dialog that user has no internet connection
     * @param ctx1
     *
     * Code from: http://osdir.com/ml/Android-Developers/2009-11/msg05044.html
     */
    public static void showNoConnectionDialog(Context ctx1) {
        final Context ctx = ctx1;
        AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
        builder.setCancelable(true);
        builder.setMessage(R.string.no_connection);
        builder.setTitle(R.string.no_connection_title);
        builder.setPositiveButton(R.string.settings, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                ctx.startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));
            }
        });
        builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                return;
            }
        });
        builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
            public void onCancel(DialogInterface dialog) {
                return;
            }
        });

        builder.show();
    }