Android检测WIFI连接、提示框延时消失

浏览数：21 / 时间：2015年06月11日

Android检测系统WIFI是否连接？如没有连接，显示提示框，提示进行设置，当点击设置进入系统WIFI界面后1秒钟，提示框自动消失。

代码：

public boolean isWifiConnected(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo wifiNetworkInfo = connectivityManager
                .getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        if (wifiNetworkInfo.isConnected()) {
            return true;
        } else {
            builder.setMessage("请检查WIFI是否连接成功！");
            builder.setTitle("提示信息");
            builder.setPositiveButton("设置",
                    new DialogInterface.OnClickListener() {
                        public void onClick(final DialogInterface dialog,
                                int which) {
                            Intent intent = new Intent(
                                    Settings.ACTION_WIFI_SETTINGS);
                            startActivity(intent);
                            //点击设置1秒后消失
                            new Handler().postDelayed(new Runnable() {
                                @Override
                                public void run() {
                                    dialog.dismiss();
                                }
                            }, 1000);
                        }
                    });
 
            builder.setNegativeButton("取消",
                    new android.content.DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                        }
                    });
            dialog = builder.create();
            dialog.show();
            return false;
        }
    }