网络判断

来源：互联网发布：思加图淘宝旗舰店真假编辑：程序博客网时间：2024/06/04 01:06
 import android.app.AlertDialog;import android.content.ComponentName;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.os.Build;import android.provider.Settings;public class NetStateUtil {    public static boolean isConn(Context context) {        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo info = manager.getActiveNetworkInfo();        if (info != null && info.isAvailable()) {            return true;        } else {            return false;        }    }    public static void openDg(final Context context){        AlertDialog.Builder builder = new AlertDialog.Builder(context);        builder.setMessage("是否要进行网路设置");        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                Intent intent=null;                //判断手机系统的版本  即API大于10 就是3.0或以上版本                if (Build.VERSION.SDK_INT>10){                    intent=new Intent(Settings.ACTION_WIRELESS_SETTINGS);                }else {                    intent=new Intent();                    ComponentName component = new ComponentName("com.android.settings","com.android.settings.WirelessSettings");                    intent.setComponent(component);                    intent.setAction("android.intent.action.VIEW");                }                context.startActivity(intent);            }        });       //AlertDialog.Builder builder1 = new AlertDialog.Builder(context);        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {            }        });        builder.create().show();    }} //判断网络连接        boolean result = NetStateUtil.isConn(this);        if (result) {            //进行网路请求            MYTask myTask = new MYTask();（开启异步线程：代码省略）            myTask.execute(JSON_URL);        } else {            NetStateUtil.openDg(this);        }
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