网络与GPRS判断工具类

来源：互联网发布：红蚁网络运维编辑：程序博客网时间：2024/05/21 07:11
需要添加的权限：<uses-permission android:name="ACCESS_NETWORK_STATE"></uses-permission><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /><uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /><uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /><uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" /><uses-permission android:name="android.permission.INTERNET" />
import android.content.ComponentName;import android.content.Context;import android.content.DialogInterface;import android.content.Intent;import android.net.ConnectivityManager;import android.net.NetworkInfo.State;import android.support.v7.app.AlertDialog;import android.widget.Toast;import com.bawei.shizhuangzhuang20170424.R;public class WifiUtils {   public  static ConnectivityManager mManager;    public  static boolean checkNetworkState(Context context) {        boolean flag = false;        //得到网络连接信息        mManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);        //去进行判断网络是否连接        if (mManager.getActiveNetworkInfo() != null) {            flag = mManager.getActiveNetworkInfo().isAvailable();        }        if (!flag) {            setNetwork(context);        } else {            isNetworkAvailable(context);        }        return flag;    }    public  static void setNetwork(final Context context) {        Toast.makeText(context, "无网络", Toast.LENGTH_SHORT).show();        AlertDialog.Builder builder = new AlertDialog.Builder(context);        builder.setIcon(R.mipmap.ic_launcher);        builder.setTitle("网络提示信息");        builder.setMessage("网络不可用，如果继续，请先设置网络！");        builder.setPositiveButton("设置", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                Intent intent = null;                /**                 * 判断手机系统的版本！如果API大于10 就是3.0+                 * 因为3.0以上的版本的设置和3.0以下的设置不一样，调用的方法不同                 */                if (android.os.Build.VERSION.SDK_INT > 10) {                    intent = new Intent(android.provider.Settings.ACTION_WIFI_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);            }        });        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {            }        });        builder.create();        builder.show();    }    public  static void isNetworkAvailable(Context context) {        State gprs = mManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();        State wifi = mManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();        if (gprs == State.CONNECTED || gprs == State.CONNECTING) {            Toast.makeText(context, "GPRS网络下", Toast.LENGTH_SHORT).show();        }        //判断为wifi状态下加载内容        if (wifi == State.CONNECTED || wifi == State.CONNECTING) {            Toast.makeText(context, "wifi网络下", Toast.LENGTH_SHORT).show();        }    }}
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