Android中判断网络是否可用的代码

来源：互联网发布：加热脚垫淘宝编辑：程序博客网时间：2024/06/10 00:12

Android中判断网络是否可用的代码_大企鹅

标签：判断网络连接android

2016-10-17 15:29 798人阅读评论(0) 收藏举报

分类：

小Demo（11）

这篇文章主要介绍了Android中判断网络是否可用的代码分享,
本文直接给出实现代码,需要的朋友可以参考下

获取网络信息需要在AndroidManifest.xml文件中加入相应的权限:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />1
1

import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.net.ConnectivityManager;import android.util.Log;import android.widget.Toast;import cn.hackcoder.beautyreader.activity.base.BaseActivity;import cn.hackcoder.beautyreader.utils.NetWorkUtils;    /**     * 判断是否有网络连接     * @internet:http://blog.csdn.net/w630886916     * @param daqie     * @return     */public class NetWorkStatusReceiver extends BroadcastReceiver {  public NetWorkStatusReceiver() {  }  @Override  public void onReceive(Context context, Intent intent) {    String action = intent.getAction();    if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) {      Toast.makeText(context, "network changed", Toast.LENGTH_LONG).show();      BaseActivity.isNetWorkConnected = NetWorkUtils.getAPNType(context)>0;    }  }}1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

新建类/几个方法的使用：

import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.telephony.TelephonyManager;/** * @大企鹅 */public class NetWorkUtils {    /**     * 判断是否有网络连接     * @param context     * @return     */    public static boolean isNetworkConnected(Context context) {        if (context != null) {            ConnectivityManager mConnectivityManager = (ConnectivityManager) context                    .getSystemService(Context.CONNECTIVITY_SERVICE);            NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();            if (mNetworkInfo != null) {                return mNetworkInfo.isAvailable();            }        }        return false;    }    /**     * 判断WIFI网络是否可用     * @param context     * @return     */    public static boolean isWifiConnected(Context context) {        if (context != null) {            ConnectivityManager mConnectivityManager = (ConnectivityManager) context                    .getSystemService(Context.CONNECTIVITY_SERVICE);            NetworkInfo mWiFiNetworkInfo = mConnectivityManager                    .getNetworkInfo(ConnectivityManager.TYPE_WIFI);            if (mWiFiNetworkInfo != null) {                return mWiFiNetworkInfo.isAvailable();            }        }        return false;    }    /**     * 判断MOBILE网络是否可用     * @param context     * @return     */    public static boolean isMobileConnected(Context context) {        if (context != null) {            ConnectivityManager mConnectivityManager = (ConnectivityManager) context                    .getSystemService(Context.CONNECTIVITY_SERVICE);            NetworkInfo mMobileNetworkInfo = mConnectivityManager                    .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);            if (mMobileNetworkInfo != null) {                return mMobileNetworkInfo.isAvailable();            }        }        return false;    }    /**     * 获取当前网络连接的类型信息     * @param context     * @return     */    public static int getConnectedType(Context context) {        if (context != null) {            ConnectivityManager mConnectivityManager = (ConnectivityManager) context                    .getSystemService(Context.CONNECTIVITY_SERVICE);            NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();            if (mNetworkInfo != null && mNetworkInfo.isAvailable()) {                return mNetworkInfo.getType();            }        }        return -1;    }    /**     * 获取当前的网络状态 ：没有网络0：WIFI网络1：3G网络2：2G网络3     *     * @param context     * @return     */    public static int getAPNType(Context context) {        int netType = 0;        ConnectivityManager connMgr = (ConnectivityManager) context                .getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();        if (networkInfo == null) {            return netType;        }        int nType = networkInfo.getType();        if (nType == ConnectivityManager.TYPE_WIFI) {            netType = 1;// wifi        } else if (nType == ConnectivityManager.TYPE_MOBILE) {            int nSubType = networkInfo.getSubtype();            TelephonyManager mTelephony = (TelephonyManager) context                    .getSystemService(Context.TELEPHONY_SERVICE);            if (nSubType == TelephonyManager.NETWORK_TYPE_UMTS                    && !mTelephony.isNetworkRoaming()) {                netType = 2;// 3G            } else {                netType = 3;// 2G            }        }        return netType;    }}1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118

<receiver   android:name=".daqie.aaaaa"   android:enabled="true"   android:exported="true">   <intent-filter>     <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />   </intent-filter> </receiver>

阅读全文

0 0