Android实时监听网络状态(2)

旧街凉风 提交于 2020-03-31 04:00:09

Android实时监听网络状态(1)

 

其实手机在网络方面的的监听也比较重要,有时候我们必须实时监控这个程序的实时网络状态,android在网络断开与连接的时候都会发出广播,我们通过接收系统的广播就可以实现网络的监听。

1、添加访问网络和获取网络状态的权限

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

2、新建一个Application类并继承android.app.Application 申明变量保存网络状态

复制代码
package com.javen.application;

import com.javen.netbroadcast.NetUtil;


public class Application extends android.app.Application {
    private static Application mApplication;
    public static int mNetWorkState;

    public static synchronized Application getInstance() {
        return mApplication;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        mApplication = this;
        initData();
    }



    public void initData() {
        mNetWorkState = NetUtil.getNetworkState(this);
    }
}
复制代码

 

3、新建NetBroadcastReceiver类继承BroadcastReceiver 并实现onReceive方法 在onReceive方法通知接口完成加载

复制代码
package com.javen.receiver;

import java.util.ArrayList;

import com.javen.application.Application;
import com.javen.netbroadcast.NetUtil;


import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class NetBroadcastReceiver extends BroadcastReceiver {
    public static ArrayList<netEventHandler> mListeners = new ArrayList<netEventHandler>();
    private static String NET_CHANGE_ACTION = "android.net.conn.CONNECTIVITY_CHANGE";
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(NET_CHANGE_ACTION)) {
            Application.mNetWorkState = NetUtil.getNetworkState(context);
            if (mListeners.size() > 0)// 通知接口完成加载
                for (netEventHandler handler : mListeners) {
                    handler.onNetChange();
                }
        }
    }

    public static abstract interface netEventHandler {

        public abstract void onNetChange();
    }
}
复制代码

4、在应该的Activity中实现netEventHandler接口 

复制代码
package com.javen.netbroadcast;

import com.javen.receiver.NetBroadcastReceiver;
import com.javen.receiver.NetBroadcastReceiver.netEventHandler;
import com.javen.ui.base.BaseActivity;

import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends BaseActivity implements netEventHandler{
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        NetBroadcastReceiver.mListeners.add(this);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void onNetChange() {
        // TODO Auto-generated method stub
        if (NetUtil.getNetworkState(this) == NetUtil.NETWORN_NONE) {
            T.showLong(this, R.string.net_err);
        }else {
            T.showLong(this, "网络可以使用");
        }
    }

}
复制代码

5、判断网络的工具类

复制代码
package com.javen.netbroadcast;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;

public class NetUtil {
    public static final int NETWORN_NONE = 0;
    public static final int NETWORN_WIFI = 1;
    public static final int NETWORN_MOBILE = 2;

    public static int getNetworkState(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        // Wifi
        State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_WIFI;
        }

        // 3G
        state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_MOBILE;
        }
        return NETWORN_NONE;
    }
}
复制代码

 

不要让昨天的沮丧 让今天的梦想黯然失色 成功的人总是修改方法而不修改目标 微信公众号:javenlife
 
 
标签: Android
好文要顶 关注我 收藏该文  
0
0
 
(请您对文章做出评价)
 
« 上一篇:Java实现Excel导入数据库,数据库中的数据导入到Excel
» 下一篇:Android-Universal-Image-Loader 图片异步加载类库的使用(超详细配置)
posted @ 2014-06-05 17:01 智慧云端日记 阅读(6092) 评论(3) 编辑 收藏

 

 
#1楼 2014-12-09 15:44 雪雨潇潇  
不错,正需要呢
#2楼 2015-11-25 14:29 Rising_Sun  
楼主,你确定代码没有问题吗?
#3楼 2015-11-25 14:45 Rising_Sun  
@楼主
文章中应该告诉大家,在AndroidManifest.xml 文件中注册广播
<!-- 注册广播 --> 
<receiver android:name=".NetBroadcastReceiver"> 
<intent-filter> 
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> 
</intent-filter> 
</receiver>

 

 

###################################

Android实时监听网络状态(2)

在开发android应用时,涉及到要进行网络访问,时常需要进行网络状态的检查,以提供给用户必要的提醒。一般可以通过ConnectivityManager来完成该工作。

ConnectivityManager有四个主要任务:

1、监听手机网络状态(包括GPRS,WIFI, UMTS等)

2、手机状态发生改变时,发送广播

3、当一个网络连接失败时进行故障切换

4、为应用程序提供可以获取可用网络的高精度和粗糙的状态

当我们要在程序中监听网络状态时,只要一下几个步骤即可:

1、定义一个Receiver重载其中的onReceive函数,在其中完成所需要的功能,如根据WIFI和GPRS是否断开来改变空间的外观或者提示是否能访问网络

 

复制代码
package com.bsharksdk.receiver;

import com.bsharksdk.main.BSharkApi;
import com.bsharksdk.ui.BSToast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

/**
 * @author Javen
 * 
 */
public class ConnectionChangeReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        ConnectivityManager connectivityManager=(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo  mobNetInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
        NetworkInfo  wifiNetInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        
        if (!mobNetInfo.isConnected() && !wifiNetInfo.isConnected()) {
            BSToast.showLong(context, "网络不可以用");
            //改变背景或者 处理网络的全局变量
        }else {
            //改变背景或者 处理网络的全局变量
        }
    }
}
复制代码

2、在适当的地方注册Receiver,可以在程序中注册,在onCreate中调用如下函数即可:

private  void registerReceiver(){
        IntentFilter filter=new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
        myReceiver=new ConnectionChangeReceiver();
        this.registerReceiver(myReceiver, filter);
    }

3、在适当时取消注册Receiver,可以在程序中取消,在onDestroye中调用如下函数即可:

private  void unregisterReceiver(){
        this.unregisterReceiver(myReceiver);
    }

   记得在 Activity中 设置变量 private ConnectionChangeReceiver myReceiver;

   记得添加访问网络需要的权限

  

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

 

 

不要让昨天的沮丧 让今天的梦想黯然失色 成功的人总是修改方法而不修改目标 微信公众号:javenlife
 
 
标签: Android
http://www.cnblogs.com/zyw-205520/p/3770705.html

Android实时监听网络状态(1)

 

其实手机在网络方面的的监听也比较重要,有时候我们必须实时监控这个程序的实时网络状态,android在网络断开与连接的时候都会发出广播,我们通过接收系统的广播就可以实现网络的监听。

1、添加访问网络和获取网络状态的权限

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

2、新建一个Application类并继承android.app.Application 申明变量保存网络状态

复制代码
package com.javen.application;

import com.javen.netbroadcast.NetUtil;


public class Application extends android.app.Application {
    private static Application mApplication;
    public static int mNetWorkState;

    public static synchronized Application getInstance() {
        return mApplication;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        mApplication = this;
        initData();
    }



    public void initData() {
        mNetWorkState = NetUtil.getNetworkState(this);
    }
}
复制代码

 

3、新建NetBroadcastReceiver类继承BroadcastReceiver 并实现onReceive方法 在onReceive方法通知接口完成加载

复制代码
package com.javen.receiver;

import java.util.ArrayList;

import com.javen.application.Application;
import com.javen.netbroadcast.NetUtil;


import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class NetBroadcastReceiver extends BroadcastReceiver {
    public static ArrayList<netEventHandler> mListeners = new ArrayList<netEventHandler>();
    private static String NET_CHANGE_ACTION = "android.net.conn.CONNECTIVITY_CHANGE";
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(NET_CHANGE_ACTION)) {
            Application.mNetWorkState = NetUtil.getNetworkState(context);
            if (mListeners.size() > 0)// 通知接口完成加载
                for (netEventHandler handler : mListeners) {
                    handler.onNetChange();
                }
        }
    }

    public static abstract interface netEventHandler {

        public abstract void onNetChange();
    }
}
复制代码

4、在应该的Activity中实现netEventHandler接口 

复制代码
package com.javen.netbroadcast;

import com.javen.receiver.NetBroadcastReceiver;
import com.javen.receiver.NetBroadcastReceiver.netEventHandler;
import com.javen.ui.base.BaseActivity;

import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends BaseActivity implements netEventHandler{
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        NetBroadcastReceiver.mListeners.add(this);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void onNetChange() {
        // TODO Auto-generated method stub
        if (NetUtil.getNetworkState(this) == NetUtil.NETWORN_NONE) {
            T.showLong(this, R.string.net_err);
        }else {
            T.showLong(this, "网络可以使用");
        }
    }

}
复制代码

5、判断网络的工具类

复制代码
package com.javen.netbroadcast;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;

public class NetUtil {
    public static final int NETWORN_NONE = 0;
    public static final int NETWORN_WIFI = 1;
    public static final int NETWORN_MOBILE = 2;

    public static int getNetworkState(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        // Wifi
        State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_WIFI;
        }

        // 3G
        state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_MOBILE;
        }
        return NETWORN_NONE;
    }
}
复制代码

 

不要让昨天的沮丧 让今天的梦想黯然失色 成功的人总是修改方法而不修改目标 微信公众号:javenlife
 
 
标签: Android
好文要顶 关注我 收藏该文  
0
0
 
(请您对文章做出评价)
 
« 上一篇:Java实现Excel导入数据库,数据库中的数据导入到Excel
» 下一篇:Android-Universal-Image-Loader 图片异步加载类库的使用(超详细配置)
posted @ 2014-06-05 17:01 智慧云端日记 阅读(6092) 评论(3) 编辑 收藏

 

 
#1楼 2014-12-09 15:44 雪雨潇潇  
不错,正需要呢
#2楼 2015-11-25 14:29 Rising_Sun  
楼主,你确定代码没有问题吗?
#3楼 2015-11-25 14:45 Rising_Sun  
@楼主
文章中应该告诉大家,在AndroidManifest.xml 文件中注册广播
<!-- 注册广播 --> 
<receiver android:name=".NetBroadcastReceiver"> 
<intent-filter> 
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> 
</intent-filter> 
</receiver>

 

 

###################################

Android实时监听网络状态(2)

在开发android应用时,涉及到要进行网络访问,时常需要进行网络状态的检查,以提供给用户必要的提醒。一般可以通过ConnectivityManager来完成该工作。

ConnectivityManager有四个主要任务:

1、监听手机网络状态(包括GPRS,WIFI, UMTS等)

2、手机状态发生改变时,发送广播

3、当一个网络连接失败时进行故障切换

4、为应用程序提供可以获取可用网络的高精度和粗糙的状态

当我们要在程序中监听网络状态时,只要一下几个步骤即可:

1、定义一个Receiver重载其中的onReceive函数,在其中完成所需要的功能,如根据WIFI和GPRS是否断开来改变空间的外观或者提示是否能访问网络

 

复制代码
package com.bsharksdk.receiver;

import com.bsharksdk.main.BSharkApi;
import com.bsharksdk.ui.BSToast;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

/**
 * @author Javen
 * 
 */
public class ConnectionChangeReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        ConnectivityManager connectivityManager=(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo  mobNetInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
        NetworkInfo  wifiNetInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
        
        if (!mobNetInfo.isConnected() && !wifiNetInfo.isConnected()) {
            BSToast.showLong(context, "网络不可以用");
            //改变背景或者 处理网络的全局变量
        }else {
            //改变背景或者 处理网络的全局变量
        }
    }
}
复制代码

2、在适当的地方注册Receiver,可以在程序中注册,在onCreate中调用如下函数即可:

private  void registerReceiver(){
        IntentFilter filter=new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
        myReceiver=new ConnectionChangeReceiver();
        this.registerReceiver(myReceiver, filter);
    }

3、在适当时取消注册Receiver,可以在程序中取消,在onDestroye中调用如下函数即可:

private  void unregisterReceiver(){
        this.unregisterReceiver(myReceiver);
    }

   记得在 Activity中 设置变量 private ConnectionChangeReceiver myReceiver;

   记得添加访问网络需要的权限

  

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

 

 

其实手机在网络方面的的监听也比较重要,有时候我们必须实时监控这个程序的实时网络状态,android在网络断开与连接的时候都会发出广播,我们通过接收系统的广播就可以实现网络的监听。

1、添加访问网络和获取网络状态的权限

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

2、新建一个Application类并继承android.app.Application 申明变量保存网络状态

复制代码
package com.javen.application;

import com.javen.netbroadcast.NetUtil;


public class Application extends android.app.Application {
    private static Application mApplication;
    public static int mNetWorkState;

    public static synchronized Application getInstance() {
        return mApplication;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        mApplication = this;
        initData();
    }



    public void initData() {
        mNetWorkState = NetUtil.getNetworkState(this);
    }
}
复制代码

 

3、新建NetBroadcastReceiver类继承BroadcastReceiver 并实现onReceive方法 在onReceive方法通知接口完成加载

复制代码
package com.javen.receiver;

import java.util.ArrayList;

import com.javen.application.Application;
import com.javen.netbroadcast.NetUtil;


import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class NetBroadcastReceiver extends BroadcastReceiver {
    public static ArrayList<netEventHandler> mListeners = new ArrayList<netEventHandler>();
    private static String NET_CHANGE_ACTION = "android.net.conn.CONNECTIVITY_CHANGE";
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(NET_CHANGE_ACTION)) {
            Application.mNetWorkState = NetUtil.getNetworkState(context);
            if (mListeners.size() > 0)// 通知接口完成加载
                for (netEventHandler handler : mListeners) {
                    handler.onNetChange();
                }
        }
    }

    public static abstract interface netEventHandler {

        public abstract void onNetChange();
    }
}
复制代码

4、在应该的Activity中实现netEventHandler接口 

复制代码
package com.javen.netbroadcast;

import com.javen.receiver.NetBroadcastReceiver;
import com.javen.receiver.NetBroadcastReceiver.netEventHandler;
import com.javen.ui.base.BaseActivity;

import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends BaseActivity implements netEventHandler{
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        NetBroadcastReceiver.mListeners.add(this);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void onNetChange() {
        // TODO Auto-generated method stub
        if (NetUtil.getNetworkState(this) == NetUtil.NETWORN_NONE) {
            T.showLong(this, R.string.net_err);
        }else {
            T.showLong(this, "网络可以使用");
        }
    }

}
复制代码

5、判断网络的工具类

复制代码
package com.javen.netbroadcast;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo.State;

public class NetUtil {
    public static final int NETWORN_NONE = 0;
    public static final int NETWORN_WIFI = 1;
    public static final int NETWORN_MOBILE = 2;

    public static int getNetworkState(Context context) {
        ConnectivityManager connManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);

        // Wifi
        State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_WIFI;
        }

        // 3G
        state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)
                .getState();
        if (state == State.CONNECTED || state == State.CONNECTING) {
            return NETWORN_MOBILE;
        }
        return NETWORN_NONE;
    }
}
复制代码

 

易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!