android解绑监听,Android实时监听网络状态

1. 新建一个基类BasicActivity.class，在基类中注册网络监听广播NetworkChangeReceiver.class，所有页面的Activity都继承此基类BasicActivity.class

(1)网络状态改变监听类：NetWorkChangReceiver.class

/**

* 监听网络状态变化

* Created by Travis on 2017/10/11.

*/

public class NetWorkChangReceiver extends BroadcastReceiver {

/**

* 获取连接类型

*

* @param type

* @return

*/

private String getConnectionType(int type) {

String connType = "";

if (type == ConnectivityManager.TYPE_MOBILE) {

connType = "3G网络数据";

} else if (type == ConnectivityManager.TYPE_WIFI) {

connType = "WIFI网络";

}

return connType;

}

@Override

public void onReceive(Context context, Intent intent) {

if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(intent.getAction())) {// 监听wifi的打开与关闭，与wifi的连接无关

int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);

Log.e("TAG", "wifiState:" + wifiState);

switch (wifiState) {

case WifiManager.WIFI_STATE_DISABLED:

break;

case WifiManager.WIFI_STATE_DISABLING:

break;

}

}

// 监听网络连接，包括wifi和移动数据的打开和关闭,以及连接上可用的连接都会接到监听

if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) {

//获取联网状态的NetworkInfo对象

NetworkInfo info = intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);

if (info != null) {

//如果当前的网络连接成功并且网络连接可用

if (NetworkInfo.State.CONNECTED == info.getState() && info.isAvailable()) {

if (info.getType() == ConnectivityManager.TYPE_WIFI || info.getType() == ConnectivityManager.TYPE_MOBILE) {

Log.i("TAG", getConnectionType(info.getType()) + "连上");

Toast.makeText(context, getConnectionType(info.getType()) + "连上", Toast.LENGTH_SHORT).show();

}

} else {

Log.i("TAG", getConnectionType(info.getType()) + "断开");

Toast.makeText(context, getConnectionType(info.getType()) + "断开", Toast.LENGTH_SHORT).show();

}

}

}

}

}

(2)基类 BasicActivity

/**

* Activity基类:实时获取网络状态

* create by Travis1022 on 2017-10-11

*/

public class BasicActivity extends AppCompatActivity {

private boolean isRegistered = false;

private NetWorkChangReceiver netWorkChangReceiver;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//注册网络状态监听广播

netWorkChangReceiver = new NetWorkChangReceiver();

IntentFilter filter = new IntentFilter();

filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);

filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);

filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);

registerReceiver(netWorkChangReceiver, filter);

isRegistered = true;

}

@Override

protected void onDestroy() {

super.onDestroy();

//解绑

if (isRegistered) {

unregisterReceiver(netWorkChangReceiver);

}

}

}

(3) 在AndroidManifest.xml中声明广播以及对应的网络权限

xmlns:tools="http://schemas.android.com/tools"

package="com.guorentong.learn.wangluozhuangtai">

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme">