用于在android应用中检查互联网连接的广播接收器
用于在android应用中检查互联网连接的广播接收器
提问于 2013-03-29 14:54:35
我正在开发一个用于检查互联网连接的android广播接收器。
问题是我的广播接收器被调用了两次。我希望只有在网络可用时才调用它。如果它不可用，我不想要通知。
这是广播接收器
public class NetworkChangeReceiver extends BroadcastReceiver {
@Override
public void onReceive(final Context context, final Intent intent) {
final ConnectivityManager connMgr = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
final android.net.NetworkInfo wifi = connMgr
.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
final android.net.NetworkInfo mobile = connMgr
.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if (wifi.isAvailable() || mobile.isAvailable()) {
// Do something
Log.d("Network Available ", "Flag No 1");
}
}
}这是manifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.broadcastreceiverforinternetconnection"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<receiver android:name=".NetworkChangeReceiver" >
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
<action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
</intent-filter>
</receiver>
</application>
</manifest>Stack Overflow用户
发布于 2016-08-12 07:31:44
清单：
<receiver android:name=".your.namepackage.here.ConnectivityReceiver">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
</intent-filter>
</receiver>接收器的类：
public class ConnectivityReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
switch (action) {
case ConnectivityManager.CONNECTIVITY_ACTION:
DebugUtils.logDebug("BROADCAST", "network change");
if(NetworkUtils.isConnect()){
//do action here
}
break;
}
}
}和类工具，如示例：
public class NetworkUtils {
public static boolean isConnect() {
ConnectivityManager connectivityManager = (ConnectivityManager) Application.getInstance().getSystemService(Context.CONNECTIVITY_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
Network[] netArray = connectivityManager.getAllNetworks();
NetworkInfo netInfo;
for (Network net : netArray) {
netInfo = connectivityManager.getNetworkInfo(net);
if ((netInfo.getTypeName().equalsIgnoreCase("WIFI") || netInfo.getTypeName().equalsIgnoreCase("MOBILE")) && netInfo.isConnected() && netInfo.isAvailable()) {
//if (netInfo.getState().equals(NetworkInfo.State.CONNECTED)) {
Log.d("Network", "NETWORKNAME: " + netInfo.getTypeName());
return true;
}
}
} else {
if (connectivityManager != null) {
@SuppressWarnings("deprecation")
NetworkInfo[] netInfoArray = connectivityManager.getAllNetworkInfo();
if (netInfoArray != null) {
for (NetworkInfo netInfo : netInfoArray) {
if ((netInfo.getTypeName().equalsIgnoreCase("WIFI") || netInfo.getTypeName().equalsIgnoreCase("MOBILE")) && netInfo.isConnected() && netInfo.isAvailable()) {
//if (netInfo.getState() == NetworkInfo.State.CONNECTED) {
Log.d("Network", "NETWORKNAME: " + netInfo.getTypeName());
return true;
}
}
}
}
}
return false;
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/15698790
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