為您找到相關(guān)結(jié)果21,446個
Android中利用NetworkInfo判斷網(wǎng)絡(luò)狀態(tài)時出現(xiàn)空指針(NullPointerException...
* NetworkInfo實現(xiàn)了Parcelable,獲取到的activeNetInfo相當(dāng)于服務(wù)中網(wǎng)絡(luò)信息實體對象的一個副本(拷貝), * 所以,不管系統(tǒng)網(wǎng)絡(luò)服務(wù)中的實體對象是否置為了null,此處獲得的activeNetInfo均不會發(fā)生變化 */ NetworkInfo activeNetInfo = connManager.getActiveNetworkInfo(); if(
www.dbjr.com.cn/article/986...htm 2025-5-29
Android檢查手機網(wǎng)絡(luò)狀態(tài)及網(wǎng)絡(luò)類型的方法_Android_腳本之家
if (null!=networkInfo && networkInfo.getType() == ConnectivityManager.TYPE_WIFI) { return true; } return false; } //judge 3G status is connecting or not public static boolean check3GStatus(Context context) { ConnectivityManager connectivityManager = (ConnectivityManager) context .getSystem...
www.dbjr.com.cn/article/647...htm 2025-5-25
Android中判斷有無可用網(wǎng)絡(luò)的代碼(是否是3G或者WIFI網(wǎng)絡(luò))_Android_腳本...
//檢查網(wǎng)絡(luò)連接,如果無網(wǎng)絡(luò)可用,就不需要進行連網(wǎng)操作等 NetworkInfo info = mConnectivity.getActiveNetworkInfo(); if (info == null || !mConnectivity.getBackgroundDataSetting()) { return false; } //判斷網(wǎng)絡(luò)連接類型,只有在3G或wifi里進行一些數(shù)據(jù)更新。 int netType = info.getType(); int netSubtype...
www.dbjr.com.cn/article/334...htm 2025-5-27
android 檢查網(wǎng)絡(luò)連接狀態(tài)實現(xiàn)步驟_Android_腳本之家
NetworkInfo mWiFiNetworkInfo = mConnectivityManager .getNetworkInfo(ConnectivityManager.TYPE_WIFI); if (mWiFiNetworkInfo != null) { return mWiFiNetworkInfo.isAvailable(); } } return false; } 3)判斷MOBILE網(wǎng)絡(luò)是否可用 復(fù)制代碼代碼如下: public boolean isMobileConnected(Context context) { if (context !=...
www.dbjr.com.cn/article/323...htm 2025-6-8
Android中監(jiān)聽判斷網(wǎng)絡(luò)連接狀態(tài)的方法_Android_腳本之家
NetworkInfo activeNetwork = cm.getActiveNetworkInfo(); boolean isConnected = activeNetwork != null && activeNetwork.isConnectedOrConnecting(); 判斷Internet連接類型 連接類型可能是移動數(shù)據(jù),WiMax,WIFI,以太網(wǎng)?？梢酝ㄟ^類似下面的方法查詢網(wǎng)絡(luò)類型:
www.dbjr.com.cn/article/515...htm 2025-6-15
Android中監(jiān)聽系統(tǒng)網(wǎng)絡(luò)連接打開或者關(guān)閉的實現(xiàn)代碼_Android_腳本之家
import android.net.NetworkInfo; 復(fù)制代碼代碼如下: public class NetstateReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { ConnectivityManager manager = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); ...
www.dbjr.com.cn/article/366...htm 2025-6-5
Android判斷是Wifi還是4G網(wǎng)絡(luò)代碼_Android_腳本之家
// System.out.println(i + "===類型===" + networkInfo[i].getTypeName()); // 判斷當(dāng)前網(wǎng)絡(luò)狀態(tài)是否為連接狀態(tài) if(aNetworkInfo.getState() == NetworkInfo.State.CONNECTED) { returntrue; } } } } returnfalse; } /** * 判斷WIFI是否打開 ...
www.dbjr.com.cn/article/884...htm 2025-6-6
iOS獲取當(dāng)前連接的wifi信息_IOS_腳本之家
info = (__bridge id)CNCopyCurrentNetworkInfo((CFStringRef)CFBridgingRetain(ifnam)); if(info && [info count]) { break; } } NSLog(@"wifi info %@",info); returninfo; } 1 2 3 4 5 wifi info { BSSID ="a4:2b:8c:92:47:3c"; ...
www.dbjr.com.cn/article/1443...htm 2025-6-1
解決iOS13 無法獲取WiFi名稱(SSID)問題_IOS_腳本之家
NSDictionary *info = (__bridge id)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifname); if(info[@"SSIDD"]) { ssid = info[@"SSID"]; } } returnssid; } 總結(jié) 以上所述是小編給大家介紹的解決iOS13 無法獲取WiFi名稱(SSID)問題,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會及時回復(fù)...
www.dbjr.com.cn/article/1699...htm 2025-6-7
Android 判斷網(wǎng)絡(luò)狀態(tài)對音頻靜音的實現(xiàn)方法_Android_腳本之家
publicstaticintgetAPNType(Context context) {intnetType =0; ConnectivityManager connMgr = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();if(networkInfo ==null) {returnnetType; }intnType = networkInfo.getType();if(nTy...
www.dbjr.com.cn/article/1497...htm 2025-6-10