ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯æŽ¥ç¶šã®ãƒã‚§ãƒƒã‚¯æ–¹æ³• - matabii's blogWIFIã‹3Gãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ãŒæœ‰åŠ¹ãªæ™‚ã¯æŽ¥ç¶šã—ã€ãã†ã§ãªã„å ´åˆã¯ã‚ªãƒ•ãƒ©ã‚¤ãƒ³ãƒ¢ãƒ¼ãƒ‰ã§å‹•ã‹ã™ãªã‚“ã¦äº‹ãŒã—ãŸã„å ´åˆã«ã€ç¾åœ¨ã®ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®æŽ¥ç¶šçŠ¶æ³ã‚’調ã¹ã‚‹æ–¹æ³•ã§ã™ã€‚ public static boolean isConnected(Context context){ ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo ni = cm.getActiveNetworkInfo(); if( ni != null ){ return cm.getActiveNetworkInfo().isConnected(); } return false; } ConnectivityManager | Android Developer
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