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在AndroidManifest.xml 中添加代碼:
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
2. 通過(guò)ConnectivityManager類來(lái)進(jìn)行編碼操作。
public void getNetworkState() { ConnectivityManager connManager = (ConnectivityManager) this.getSystemService(CONNECTIVITY_SERVICE); // 獲取代表聯(lián)網(wǎng)狀態(tài)的NetWorkInfo對(duì)象 NetworkInfo networkInfo = connManager.getActiveNetworkInfo(); // 獲取當(dāng)前的網(wǎng)絡(luò)連接是否可用 if (null == networkInfo) { Toast.makeText(this, "當(dāng)前的網(wǎng)絡(luò)連接不可用", Toast.LENGTH_SHORT).show(); //當(dāng)網(wǎng)絡(luò)不可用時(shí),跳轉(zhuǎn)到網(wǎng)絡(luò)設(shè)置頁(yè)面 startActivityForResult(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS), 1); } else { boolean available = networkInfo.isAvailable(); if (available) { Log.i("通知", "當(dāng)前的網(wǎng)絡(luò)連接可用"); Toast.makeText(this, "當(dāng)前的網(wǎng)絡(luò)連接可用", Toast.LENGTH_SHORT).show(); } else { Log.i("通知", "當(dāng)前的網(wǎng)絡(luò)連接不可用"); Toast.makeText(this, "當(dāng)前的網(wǎng)絡(luò)連接不可用", Toast.LENGTH_SHORT).show(); } } NetworkInfo.State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState(); if (NetworkInfo.State.CONNECTED == state) { Log.i("通知", "GPRS網(wǎng)絡(luò)已連接"); Toast.makeText(this, "GPRS網(wǎng)絡(luò)已連接", Toast.LENGTH_SHORT).show(); } state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState(); if (NetworkInfo.State.CONNECTED == state) { Log.i("通知", "WIFI網(wǎng)絡(luò)已連接"); Toast.makeText(this, "WIFI網(wǎng)絡(luò)已連接", Toast.LENGTH_SHORT).show(); } //// 跳轉(zhuǎn)到無(wú)線網(wǎng)絡(luò)設(shè)置界面 // startActivity(new // Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS)); //// 跳轉(zhuǎn)到無(wú)限wifi網(wǎng)絡(luò)設(shè)置界面 // startActivity(new // Intent(android.provider.Settings.ACTION_WIFI_SETTINGS)); }
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