Android - 判斷網路狀態

標籤：mystra   android   網路狀態   

Android手機同時支援WIFI和3G, 判斷網路連接, 判斷網路類型(WIFI或3G).

許可權:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

判斷網路連接

    /**     * 判斷網路是否可用, 在使用網路請求是預先使用此方法進行檢查, 以節省資源.     *     * @return 可用狀態     */    public static boolean isNetAvailable() {        Context context = App.getAppContext();        ConnectivityManager manager = (ConnectivityManager)             context.getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo info = manager.getActiveNetworkInfo();        return (info != null && info.isAvailable() && info.isConnected());    }

判斷網路類型

ConnectivityManager conMan = (ConnectivityManager)     context.getSystemService(Context.CONNECTIVITY_SERVICE);// 3GState mobile = conMan.getNetworkInfo(0).getState();// WIFIState wifi = conMan.getNetworkInfo(1).getState();if (mobile == NetworkInfo.State.CONNECTED     || mobile == NetworkInfo.State.CONNECTING) {    // TODO: in mobile do something} else if (wifi == NetworkInfo.State.CONNECTED             || wifi == NetworkInfo.State.CONNECTING) {    // TODO: in wifi do something}

更加精細的網路類型:
TelephonyManager#getNetworkType or NetworkInfo#getSubtypeName

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Android - 判斷網路狀態