Android平板获取唯一标识DeviceId
16lz
2021-01-23
Android设备获取唯一标识DeviceId
import android.annotation.SuppressLint;import android.content.Context;import android.content.SharedPreferences;import android.provider.Settings;import android.telephony.TelephonyManager;import java.io.UnsupportedEncodingException;import java.util.UUID;public class DeviceUuidFactory { public static final String PREFS_FILE = "device_id.xml"; public static final String PREFS_DEVICE_ID = "device_id"; public static UUID uuid; public static void DeviceUuidFactory(Context context) { if( uuid ==null ) { synchronized (DeviceUuidFactory.class) { if( uuid == null) { //读取厂家写入地址 final SharedPreferences prefs = context.getSharedPreferences( PREFS_FILE, 0); final String id = prefs.getString(PREFS_DEVICE_ID, null ); if (id != null) { // Use the ids previously computed and stored in the prefs file uuid = UUID.fromString(id); Common.DEVICE_ID = uuid+""; } else { final String androidId = Settings.Secure.getString( context.getContentResolver(), Settings.Secure.ANDROID_ID); // Use the Android ID unless it's broken, in which case fallback on deviceId, // unless it's not available, then fallback on a random number which we store // to a prefs file try { if (!"9774d56d682e549c".equals(androidId)) { uuid = UUID.nameUUIDFromBytes(androidId.getBytes("utf8")); } else { @SuppressLint("MissingPermission") final String deviceId = ((TelephonyManager) context.getSystemService( Context.TELEPHONY_SERVICE )).getDeviceId(); uuid = deviceId!=null ? UUID.nameUUIDFromBytes( deviceId.getBytes("utf8")) : UUID.randomUUID(); } } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); } Common.DEVICE_ID = uuid.toString(); // Write the value out to the prefs file prefs.edit().putString(PREFS_DEVICE_ID, uuid.toString() ).commit(); } } } } }更多相关文章
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