获取Android唯一设备号

public class SystemPropertiesInvoke {
private static final String TAG = “SystemPropertiesInvoke”;
private static Method getLongMethod = null;
private static Method getBooleanMethod = null;

public static long getLong(final String key, final long def) {
    try {
        if (getLongMethod == null) {
            getLongMethod = Class.forName("android.os.SystemProperties")
                    .getMethod("getLong", String.class, long.class);
        }

        return ((Long) getLongMethod.invoke(null, key, def)).longValue();
    } catch (Exception e) {
        Log.e(TAG, "Platform error: " + e.toString());
        return def;
    }
}

public static boolean getBoolean(final String key, final boolean def) {
    try {
        if (getBooleanMethod == null) {
            getBooleanMethod = Class.forName("android.os.SystemProperties")
                    .getMethod("getBoolean", String.class,boolean.class);
        }

return (Boolean)getBooleanMethod.invoke(null, key, def);
} catch (Exception e) {
Log.e(TAG, “Platform error: ” + e.toString());
return def;
}
}

public static String getString(final String key, final String def) {
    try {
        if (getBooleanMethod == null) {
            getBooleanMethod = Class.forName("android.os.SystemProperties")
                    .getMethod("getString", String.class,boolean.class);
        }
return (String)getBooleanMethod.invoke(null, key, def);
    } catch (Exception e) {
        Log.e(TAG, "Platform error: " + e.toString());
        return def;
    }
}

}

调用方式
String serial = SystemPropertiesInvoke.getString(“gsm.serial”, “”);
Log.i(“TAG”, “serial==========” + serial);
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