android判断当前手机是否是小米

public class MIUIUtils {
    // 检测MIUI
    private static final String KEY_MIUI_VERSION_CODE = "ro.miui.ui.version.code";
    private static final String KEY_MIUI_VERSION_NAME = "ro.miui.ui.version.name";
    private static final String KEY_MIUI_INTERNAL_STORAGE = "ro.miui.internal.storage";
    public static boolean isMIUI() {
//        if(SPUtils.getInstance().getCacheDataSP().contains("isMIUI"))
//        {
//            return SPUtils.getInstance().getCacheDataSP().getBoolean("isMIUI",false);
//        }
        Properties prop= new Properties();
        boolean isMIUI;
        try {
            prop.load(new FileInputStream(new File(Environment.getRootDirectory(), "build.prop")));
        } catch (IOException e)
        {
            e.printStackTrace();
            return false;
        }
        isMIUI= prop.getProperty(KEY_MIUI_VERSION_CODE, null) != null
                || prop.getProperty(KEY_MIUI_VERSION_NAME, null) != null
                || prop.getProperty(KEY_MIUI_INTERNAL_STORAGE, null) != null;
//        SPUtils.getInstance().putCacheData("isMIUI",isMIUI);//保存是否MIUI
        return isMIUI;
    }}