1. 设置H5页面中字体大小不跟随手机系统

 WebSettings webSettings = webView.getSettings();
  webSettings.setTextZoom(100);

1. 设置原生APP字体不跟随系统字体而变化

在acvitity的父类中重写getResource方法

 @Override
    public Resources getResources() {
        Resources resources = super.getResources();
        Configuration configuration = new Configuration();
        configuration.setToDefaults();
        resources.updateConfiguration(configuration, resources.getDisplayMetrics());
        return resources;
    }