Android 全局字体设置

1.在 baseActivity 设置

    float fontScale=1.4f;
    @Override
    public Resources getResources() {
        //全局字体设置
        Resources res = super.getResources();
        Configuration configuration = res.getConfiguration();
        configuration.fontScale = fontScale;
        res.updateConfiguration(configuration, res.getDisplayMetrics());
        return res;
    }

2.重起所有 Activity 

recreate()