Android-沉浸式状态栏的实现

1、取得状态栏的高度值

/**
     * 获取状态栏的高度
     * @return
     */
    protected int getstatusbarheight(){

        try {
            //通过反射获取到类
            class<?> aclass = class.forname("com.android.internal.r$dimen");
            //创建对象
            object o = aclass.newinstance();
            //拿取属性
            field status_bar_height = aclass.getfield("status_bar_height");
            //获取值
            object o1 = status_bar_height.get(o);
            int height = integer.parseint(o1.tostring());
            //
            return getresources().getdimensionpixelsize(height);
        } catch (exception e) {
            e.printstacktrace();
        }
        return 0 ;
    }

 

2、设置沉浸式状态栏（状态栏设置透明后，将顶层布局高度动态增加状态栏的高度）

 /**
     * 系统版本4.4或以上才可以设置沉浸式状态栏
     *
     * 设置沉浸式状态栏
     */
    private void setstatus(){
        if(build.version.sdk_int >= build.version_codes.kitkat) {
            //设置状态栏透明
            getwindow().addflags(windowmanager.layoutparams.flag_translucent_status);
            //设置导航栏透明（如需要设置导航栏）
            getwindow().addflags(windowmanager.layoutparams.flag_translucent_navigation);

            bar_layout = (viewgroup) findviewbyid(r.id.bar_layout);
            final int statusbarheight = getstatusbarheight();
            bar_layout.post(new runnable() {
                @override
                public void run() {
                    int height = bar_layout.getheight();
                    viewgroup.layoutparams layoutparams = bar_layout.getlayoutparams();

                    layoutparams.height = statusbarheight + height ;
                    bar_layout.setlayoutparams(layoutparams);
                }
            });
        }
    }