沉浸式页面效果

设置状态栏背景透明

setStatusBarBackgroundColor(window, Color.parseColor("#00000000");

设置状态栏字体颜色

setStatusBarTextColor(window, true);

设置DecorView全屏

public static void setDecorViewFullScreen(Window window) {
    View decor = window.getDecorView();
    int ui = decor.getSystemUiVisibility();
    ui |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
    ui |= View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
    decor.setSystemUiVisibility(ui);  
}

针对Toolbar(系统或者自定义)，留出顶部状态栏的高度

• 1.当DecorView设置SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN时，会消费子View的fitsSystemWindows属性，把此View顶部增加Padding为StatusBar高度
• 2.在代码中设置顶部Toolbar的高度或者余留高度