implementation 'com.lxj:statelayout:最新版本号'

val stateLayout = StateLayout(this)
            .wrap(this)
            .showLoading()

val layout2 = StateLayout(this)
            .wrap(view)
            .showLoading()

stateLayout.showLoading()
stateLayout.showContent() //default state
stateLayout.showError()
stateLayout.showEmpty()

<com.lxj.statelayout.StateLayout
            android:id="@+id/slInLayout"
            android:layout_marginBottom="40dp"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
            <TextView
                android:id="@+id/tvInLayout"
                android:gravity="center"
                android:text="测试布局中使用"
                android:background="#9f00"
                android:textColor="#fff"
                android:textSize="20sp"
                android:layout_width="match_parent"
                android:layout_height="150dp"/>
        </com.lxj.statelayout.StateLayout>

StateLayout(this)
    .config(loadingLayoutId = R.layout.custom_loading, //自定义加载中布局
            errorLayoutId = R.layout.custom_error, //自定义加载失败布局
            emptyLayoutId = R.layout.custom_empty, //自定义数据位为空的布局
            useContentBgWhenLoading = true, //加载过程中是否使用内容的背景，默认false
            enableLoadingShadow = true, //加载过程中是否启用半透明阴影盖在内容上面，默认false
            defaultShowLoading = true, //是否初始显示loading状态，默认显示的是Content
            enableTouchWhenLoading = true, //显示loading状态是否允许触摸，默认false
            noEmptyAndError = true, //是否去除Empty和Error状态，有时候只需要一个Loading状态，可以减少内存，默认false
            showLoadingOnce = false, //是否只显示一次Loading，在某些时候需要，默认false
            retryAction = { //点击errorView的回调
                Toast.makeText(this, "点击了重试", Toast.LENGTH_SHORT).show()
            })
    .wrap(view)
    .showLoading()

StateLayoutConfig.init(...)

private var stateLayout: StateLayout? = null
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
    if (fragmentView==null) {
        fragmentView = inflater.inflate(getLayoutId(), container, false)
        stateLayout = StateLayout(context!!)
                .wrap(fragmentView)
                .showLoading()
    }
    return stateLayout
}