1、创建一个tosat显示的布局文件：toast_custom.xml

<?xml version="1.0" encoding="utf-8"?>
<com.hjq.shape.layout.ShapeLinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="wrap_content"android:layout_height="wrap_content"xmlns:app="http://schemas.android.com/apk/res-auto"android:gravity="center"android:orientation="vertical"android:paddingVertical="@dimen/dp_20"android:paddingHorizontal="@dimen/dp_30"app:shape_radius="@dimen/dp_10"app:shape_solidColor="#B3000000"><ImageViewandroid:id="@+id/toast_icon"android:layout_width="@dimen/dp_56"android:layout_height="@dimen/dp_56"android:src="@mipmap/toast_icon" /><TextViewandroid:id="@+id/toast_text"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="10dp"android:gravity="center"android:text="保存成功"android:textColor="@color/white"android:textSize="16sp" />
</com.hjq.shape.layout.ShapeLinearLayout>

2.通过代码显示出来：

  private fun showToast(text : String = "保存成功") {Toast(applicationContext).apply {duration = Toast.LENGTH_SHORTview = layoutInflater.inflate(R.layout.toast_custom, null)val tv = view?.findViewById<TextView>(R.id.toast_text)tv?.text = textshow()}}

直接调用方法就行！