Question

Toast 使用就一行代码：

  Toast.makeText(ToastActivity.this,"Toast 源码解析",Toast.LENGTH_LONG).show();

Toast 提供了 setView 方法，可以自定义 View：

  Toast toast=new Toast(ToastActivity.this);
  View view=View.inflate(ToastActivity.this,R.layout.toast_view,null);
  toast.setView(view);
  toast.setGravity(Gravity.CENTER,0,0);
  toast.show();
  

toast_view.xml

  <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical">
    
      <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@mipmap/ic_launcher" />
  </LinearLayout>