什么是Toast

Toast是用来短时显示提示信息并自动消失的UI控件. 默认一般显示在屏幕的下方.

基础样例

1. 显示默认toast

• 效果图:
  
• 代码:

new ToastDialog(getContext()).setText("花生皮编程，哈哈").show();

2. 在顶部显示toast

• 效果图:
  
• 代码:

ToastDialog dialog = new ToastDialog(getContext());
dialog.setText("花生皮编程，哈哈");
dialog.setAlignment(LayoutAlignment.TOP);
dialog.show();

3. 居中显示toast

• 效果图:
  
• 代码:

ToastDialog dialog = new ToastDialog(getContext());
dialog.setText("花生皮编程，哈哈");
dialog.setAlignment(LayoutAlignment.CENTER);
dialog.show();

完整源代码

https://gitee.com/hspbc/harmonyos_demos/tree/master/toastDemo