Android development: some basic but useful knowledge (2)

1. onItemLongClick and onItemClick event Interception

To obtain both the onItemLongClick event and onItemClick event of a listview entry, you only need to return true in the onItemLongClick event trigger function.

2. Customize the CheckBox Style

Add the android: button attribute to the layout file. <喎?http: www.bkjia.com kf ware vc " target="_blank" class="keylink"> VcD4KPHA + PHByZSBjbGFzcz0 = "brush: java;"> Checkbox_selector.xml

Checkbox_selected_selector.xml

Checkbox_blank_selector.xml

3. The focus of a button or checkBox Item in ListView

When you customize a ListView, each Item contains a Button component or other component that can be clicked (usually button and checkbox) in addition to the text. When you click this item, it may not respond, this is because the focus is obtained by the button component. When you click an item, it is actually equivalent to clicking the button component.

Solution: add the following content to the root layout of the item.

Android: descendantFocusability = "blocksDescendants"

You can also add the following content to the button component:

android:focusable="false"