我們可以給LinearLayout以及一切繼承自View的控件,設置View.onClickListener監聽,例如LInearLayout。
但是我們發現LinearLayout可以執行監聽方法體,但是沒有點擊效果。
所謂的點擊效果就是當我們用鼠標點擊控件時,可以高亮或者動一下,給用戶一個操作反饋。
如何給LinearLayout實現上述效果那,最簡單的就是給LinearLayout配置上以下屬性
style="?android:attr/actionButtonStyle" style="?android:attr/actionButtonStyle"
那麼我們的按鈕就具有瞭Button的樣式效果。點擊等操作和Button一樣。
另外:我們也可以配置一個文件,在文件內配置上點擊時圖片效果,按下時圖片效果等,例如:
?<selector xmlns:android="https://schemas.android.com/apk/res/android" |~ android:exitFadeDuration="@android:integer/config_mediumAnimTime"> |~ |~ <!-- Even though these two point to the same resource, have two states so the drawable will invalidate itself when coming out of |~ pressed state. --> |~ <item android:state_focused="true" android:state_enabled="false" android:state_pressed="true" android:drawable="@drawable/ |~ list_selector_disabled_holo_dark" /> |~ <item android:state_focused="true" android:state_enabled="false" android:drawable="@drawable/ |~ list_selector_disabled_holo_dark" /> |~ <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/ |~ list_selector_background_transition_holo_dark" /> |~ <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/ |~ list_selector_background_transition_holo_dark" /> |~ <item android:state_focused="true" android:drawable="@drawable/ |~ list_focused_holo" /> |~ <item android:drawable="@color/transparent" /|~ > |~ </selector> <selector xmlns:android="https://schemas.android.com/apk/res/android" |~ android:exitFadeDuration="@android:integer/config_mediumAnimTime"> |~ |~ <!-- Even though these two point to the same resource, have two states so the drawable will invalidate itself when coming out of |~ pressed state. --> |~ <item android:state_focused="true" android:state_enabled="false" android:state_pressed="true" android:drawable="@drawable/ |~ list_selector_disabled_holo_dark" /> |~ <item android:state_focused="true" android:state_enabled="false" android:drawable="@drawable/ |~ list_selector_disabled_holo_dark" /> |~ <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/ |~ list_selector_background_transition_holo_dark" /> |~ <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/ |~ list_selector_background_transition_holo_dark" /> |~ <item android:state_focused="true" android:drawable="@drawable/ |~ list_focused_holo" /> |~ <item android:drawable="@color/transparent" /|~ > |~ </selector>