轉載：http://orgcent.com/android-popupwindow-usage/
在Android中有很多級別的Window，不同級別的Window按照z-index方向分布。下面看看Android控件(view)PopupWindow的用法(位置、動畫、焦點)。
1、創建PopouWindow及相關參數設置
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//創建一個包含自定義view的PopupWindow
private PopupWindow makePopupWindow ( Context cx ) { PopupWindow window ; window = new PopupWindow (cx ) ; TextView contentView = new TextView (cx ) ; contentView. setGravity (Gravity. CENTER ) ; final Resources res = cx. getResources ( ) ; // contentView.setBackgroundColor(R.color.page_window_bgcolor); // window.setBackgroundDrawable(new // ColorDrawable(res.getColor(R.color.page_window_bgcolor))); contentView. setLayoutParams ( new LayoutParams (LayoutParams. WRAP_CONTENT, LayoutParams. WRAP_CONTENT ) ) ; //設置PopupWindow顯示和隱藏時的動畫 window. setAnimationStyle (R. style. AnimationFade ) ; //設置PopupWindow的大小（寬度和高度） window. setWidth (res. getDimensionPixelSize (R. dimen. page_window_width ) ) ; window. setHeight (res. getDimensionPixelSize (R. dimen. page_window_height ) ) ; //設置PopupWindow的內容view window. setContentView (contentView ) ; //設置PopupWindow外部區域是否可觸摸 window. setOutsideTouchable ( true ) ; return window ; } |
2、PopupWindow顯示和隱藏的動畫設置
XML配置代碼：
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<!-- PopupWindow窗口淡入淡出動畫 -->
<style name="AnimationFade"> <item name="android:windowEnterAnimation">@anim/fade_in </item> <item name="android:windowExitAnimation">@anim/fade_out </item> </style> |
JAVA代碼：
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window.
setAnimationStyle
(R.
style.
AnimationFade
)
;
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3、PopupWindow的焦點設置
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window.
setFocusable
(
true
)
;
//設置PopupWindow可獲得焦點
window. setTouchable ( true ) ; //設置PopupWindow可觸摸 window. setOutsideTouchable ( true ) ; //設置非PopupWindow區域可觸摸 |
4、PopupWindow的顯示及顯示位置設置
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window.
showAtLocation
(
)
;
window. showAsDropDown ( ) ; |