如何在Android中調整PopupWindow寬度

Question

我想在textview上的特定位置播放彈出窗口（textview位於scrollview內）。我的PopupWindow佈局只包含一個列表視圖。我使用下面的代碼來調整PopupWindow寬度和高度。 PopupWindow高度正確，但寬度不正確。它在不同的設備上顯示不同。它也不會扭曲列表視圖內容的寬度。

final PopupWindow attachmentPopup = new PopupWindow(this); 
LayoutInflater layoutInflater = getLayoutInflater(); 
View popupView = layoutInflater.inflate(R.layout.popupwindow, null); 
ListView lv = (ListView) popupView.findViewById(R.id.listView); 
final ArrayList<CustomItem> popupItems = new ArrayList<CustomItem>(); 
final CustomAdapter popupAdapter = new CustomAdapter(popupItems, Details.this); 
CustomItem item; 
item = new CustomItem(); 
item.setName("Apple"); 
popupItems.add(item); 
item = new CustomItem(); 
item.setName("Orange");   
popupItems.add(item); 
lv.setAdapter(popupAdapter); 
int popupWidth = ViewGroup.LayoutParams.WRAP_CONTENT; 
int popupHeight = ViewGroup.LayoutParams.WRAP_CONTENT; 
attachmentPopup.setFocusable(true); 
attachmentPopup.setWidth(popupWidth); 
attachmentPopup.setHeight(popupHeight); 
attachmentPopup.setContentView(popupView); 
attachmentPopup.setBackgroundDrawable(new BitmapDrawable()); 
attachmentPopup.showAtLocation(popupView, Gravity.TOP | Gravity.LEFT, mx, my); 

popupwindow.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:background="#9acd32" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"> 

    <ListView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:id="@+id/listView" /> 

</LinearLayout> 

Answer 1

能否請您試試這個

int popupWidth = ViewGroup.LayoutParams.WRAP_CONTENT; 
int popupHeight = ViewGroup.LayoutParams.WRAP_CONTENT; 

與

int popupWidth = WindowManager.LayoutParams.WRAP_CONTENT; 
int popupHeight = WindowManager.LayoutParams.WRAP_CONTENT;