android PopupWindow 自適應寬度

標籤：

PopupWindow彈出的菜單隨內容的寬度決定，目前找到自認為比較好的辦法是，重寫ListView的onMeasure()方法。然後就可以實現了，在此mark一下。

@Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {             int maxWidth = meathureWidthByChilds() + getPaddingLeft() + getPaddingRight(); super.onMeasure(MeasureSpec.makeMeasureSpec(maxWidth,MeasureSpec.EXACTLY),heightMeasureSpec);   }      public int meathureWidthByChilds() {           int maxWidth = 0;          View view = null;      for (int i = 0; i < getAdapter().getCount(); i++) {            view = getAdapter().getView(i, view, this);                view.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);           if (view.getMeasuredWidth() > maxWidth){                 maxWidth = view.getMeasuredWidth();          }         }          return maxWidth;  }

android PopupWindow 自適應寬度