popupWindow.showAsDropDown(morebutton, xOffset, yOffset);
无论xOffset的值如何,弹出窗口都在屏幕显示的右侧
final PopupWindow popupWindow = new PopupWindow(DashboardActivity.applicationContext);
LayoutInflater inflater = (LayoutInflater) DashboardActivity.applicationContext.getSystemService(
Context.LAYOUT_INFLATER_SERVICE);
popupWindow.setFocusable(true);
popupWindow.setWidth(WindowManager.LayoutParams.WRAP_CONTENT);
popupWindow.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
popupWindow.setContentView(view);
popupWindow.setBackgroundDrawable(new ColorDrawable(
android.graphics.Color.TRANSPARENT));
popupWindow.showAsDropDown(morebutton, **-220**, -40);
无论我设置什么值 offsetX,他都在屏幕显示的右侧
默认情况下,
PopupWindow
尝试将contentView
与anchor
的Gravity.TOP | Gravity.START
对齐(左上角(。如果没有空间留给您的contentView
它会偏移以适应屏幕,这可能就是它留在您的右侧的原因。
以下 xOffset 将contentView
对齐anchor
的右上角:
view.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
int xOffset = -(view.getMeasuredWidth() - morebutton.getWidth());
popupWindow.showAsDropDown(morebutton, xOffset, 0);
您可能需要类似以下内容:
popupWindow.showAsDropDown(morebutton, xOffset - 220, -40);