android popupwindow 位置显示
1、在控件的上方:
private void showPopUp(View v) { LinearLayout layout = new LinearLayout(this); layout.setBackgroundColor(Color.GRAY); TextView tv = new TextView(this); tv.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT)); tv.setText("I‘m a pop -----------------------------!"); tv.setTextColor(Color.WHITE); layout.addView(tv); popupWindow = new PopupWindow(layout,120,120); popupWindow.setFocusable(true); popupWindow.setOutsideTouchable(true); popupWindow.setBackgroundDrawable(new BitmapDrawable()); int[] location = new int[2]; v.getLocationOnScreen(location); popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0], location[1]-popupWindow.getHeight()); }
在控件的其他方向上显示只需修改最后一行代码即可,如:
2、下方:
popupWindow.showAsDropDown(v);
在下方,其它方法
int[] location = new int[2]; v.getLocationOnScreen(location);
popupWindow.showAtLocation(v, Gravity.TOP, 0,location[1]+v.getHeight());
3、左边:
popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0]-popupWindow.getWidth(), location[1]);
4、右边:
popupWindow.showAtLocation(v, Gravity.NO_GRAVITY, location[0]+v.getWidth(), location[1]);
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