Android PopupWindow运用小结

先看API：http://developer.android.com/reference/android/widget/PopupWindow.html#setAnimationStyle(int)

A popup window that can be used to display an arbitrary view. The popup window is a floating container that appears on top of the current activity.

PopupWindow是一个弹出式窗口，它可以展示任意View。他会浮在当前窗口的上方展示。

常用接口例子：

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private void iniPopupWindow() {		View layout = LayoutInflater.from(mActivity).inflate(R.layout.conversation_popupwindow, null);		mBtnMyPos = (Button) layout.findViewById(R.id.myPos);		mBtnMapSet = (Button) layout.findViewById(R.id.mapSet);		mBtnKeySearch = (Button) layout.findViewById(R.id.keySearch);		mBtnCollection = (Button) layout.findViewById(R.id.collection);		mImMyPos = (ImageView) layout.findViewById(R.id.myPosbg);		mImMapSet = (ImageView) layout.findViewById(R.id.mapSetbg);		mImKeySearch = (ImageView) layout.findViewById(R.id.keySearchbg);		mImCollection = (ImageView) layout.findViewById(R.id.colbg);		mPopupWindow = new PopupWindow(layout);		mPopupWindow.setFocusable(true);		mPopupWindow.setTouchable(true);		layout.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);		mPopupWindow.setWidth(layout.getMeasuredWidth());		mPopupWindow.setHeight((layout.getMeasuredHeight()));//		popupwindow要有背景图片OutsideTouchable、keyback才有效//		mPopupWindow.setBackgroundDrawable(new BitmapDrawable());		mPopupWindow.setBackgroundDrawable(this.getResources().getDrawable(android.R.color.transparent));//		触摸popupwindow外部，可以消失。必须设置背景		mPopupWindow.setOutsideTouchable(true);		mPopupWindow.setAnimationStyle(android.R.style.Animation_Toast);		mPopupWindow.update();		mPopupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {						@Override			public void onDismiss() {				if(mBtnPos.isSelected()){					mBtnPos.setSelected(false);					resetBtnState();				}			}		});	}

?其中layout是自定义布局，PopupWindow可以任意展示，使用非常方便。

开启or关闭：

if (mPopupWindow.isShowing()) {					mPopupWindow.dismiss();// 关闭				} else {					mPopupWindow.showAsDropDown(mBtnPos);// 显示				}

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