public class CustomPopWindow implements PopupWindow.OnDismissListener{
private static final float DEFAULT_ALPHA = 0.7f;
private Context mContext;
private int mWidth;
private int mHeight;
private boolean mIsFocusable = true;
private boolean mIsOutside = true;
private int mResLayoutId = -1;
private View mContentView;
private PopupWindow mPopupWindow;
private int mAnimationStyle = -1;
private boolean mClippEnable = true;//default is true
private boolean mIgnoreCheekPress = false;
private int mInputMode = -1;
private PopupWindow.OnDismissListener mOnDismissListener;
private int mSoftInputMode = -1;
private boolean mTouchable = true;//default is ture
private View.OnTouchListener mOnTouchListener;
private Window mWindow;//当前Activity 的窗口
/**
* 弹出PopWindow 背景是否变暗，默认不会变暗。
*/
private boolean mIsBackgroundDark = false;
private float mBackgroundDrakValue = 0;// 背景变暗的值，0 - 1
private CustomPopWindow(Context context){
mContext = context;
}
public int getWidth() {
return mWidth;
}
public int getHeight() {
return mHeight;
}
/**
*
* @param anchor
* @param xOff
* @param yOff
* @return
*/
public CustomPopWindow showAsDropDown(View anchor, int xOff, int yOff){
if(mPopupWindow!=null){
mPopupWindow.showAsDropDown(anchor,xOff,yOff);
}
return this;
}
public CustomPopWindow showAsDropDown(View anchor){
if(mPopupWindow!=null){
mPopupWindow.showAsDropDown(anchor);
}
return this;
}
@RequiresApi(api = Build.VERSION_CODES.KITKAT)
public CustomPopWindow showAsDropDown(View anchor, int xOff, int yOff, int gravity){
if(mPopupWindow!=null){
mPopupWindow.showAsDropDown(anchor,xOff,yOff,gravity);
}
return this;
}
/**
* 相对于父控件的位置（通过设置Gravity.CENTER，下方Gravity.BOTTOM等 ），可以设置具体位置坐标
* @param parent 父控件
* @param gravity
* @param x the popup's x location offset
* @param y the popup's y location offset
* @return
*/
public CustomPopWindow showAtLocation(View parent, int gravity, int x, int y){
if(mPopupWindow!=null){
mPopupWindow.showAtLocation(parent,gravity,x,y);
}
return this;
}
/**
* 添加一些属性设置
* @param popupWindow
*/
private void apply(PopupWindow popupWindow){
popupWindow.setClippingEnabled(mClippEnable);
if(mIgnoreCheekPress){
popupWindow.setIgnoreCheekPress();
}
if(mInputMode!=-1){
popupWindow.setInputMethodMode(mInputMode);
}
if(mSoftInputMode!=-1){
popupWindow.setSoftInputMode(mSoftInputMode);
}
if(mOnDismissListener!=null){
popupWindow.setOnDismissListener(mOnDismissListener);
}
if(mOnTouchListener!=null){
popupWindow.setTouchInterceptor(mOnTouchListener);
}
popupWindow.setTouchable(mTouchable);
}
private PopupWindow build(){
if(mContentView == null){
mContentView = LayoutInflater.from(mContext).inflate(mResLayoutId,null);
}
// 2017.3.17 add
// 获取当前Activity的window
Activity activity = (Activity) mContentView.getContext();
if(activity!=null && mIsBackgroundDark){
//如果设置的值在0 - 1的范围内，则用设置的值，否则用默认值
final float alpha = (mBackgroundDrakValue > 0 && mBackgroundDrakValue < 1) ? mBackgroundDrakValue : DEFAULT_ALPHA;
mWindow = activity.getWindow();
WindowManager.LayoutParams params = mWindow.getAttributes();
params.alpha = alpha;
mWindow.setAttributes(params);
}
if(mWidth != 0 && mHeight!=0 ){
mPopupWindow = new PopupWindow(mContentView,mWidth,mHeight);
}else{
mPopupWindow = new PopupWindow(mContentView, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
}
if(mAnimationStyle!=-1){
mPopupWindow.setAnimationStyle(mAnimationStyle);
}
apply(mPopupWindow);//设置一些属性
mPopupWindow.setFocusable(mIsFocusable);
mPopupWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
mPopupWindow.setOutsideTouchable(mIsOutside);
if(mWidth == 0 || mHeight == 0){
mPopupWindow.getContentView().measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
//如果外面没有设置宽高的情况下，计算宽高并赋值
mWidth = mPopupWindow.getContentView().getMeasuredWidth();
mHeight = mPopupWindow.getContentView().getMeasuredHeight();
}
// 添加dissmiss 监听
mPopupWindow.setOnDismissListener(this);
mPopupWindow.update();
return mPopupWindow;
}
@Override
public void onDismiss() {
dissmiss();
}
/**
* 关闭popWindow
*/
public void dissmiss(){
//如果设置了背景变暗，那么在dissmiss的时候需要还原
if(mWindow!=null){
WindowManager.LayoutParams params = mWindow.getAttributes();
params.alpha = 1.0f;
mWindow.setAttributes(params);
}
if(mPopupWindow!=null && mPopupWindow.isShowing()){
mPopupWindow.dismiss();
}
}
public static class PopupWindowBuilder{
private CustomPopWindow mCustomPopWindow;
public PopupWindowBuilder(Context context){
mCustomPopWindow = new CustomPopWindow(context);
}
public PopupWindowBuilder size(int width,int height){
mCustomPopWindow.mWidth = width;
mCustomPopWindow.mHeight = height;
return this;
}
public PopupWindowBuilder setFocusable(boolean focusable){
mCustomPopWindow.mIsFocusable = focusable;
return this;
}
public PopupWindowBuilder setView(int resLayoutId){
mCustomPopWindow.mResLayoutId = resLayoutId;
mCustomPopWindow.mContentView = null;
return this;
}
public PopupWindowBuilder setView(View view){
mCustomPopWindow.mContentView = view;
mCustomPopWindow.mResLayoutId = -1;
return this;
}
public PopupWindowBuilder setOutsideTouchable(boolean outsideTouchable){
mCustomPopWindow.mIsOutside = outsideTouchable;
return this;
}
/**
* 设置弹窗动画
* @param animationStyle
* @return
*/
public PopupWindowBuilder setAnimationStyle(int animationStyle){
mCustomPopWindow.mAnimationStyle = animationStyle;
return this;
}
public PopupWindowBuilder setClippingEnable(boolean enable){
mCustomPopWindow.mClippEnable =enable;
return this;
}
public PopupWindowBuilder setIgnoreCheekPress(boolean ignoreCheekPress){
mCustomPopWindow.mIgnoreCheekPress = ignoreCheekPress;
return this;
}
public PopupWindowBuilder setInputMethodMode(int mode){
mCustomPopWindow.mInputMode = mode;
return this;
}
public PopupWindowBuilder setOnDissmissListener(PopupWindow.OnDismissListener onDissmissListener){
mCustomPopWindow.mOnDismissListener = onDissmissListener;
return this;
}
public PopupWindowBuilder setSoftInputMode(int softInputMode){
mCustomPopWindow.mSoftInputMode = softInputMode;
return this;
}
public PopupWindowBuilder setTouchable(boolean touchable){
mCustomPopWindow.mTouchable = touchable;
return this;
}
public PopupWindowBuilder setTouchIntercepter(View.OnTouchListener touchIntercepter){
mCustomPopWindow.mOnTouchListener = touchIntercepter;
return this;
}
/**
* 设置背景变暗是否可用
* @param isDark
* @return
*/
public PopupWindowBuilder enableBackgroundDark(boolean isDark){
mCustomPopWindow.mIsBackgroundDark = isDark;
return this;
}
/**
* 设置北京变暗的值
* @param darkValue
* @return
*/
public PopupWindowBuilder setBgDarkAlpha(float darkValue){
mCustomPopWindow.mBackgroundDrakValue = darkValue;
return this;
}
public CustomPopWindow create(){
//构建PopWindow
mCustomPopWindow.build();
return mCustomPopWindow;
}
}
}
用法
private void showPopTop(){
CustomPopWindow popWindow = new CustomPopWindow.PopupWindowBuilder(this)
.setView(R.layout.pop_layout2)
.enableBackgroundDark(true)
.setBgDarkAlpha(0.9f)
.create();
popWindow .showAsDropDown(mButton2,0, - (mButton2.getHeight() + popWindow.getHeight()));
//popWindow.showAtLocation(mButton1, Gravity.NO_GRAVITY,0,0);
}
private void showPopMenu(){
View contentView = LayoutInflater.from(this).inflate(R.layout.pop_menu,null);
//处理popWindow 显示内容
handleLogic(contentView);
//创建并显示popWindow
mCustomPopWindow= new CustomPopWindow.PopupWindowBuilder(this)
.setView(contentView)
.enableBackgroundDark(true) //弹出popWindow时，背景是否变暗
.create()
.showAsDropDown(mButton3,0,20);
}
private void showPopListView(){
View contentView = LayoutInflater.from(this).inflate(R.layout.pop_list,null);
//处理popWindow 显示内容
handleListView(contentView);
//创建并显示popWindow
mListPopWindow= new CustomPopWindow.PopupWindowBuilder(this)
.setView(contentView)
.size(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.MATCH_PARENT)//显示大小
.create()
.showAsDropDown(mButton4,0,20);
}
private void handleListView(View contentView){
RecyclerView recyclerView = (RecyclerView) contentView.findViewById(R.id.recyclerView);
LinearLayoutManager manager = new LinearLayoutManager(this);
manager.setOrientation(LinearLayoutManager.VERTICAL);
recyclerView.setLayoutManager(manager);
MyAdapter adapter = new MyAdapter();
adapter.setData(mockData());
recyclerView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
http://www.jianshu.com/p/9304d553aa67