版权声明
本文来自博客园，作者：观心静 ，转载请注明原文链接：https://www.cnblogs.com/guanxinjing/p/12746009.html
本文版权归作者和博客园共有，欢迎转载，但必须给出原文链接，并保留此段声明，否则保留追究法律责任的权利。
前言
这里有一些我实际使用PopupWindow开发的一些例子，分享大家开拓思路使用。此篇博客只有代码例子，无其他入门讲解，如果你需要学习，请参考我的另一篇博客：https://www.cnblogs.com/guanxinjing/p/10156153.html
例子1
类似长按文本弹出的处理文本的复制，黏贴，剪切，这种迷你对话框。代码较多，我放到github上了
github地址：https://github.com/z3880341/buttonDialog
例子2
效果图
没有PopupWindow对话框时：
PopupWindow对话框出现时：
dialog_family_list.xml
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@android:color/transparent"> <ImageView android:id="@+id/line1" android:layout_width="0dp" android:layout_height="1dp" android:background="@color/white" android:paddingLeft="20dp" android:src="@drawable/line_black" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toTopOf="parent"/> <TextView android:id="@+id/not_family" android:layout_width="0dp" android:layout_height="wrap_content" android:drawableLeft="@drawable/ic_family_1" android:drawablePadding="13dp" android:gravity="center_vertical|left" android:paddingLeft="14dp" android:paddingTop="14dp" android:paddingBottom="14dp" android:text="@string/no_family_created_yet" android:textColor="@color/color_2C" android:textSize="16sp" android:visibility="gone" android:background="@color/white" app:layout_constraintTop_toBottomOf="@id/line1" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent"/> <androidx.recyclerview.widget.RecyclerView android:id="@+id/family_list_recyclerview" android:layout_width="match_parent" android:layout_height="0dp" android:background="@color/ColorWhite" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toBottomOf="@id/not_family" /> <ImageView android:id="@+id/line2" android:layout_width="0dp" android:layout_height="1dp" android:background="@color/white" android:paddingLeft="20dp" android:src="@drawable/line_black" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toBottomOf="@id/family_list_recyclerview" /> <View android:id="@+id/translucent_bg" android:layout_width="0dp" android:layout_height="0dp" android:background="@color/color_80000000" app:layout_constraintTop_toBottomOf="@id/line2" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent"/> <TextView android:id="@+id/family_list" android:layout_width="0dp" android:layout_height="wrap_content" android:drawableLeft="@drawable/ic_family_3" android:drawablePadding="13dp" android:gravity="center_vertical|left" android:paddingLeft="14dp" android:paddingTop="14dp" android:paddingBottom="14dp" android:text="@string/family_list" android:textColor="@color/color_2C" android:textSize="16sp" android:background="@drawable/bg_family_list" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toBottomOf="@id/line2" /> </androidx.constraintlayout.widget.ConstraintLayout>
java
public class FamilyListDialog extends PopupWindow { private View mView; private TextView mNotFamily; private RecyclerView mFamilyListRecyclerview; private TextView mFamilyList; private View mTranslucentBg; private FamilyListDialogAdapter mFamilyListDialogAdapter; private FamilyListDialogListener mListener; private int mHeightPixels; private List<FamilyBean> mFamilyBeanList; public FamilyListDialog(@NotNull Context context) { super(); DisplayMetrics outMetrics = new DisplayMetrics(); ((Activity) context).getWindowManager().getDefaultDisplay().getRealMetrics(outMetrics); setWidth(outMetrics.widthPixels); mHeightPixels = outMetrics.heightPixels; setHeight(mHeightPixels); mView = LayoutInflater.from(context).inflate(R.layout.dialog_family_list, null, false); mNotFamily = (TextView) mView.findViewById(R.id.not_family); mFamilyListRecyclerview = (RecyclerView) mView.findViewById(R.id.family_list_recyclerview); mFamilyList = (TextView) mView.findViewById(R.id.family_list); mTranslucentBg = (View) mView.findViewById(R.id.translucent_bg); adaptiveRecyclerViewHeight(5, context); mFamilyListDialogAdapter = new FamilyListDialogAdapter(); mFamilyListRecyclerview.setAdapter(mFamilyListDialogAdapter); setContentView(mView); initListener(); } @Override public void showAsDropDown(View anchor) { if(Build.VERSION.SDK_INT >= 24) { Rect rect = new Rect(); anchor.getGlobalVisibleRect(rect); DisplayMetrics outMetrics = new DisplayMetrics(); Context context = anchor.getContext(); ((Activity) context).getWindowManager().getDefaultDisplay().getRealMetrics(outMetrics); int h = outMetrics.heightPixels - rect.bottom; setHeight(h); } super.showAsDropDown(anchor); } private void initListener() { mTranslucentBg.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dismiss(); } }); mNotFamily.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (mListener != null) { mListener.onClickNotFamily(); } } }); mFamilyList.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (mListener != null) { mListener.onClickFamilyList(mFamilyBeanList); } } }); mFamilyListDialogAdapter.setOnItemClickListener(new FamilyListDialogAdapter.OnItemClickListener() { @Override public void OnItemClick(FamilyBean clickFamilyBean, boolean isConfirm) { if (mListener != null) { mListener.onClickFamilyListItem(clickFamilyBean, isConfirm); } } }); } public void setData(List<FamilyBean> list) { mFamilyBeanList = list; if (list == null || list.isEmpty()) { mFamilyListDialogAdapter.clearData(); mFamilyListRecyclerview.setVisibility(View.GONE); mNotFamily.setVisibility(View.VISIBLE); return; } mNotFamily.setVisibility(View.GONE); mFamilyListRecyclerview.setVisibility(View.VISIBLE); mFamilyListDialogAdapter.refreshData(list); } /** * 自适应列表View在到指定数量item后固定高度, * * @param targetNum */ private void adaptiveRecyclerViewHeight(int targetNum, Context context) { mFamilyListRecyclerview.setLayoutManager(new LinearLayoutManager(context) { @Override public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) { int count = state.getItemCount(); if (count > 0) { if (count > targetNum) { count = targetNum; } int realHeight = 0; int realWidth = 0; for (int i = 0; i < count; i++) { View view = recycler.getViewForPosition(0); if (view != null) { measureChild(view, widthSpec, heightSpec); int measuredWidth = View.MeasureSpec.getSize(widthSpec); int measuredHeight = view.getMeasuredHeight(); realWidth = realWidth > measuredWidth ? realWidth : measuredWidth; realHeight = realHeight + measuredHeight; } } setMeasuredDimension(realWidth, realHeight); } else { super.onMeasure(recycler, state, widthSpec, heightSpec); } } }); } /** * 销毁,主要释放接口 */ public void destroy() { mListener = null; } /** * 设置监听器 * * @param mListener */ public void setListener(FamilyListDialogListener mListener) { this.mListener = mListener; } public interface FamilyListDialogListener { /** * 点击没有家庭 */ void onClickNotFamily(); /** * 点击家庭列表 */ void onClickFamilyList(List<FamilyBean> familyBeanList); /** * 点击列表item * * @param clickFamilyBean 被点击选择的家庭 * @param isConfirm 是否已经加入此家庭 */ void onClickFamilyListItem(FamilyBean clickFamilyBean, boolean isConfirm); } /** * 对话框列表内部适配器类 */ private static class FamilyListDialogAdapter extends RecyclerView.Adapter<FamilyListDialogAdapter.ViewHolder> { private List<FamilyBean> mList = new ArrayList<>(); private OnItemClickListener mOnItemClickListener; private void refreshData(List<FamilyBean> list) { mList.clear(); mList.addAll(list); notifyDataSetChanged(); } private void clearData() { mList.clear(); notifyDataSetChanged(); } @NonNull @Override public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_family_list_dialog, parent, false); ViewHolder viewHolder = new ViewHolder(view); view.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (mOnItemClickListener != null) { int position = viewHolder.getAdapterPosition(); if (position == RecyclerView.NO_POSITION) { return; } boolean isConfirm = true; for (FamilyBean.MembersBean membersBean : mList.get(position).getMembers()) { if (membersBean.getUserId() == UserDataSP.getInstance().getUserId()) {//在成员列表里查找到当前用户id isConfirm = membersBean.isIsConfirm(); break; } } mOnItemClickListener.OnItemClick(mList.get(position), isConfirm); } } }); return viewHolder; } @Override public void onBindViewHolder(@NonNull ViewHolder holder, int position) { FamilyBean familyItem = mList.get(position); holder.familyName.setText(familyItem.getName()); for (FamilyBean.MembersBean membersBean : familyItem.getMembers()) { if (membersBean.getUserId() == UserDataSP.getInstance().getUserId()) {//在成员列表里查找到当前用户id if (!membersBean.isIsConfirm()) { holder.status.setText(R.string.waiting_to_join); return; } } } holder.status.setText(""); } @Override public int getItemCount() { return mList.size(); } public void setOnItemClickListener(OnItemClickListener listener) { mOnItemClickListener = listener; } private class ViewHolder extends RecyclerView.ViewHolder { View rootView; TextView familyName; TextView status; private ViewHolder(@NonNull View itemView) { super(itemView); rootView = itemView; familyName = (TextView) rootView.findViewById(R.id.family_name); status = (TextView) rootView.findViewById(R.id.status); } } public interface OnItemClickListener { /** * @param clickFamilyBean 被点击选择的家庭 * @param isConfirm 是否已经加入此家庭 */ void OnItemClick(FamilyBean clickFamilyBean, boolean isConfirm); } } }
End
本文来自博客园，作者：观心静 ，转载请注明原文链接：https://www.cnblogs.com/guanxinjing/p/12746009.html
本文版权归作者和博客园共有，欢迎转载，但必须给出原文链接，并保留此段声明，否则保留追究法律责任的权利。
