Android开发 PopupWindow开发的一些例子

丁如意 發表於 2020-4-21 17:18:00

Android开发 PopupWindow开发的一些例子

<h1>版权声明</h1>
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
<div>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。</div>
<h1>前言</h1>
　　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
 
<h1>例子1</h1>
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
<h1>例子2</h1>
<h2>效果图</h2>
没有PopupWindow对话框时：
<img src="https://img2020.cnblogs.com/blog/1497956/202004/1497956-20200421170943871-370353431.png" alt="">
PopupWindow对话框出现时：
<img src="https://img2020.cnblogs.com/blog/1497956/202004/1497956-20200421171006586-2131111871.png" alt="">
<h2>dialog_family_list.xml</h2>
<div class="cnblogs_code">
<pre><?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></pre>
</div>
<h2>java</h2>
<div class="cnblogs_code">
<pre>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);
 }

}
}</pre>
</div>
 
 
 
End

</div>
<div id="MySignature" role="contentinfo">
<div style="text-align: center">
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 
<div style="color:orange;font-size:16px;">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。 </div>
</div> 
来源：https://www.cnblogs.com/guanxinjing/p/12746009.html

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Android开发 PopupWindow开发的一些例子