Android popupwindow的简单使用

来源：互联网发布：香草的天空知乎编辑：程序博客网时间：2024/06/08 15:39

先看下效果
这里写图片描述

1.首页

package com.yskj.jh.demopopupwindow;import android.content.Context;import android.graphics.drawable.BitmapDrawable;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.PopupWindow;import android.widget.TextView;import android.widget.Toast;import java.util.ArrayList;public class MainActivity extends AppCompatActivity {    private Button button;    private PopupWindow kindsPopupWindow;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        button = (Button) findViewById(R.id.button);        button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                getKindPopupWindow();            }        });    }    private void getKindPopupWindow() {        final ArrayList kindsList = new ArrayList();        kindsList.add("全部分类");        kindsList.add("今日上线");        kindsList.add("美食");        kindsList.add("酒店");        kindsList.add("旅游");        LayoutInflater inflater = LayoutInflater.from(this);        // 引入窗口配置文件        View view = inflater.inflate(R.layout.pop_local_kind, null);        // 创建PopupWindow对象        kindsPopupWindow = new PopupWindow(view, LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, false);        //设置popupWindow宽        kindsPopupWindow.setWidth(button.getWidth());        ListView listView = (ListView) view.findViewById(R.id.list);        PopAdapter adapter = new PopAdapter(MainActivity.this,kindsList);        listView.setAdapter(adapter);        // 需要设置一下此参数，点击外边可消失        kindsPopupWindow.setBackgroundDrawable(new BitmapDrawable());        //设置点击窗口外边窗口消失        kindsPopupWindow.setOutsideTouchable(true);        // 设置此参数获得焦点，否则无法点击        kindsPopupWindow.setFocusable(true);        //设置popupWindow显示位置        kindsPopupWindow.showAsDropDown(button);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {                Toast.makeText(MainActivity.this,i+"pop",Toast.LENGTH_SHORT).show();                button.setText(kindsList.get(i).toString());                kindsPopupWindow.dismiss();            }        });    }    //pop适配器    private class PopAdapter extends BaseAdapter {        private Context context;        private ArrayList<String> list;        public PopAdapter(Context context, ArrayList<String> list) {            this.context = context;            this.list = list;        }        @Override        public int getCount() {            if (list==null||list.size()==0){                return 0;            }            return list.size();        }        @Override        public Object getItem(int i) {            return list.get(i);        }        @Override        public long getItemId(int i) {            return i;        }        @Override        public View getView(int i, View convertView, ViewGroup viewGroup) {            ViewHolder holder = null;            if(convertView==null){                holder = new ViewHolder();                convertView = LayoutInflater.from(context).inflate(R.layout.item_pop_local_kind, null);                holder.textView = (TextView) convertView.findViewById(R.id.item_text);                convertView.setTag(holder);            }else{                holder=(ViewHolder)convertView.getTag();            }            holder.textView.setText(list.get(i).toString());            return convertView;        }        private class ViewHolder {            TextView textView;        }    }}

2.首页布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    >    <Button        android:id="@+id/button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Show PopupWindow" /></LinearLayout>

3.popupwindow布局，可根据情况自行布局，这里是demo布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    android:background="#ffffff">    <ListView        android:id="@+id/list"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="#888888">    </ListView></LinearLayout>

4.popupwindow条目布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    android:background="@color/white">    <TextView        android:id="@+id/item_text"        android:layout_width="match_parent"        android:layout_height="40dp"        android:gravity="center"        android:text="pop"        android:textColor="#f08e1f"        android:background="#eeeeee"        /></LinearLayout>

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