Android PopWindow与GridView练习

来源：互联网发布：中国公安大学网络教育编辑：程序博客网时间：2024/04/28 12:29

练习：1.首先完成如图所示效果

2.使用PopWindow与GridView完成

要求点击分享显示如图所示内容，点击取消分享退出。

并且要求进入退出动画效果为渐入渐出，时间为1秒，且要设置透明效果。

布局：

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    android:background="#8ee1b4"    tools:context="com.example.administrator.jreduch05.GridView_Activity">    <GridView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:id="@+id/gv"        android:numColumns="4"        >    </GridView>    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="取消分享"        android:id="@+id/bt1"        android:layout_below="@+id/gv"        /></RelativeLayout>

布局效果：

布局：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical" android:layout_width="match_parent"android:layout_height="match_parent"><ImageView    android:layout_width="100dp"    android:layout_height="100dp"    android:id="@+id/iv"    android:src="@mipmap/ic_launcher"    android:scaleType="centerCrop"    /><TextView    android:layout_width="100dp"    android:layout_height="wrap_content"    android:id="@+id/tv"    android:gravity="center"    android:text="测试"    /></LinearLayout>

效果：

代码：

package com.example.administrator.jreduch05;import android.graphics.drawable.ColorDrawable;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.Gravity;import android.view.View;import android.view.WindowManager;import android.widget.Button;import android.widget.GridView;import android.widget.LinearLayout;import android.widget.PopupWindow;import android.widget.SimpleAdapter;import java.util.ArrayList;import java.util.HashMap;import java.util.List;public class PopWindow_Activity extends AppCompatActivity {    private Button bt;    private PopupWindow pw;    private View popView;    private GridView gv;    private Button bt1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_pop_window_);        bt=(Button) findViewById(R.id.share);        popView=getLayoutInflater().inflate(R.layout.activity_grid_view_,null);        bt1=(Button) popView.findViewById(R.id.bt1);        gv=(GridView)popView.findViewById(R.id.gv);        List list =new ArrayList();        HashMap map=new HashMap();        map.put("img",R.mipmap.renrou);        map.put("name","微信");        list.add(map);        map=new HashMap();        map.put("img",R.mipmap.jietu1);        map.put("name", "QQ");        list.add(map);        map=new HashMap();        map.put("img",R.mipmap.dahai);        map.put("name", "大海");        list.add(map);        map=new HashMap();        map.put("img",R.mipmap.dianzan);        map.put("name", "点赞");        list.add(map);        SimpleAdapter sa=new SimpleAdapter(this,list,R.layout.gridlayout,                new String[]{"img","name"},                new int[]{R.id.iv,R.id.tv}                );        gv.setAdapter(sa);        bt.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                pw = getPopWindow(popView);            }        });        bt1.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                 pw.dismiss();                    bt1.setVisibility(View.VISIBLE);                //设置View可见            }        });    }    public PopupWindow getPopWindow(View view){        PopupWindow popupWindow=new PopupWindow(view,                LinearLayout.LayoutParams.MATCH_PARENT,                LinearLayout.LayoutParams.WRAP_CONTENT,true        );        popupWindow.setOutsideTouchable(true);        popupWindow.setAnimationStyle(R.style.popStyle);        //设置背景透明度        WindowManager.LayoutParams ll=                getWindow().getAttributes();        ll.alpha=0.6f;        getWindow().setAttributes(ll);        popupWindow.setBackgroundDrawable(new ColorDrawable());        popupWindow.showAtLocation(bt, Gravity.BOTTOM, 0, 0);        popupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {            @Override            public void onDismiss() {                WindowManager.LayoutParams ll=                        getWindow().getAttributes();                ll.alpha=1f;                getWindow().setAttributes(ll);                //设置View可见            }        });        return popupWindow;    }}

完成效果：

1. 2.

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