popupwindow在顶部或底部出现，背景变暗

出现的时候，背景变暗，然后选择布局以动画的形式出来。不是暗背景带着选择布局平推出来。
为了使用方便，顶部出现和底部出现，分开写了，需要那种，直接复制就能用。

 

1、主界面布局：

<?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:gravity="center_horizontal" 
    android:orientation="vertical" >

<TextView  android:id="@+id/top_view" 
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="30dp" 
    android:gravity="center" android:text="顶部出现" 
    android:textSize="25sp" />

<TextView  android:id="@+id/bottom_view"     
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_marginTop="30dp"
    android:gravity="center" android:text="底部出现"    
    android:textSize="25sp" />

</LinearLayout>

  

2、出现的选择界面的布局：select_layout.xml

 

 

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

    <LinearLayout  
        android:layout_marginTop="10dp" 
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:orientation="vertical">

        <RelativeLayout  
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="20dp">

            <ImageView  android:id="@+id/cancel"
                android:layout_width="25dp" 
                android:layout_height="25dp" 
                android:layout_alignParentRight="true" 
                android:layout_marginRight="15dp"
                android:background="@mipmap/ic_launcher" />
        </RelativeLayout>


        <LinearLayout  android:layout_width="match_parent"
            android:layout_height="wrap_content" 
            android:layout_marginLeft="20dp" 
            android:layout_marginRight="20dp" 
            android:layout_marginTop="20dp" 
            android:layout_marginBottom="10dp"
            android:orientation="horizontal" >


            <LinearLayout  android:id="@+id/ll_left"
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content"
                android:layout_weight="1" 
                android:gravity="center"
                android:orientation="vertical" >

                <ImageView  style="@style/QuickOpen"
                    android:background="@mipmap/ic_launcher" />

                <TextView  android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:text="操作1"
                    android:textSize="15sp" />


            </LinearLayout>

            <LinearLayout  android:id="@+id/ll_center"
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="center" 
                android:orientation="vertical" >

                <ImageView  style="@style/QuickOpen"
                    android:background="@mipmap/ic_launcher" />

                <TextView  android:layout_width="wrap_content" 
                    android:layout_height="wrap_content"
                    android:layout_marginTop="5dp"
                    android:text="操作2" 
                    android:textSize="15sp" />


            </LinearLayout>

            <LinearLayout  android:id="@+id/ll_right" 
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content"
                android:layout_weight="1" 
                android:gravity="center"
                android:orientation="vertical" >

                <ImageView  style="@style/QuickOpen"
                    android:background="@mipmap/ic_launcher" />

                <TextView  android:layout_width="wrap_content"
                    android:layout_height="wrap_content" 
                    android:layout_marginTop="5dp"
                    android:text="操作3" android:textSize="15sp" />

            </LinearLayout>

        </LinearLayout>

    </LinearLayout>

</LinearLayout>

 

 

 因为图片重复相同属性，抽出来

 

 

 

<style name="QuickOpen">
        <item name="android:layout_width">55dp</item>
        <item name="android:layout_height">55dp</item>
</style>

 

3、从顶部出现
3.1、新建TopView

 

package com.chen.popupwindowdemo;

import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.PopupWindow;

/** * 从顶部出来的PopupWindow */
public class TopView {

    Context context;
    private PopupWindow popupWindow;
    View popupWindowView;


    public TopView(Context context){
        this.context=context;

        initPopupWindow();
    }

    /** * 初始化 */
    public void initPopupWindow() {

        popupWindowView = LayoutInflater.from(context).inflate(R.layout.select_layout, null);
        popupWindow = new PopupWindow(popupWindowView, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, true);


        popupWindow.setAnimationStyle(R.style.TopSelectAnimationShow);
        // 菜单背景色。加了一点透明度
        ColorDrawable dw = new ColorDrawable(0xddffffff);
        popupWindow.setBackgroundDrawable(dw);

        //TODO 注意：这里的 R.layout.activity_main，不是固定的。你想让这个popupwindow盖在哪个界面上面。就写哪个界面的布局。这里以主界面为例
        popupWindow.showAtLocation(LayoutInflater.from(context).inflate(R.layout.activity_main, null),
                Gravity.TOP | Gravity.CENTER_HORIZONTAL, 0, 0);

        // 设置背景半透明
        backgroundAlpha(0.7f);

        popupWindow.setOnDismissListener(new popupDismissListener());

        popupWindowView.setOnTouchListener(new View.OnTouchListener() {

            @Override
            public boolean onTouch(View v, MotionEvent event) {
                /* * if( popupWindow!=null && popupWindow.isShowing()){ * popupWindow.dismiss(); popupWindow=null; } */
                // 这里如果返回true的话，touch事件将被拦截
                // 拦截后 PopupWindow的onTouchEvent不被调用，这样点击外部区域无法dismiss
                return false;
            }
        });
        dealWithSelect();
    }


    /** * 处理点击事件 */
    private void dealWithSelect(){
        //点击了关闭图标（右上角图标）
        popupWindowView.findViewById(R.id.cancel).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dimss();
            }
        });

        popupWindowView.findViewById(R.id.ll_left).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ToastUtil.showToast(context, "点击了操作1");
            }
        });

        popupWindowView.findViewById(R.id.ll_center).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ToastUtil.showToast(context,"点击了操作2");
            }
        });

        popupWindowView.findViewById(R.id.ll_right).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ToastUtil.showToast(context,"点击了操作3");
            }
        });
    }


    /** * 设置添加屏幕的背景透明度 * * @param bgAlpha */
    public void backgroundAlpha(float bgAlpha) {
        WindowManager.LayoutParams lp = ((Activity) context).getWindow().getAttributes();
        lp.alpha = bgAlpha; // 0.0-1.0
        ((Activity) context).getWindow().setAttributes(lp);
    }

    class popupDismissListener implements PopupWindow.OnDismissListener {

        @Override
        public void onDismiss() {
            backgroundAlpha(1f);
        }
    }

    public void dimss() {
        if (popupWindow != null) {
            popupWindow.dismiss();
        }
    }

}

 

3.2、设置styles：在values–>styles文件中，加上

<style name="TopSelectAnimationShow">
        <item name="android:windowEnterAnimation">@anim/top_enter</item>
        <item name="android:windowExitAnimation">@anim/top_exit</item>
</style>

 

3.3、在anim文件中加上

 top_enter.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate android:fromYDelta="-100%" android:toYDelta="0" android:duration="300"/>

</set>

 

top_exit.xml

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate  android:duration="300" android:fromYDelta="0" android:toYDelta="-100%" />

</set>

 

3.4、主布局使用


//点击“顶部出现”按钮
findViewById(R.id.top_view).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                topView = new TopView(MainActivity.this);
            }
});