Android笔记之自定义PopupWindow

效果图

popup_window_addition.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@mipmap/addition_popup_window_background"
    android:orientation="vertical"
    android:paddingLeft="20dp"
    android:paddingTop="15dp"
    android:paddingRight="15dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:layout_marginBottom="15dp"
        android:drawableLeft="@mipmap/ic_chat"
        android:drawablePadding="15dp"
        android:gravity="center"
        android:text="发起群聊"
        android:textColor="@android:color/white" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        android:layout_marginBottom="15dp"
        android:drawableLeft="@mipmap/ic_add_friend"
        android:drawablePadding="15dp"
        android:gravity="center"
        android:text="添加朋友"
        android:textColor="@android:color/white" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        android:layout_marginBottom="15dp"
        android:drawableLeft="@mipmap/ic_scan"
        android:drawablePadding="15dp"
        android:gravity="center"
        android:text="扫一扫"
        android:textColor="@android:color/white" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        android:layout_marginBottom="15dp"
        android:drawableLeft="@mipmap/ic_receive_pay"
        android:drawablePadding="15dp"
        android:gravity="center"
        android:text="收付款"
        android:textColor="@android:color/white" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="15dp"
        android:layout_marginBottom="15dp"
        android:drawableLeft="@mipmap/ic_feedback"
        android:drawablePadding="15dp"
        android:gravity="center"
        android:text="帮助与反馈"
        android:textColor="@android:color/white" />
</LinearLayout>

AdditionPopupWindow.java

package com.bu_ish.popup_window_example;

import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.PopupWindow;

public class AdditionPopupWindow extends PopupWindow {
    public AdditionPopupWindow(Context context) {
        setWidth(LinearLayout.LayoutParams.WRAP_CONTENT);
        setHeight(LinearLayout.LayoutParams.WRAP_CONTENT);
        setBackgroundDrawable(new ColorDrawable());
        setOutsideTouchable(true);
        View view = LayoutInflater.from(context).inflate(R.layout.popup_window_addition, null);
        setContentView(view);
    }
}

MainActivity.java

package com.bu_ish.popup_window_example;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById(R.id.addImageView).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                AdditionPopupWindow popupWindow = new AdditionPopupWindow(MainActivity.this);
                popupWindow.showAsDropDown(v);
            }
        });
    }
}

注意

要想点击外部关闭PopupWindow，必须调用setBackgroundDrawable(Drawable)和setOutsideTouchable(boolean)

完整Demo链接：https://pan.baidu.com/s/1NF5-SUaOyHOWRWCFKfTWCA，提取码：c59o