Android PopupWindow增加半透明蒙层

本文实例为大家分享了android popupwindow增加半透明蒙层的具体代码，供大家参考，具体内容如下

先看效果图：

实现代码：

basepopupwindowwithmask.class

package com.example.popupwindowwithmask;
 
import android.content.context;
import android.graphics.pixelformat;
import android.graphics.drawable.colordrawable;
import android.os.ibinder;
import android.view.keyevent;
import android.view.view;
import android.view.windowmanager;
import android.widget.popupwindow;
 
/**
 * created by kk on 2017/7/22.
 */
 
public abstract class basepopupwindowwithmask extends popupwindow {
 protected context context;
 private windowmanager windowmanager;
 private view maskview;
 
 public basepopupwindowwithmask(context context) {
  super(context);
  this.context = context;
  windowmanager = (windowmanager) context.getsystemservice(context.window_service);
  setcontentview(initcontentview());
  setheight(initheight());
  setwidth(initwidth());
  setoutsidetouchable(true);
  setfocusable(true);
  settouchable(true);
  setbackgrounddrawable(new colordrawable());
 }
 
 protected abstract view initcontentview();
 
 protected abstract int initheight();
 
 protected abstract int initwidth();
 
 @override
 public void showasdropdown(view anchor) {
  addmask(anchor.getwindowtoken());
  super.showasdropdown(anchor);
 }
 
 private void addmask(ibinder token) {
  windowmanager.layoutparams wl = new windowmanager.layoutparams();
  wl.width = windowmanager.layoutparams.match_parent;
  wl.height = windowmanager.layoutparams.match_parent;
  wl.format = pixelformat.translucent;//不设置这个弹出框的透明遮罩显示为黑色
  wl.type = windowmanager.layoutparams.type_application_panel;//该type描述的是形成的窗口的层级关系
  wl.token = token;//获取当前activity中的view中的token,来依附activity
  maskview = new view(context);
  maskview.setbackgroundcolor(0x7f000000);
  maskview.setfitssystemwindows(false);
  maskview.setonkeylistener(new view.onkeylistener() {
   @override
   public boolean onkey(view v, int keycode, keyevent event) {
    if (keycode == keyevent.keycode_back) {
     removemask();
     return true;
    }
    return false;
   }
  });
  /**
   * 通过windowmanager的addview方法创建view，产生出来的view根据windowmanager.layoutparams属性不同，效果也就不同了。
   * 比如创建系统*窗口，实现悬浮窗口效果！
   */
  windowmanager.addview(maskview, wl);
 }
 
 private void removemask() {
  if (null != maskview) {
   windowmanager.removeviewimmediate(maskview);
   maskview = null;
  }
 }
 
 @override
 public void dismiss() {
  removemask();
  super.dismiss();
 }
}

testpopupwindow.class

package com.example.popupwindowwithmask;
 
import android.content.context;
import android.view.layoutinflater;
import android.view.view;
import android.view.windowmanager;
 
/**
 * created by kk on 2017/7/22.
 */
 
public class testpopupwindow extends basepopupwindowwithmask {
 private int[] mids;
 private view contentview;
 private onitemclicklistener listener;
 
 public interface onitemclicklistener {
  void onitemclick(view v);
 }
 
 public void setonitemclicklistener(onitemclicklistener listener) {
  this.listener = listener;
 }
 
 public testpopupwindow(context context, int[] mids) {
  super(context);
  this.mids = mids;
 
  initlistener();
 }
 
 @override
 protected view initcontentview() {
  contentview = layoutinflater.from(context).inflate(r.layout.pop_layout, null, false);
  return contentview;
 }
 
 private void initlistener() {
  for (int i = 0; i < mids.length; i++) {
   contentview.findviewbyid(mids[i]).setonclicklistener(new view.onclicklistener() {
    @override
    public void onclick(view v) {
     if (null != listener) {
      listener.onitemclick(v);
     }
     dismiss();
    }
   });
  }
 }
 @override
 protected int initheight() {
  return windowmanager.layoutparams.wrap_content;
 }
 @override
 protected int initwidth() {
  return (int) (0.5 * uiutils.getscreenwidth(context));
 }
}

mainactivity.class

package com.example.popupwindowwithmask;
 
import android.os.bundle;
import android.support.v7.app.appcompatactivity;
import android.view.view;
import android.widget.textview;
import android.widget.toast;
 
public class mainactivity extends appcompatactivity {
 private textview textview;
 
 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_main);
  textview = (textview) findviewbyid(r.id.tv_popup);
 
 
  final testpopupwindow testpopupwindow = new testpopupwindow(this, new int[]{r.id.pop_location, r.id.pop_group, r.id.pop_list});
 
  textview.setonclicklistener(new view.onclicklistener() {
   @override
   public void onclick(view v) {
    testpopupwindow.showasdropdown(textview);
   }
  });
 
  testpopupwindow.setonitemclicklistener(new testpopupwindow.onitemclicklistener() {
   @override
   public void onitemclick(view v) {
    switch (v.getid()) {
     case r.id.pop_location:
      toast.maketext(mainactivity.this, "地址", toast.length_short).show();
      break;
     case r.id.pop_group:
      toast.maketext(mainactivity.this, "分组", toast.length_short).show();
      break;
     case r.id.pop_list:
      toast.maketext(mainactivity.this, "清单", toast.length_short).show();
      break;
    }
   }
  });
 }
}

pop_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<relativelayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content">
 
 <relativelayout
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">
 
  <relativelayout
   android:id="@+id/rl_indicator"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:gravity="center_horizontal">
 
   <imageview
    android:layout_width="wrap_content"
    android:layout_height="12dp"
    android:scaletype="fitcenter"
    android:src="@drawable/filter_arrow_up" />
  </relativelayout>
 
  <linearlayout
   android:layout_width="wrap_content"
   android:layout_height="150dp"
   android:layout_below="@+id/rl_indicator"
   android:background="@drawable/pop_background"
   android:gravity="center_horizontal"
   android:orientation="vertical"
   android:paddingleft="15dp"
   android:paddingright="15dp">
 
   <textview
    android:id="@+id/pop_location"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:drawableleft="@mipmap/fault_equipment_location_icon"
    android:drawablepadding="12dp"
    android:gravity="center_vertical"
    android:text="地址"
    android:textcolor="#000"
    android:textsize="16sp" />
 
   <view
    android:layout_width="match_parent"
    android:layout_height="0.3dp"
    android:background="#d2d2d2" />
 
   <textview
    android:id="@+id/pop_group"
    android:layout_width="match_parent"
    android:layout_height="0dp"
 
    android:layout_weight="1"
    android:drawableleft="@mipmap/fault_equipment_grouping_icon"
    android:drawablepadding="12dp"
    android:gravity="center_vertical"
    android:text="分组"
    android:textcolor="#000"
    android:textsize="16sp" />
 
   <view
    android:layout_width="match_parent"
    android:layout_height="0.3dp"
    android:background="#d2d2d2" />
 
   <textview
    android:id="@+id/pop_list"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1"
    android:drawableleft="@mipmap/fault_equipment_list_icon"
    android:drawablepadding="12dp"
    android:gravity="center_vertical"
    android:text="清单"
    android:textcolor="#000"
    android:textsize="16sp" />
 
  </linearlayout>
 </relativelayout>
</relativelayout>

pop_background.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
 <solid android:color="#ffffff" />
 <corners
  android:radius="5dp" />
</shape>

uiutils.class

package com.example.popupwindowwithmask;
 
import android.content.context;
 
/**
 * created by kk on 2017/7/22.
 */
 
public class uiutils {
 /**
  * 获得屏幕宽度
  *
  * @param context
  * @return
  */
 public static int getscreenwidth(context context) {
  return context.getresources().getdisplaymetrics().widthpixels;
 }
 
 /**
  * 获得屏幕高度
  *
  * @param context
  * @return
  */
 public static int getscreenheight(context context) {
  return context.getresources().getdisplaymetrics().heightpixels;
 }
 
}

源码：下载地址

参考资料：

链接1

链接2

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