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PopupWindow仿微信浮層彈出框效果

更新時間：2018年04月25日 11:31:40 作者：隨風(fēng)漂泊_

這篇文章主要為大家詳細介紹了PopupWindow仿微信浮層彈出框效果，具有一定的參考價值，感興趣的小伙伴們可以參考一下

最近公司項目需要實現(xiàn)類似微信的浮層彈出框。研究發(fā)現(xiàn)是用PopupWindow實現(xiàn)的。而且可以自定義位置以及出現(xiàn)和退出時的動畫，由于太晚了就不實現(xiàn)動畫了，需要得同學(xué)請自己研究下。由于本人新手其中的不足和缺點請見諒。

代碼如下：

首先是定義頂部按鈕的main.xml文件

<LinearLayout 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:id="@+id/main" 
 android:orientation="vertical" 
 tools:context=".MainActivity" 
 android:background="@color/white" > 
 
 <RelativeLayout 
 android:id="@+id/rl_action_bar" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 android:layout_gravity="center" 
 android:padding="10dip" 
 android:background="@color/gold" > 
 
 <Button 
  android:id="@+id/more" 
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content" 
  android:layout_alignParentRight="true" 
  android:layout_marginRight="10dip" 
  android:background="@drawable/more" /> 
 <Button 
  android:id="@+id/add" 
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content" 
  android:layout_marginRight="20dip" 
  android:layout_toLeftOf="@+id/more" 
  android:background="@drawable/add" 
  /> 
 <Button 
  android:id="@+id/search" 
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content" 
  android:layout_marginRight="20dip" 
  android:layout_toLeftOf="@+id/add" 
  android:background="@drawable/search" 
  /> 
 </RelativeLayout> 
 
</LinearLayout>

其次是定義彈出框PopupWindow的popupwindow_dialog.xml

<?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:background="@drawable/click" 
 android:cacheColorHint="#00000000" 
 android:orientation="vertical" > 
 <ListView 
 android:id="@+id/lv_dialog" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:cacheColorHint="#00000000" 
 android:listSelector="@drawable/grouplist_item_bg_normal" > 
 </ListView> 
 
</LinearLayout>

接著是每一個彈出框顯示的文字text.xml

<?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" > 
 
 <TextView 
 android:id="@+id/tv_text" 
 android:layout_width="match_parent" 
 android:layout_height="wrap_content" 
 android:layout_marginLeft="10dip" 
 android:padding="5dp" 
 android:textSize="20sp" /> 
 
</LinearLayout>

最后是主界面的MainActivity.java

package com.bn.weixindemo; 
 
import android.app.Activity; 
import android.graphics.drawable.BitmapDrawable; 
import android.os.Bundle; 
import android.view.Gravity; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.AdapterView; 
import android.widget.ArrayAdapter; 
import android.widget.Button; 
import android.widget.LinearLayout; 
import android.widget.ListView; 
import android.widget.PopupWindow; 
import android.widget.Toast; 
import android.widget.AdapterView.OnItemClickListener; 
 
/** 
 * 
 *@title 標題 
 *@description 仿微信頂部彈出框的popuwindow 
 *@author zhengxiaolin 
 *@version 1.0 
 *@created 2014-5-23 上午12:11:11 
 *@changeRecord [修改記錄]<br /> 
 */ 
public class MainActivity extends Activity implements OnClickListener{ 
 private Button mBtnMore,mBtnAdd,mBtnSearch; 
 private PopupWindow popupWindow; 
 private LinearLayout layout; 
 private ListView listView; 
 private String[] more = {"我的相冊","我的收藏","我的銀行卡","設(shè)置","意見反饋"}; 
 private String[] add ={"發(fā)起群聊","添加朋友","視屏聊天","掃一掃","拍照分享"}; 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.main); 
 mBtnMore = (Button) findViewById(R.id.more); 
 mBtnAdd = (Button) findViewById(R.id.add); 
 mBtnSearch = (Button) findViewById(R.id.search); 
 setOnClickListener(); 
 } 
 
 private void setOnClickListener() { 
 mBtnMore.setOnClickListener(this); 
 mBtnAdd.setOnClickListener(this); 
 mBtnSearch.setOnClickListener(this); 
 } 
 
 @Override 
 public void onClick(View v) { 
 // TODO Auto-generated method stub 
 switch (v.getId()) { 
 case R.id.more: 
  mBtnMore.getTop(); 
  int y = mBtnMore.getBottom() * 3 / 2; 
  int x = getWindowManager().getDefaultDisplay().getWidth(); 
  showMorePopupWindow(x, y); 
  break; 
 case R.id.add: 
  mBtnAdd.getTop(); 
  int y1 = mBtnAdd.getBottom() * 3 / 2; 
  int x1 = getWindowManager().getDefaultDisplay().getWidth(); 
  showAddPopupWindow(x1, y1); 
  break; 
 case R.id.search: 
  Toast.makeText(getBaseContext(), "搜索", 1).show(); 
 default: 
  break; 
 } 
 } 
 
 public void showMorePopupWindow(int x, int y) { 
 layout = (LinearLayout) LayoutInflater.from(MainActivity.this).inflate( 
  R.layout.popupwindow_dialog, null); 
 listView = (ListView) layout.findViewById(R.id.lv_dialog); 
 listView.setAdapter(new ArrayAdapter<String>(MainActivity.this, 
  R.layout.text, R.id.tv_text, more)); 
 
 popupWindow = new PopupWindow(MainActivity.this); 
 popupWindow.setBackgroundDrawable(new BitmapDrawable()); 
 popupWindow 
  .setWidth(getWindowManager().getDefaultDisplay().getWidth() / 2); 
 popupWindow.setHeight(420); 
 popupWindow.setOutsideTouchable(true); 
 popupWindow.setFocusable(true); 
 popupWindow.setContentView(layout); 
 popupWindow.showAtLocation(findViewById(R.id.main), Gravity.LEFT 
  | Gravity.TOP, x, y);//需要指定Gravity，默認情況是center. 
 listView.setOnItemClickListener(new OnItemClickListener() { 
  @Override 
  public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, 
   long arg3) { 
  Toast.makeText(getBaseContext(), "您選擇了："+more[arg2], 1).show(); 
  popupWindow.dismiss(); 
  popupWindow = null; 
  } 
 }); 
 } 
 /** 
 * 點擊+時彈出的popuwindow 
 */ 
 public void showAddPopupWindow(int x, int y) { 
 layout = (LinearLayout) LayoutInflater.from(MainActivity.this).inflate( 
  R.layout.popupwindow_dialog, null); 
 listView = (ListView) layout.findViewById(R.id.lv_dialog); 
 listView.setAdapter(new ArrayAdapter<String>(MainActivity.this, 
  R.layout.text, R.id.tv_text, add)); 
 
 popupWindow = new PopupWindow(MainActivity.this); 
 popupWindow.setBackgroundDrawable(new BitmapDrawable()); 
 popupWindow 
  .setWidth(getWindowManager().getDefaultDisplay().getWidth() / 2); 
 popupWindow.setHeight(420); 
 popupWindow.setOutsideTouchable(true); 
 popupWindow.setFocusable(true); 
 popupWindow.setContentView(layout); 
 popupWindow.showAtLocation(findViewById(R.id.main), Gravity.LEFT 
  | Gravity.TOP, x, y);//需要指定Gravity，默認情況是center. 
 listView.setOnItemClickListener(new OnItemClickListener() { 
  @Override 
  public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, 
   long arg3) { 
  Toast.makeText(getBaseContext(), "您選擇了："+add[arg2], 1).show(); 
  popupWindow.dismiss(); 
  popupWindow = null; 
  } 
 }); 
 } 
}

好了，主要代碼就完成了，實現(xiàn)效果如下所示