【Android開發日記】Popupwindow 完美demo

標籤：popupwindow

Popupwindow 完美demo實現
圖示：

                                                                                                     

關鍵代碼說明：

1.彈出popupwindow，背景變暗

ColorDrawable cd = new ColorDrawable(0x000000);popuWindow1.setBackgroundDrawable(cd); WindowManager.LayoutParams lp=getWindow().getAttributes();lp.alpha = 0.4f;getWindow().setAttributes(lp);

2.popupwindow消失之後，背景恢複

public void onDismiss(){    WindowManager.LayoutParams lp=getWindow().getAttributes();    lp.alpha = 1f;    getWindow().setAttributes(lp);}

3.popupwindow圓角矩形

   rounded_corners_bg.xml

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

   pupopwindow布局檔案中設定背景

 

<?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"    android:layout_gravity="center"    android:background="@drawable/rounded_corners_bg"    android:orientation="vertical" >     ...     ...     ... </RelativeLayout >

4.點擊popupwindow外部，popupwindow也會dismiss

popuWindow1.setOutsideTouchable(true);popuWindow1.setFocusable(true);

完整代碼：

1.MainActivity.java

package com.popupwindowdemo;import android.app.Activity;import android.content.Intent;import android.graphics.drawable.ColorDrawable;import android.net.Uri;import android.os.Bundle;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.WindowManager;import android.widget.Button;import android.widget.PopupWindow;import android.widget.TextView;import android.widget.PopupWindow.OnDismissListener;public class MainActivity extends Activity {//popupwindowprivate PopupWindow popuWindow1;  private View contentView1;private TextView textview1;private Button btn1;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);textview1 = (TextView)findViewById(R.id.textView2);btn1 = (Button)findViewById(R.id.button1);btn1.setOnClickListener(new View.OnClickListener() {        public void onClick(View v) {        initPopuWindow1(v);        }    });textview1.setOnClickListener(new View.OnClickListener() {public void onClick(View v) {final Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://blog.csdn.net/geeklei/article/"));startActivity(intent);}});}private void initPopuWindow1(View parent) {     if (popuWindow1 == null) {   LayoutInflater mLayoutInflater = LayoutInflater.from(this);contentView1 = mLayoutInflater.inflate(R.layout.popuwindow1, null);popuWindow1 = new PopupWindow(contentView1,ViewGroup.LayoutParams.WRAP_CONTENT,  ViewGroup.LayoutParams.WRAP_CONTENT);   }   ColorDrawable cd = new ColorDrawable(0x000000);   popuWindow1.setBackgroundDrawable(cd);    //產生背景變暗效果    WindowManager.LayoutParams lp=getWindow().getAttributes();lp.alpha = 0.4f;getWindow().setAttributes(lp);        popuWindow1.setOutsideTouchable(true);   popuWindow1.setFocusable(true);   popuWindow1.showAtLocation((View)parent.getParent(), Gravity.CENTER|Gravity.CENTER_HORIZONTAL, 0, 0);    popuWindow1.update();    popuWindow1.setOnDismissListener(new OnDismissListener(){        //在dismiss中恢複透明度    public void onDismiss(){    WindowManager.LayoutParams lp=getWindow().getAttributes();    lp.alpha = 1f;    getWindow().setAttributes(lp);    }     });}  }

2.activity_main.xml

<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"    tools:context="com.popupwindowdemo.MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    <TextView        android:id="@+id/textView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/textView1"        android:layout_below="@+id/textView1"        android:layout_marginTop="23dp"        android:text="click to visit my csdn blog"        android:textColor="#1C86EE" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/textView2"        android:layout_centerHorizontal="true"        android:layout_marginTop="103dp"        android:text="click to show popupwindow" /></RelativeLayout>

3.popupwindow1.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"    android:layout_gravity="center"    android:background="@drawable/rounded_corners_bg"       android:orientation="vertical" >    <LinearLayout    android:layout_width="220dp"    android:layout_height="wrap_content"    android:layout_centerInParent="true"    android:layout_gravity="center_vertical|center"    android:orientation="vertical" >        <TextView                android:id="@+id/group_menu1_passfile"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                android:text="item1"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />            <TextView                android:id="@+id/group_menu1_playgame"                android:layout_width="fill_parent"                android:layout_height="40dp"                 android:layout_marginLeft="20dp"                android:gravity="center_vertical"                android:text="item2"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />                        <TextView                android:id="@+id/group_menu1_removefriend"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                android:text="item3"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />            <TextView                android:id="@+id/group_menu1_setremark"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                        android:text="item4"                android:textColor="#000000"                android:textSize="13sp" />            <View                android:layout_width="match_parent"                android:layout_height="0.5dp"                android:background="#999999" />                 <TextView                android:id="@+id/group_menu1_brokemate"                android:layout_width="fill_parent"                android:layout_height="40dp"                android:layout_marginLeft="20dp"                android:gravity="center_vertical"                        android:text="item5"                android:textColor="#000000"                android:textSize="13sp" />                     </LinearLayout></RelativeLayout>

4.rounded_corners_bg.xml

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

demo：

http://download.csdn.net/detail/geeklei/7991521

【Android開發日記】Popupwindow 完美demo