【Android开发日记】Popupwindow 完美demo

2022-08-27 13:58:18

Popupwindow 完美demo实现

图示：

关键代码说明：

1.弹出popupwindow，背景变暗

ColorDrawable cd = new ColorDrawable(0x000000);

popuWindow1.setBackgroundDrawable(cd);

WindowManager.LayoutParams lp=getWindow().getAttributes();

lp.alpha = 0.4f;

getWindow().setAttributes(lp);

2.popupwindow消失之后，背景恢复

public void onDismiss(){

    WindowManager.LayoutParams lp=getWindow().getAttributes();

    lp.alpha = 1f;

    getWindow().setAttributes(lp);

}

3.popupwindow圆角矩形

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布局文件中设置背景

<?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.点击popupwindow外部，popupwindow也会dismiss

popuWindow1.setOutsideTouchable(true);

popuWindow1.setFocusable(true);

完整代码：

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 {

  //popupwindow

  private PopupWindow popuWindow1;

  private View contentView1;

  private TextView textview1;

  private Button btn1;

  @Override

  protected 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);

     	//产生背景变暗效果

    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中恢复透明度

    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下载地址：

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

码农公寓

Popupwindow 完美demo实现

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