探索Popupwindow-对话框风格的窗体(

时间:2021-03-07 18:57:25

Android中还是会经经常使用到Popupwindow。一种类似于对话框风格的窗体,当然类似于对话框风格也能够用Activity,能够參考:Android中使用Dialog风格弹出框的Activity

一般使用Popupwindow创建对话框风格的窗体仅仅须要两部:

(1)调用Popupwindow的构造函数创建Popupwindow对象,比如

PopupWindow popupWindow = new PopupWindow(root, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);

(2)调用Popupwindow的showAsDropDown(View v)将Popupwindow作为v组件的下拉组件显示出来;或者调用Popupwindow的showAtLocation()方法将Popupwindow在指定位置显示。两者能够一起设置



以下就要開始动手啦

首先在activity_main.xml布局文件里加入设置button,用于当点击这个button时弹出Popupwindow-对话框风格的窗体

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="@dimen/activity_tabhost_height"
android:background="@color/blue"> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="探索Popupwindow"
android:textColor="@color/white"
android:textSize="@dimen/acitvity_title_size" /> <TextView
android:id="@+id/tv_set"
android:layout_width="75dp"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:gravity="center"
android:text="设置"
android:textColor="@color/white"
android:textSize="@dimen/acitvity_title_size" />
</RelativeLayout>
</LinearLayout>

然后再创建一个叫activity_set.xml的布局文件。用于点击设置button时载入将显示对话框风格的窗体的XML布局文件

<?

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="wrap_content"
android:background="@color/white"
android:orientation="vertical"> <LinearLayout
android:layout_width="match_parent"
android:layout_height="65dp"
android:orientation="horizontal"
android:paddingLeft="@dimen/acitvity_margin"
android:paddingRight="@dimen/acitvity_margin"> <LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal"> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center"
android:text="上班时间:"
android:textColor="@color/grey"
android:textSize="@dimen/size_text_medium" /> <Button
android:id="@+id/tv_signin_time"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/white"
android:gravity="center"
android:text="9:00"
android:textColor="@color/grey"
android:textSize="@dimen/size_text_medium" />
</LinearLayout> <LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal"> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center"
android:text="下班时间:"
android:textColor="@color/grey"
android:textSize="@dimen/size_text_medium" /> <Button
android:id="@+id/tv_signout_time"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="@color/white"
android:gravity="center"
android:text="18:00"
android:textColor="@color/grey"
android:textSize="@dimen/size_text_medium" />
</LinearLayout>
</LinearLayout> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="65dp"
android:paddingLeft="@dimen/acitvity_margin"
android:paddingRight="@dimen/acitvity_margin"> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:gravity="center"
android:text="公司位置:"
android:textColor="@color/grey"
android:textSize="@dimen/size_text_medium" /> <TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:gravity="center"
android:padding="5dp"
android:text="又一次定位"
android:textColor="@color/blue"
android:textSize="@dimen/size_text_medium" />
</RelativeLayout> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="65dp"
android:paddingLeft="@dimen/acitvity_margin"
android:paddingRight="@dimen/acitvity_margin"> <TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:gravity="center"
android:text="设置管理员:"
android:textColor="@color/grey"
android:textSize="@dimen/size_text_medium" /> <ImageView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:gravity="center"
android:src="@mipmap/icon_toright" />
</RelativeLayout> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="65dp"
android:paddingLeft="@dimen/acitvity_margin"
android:paddingRight="@dimen/acitvity_margin"> <Button
android:id="@+id/btn_exit"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_alignParentRight="true"
android:background="@color/white"
android:gravity="center"
android:text="关闭popupWindow"
android:textColor="@drawable/selector_text"
android:textSize="@dimen/size_text_medium" />
</RelativeLayout>
</LinearLayout>

接下来就是MainActivity.class程序開始的主布局文件啦

package com.xiaolijuan.popupwindowdome;

import android.app.Activity;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.PopupWindow;
import android.widget.TextView; public class MainActivity extends Activity implements View.OnClickListener {
private TextView mTvSet; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTvSet = (TextView) findViewById(R.id.tv_set); mTvSet.setOnClickListener(this);
} @Override
public void onClick(View v) {
//载入点击设置button时将显示对话框风格的窗体的XML布局文件
View root = this.getLayoutInflater().inflate(
R.layout.activity_set, null);
//创建popupWindow对象(对话框窗体)
final PopupWindow popupWindow = new PopupWindow(root, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
//下面拉的方式显示
popupWindow.showAsDropDown(v);
//将popupWindow显示在制定位置,在这里作为mTvSet组件的下拉组件显示出来
popupWindow.showAtLocation(findViewById(R.id.tv_set),
Gravity.CENTER, 0, 0);
root.findViewById(R.id.btn_exit).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
popupWindow.dismiss();
}
});
}
}

当中点击btn_exitbutton时候,使用popupWindow.dismiss()方法将Popupwindow窗体关闭

效果例如以下图:

探索Popupwindow-对话框风格的窗体(

那么如今问题来了。我仅仅能通过点击关闭button,我才干够关闭这个窗体么?假设我想点击窗体以外的地方就可以关闭窗体呢。那么也设置这样两句代码,例如以下图:

//触摸popupwindow外部,使popupWindow能够消失就必需要设置背景
popupWindow.setBackgroundDrawable(new BitmapDrawable());
//不设置默认的就是False
popupWindow.setOutsideTouchable(true);

这两句代码必须设置在Popupwindow的showAsDropDown(View v)方法或者Popupwindow的showAtLocation()方法之前

完整版:

package com.xiaolijuan.popupwindowdome;

import android.app.Activity;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.PopupWindow;
import android.widget.TextView; public class MainActivity extends Activity implements View.OnClickListener {
private TextView mTvSet; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTvSet = (TextView) findViewById(R.id.tv_set); mTvSet.setOnClickListener(this);
} @Override
public void onClick(View v) {
//载入点击设置button时将显示对话框风格的窗体的XML布局文件
View root = this.getLayoutInflater().inflate(
R.layout.activity_set, null);
//创建popupWindow对象(对话框窗体)
final PopupWindow popupWindow = new PopupWindow(root, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
//触摸popupwindow外部,使popupWindow能够消失就必需要设置背景
popupWindow.setBackgroundDrawable(new BitmapDrawable());
//不设置默认的就是False
popupWindow.setOutsideTouchable(true);
//下面拉的方式显示
popupWindow.showAsDropDown(v);
//将popupWindow显示在制定位置。在这里作为mTvSet组件的下拉组件显示出来
popupWindow.showAtLocation(findViewById(R.id.tv_set),
Gravity.CENTER, 0, 0);
root.findViewById(R.id.btn_exit).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
popupWindow.dismiss();
}
});
}
}

当然这一功能还能够使用Activity 的OnTouchEvent事件做到,OnTouchEvent指的是Activity
获得事件(即在PopupWindow窗体之外)

Dome下载http://download.csdn.net/detail/qq_20785431/9335251