• 探索Popupwindow-对话框风格的窗体(


    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:


    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

  • 相关阅读:
    R语言代写模型中的加总偏误与内生性:一种数值模拟方法
    R语言代写NYPD纽约市警察局抢劫者数据分析
    R语言代写使用马尔可夫链Markov Chain, MC来模拟抵押违约
    BZOJ 2600: [Ioi2011]ricehub 双指针+贪心
    BZOJ 4903: [Ctsc2017]吉夫特 数论+dp
    BZOJ 4500: 矩阵 带权并查集
    草稿
    BZOJ 5082: 弗拉格 矩阵乘法
    BZOJ 4764: 弹飞大爷 LCT
    BZOJ 3309: DZY Loves Math 莫比乌斯反演+打表
  • 原文地址:https://www.cnblogs.com/slgkaifa/p/7287018.html
Copyright © 2020-2023  润新知