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