MainActivity如下:
package com.cn.testpopupwindow;
import android.app.Activity;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.PopupWindow;
public class MainActivity extends Activity {
private Button button;
private Button button1;
private Button button2;
private Button button3;
private Button button4;
private View popupWindowView;
private PopupWindow popupWindow;
private LayoutInflater inflater;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button=(Button) findViewById(R.id.button);
button.setOnClickListener(new ButtonOnClickListener());
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
private class ButtonOnClickListener implements OnClickListener{
public void onClick(View v) {
inflater=(LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
popupWindowView=inflater.inflate(R.layout.popupwindow, null);
popupWindow=new PopupWindow(popupWindowView, LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT,true);
//必须要有这句否则弹出popupWindow后监听不到Back键
popupWindow.setBackgroundDrawable(new BitmapDrawable());
popupWindow.showAtLocation(findViewById(R.id.button), Gravity.NO_GRAVITY, 0, 0);
//让popupWindow获得焦点
popupWindow.setFocusable(true);
//设置动画
popupWindow.setAnimationStyle(R.style.popupWindowAnimation);
popupWindow.update();
//popupWindow中按钮的处理
button1=(Button) popupWindowView.findViewById(R.id.button1);
button2=(Button) popupWindowView.findViewById(R.id.button2);
button3=(Button) popupWindowView.findViewById(R.id.button3);
button4=(Button) popupWindowView.findViewById(R.id.button4);
button1.setOnClickListener(new ButtonsOnClickListener());
button2.setOnClickListener(new ButtonsOnClickListener());
button3.setOnClickListener(new ButtonsOnClickListener());
button4.setOnClickListener(new ButtonsOnClickListener());
}
}
private class ButtonsOnClickListener implements OnClickListener {
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1:
System.out.println("点击了按钮1");
break;
case R.id.button2:
System.out.println("点击了按钮2");
break;
case R.id.button3:
System.out.println("点击了按钮3");
break;
case R.id.button4:
System.out.println("点击了按钮4");
break;
default:
break;
}
}
}
//监听Back事件
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode==KeyEvent.KEYCODE_BACK) {
if (popupWindow!=null&&popupWindow.isShowing()) {
popupWindow.dismiss();
} else {
MainActivity.this.finish();
}
}
return super.onKeyDown(keyCode, event);
}
}
Main.xml如下:
<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" >
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test"
android:layout_centerInParent="true"
/>
</RelativeLayout>
popupwindow.xml如下:
<?xml version="1.0" encoding="utf-8"?>
<!--注意:在RelativeLayout里面是LinearLayout,且是vertical的-->
<!--第一个Button的 layout_marginTop是相对于父控件而言的-->
<!--但是第二个Button的layout_marginTop是相对于第一个Button而言的 -->
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f0838b8b"
android:orientation="vertical"
>
<LinearLayout
android:id="@+id/linerLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical"
>
<Button
android:id="@+id/button1"
android:layout_width="200dip"
android:layout_height="wrap_content"
android:text="Button1"
android:textSize="20sp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dip"
/>
<Button
android:id="@+id/button2"
android:layout_width="200dip"
android:layout_height="wrap_content"
android:text="Button2"
android:textSize="20sp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dip"
/>
<Button
android:id="@+id/button3"
android:layout_width="200dip"
android:layout_height="wrap_content"
android:text="Button3"
android:textSize="20sp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dip"
/>
<Button
android:id="@+id/button4"
android:layout_width="200dip"
android:layout_height="wrap_content"
android:text="Button4"
android:textSize="20sp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dip"
/>
</LinearLayout>
</RelativeLayout>
style.xml如下
<resources xmlns:android="http://schemas.android.com/apk/res/android">
<style name="AppTheme" parent="android:Theme.Light" />
<style name="popupWindowAnimation" mce_bogus="1" parent="android:Animation">
<item name="android:windowEnterAnimation">@anim/enter</item>
<item name="android:windowExitAnimation">@anim/exit</item>
</style>
</resources>
enter.xml动画如下:
<?xml version="1.0" encoding="utf-8"?>
<!-- android:fromYDelta:动画开始的点离当前View X坐标上的差值 -->
<!-- 利用100%p表示该动画在当前View的最下方 -->
<set
xmlns:android="http://schemas.android.com/apk/res/android">
<translate
android:duration="1500"
android:fromYDelta="100%p"
android:interpolator="@android:anim/decelerate_interpolator"
android:toYDelta="0" />
</set>
exit.xml动画如下:
<?xml version="1.0" encoding="utf-8"?>
<!-- Alpha=1.0表示不透明,Alpha=0.0表示透明 -->
<set
xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator" >
<alpha
android:duration="1000"
android:fromAlpha="1.0"
android:toAlpha="0.0"
/>
</set>
