PopupWindow的应用 1
PopupWindow的使用，这里是分析QQ通讯录的源码看到的，这里分享下：

以“拨号盘”界面的-最近联系人 右边的“筛选”按钮为例：

<?xml version="1.0" encoding="utf-8"?><LinearLayout android:orientation="vertical" android:id="@+id/tabcontent"android:layout_width="fill_parent" android:layout_height="fill_parent"xmlns:android="http://schemas.android.com/apk/res/android"><RelativeLayout android:id="@+id/tv_call_log" android:background="@drawable/bg_header" android:layout_width="fill_parent" android:layout_height="wrap_content"><TextView android:textSize="20.0sp" android:textColor="#ffffff" android:gravity="center" android:id="@+id/titleText"android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="最近联系人" android:layout_centerInParent="true" /><com.farmer.views.PopuMenuTextButtonandroid:textColor="#ffffff" android:gravity="center" android:id="@+id/titleImg" android:background="@drawable/bg_top_btn" android:layout_width="46.0dip"android:layout_height="34.0dip" android:layout_marginRight="4.0dip" android:text="筛选" android:layout_alignParentRight="true" android:layout_centerVertical="true" /></RelativeLayout></LinearLayout>

上面的PopuMenuTextButton 就是需要复写的Butoon

public abstract interface nl{  public abstract void popAwindow(View paramView);}public class PopuMenuTextButton extends Button{  private nl pwindow;  public PopuMenuTextButton(Context paramContext, AttributeSet paramAttributeSet)  {    super(paramContext, paramAttributeSet);  }  protected void onDetachedFromWindow()  {    if (this.pwindow != null)      this.pwindow.popAwindow(this);    super.onDetachedFromWindow();  }  public void setOnDetachedListener(nl paramnl)  {    this.pwindow = paramnl;  }}

下面就是Activty的关键代码：

private PopuMenuTextButton pbtn;private PopupWindow pwindow;         //onCreate.......protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.layout_dialerpad);this.pbtn = (PopuMenuTextButton) findViewById(R.id.titleImg);pbtn.setOnClickListener(this);}       //显示PopupWindow 窗口       public void showPop(){int i1 = -1;    if (upOrdown() == i1){                  //这边是需要再构造一个布局文件的    View localView1 = LayoutInflater.from(this).inflate(    R.layout.layout_popup_calllog_type, null);    View localView2 = localView1.findViewById(R.id.popup_callLog_all);    View localView3 = localView1.findViewById(R.id.popup_callLog_miss);    View localView4 = localView1.findViewById(R.id.popup_callLog_incoming);    View localView5 = localView1.findViewById(R.id.popup_callLog_outgoing);    localView2.setOnClickListener(this);    localView3.setOnClickListener(this);    localView4.setOnClickListener(this);    localView5.setOnClickListener(this);    PopupWindow localPopupWindow1 = new PopupWindow(localView1, i1, i1);    this.pwindow = localPopupWindow1;    this.pwindow.showAsDropDown(this.pbtn);    }}public int upOrdown() {int i1 = -1;if ((this.pwindow != null) && (this.pwindow.isShowing())) {this.pwindow.dismiss();i1 = 1;}return i1;}@Overridepublic void popAwindow(View paramView) {upOrdown();}

PopupWindow的布局文件layout_popup_calllog_type 如下 如下 如下.....
怎么也写不下了 我悲剧 只能写到下个文章中去了。