王立平--PopupWindow

<span style="font-size:14px;">package com.main;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.PopupWindow;

public class MainActivity extends Activity {

private static final String TAG = "MainActivity";
private Button button;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

button = (Button) findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// 显示 popupWindow
PopupWindow popupWindow = makePopupWindow(MainActivity.this);
int[] xy = new int[2];
button.getLocationOnScreen(xy);
popupWindow.showAtLocation(button, Gravity.RIGHT | Gravity.TOP,
-xy[0] / 2, xy[1] + button.getWidth());
// popupWindow.showAsDropDown(button,0, 0);
}
});
}

// 创建一个包括自己定义view的PopupWindow
private PopupWindow makePopupWindow(Context cx) {
PopupWindow window;
window = new PopupWindow(cx);

// View contentView =
// LayoutInflater.from(this).inflate(R.layout.popwindow, null);
// window.setContentView(contentView);
Button b1 = new Button(this);
b1.setText("first");
b1.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));

Button b2 = new Button(this);
b2.setText("Second");
b2.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));

LinearLayout linearLayout = new LinearLayout(this);
linearLayout.addView(b1);
linearLayout.addView(b2);
linearLayout.setOrientation(LinearLayout.VERTICAL);

window.setContentView(linearLayout);
window.setBackgroundDrawable(getResources().getDrawable(
R.drawable.ic_launcher));
//		window.setWidth(DisplayManager.dipToPixel(150));
//		window.setHeight(DisplayManager.dipToPixel(150));
window.setWidth(150);
window.setHeight(150);

// 设置PopupWindow外部区域是否可触摸
window.setFocusable(true); // 设置PopupWindow可获得焦点
window.setTouchable(true); // 设置PopupWindow可触摸
window.setOutsideTouchable(true); // 设置非PopupWindow区域可触摸
return window;
}
}</span>

<span style="font-size:14px;"><?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@android:color/darker_gray"
android:orientation="horizontal" >

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Title" />

<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="click" />
</LinearLayout>

</LinearLayout></span>