先上图：
自己定义的PopMenu类：
package com.app.view;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.PopupWindow;
import com.app.utils.TDevice;
import com.base.fun.R;
/**
* 由下向上弹出菜单
*/
public class MyPopMenu {
/**
* 菜单点击事件
*/
public static interface MenuClick {
/**
* 点击了菜单项
*/
public void onClick(MenuItem item);
/**
* 点击了取消button
*/
public void onCancel();
/**
* 点击了空白处
*/
public void onClickBlank();
}
/**
* 菜单项
*/
public static class MenuItem {
public int id; // 菜单ID
public String label; // 菜单label
public MenuItem(int id, String label) {
this.id = id;
this.label = label;
}
@Override
public String toString() {
return "MenuItem [id=" + id + ", label=" + label + "]";
}
}
// 弹出菜单的ID、显示label
private ArrayList<MenuItem> mMenus;
// 菜单点击回调
private MenuClick mCallback;
private Context mContext;
/**
* 弹出菜单
*
* @param menus
* 菜单项
* @param callback
* 菜单点击回调
*/
public MyPopMenu(Context ctx, ArrayList<MenuItem> menus, MenuClick callback) {
mContext = ctx;
mMenus = menus;
mCallback = callback;
initPopupWindow();
}
/**
* 初始化菜单项
*/
private View initMenus(Context ctx) {
LayoutInflater inflater = LayoutInflater.from(ctx);
View root = inflater.inflate(R.layout.lyt_pop_menu, null);
if (mMenus == null && mMenus.isEmpty()) {
return root;
}
root.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mCallback != null) {
// 点击空白处
mCallback.onClickBlank();
}
}
});
ViewGroup lytMenus = (ViewGroup) root.findViewById(R.id.lyt_menus);
lytMenus.removeAllViews();
// 加入菜单项
for (int i = 0, size = mMenus.size(); i < size; ++i) {
final MenuItem item = mMenus.get(i);
View vMenu = inflater.inflate(R.layout.lyt_menu_item, null);
lytMenus.addView(vMenu);
vMenu.setId(item.id); // 菜单ID
vMenu.setTag(item);
// 第一个菜单是不显示上面的“切割线的”
if (i == 0) {
vMenu.findViewById(R.id.line).setVisibility(View.GONE);
}
Button btn = (Button) vMenu.findViewById(R.id.btn_menu);
btn.setText(item.label);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mCallback != null) {
mCallback.onClick(item);
}
}
});
}
// 取消button
root.findViewById(R.id.btn_cancel).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mCallback != null) {
mCallback.onCancel();
}
}
});
return root;
}
private PopupWindow mPopupWindow;
/**
* 设置菜单enable状态
*/
public void setEnabelMenu(int menuId, boolean enabel) {
if (mPopupWindow != null) {
View root = mPopupWindow.getContentView();
if (root != null) {
ViewGroup lytMenus = (ViewGroup) root
.findViewById(R.id.lyt_menus);
for (int i = 0, count = lytMenus.getChildCount(); i < count; ++i) {
View menu = lytMenus.getChildAt(i);
if (menu.getId() == menuId) {
menu.setEnabled(enabel);
menu.findViewById(R.id.btn_menu).setEnabled(enabel);
break;
}
}
}
}
}
private void initPopupWindow() {
if (mPopupWindow == null) {
mPopupWindow = new PopupWindow(mContext);
mPopupWindow = new PopupWindow((int) TDevice.getScreenWidth(),
(int) TDevice.getScreenHeight());
View vMenus = initMenus(mContext);
mPopupWindow.setContentView(vMenus);
}
}
/**
* 显示菜单
*/
public void show(View parentView) {
initPopupWindow();
if (mPopupWindow.isShowing()) {
return;
}
mPopupWindow.showAtLocation(parentView, Gravity.CENTER, 0, 0);
}
/**
* 隐藏菜单
*/
public void hide() {
mPopupWindow.dismiss();
}
}
layout文件：
1、菜单item
<?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="match_parent"
android:orientation="vertical" >
<View
android:id="@+id/line"
android:layout_width="match_parent"
android:layout_height="1dip"
android:background="@color/color_listview_divider" />
<Button
android:id="@+id/btn_menu"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:text="@string/str_cancel" />
</LinearLayout>
2、菜单layout：
<?
xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/lyt_popmenu"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#7f000000" >
<Button
android:id="@+id/btn_cancel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="10dip"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:layout_marginTop="@dimen/space_15"
android:background="@drawable/menu_bkg"
android:text="@string/str_cancel" />
<LinearLayout
android:id="@+id/lyt_menus"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@id/btn_cancel"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:background="@drawable/menu_bkg"
android:orientation="vertical" >
<include layout="@layout/lyt_menu_item" />
<include layout="@layout/lyt_menu_item" />
<include layout="@layout/lyt_menu_item" />
</LinearLayout>
</RelativeLayout>
使用代码：
// 点击头像弹出菜单
private MyPopMenumPopMenus;
// 菜单项
private ArrayList<MenuItem>mMenus;
// 菜单回调
private MenuClickmMenuClickListener =new MenuClick() {
@Override
public void onClick(MenuItem item) {
if (item !=null) {
if (MENU_ID_DELETE == item.id) {
// 删除...
} else if (MENU_ID_TAKEPHOTO == item.id) {
jumpToTakePhoto();
} else if (MENU_ID_SELECT == item.id) {
jumpToSelectPic();
}
}
onCancel();
}
@Override
public void onCancel() {
if (mPopMenus !=null) {
mPopMenus.hide();
}
}
@Override
public void onClickBlank() {
onCancel();
}
};
// 点击头像弹出的菜单项
privatefinalint MENU_ID_DELETE = 0;
privatefinalint MENU_ID_TAKEPHOTO = 1;
privatefinalint MENU_ID_SELECT = 2;
/**
* 点击头像，弹出菜单
*/
private void showHeaderMenus() {
if (mPopMenus ==null) {
mMenus = new ArrayList<MenuItem>();
mMenus.add(new MenuItem(MENU_ID_DELETE,"删除"));
mMenus.add(new MenuItem(MENU_ID_TAKEPHOTO,"拍照"));
mMenus.add(new MenuItem(MENU_ID_SELECT,"从相冊里选择"));
mPopMenus =new MyPopMenu(this,mMenus,mMenuClickListener);
// 灰掉“删除菜单”
mPopMenus.setEnabelMenu(MENU_ID_DELETE,false);
}
mPopMenus.show(findViewById(R.id.lyt_header));
}