DropPopMenu

一、介绍

本项目是对带箭头的下拉弹出菜单进行了封装,使用简单,同时有如下特点:
 1、可以动态修改菜单的背景;
 2、弹出位置是依赖于操作按钮的位置显示,处理了按钮在边界位置引起的菜单显示错位问题;
 3、菜单宽度以文字的最大长度作为宽度动态计算了;
 4、菜单默认弹窗方向是在操作按钮下面,当操作按钮在屏幕底部时,或者菜单的
 高度不能完全显示时,菜单是显示在操作按钮上面的

二、使用

1、默认风格
 View view = findViewById......
 mDropPopMenu = new DropPopMenu(this);
 mDropPopMenu.setOnItemClickListener(new DropPopMenu.OnItemClickListener() {
 @Override
 public void onItemClick(AdapterView<?> adapterView, View view, int position, long id, MenuItem menuItem) {
 Toast.makeText(MainActivity.this, "点击了 " + menuItem.getItemId(), Toast.LENGTH_SHORT).show();
 }
 });
 mDropPopMenu.setMenuList(getMenuList());
 mDropPopMenu.show(view);
 private List<MenuItem> getMenuList() {
 List<MenuItem> list = new ArrayList<>();
 list.add(new MenuItem(1, "选项"));
 list.add(new MenuItem(2, "选项选项选项"));
 list.add(new MenuItem(3, "选项选项选项选项"));
 list.add(new MenuItem(4, "选项选项"));
 list.add(new MenuItem(5, "选项选项选项"));
 list.add(new MenuItem(5, "选项选项选项选项"));
 return list;
 }

2、改变弹窗背景、文字颜色
 public void onClickPopWhite(View view) {
 DropPopMenu dropPopMenu = new DropPopMenu(this);
 dropPopMenu.setTriangleIndicatorViewColor(Color.WHITE);
 dropPopMenu.setBackgroundResource(R.drawable.bg_drop_pop_menu_white_shap);
 dropPopMenu.setItemTextColor(Color.BLACK);
 dropPopMenu.setOnItemClickListener(new DropPopMenu.OnItemClickListener() {
 @Override
 public void onItemClick(AdapterView<?> adapterView, View view, int position, long id, MenuItem menuItem) {
 Toast.makeText(MainActivity.this, "点击了 " + menuItem.getItemId(), Toast.LENGTH_SHORT).show();
 }
 });
 dropPopMenu.setMenuList(getMenuList());
 dropPopMenu.show(view);
}

3、显示图标
 public void onClickPopIcon(View view) {
 DropPopMenu dropPopMenu = new DropPopMenu(this);
 dropPopMenu.setTriangleIndicatorViewColor(Color.WHITE);
 dropPopMenu.setBackgroundResource(R.drawable.bg_drop_pop_menu_white_shap);
 dropPopMenu.setItemTextColor(Color.BLACK);
 dropPopMenu.setIsShowIcon(true);
 dropPopMenu.setOnItemClickListener(new DropPopMenu.OnItemClickListener() {
 @Override
 public void onItemClick(AdapterView<?> adapterView, View view, int position, long id, MenuItem menuItem) {
 Toast.makeText(MainActivity.this, "点击了 " + menuItem.getItemId(), Toast.LENGTH_SHORT).show();
 }
 });
 dropPopMenu.setMenuList(getIconMenuList());
 dropPopMenu.show(view);
}
private List<MenuItem> getIconMenuList() {
 List<MenuItem> list = new ArrayList<>();
 list.add(new MenuItem(R.drawable.ic_honor_level1, 1, "选项1"));
 list.add(new MenuItem(R.drawable.ic_honor_level2, 2, "选项2"));
 list.add(new MenuItem(R.drawable.ic_honor_level3, 3, "选项3"));
 return list;
}