kevenyang/DropPopMenu

显示位置跟随操作按钮显示的带箭头的弹出菜单

DropPopMenu

显示位置跟随操作按钮显示的带箭头的弹出菜单

CSDN：http://blog.csdn.net/hmyang314/article/details/70920295

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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

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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;
    }

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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;
}