没有

Question

我需要实现不能成为GridView或ListView的菜单。项目彼此相邻，如果没有地方，项目应显示在下一行，如图所示

我开始实现基于SpannableString和ReplacementSpan的实现，但它只支持基本样式，我对选定状态有问题。

实施此类菜单的最佳方法是什么？

Answer 1

也许这会对你有所帮助

/**
 * Copyright 2011 Sherif 
 * Updated by Karim Varela to handle LinearLayouts with other views on either side.
 * @param linearLayout
 * @param views : The views to wrap within LinearLayout
 * @param context
 * @param extraView : An extra view that may be to the right or left of your LinearLayout.
 * @author Karim Varela
 **/
private void populateViews(LinearLayout linearLayout, View[] views, Context context, View extraView)
{
    extraView.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

    // kv : May need to replace 'getSherlockActivity()' with 'this' or 'getActivity()'
    Display display = getActivity().getWindowManager().getDefaultDisplay();
    linearLayout.removeAllViews();
    int maxWidth = display.getWidth() - extraView.getMeasuredWidth() - 20;

    linearLayout.setOrientation(LinearLayout.VERTICAL);

    LinearLayout.LayoutParams params;
    LinearLayout newLL = new LinearLayout(context);
    newLL.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
    newLL.setGravity(Gravity.LEFT);
    newLL.setOrientation(LinearLayout.HORIZONTAL);

    int widthSoFar = 0;

    for (int i = 0; i < views.length; i++)
    {
        LinearLayout LL = new LinearLayout(context);
        LL.setOrientation(LinearLayout.HORIZONTAL);
        LL.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM);
        LL.setLayoutParams(new ListView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

        views[i].measure(0, 0);
        params = new LinearLayout.LayoutParams(views[i].getMeasuredWidth(), LayoutParams.WRAP_CONTENT);
        params.setMargins(5, 0, 5, 0);

        LL.addView(views[i], params);
        LL.measure(0, 0);
        widthSoFar += views[i].getMeasuredWidth();
        if (widthSoFar >= maxWidth)
        {
            linearLayout.addView(newLL);

            newLL = new LinearLayout(context);
            newLL.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
            newLL.setOrientation(LinearLayout.HORIZONTAL);
            newLL.setGravity(Gravity.LEFT);
            params = new LinearLayout.LayoutParams(LL.getMeasuredWidth(), LL.getMeasuredHeight());
            newLL.addView(LL, params);
            widthSoFar = LL.getMeasuredWidth();
        }
        else
        {
            newLL.addView(LL);
        }
    }
    linearLayout.addView(newLL);
}

Answer 2

我终于发现了一个名为Android流程布局的库，效果很好https://github.com/ApmeM/android-flowlayout