从标签布局Android获取列表中的所有标签(标签)标签

问题描述：

我已经用视图分页器设置了标签布局，如下:

I have set tab layout with view pager, As follows :

 sectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager(), suraName, suraId, ayatId);
        final ViewPager viewPager = findViewById(R.id.view_pager);
        viewPager.setAdapter(sectionsPagerAdapter);
         tabsLayout = findViewById(R.id.tabs);
        tabsLayout.animate();

        tabsLayout.setupWithViewPager(viewPager);

现在，我想要一个列表中的所有标签标签.如何实现?

Now, I want all tabs label in a list. How to achieve that ?

答

那么，如何从 tabsLayout 获取所有的 tab 标签.在 oncreate 设置好所有的适配器之后，viewpager 和 tabsLayout(你也可以等一段时间):

So, how to get all tab labels from tabsLayout. In oncreate after setting up all adapters, viewpager and tabsLayout (you can wait for some time also) :

         ArrayList<String> labelList = new ArrayList<>();

        labelList = tabLabelList(tabsLayout, labelList);
        if(labelList!=null)
        Log.i(TAG, "onCreate: list labels"+labelList.toString());

还有:

public static ArrayList<String> tabLabelList(View view, ArrayList<String> tabLabelsList) {
        if (!(view instanceof ViewGroup)) {
            return null;
        }

        ViewGroup group = (ViewGroup)view;
        for (int i = 0; i < group.getChildCount(); i++) {
            View child = group.getChildAt(i);
            if (child instanceof TextView) {
                String s = ((TextView)child).getText().toString();
                tabLabelsList.add (s);
            } else {
                tabLabelList(child, tabLabelsList);
            }
        }
        return  tabLabelsList;
    }

通过这种方式，可以从以 textView 作为子项的视图中获取所有文本.

This way one can get all text from a view which has a textView as child.

从标签布局Android获取列表中的所有标签(标签)标签

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