Disable Tabs in TabLayout

问题

I have used TabLayout from the latest design support library in my app. The tabs are attached to a viewpager which loads the fragments for each tab. I want to disable all the tabs until the viewpager loads the fragment for user selected tab. I am not able to disable the tablayout or make it non-clickable. I had used setEnabled(false) and setClickable(false) but it is not working. I am able to make it invisible by using setVisiblity(View.GONE) but I want the tabs to be visible at all times.

    tabLayout = (TabLayout) findViewById(R.id.tabLayout);
    tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
    tabLayout.setTabMode(TabLayout.MODE_FIXED);
    tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.near_me_hover).setTag(1));
    tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.all_hostels).setTag(2));
    tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.top_five).setTag(3));
    tabLayout.addTab(tabLayout.newTab().setIcon(R.drawable.advanced_search).setTag(4));
    tabLayout.setEnabled(false);
    tabLayout.setClickable(false);

XML

android.support.design.widget.TabLayout
android:id="@+id/tabLayout" android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="0.15"
android:scrollbars="horizontal"
android:splitMotionEvents="false" >

        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            switch (tab.getPosition()) {
                case 0:
                    viewPager.setCurrentItem(tab.getPosition());
                    tab.setIcon(R.drawable.near_me_hover);
                    break;
                case 1:
                    viewPager.setCurrentItem(tab.getPosition());
                    tab.setIcon(R.drawable.all_hostels_hover);
                    break;
                case 2:
                    viewPager.setCurrentItem(tab.getPosition());
                    tab.setIcon(R.drawable.top_five_hover);
                    break;
                case 3:
                    viewPager.setCurrentItem(tab.getPosition());
                    tab.setIcon(R.drawable.advanced_search_hover);
                    break;
            }
        }

        @Override
        public void onTabUnselected(TabLayout.Tab tab) {
            switch (tab.getPosition()) {
                case 0:
                    tab.setIcon(R.drawable.near_me);
                    break;
                case 1:
                    tab.setIcon(R.drawable.all_hostels);
                    break;
                case 2:
                    tab.setIcon(R.drawable.top_five);
                    break;
                case 3:
                    tab.setIcon(R.drawable.advanced_search);

                    break;
            }

        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {
        }
    });
    viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
        }

        @Override
        public void onPageSelected(int position) {
            tabLayout.getTabAt(position).select();
        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });

回答1:

there are 3 methods implemented by the tab click listener, one of them is onTabSelected() put a boolean condition to check if your fragment is initialised. Then if that condition is satisfied then allow transaction to take place. Also initialize the tabs after your fragment code

回答2:

Another trick:

You can put another blank transparent view upon tablayout until your requirement fulfill. When you need to enable/show the tabs then just hide the blank view.

回答3:

If you want to disable tab, you just need use a customView

First at all, create your custom layout (textView as an example)

v_tabview.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/tabItemView"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:gravity="center"
  android:maxLines="1"
  android:textColor="@drawable/selector_tab" />

create selector, for changing state enable/disable (changing color)

selector_tab.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:color="#9e9e9e" android:state_enabled="false" /> //gray
  <item android:color="#64b246" android:state_enabled="true" /> //green
</selector>

then inflate it, set names and add to the tabLayout

arrayStringNames.forEach { name ->
    val textView: TextView = inflater.inflate(R.layout.v_tabview, tabLayout, false) as TextView
    textView.text = name
    val tab = tabLayout.newTab()
    tab.customView = textView
    tabLayout.addTab(tab)
}

and at the end, a magic trick! In that sample code I disabling all tabs. If you need disable second and third tab, check "index" in a cycle and disable if you need

 for (index in 0 until tabLayout.tabCount) {
   ((tabLayout.getTabAt(index)?.customView) as? TextView)?.let { textView ->
     textView.isEnabled = enable //boolean
     (textView.parent as View).enable(enable)
  }
}

回答4:

To enable specific tab at position :

LinearLayout tabStrip = ((LinearLayout)tabLayout.getChildAt(0));     
tabStrip.getChildAt(position).setOnTouchListener((v,event)->false);

To disable the tab at position :

 tabStrip.getChildAt(position).setOnTouchListener((v,event)->true);

回答5:

you can create a util function, my fun in Kotlin:

fun disalbeTabAt(tablayout: TabLayout?, index: Int) {
  (tablayout?.getChildAt(0) as? ViewGroup)?.getChildAt(0)?.isEnabled = false
}

When you want do something with a view, you can debug or click in parrent view to know how it's created, by this way you can do anything you that you want. For this case, you can go to Tablayout class to understand.

回答6:

If you mean to disable one tab button on TabLayout, then try this code:

tabHost.getTabWidget().getChildTabViewAt(your_index).setEnabled(false);

来源：https://stackoverflow.com/questions/33029729/disable-tabs-in-tablayout