Disable Tabs in TabLayout

Question

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) {

        }
    });

Solution 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

Solution 2

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

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

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

Solution 3

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);

Solution 4

Here's 2 helper functions (kotlin) for disabling and enabling a TabItem by passing its name.

Tested using com.google.android.material:material:1.3.0-alpha02

fun disableTabItemAt(tabLayout: TabLayout?, tabText: String) {
    (tabLayout?.getChildAt(0) as? ViewGroup)?.children?.iterator()?.forEach {
            if((it as TabLayout.TabView).tab?.text == tabText) {
                it.isEnabled = false
                it.alpha = 0.5f
            }
    }
}

fun enableTabItemAt(tabLayout: TabLayout?, tabText: String) {
    (tabLayout?.getChildAt(0) as? ViewGroup)?.children?.iterator()?.forEach {
        if((it as TabLayout.TabView).tab?.text == tabText) {
            it.isEnabled = true
            it.alpha = 1f
        }
    }
}

So if your tab names are fixed, then you could do

disableTabItemAt(tabLayout, "Tab1")

// later enable it

enableTabItemAt(tabLayout, "Tab1")

View more solutions