BottomNavigationView with more than 3 Items: tab title is hiding
Solution 1:
The solution using reflection doesn't work anymore because the field mShiftingMode was removed.
There's an easy way to do it now:
Use Support Library 28 or higher and just add app:labelVisibilityMode="labeled"
to your BottomNavigationView
XML declaration.
Hope it helps.
Solution 2:
UPDATE
removeShiftMode() is no longer needed, as in support library 28.0.0-alpha1 we can now add Labels.
In XML:
<android.support.design.widget.BottomNavigationView
app:labelVisibilityMode="labeled" />
For programmatically change:
mBottomNavigationView.setLabelVisibilityMode(LabelVisibilityMode.LABEL_VISIBILITY_LABELED);
For this to work: update the design support library to 28.0.0-alpha1
Here is a Good read
FOR OLDER SUPPORT LIBRARY:
in your bottom_bar_menu.xml
.Change the showAsAction
attribute
<item android:id="@id/menu_item"
android:title="text"
android:icon="@drawable/drawable_resource_name"
android:showAsAction="always|withText" />
in build.gradle:
compile 'com.android.support:design:25.3.1'
BOTTOM NAVIGATIONVIEW MORE THAN 3 ITEMS: use removeShiftMode()
method
in BottomNavigationViewHelper.java
Use:
import android.annotation.SuppressLint;
import android.support.design.internal.BottomNavigationItemView;
import android.support.design.internal.BottomNavigationMenuView;
import android.support.design.widget.BottomNavigationView;
import java.lang.reflect.Field;
public class BottomNavigationViewHelper {
@SuppressLint("RestrictedApi")
public static void removeShiftMode(BottomNavigationView view) {
BottomNavigationMenuView menuView = (BottomNavigationMenuView) view.getChildAt(0);
try {
Field shiftingMode = menuView.getClass().getDeclaredField("mShiftingMode");
shiftingMode.setAccessible(true);
shiftingMode.setBoolean(menuView, false);
shiftingMode.setAccessible(false);
for (int i = 0; i < menuView.getChildCount(); i++) {
BottomNavigationItemView item = (BottomNavigationItemView) menuView.getChildAt(i);
//noinspection RestrictedApi
item.setShiftingMode(false);
// set once again checked value, so view will be updated
//noinspection RestrictedApi
item.setChecked(item.getItemData().isChecked());
}
} catch (NoSuchFieldException e) {
Log.e("BottomNav", "Unable to get shift mode field", e);
} catch (IllegalAccessException e) {
Log.e("BottomNav", "Unable to change value of shift mode", e);
}
}
}
Call it using:
BottomNavigationView bottomNavigationView = (BottomNavigationView)findViewById(R.id.bottom_navigation);
BottomNavigationViewHelper.removeShiftMode(bottomNavigationView);
It will disable the shift animation of the title text and enable the text to be displayed.