Align-Center SlidingTabLayout

After I moved my app to 5.0, I had to move from the basic tabs to the slidingTabLayout that a google developer provides .

The problem is, I can’t figure out how to center both buttons in a way that they get both centered like the old one. Btw, I’m not talking about the style, just the positioning of the buttons, sharing the same amount o widht space!
To make things clear I’ll post some images:

  • Creating a directory in /sdcard fails
  • Android: ListView with CheckBox, populated from SQLite database not quite working
  • How to stop all sounds in SoundPool?
  • Admob with Android: unable to parse android:configChanges in manifest
  • Android Studio Project Encoding Error
  • Can we send data from an android device to another android device directly (p2p) without server in the middle?
  • What I have now:

    enter image description here

    What I expect to have:

    enter image description here

    My layout:

    <LinearLayout xmlns:android=""
        < xmlns:android=""
            tools:context="com.maddogs.mymoney.RequestActivity" />

    Thank you very much !

    Related posts:

    Handling Sessions on Google App Engine with Android/IPhone
    Change the color of divider in LinearLayout
    Fastest way to draw a MediaCodec-decoded video frame to screen?
    ImageView src with drawable selector ignores enabled state
    Find out if different home- and lockscreen wallpapers are set
    Crop video with FFMpeg is very slow
  • Disable scrolling in all mobile devices
  • Hiding strings in Obfuscated code
  • Share library project's manifest services and permissions
  • Android: what does “setTextFilterEnabled” method do?
  • Different row layouts in ListView
  • Weird behavior of ListView item and state selector background drawable
  • 3 Solutions collect form web for “Align-Center SlidingTabLayout”

    use setDistributeEvenly() , it will do what you want. like this:

    slideTab = (SlidingTabLayout)findViewById(;

    EDIT: SlidingTabLayout copied from Google IO

    import android.content.Context;
    import android.util.AttributeSet;
    import android.util.SparseArray;
    import android.util.TypedValue;
    import android.view.Gravity;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.HorizontalScrollView;
    import android.widget.LinearLayout;
    import android.widget.TextView;
     * To be used with ViewPager to provide a tab indicator component which give constant feedback as to
     * the user's scroll progress.
     * <p>
     * To use the component, simply add it to your view hierarchy. Then in your
     * {@link} or {@link} call
     * {@link #setViewPager(ViewPager)} providing it the ViewPager this layout is being used for.
     * <p>
     * The colors can be customized in two ways. The first and simplest is to provide an array of colors
     * via {@link #setSelectedIndicatorColors(int...)}. The
     * alternative is via the {@link TabColorizer} interface which provides you complete control over
     * which color is used for any individual position.
     * <p>
     * The views used as tabs can be customized by calling {@link #setCustomTabView(int, int)},
     * providing the layout ID of your custom layout.
    public class SlidingTabLayout extends HorizontalScrollView {
         * Allows complete control over the colors drawn in the tab layout. Set with
         * {@link #setCustomTabColorizer(TabColorizer)}.
        public interface TabColorizer {
             * @return return the color of the indicator used when {@code position} is selected.
            int getIndicatorColor(int position);
        private static final int TITLE_OFFSET_DIPS = 24;
        private static final int TAB_VIEW_PADDING_DIPS = 16;
        private static final int TAB_VIEW_TEXT_SIZE_SP = 18;
        private int mTitleOffset;
        private int mTabViewLayoutId;
        private int mTabViewTextViewId;
        private boolean mDistributeEvenly;
        private ViewPager mViewPager;
        private SparseArray<String> mContentDescriptions = new SparseArray<String>();
        private ViewPager.OnPageChangeListener mViewPagerPageChangeListener;
        private final SlidingTabStrip mTabStrip;
        public SlidingTabLayout(Context context) {
            this(context, null);
        public SlidingTabLayout(Context context, AttributeSet attrs) {
            this(context, attrs, 0);
        public SlidingTabLayout(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
            // Disable the Scroll Bar
            // Make sure that the Tab Strips fills this View
            mTitleOffset = (int) (TITLE_OFFSET_DIPS * getResources().getDisplayMetrics().density);
            mTabStrip = new SlidingTabStrip(context);
            addView(mTabStrip, LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
         * Set the custom {@link TabColorizer} to be used.
         * If you only require simple custmisation then you can use
         * {@link #setSelectedIndicatorColors(int...)} to achieve
         * similar effects.
        public void setCustomTabColorizer(TabColorizer tabColorizer) {
        public void setDistributeEvenly(boolean distributeEvenly) {
            mDistributeEvenly = distributeEvenly;
         * Sets the colors to be used for indicating the selected tab. These colors are treated as a
         * circular array. Providing one color will mean that all tabs are indicated with the same color.
        public void setSelectedIndicatorColors(int... colors) {
         * Set the {@link ViewPager.OnPageChangeListener}. When using {@link SlidingTabLayout} you are
         * required to set any {@link ViewPager.OnPageChangeListener} through this method. This is so
         * that the layout can update it's scroll position correctly.
         * @see ViewPager#setOnPageChangeListener(ViewPager.OnPageChangeListener)
        public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
            mViewPagerPageChangeListener = listener;
         * Set the custom layout to be inflated for the tab views.
         * @param layoutResId Layout id to be inflated
         * @param textViewId id of the {@link TextView} in the inflated view
        public void setCustomTabView(int layoutResId, int textViewId) {
            mTabViewLayoutId = layoutResId;
            mTabViewTextViewId = textViewId;
         * Sets the associated view pager. Note that the assumption here is that the pager content
         * (number of tabs and tab titles) does not change after this call has been made.
        public void setViewPager(ViewPager viewPager) {
            mViewPager = viewPager;
            if (viewPager != null) {
                viewPager.setOnPageChangeListener(new InternalViewPagerListener());
         * Create a default view to be used for tabs. This is called if a custom tab view is not set via
         * {@link #setCustomTabView(int, int)}.
        protected TextView createDefaultTabView(Context context) {
            TextView textView = new TextView(context);
            textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, TAB_VIEW_TEXT_SIZE_SP);
            textView.setLayoutParams(new LinearLayout.LayoutParams(
                    ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            TypedValue outValue = new TypedValue();
                    outValue, true);
            int padding = (int) (TAB_VIEW_PADDING_DIPS * getResources().getDisplayMetrics().density);
            textView.setPadding(padding, padding, padding, padding);
            return textView;
        private void populateTabStrip() {
            final PagerAdapter adapter = mViewPager.getAdapter();
            final View.OnClickListener tabClickListener = new TabClickListener();
            for (int i = 0; i < adapter.getCount(); i++) {
                View tabView = null;
                TextView tabTitleView = null;
                if (mTabViewLayoutId != 0) {
                    // If there is a custom tab view layout id set, try and inflate it
                    tabView = LayoutInflater.from(getContext()).inflate(mTabViewLayoutId, mTabStrip,
                    tabTitleView = (TextView) tabView.findViewById(mTabViewTextViewId);
                if (tabView == null) {
                    tabView = createDefaultTabView(getContext());
                if (tabTitleView == null && TextView.class.isInstance(tabView)) {
                    tabTitleView = (TextView) tabView;
                if (mDistributeEvenly) {
                    LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) tabView.getLayoutParams();
                    lp.width = 0;
                    lp.weight = 1;
                String desc = mContentDescriptions.get(i, null);
                if (desc != null) {
                if (i == mViewPager.getCurrentItem()) {
        public void setContentDescription(int i, String desc) {
            mContentDescriptions.put(i, desc);
        protected void onAttachedToWindow() {
            if (mViewPager != null) {
                scrollToTab(mViewPager.getCurrentItem(), 0);
        private void scrollToTab(int tabIndex, int positionOffset) {
            final int tabStripChildCount = mTabStrip.getChildCount();
            if (tabStripChildCount == 0 || tabIndex < 0 || tabIndex >= tabStripChildCount) {
            View selectedChild = mTabStrip.getChildAt(tabIndex);
            if (selectedChild != null) {
                int targetScrollX = selectedChild.getLeft() + positionOffset;
                if (tabIndex > 0 || positionOffset > 0) {
                    // If we're not at the first child and are mid-scroll, make sure we obey the offset
                    targetScrollX -= mTitleOffset;
                scrollTo(targetScrollX, 0);
        private class InternalViewPagerListener implements ViewPager.OnPageChangeListener {
            private int mScrollState;
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
                int tabStripChildCount = mTabStrip.getChildCount();
                if ((tabStripChildCount == 0) || (position < 0) || (position >= tabStripChildCount)) {
                mTabStrip.onViewPagerPageChanged(position, positionOffset);
                View selectedTitle = mTabStrip.getChildAt(position);
                int extraOffset = (selectedTitle != null)
                        ? (int) (positionOffset * selectedTitle.getWidth())
                        : 0;
                scrollToTab(position, extraOffset);
                if (mViewPagerPageChangeListener != null) {
                    mViewPagerPageChangeListener.onPageScrolled(position, positionOffset,
            public void onPageScrollStateChanged(int state) {
                mScrollState = state;
                if (mViewPagerPageChangeListener != null) {
            public void onPageSelected(int position) {
                if (mScrollState == ViewPager.SCROLL_STATE_IDLE) {
                    mTabStrip.onViewPagerPageChanged(position, 0f);
                    scrollToTab(position, 0);
                for (int i = 0; i < mTabStrip.getChildCount(); i++) {
                    mTabStrip.getChildAt(i).setSelected(position == i);
                if (mViewPagerPageChangeListener != null) {
        private class TabClickListener implements View.OnClickListener {
            public void onClick(View v) {
                for (int i = 0; i < mTabStrip.getChildCount(); i++) {
                    if (v == mTabStrip.getChildAt(i)) {

    in class SlidingTabLayout method populateTabStrip() add

    LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
            0, LayoutParams.WRAP_CONTENT, 1f);

    Why wouldn’t you use the PagerSlidingTabStrip lib?

    With this lib, you only have to call setShouldExpand(true). If the total width of the tabs doesn’t exceed the screen’s width, the tabs container will be expanded to match the screen width.

    I really think you should use this lib, it’s pretty good and very easy to use.

     protected void onCreate(Bundle savedInstanceState)
            ViewPager viewPager = findViewById(, null);
            PagerSlidingTabStrip tabs = findViewById(, null);
            // ...
            // ...
    Android Babe is a Google Android Fan, All about Android Phones, Android Wear, Android Dev and Android Games Apps and so on.