I've integrated PagerSlidingTabStrips with Icons only. But I selector on icons are not working with PagerSlidingTabStrips.
xml
<PagerSlidingTabStrip android:id="@+id/pager_sliding_tab_strip" android:layout_width="fill_parent" android:layout_height="45dip" android:background="@color/white" app:pstsDividerColor="#FFFFA500" app:pstsIndicatorColor="#FFFFA500" app:pstsTabPaddingLeftRight="14dip" app:pstsUnderlineColor="#FFFFA500" />
Added implements IconTabProvider on my ViewPager which works perfectly.
public class ViewPagerAdapter extends FragmentPagerAdapter implements IconTabProvider { final int PAGE_COUNT = 3; private final int[] ICONS = { R.drawable.tab_icon_zname_contacts_selector, R.drawable.tab_icon_zname_friends_selector, R.drawable.tab_icon_zname_call_log_selector }; @Override public int getPageIconResId(int position) { return ICONS[position]; } }
iconSelector
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/tab_icon_zname_call_log_selected" android:state_selected="true"/> <item android:drawable="@drawable/tab_icon_zname_call_log" android:state_selected="false"/> </selector>
How to make icon selector work with PagerSlidingTabStrips? I wanted icon with Orange color when that tab is selected but it's returning grey one only no matter what.
I've found fix for Icon_Selector for PagerSlidingTabStrips within it's closed issues.
Modify PagerSlidingTabStrips.java and add following code
private int currentPageSelected = 0; //Fix : ICON SELECTOR
Append on NotifyDataSetChanged method inside OnGlobalLayoutListener
currentPosition = pager.getCurrentItem(); tabsContainer.getChildAt(currentPosition).setSelected(true); //ADDED THESE scrollToChild(currentPosition, 0);
Modified the onPageSelected():
@Override public void onPageSelected(int position) { tabsContainer.getChildAt(currentPageSelected).setSelected(false); currentPageSelected = position; tabsContainer.getChildAt(position).setSelected(true); if (delegatePageListener != null) { delegatePageListener.onPageSelected(position } }
IconSelector
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/tab_icon_zname_call_log_selected" android:state_selected="true"/> <item android:drawable="@drawable/tab_icon_zname_call_log_selected" android:state_pressed="true"/> <item android:drawable="@drawable/tab_icon_zname_call_log"/> </selector>
PagerSlidingTabStrips.java
import java.util.Locale; import android.annotation.SuppressLint; import android.content.Context; import android.content.res.TypedArray; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Paint.Style; import android.graphics.Typeface; import android.os.Build; import android.os.Parcel; import android.os.Parcelable; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.util.AttributeSet; import android.util.DisplayMetrics; import android.util.TypedValue; import android.view.Gravity; import android.view.View; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import android.widget.HorizontalScrollView; import android.widget.ImageButton; import android.widget.LinearLayout; import android.widget.TextView; import com.netdoers.zname.R; public class PagerSlidingTabStrip extends HorizontalScrollView { public interface IconTabProvider { public int getPageIconResId(int position); } // @formatter:off private static final int[] ATTRS = new int[] { android.R.attr.textSize, android.R.attr.textColor }; // @formatter:on private LinearLayout.LayoutParams defaultTabLayoutParams; private LinearLayout.LayoutParams expandedTabLayoutParams; private final PageListener pageListener = new PageListener(); public OnPageChangeListener delegatePageListener; private LinearLayout tabsContainer; private ViewPager pager; private int tabCount; private int currentPosition = 0; private float currentPositionOffset = 0f; private Paint rectPaint; private Paint dividerPaint; private int currentPageSelected = 0; //Fix : ICON SELECTOR private int indicatorColor = 0xFF666666; private int underlineColor = 0x1A000000; private int dividerColor = 0x1A000000; private boolean shouldExpand = false; private boolean textAllCaps = true; private int scrollOffset = 52; private int indicatorHeight = 8; private int underlineHeight = 2; private int dividerPadding = 12; private int tabPadding = 24; private int dividerWidth = 1; private int tabTextSize = 12; private int tabTextColor = 0xFF666666; private Typeface tabTypeface = null; private int tabTypefaceStyle = Typeface.BOLD; private int lastScrollX = 0; private int tabBackgroundResId = R.drawable.background_tab; private Locale locale; public PagerSlidingTabStrip(Context context) { this(context, null); } public PagerSlidingTabStrip(Context context, AttributeSet attrs) { this(context, attrs, 0); } public PagerSlidingTabStrip(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); setFillViewport(true); setWillNotDraw(false); tabsContainer = new LinearLayout(context); tabsContainer.setOrientation(LinearLayout.HORIZONTAL); tabsContainer.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); addView(tabsContainer); DisplayMetrics dm = getResources().getDisplayMetrics(); scrollOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, scrollOffset, dm); indicatorHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, indicatorHeight, dm); underlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, underlineHeight, dm); dividerPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dividerPadding, dm); tabPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, tabPadding, dm); dividerWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dividerWidth, dm); tabTextSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, tabTextSize, dm); // get system attrs (android:textSize and android:textColor) TypedArray a = context.obtainStyledAttributes(attrs, ATTRS); tabTextSize = a.getDimensionPixelSize(0, tabTextSize); tabTextColor = a.getColor(1, tabTextColor); a.recycle(); // get custom attrs a = context.obtainStyledAttributes(attrs, R.styleable.PagerSlidingTabStrip); indicatorColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsIndicatorColor, indicatorColor); underlineColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsUnderlineColor, underlineColor); dividerColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsDividerColor, dividerColor); indicatorHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsIndicatorHeight, indicatorHeight); underlineHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsUnderlineHeight, underlineHeight); dividerPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsDividerPadding, dividerPadding); tabPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabPaddingLeftRight, tabPadding); tabBackgroundResId = a.getResourceId(R.styleable.PagerSlidingTabStrip_pstsTabBackground, tabBackgroundResId); shouldExpand = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsShouldExpand, shouldExpand); scrollOffset = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsScrollOffset, scrollOffset); textAllCaps = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsTextAllCaps, textAllCaps); a.recycle(); rectPaint = new Paint(); rectPaint.setAntiAlias(true); rectPaint.setStyle(Style.FILL); dividerPaint = new Paint(); dividerPaint.setAntiAlias(true); dividerPaint.setStrokeWidth(dividerWidth); defaultTabLayoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT); expandedTabLayoutParams = new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f); if (locale == null) { locale = getResources().getConfiguration().locale; } } public void setViewPager(ViewPager pager) { this.pager = pager; if (pager.getAdapter() == null) { throw new IllegalStateException("ViewPager does not have adapter instance."); } pager.setOnPageChangeListener(pageListener); notifyDataSetChanged(); } public void setOnPageChangeListener(OnPageChangeListener listener) { this.delegatePageListener = listener; } public void notifyDataSetChanged() { tabsContainer.removeAllViews(); tabCount = pager.getAdapter().getCount(); for (int i = 0; i < tabCount; i++) { if (pager.getAdapter() instanceof IconTabProvider) { addIconTab(i, ((IconTabProvider) pager.getAdapter()).getPageIconResId(i)); } else { addTextTab(i, pager.getAdapter().getPageTitle(i).toString()); } } updateTabStyles(); getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() { @SuppressWarnings("deprecation") @SuppressLint("NewApi") @Override public void onGlobalLayout() { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) { getViewTreeObserver().removeGlobalOnLayoutListener(this); } else { getViewTreeObserver().removeOnGlobalLayoutListener(this); } currentPosition = pager.getCurrentItem(); tabsContainer.getChildAt(currentPosition).setSelected(true);//Fix : ICON SELECTOR scrollToChild(currentPosition, 0); } }); } private void addTextTab(final int position, String title) { TextView tab = new TextView(getContext()); tab.setText(title); tab.setGravity(Gravity.CENTER); tab.setSingleLine(); addTab(position, tab); } private void addIconTab(final int position, int resId) { ImageButton tab = new ImageButton(getContext()); tab.setImageResource(resId); addTab(position, tab); } private void addTab(final int position, View tab) { tab.setFocusable(true); tab.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { pager.setCurrentItem(position); } }); tab.setPadding(tabPadding, 0, tabPadding, 0); tabsContainer.addView(tab, position, shouldExpand ? expandedTabLayoutParams : defaultTabLayoutParams); } private void updateTabStyles() { for (int i = 0; i < tabCount; i++) { View v = tabsContainer.getChildAt(i); v.setBackgroundResource(tabBackgroundResId); if (v instanceof TextView) { TextView tab = (TextView) v; tab.setTextSize(TypedValue.COMPLEX_UNIT_PX, tabTextSize); tab.setTypeface(tabTypeface, tabTypefaceStyle); tab.setTextColor(tabTextColor); // setAllCaps() is only available from API 14, so the upper case is made manually if we are on a // pre-ICS-build if (textAllCaps) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { tab.setAllCaps(true); } else { tab.setText(tab.getText().toString().toUpperCase(locale)); } } } } } private void scrollToChild(int position, int offset) { if (tabCount == 0) { return; } int newScrollX = tabsContainer.getChildAt(position).getLeft() + offset; if (position > 0 || offset > 0) { newScrollX -= scrollOffset; } if (newScrollX != lastScrollX) { lastScrollX = newScrollX; scrollTo(newScrollX, 0); } } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (isInEditMode() || tabCount == 0) { return; } final int height = getHeight(); // draw indicator line rectPaint.setColor(indicatorColor); // default: line below current tab View currentTab = tabsContainer.getChildAt(currentPosition); float lineLeft = currentTab.getLeft(); float lineRight = currentTab.getRight(); // if there is an offset, start interpolating left and right coordinates between current and next tab if (currentPositionOffset > 0f && currentPosition < tabCount - 1) { View nextTab = tabsContainer.getChildAt(currentPosition + 1); final float nextTabLeft = nextTab.getLeft(); final float nextTabRight = nextTab.getRight(); lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft); lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight); } canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint); // draw underline rectPaint.setColor(underlineColor); canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint); // draw divider dividerPaint.setColor(dividerColor); for (int i = 0; i < tabCount - 1; i++) { View tab = tabsContainer.getChildAt(i); canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint); } } private class PageListener implements OnPageChangeListener { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { currentPosition = position; currentPositionOffset = positionOffset; scrollToChild(position, (int) (positionOffset * tabsContainer.getChildAt(position).getWidth())); invalidate(); if (delegatePageListener != null) { delegatePageListener.onPageScrolled(position, positionOffset, positionOffsetPixels); } } @Override public void onPageScrollStateChanged(int state) { if (state == ViewPager.SCROLL_STATE_IDLE) { scrollToChild(pager.getCurrentItem(), 0); } if (delegatePageListener != null) { delegatePageListener.onPageScrollStateChanged(state); } } @Override public void onPageSelected(int position) { /** * Fix : ICON SELECTOR */ tabsContainer.getChildAt(currentPageSelected).setSelected(false); currentPageSelected = position; tabsContainer.getChildAt(position).setSelected(true); /** * Fix : ICON SELECTOR */ if (delegatePageListener != null) { delegatePageListener.onPageSelected(position); } } } public void setIndicatorColor(int indicatorColor) { this.indicatorColor = indicatorColor; invalidate(); } public void setIndicatorColorResource(int resId) { this.indicatorColor = getResources().getColor(resId); invalidate(); } public int getIndicatorColor() { return this.indicatorColor; } public void setIndicatorHeight(int indicatorLineHeightPx) { this.indicatorHeight = indicatorLineHeightPx; invalidate(); } public int getIndicatorHeight() { return indicatorHeight; } public void setUnderlineColor(int underlineColor) { this.underlineColor = underlineColor; invalidate(); } public void setUnderlineColorResource(int resId) { this.underlineColor = getResources().getColor(resId); invalidate(); } public int getUnderlineColor() { return underlineColor; } public void setDividerColor(int dividerColor) { this.dividerColor = dividerColor; invalidate(); } public void setDividerColorResource(int resId) { this.dividerColor = getResources().getColor(resId); invalidate(); } public int getDividerColor() { return dividerColor; } public void setUnderlineHeight(int underlineHeightPx) { this.underlineHeight = underlineHeightPx; invalidate(); } public int getUnderlineHeight() { return underlineHeight; } public void setDividerPadding(int dividerPaddingPx) { this.dividerPadding = dividerPaddingPx; invalidate(); } public int getDividerPadding() { return dividerPadding; } public void setScrollOffset(int scrollOffsetPx) { this.scrollOffset = scrollOffsetPx; invalidate(); } public int getScrollOffset() { return scrollOffset; } public void setShouldExpand(boolean shouldExpand) { this.shouldExpand = shouldExpand; requestLayout(); } public boolean getShouldExpand() { return shouldExpand; } public boolean isTextAllCaps() { return textAllCaps; } public void setAllCaps(boolean textAllCaps) { this.textAllCaps = textAllCaps; } public void setTextSize(int textSizePx) { this.tabTextSize = textSizePx; updateTabStyles(); } public int getTextSize() { return tabTextSize; } public void setTextColor(int textColor) { this.tabTextColor = textColor; updateTabStyles(); } public void setTextColorResource(int resId) { this.tabTextColor = getResources().getColor(resId); updateTabStyles(); } public int getTextColor() { return tabTextColor; } public void setTypeface(Typeface typeface, int style) { this.tabTypeface = typeface; this.tabTypefaceStyle = style; updateTabStyles(); } public void setTabBackground(int resId) { this.tabBackgroundResId = resId; } public int getTabBackground() { return tabBackgroundResId; } public void setTabPaddingLeftRight(int paddingPx) { this.tabPadding = paddingPx; updateTabStyles(); } public int getTabPaddingLeftRight() { return tabPadding; } @Override public void onRestoreInstanceState(Parcelable state) { SavedState savedState = (SavedState) state; super.onRestoreInstanceState(savedState.getSuperState()); currentPosition = savedState.currentPosition; requestLayout(); } @Override public Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState savedState = new SavedState(superState); savedState.currentPosition = currentPosition; return savedState; } static class SavedState extends BaseSavedState { int currentPosition; public SavedState(Parcelable superState) { super(superState); } private SavedState(Parcel in) { super(in); currentPosition = in.readInt(); } @Override public void writeToParcel(Parcel dest, int flags) { super.writeToParcel(dest, flags); dest.writeInt(currentPosition); } public static final Parcelable.Creator<SavedState> CREATOR = new Parcelable.Creator<SavedState>() { @Override public SavedState createFromParcel(Parcel in) { return new SavedState(in); } @Override public SavedState[] newArray(int size) { return new SavedState[size]; } }; } }
ViewPagerAdapter.java which we need to supply to ViewPager
import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentPagerAdapter; import com.netdoers.zname.R; import com.netdoers.zname.utils.PagerSlidingTabStrip.IconTabProvider; /** * @author Vikalp Patel (vikalppatelce@yahoo.com) * @category Ui Helper * */ public class ViewPagerAdapter extends FragmentPagerAdapter /** * PAGERSLIDINGTABSTIPS */ implements IconTabProvider { // Declare the number of ViewPager pages // final int PAGE_COUNT = 5; final int PAGE_COUNT = 3; /** * PAGERSLIDINGTABSTRIPS */ private final int[] ICONS = { R.drawable.tab_icon_zname_contact_selector, R.drawable.tab_icon_zname_friends_selector, R.drawable.tab_icon_zname_call_log_selector }; /** * SLIDINGTABLAYOUT */ /*private int[] imageResId = { R.drawable.tab_icon_zname_contact_selector, R.drawable.tab_icon_zname_friends_selector, R.drawable.tab_icon_zname_call_log_selected }; @Override public CharSequence getPageTitle(int position) { Drawable image = Zname.getApplication().getApplicationContext().getResources().getDrawable(imageResId[position]); image.setBounds(0, 0, image.getIntrinsicWidth(), image.getIntrinsicHeight()); SpannableString sb = new SpannableString(" "); ImageSpan imageSpan = new ImageSpan(image, ImageSpan.ALIGN_BOTTOM); sb.setSpan(imageSpan, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); return sb; }*/ /** * SLIDINGTABLAYOUT */ /** * @param fm */ public ViewPagerAdapter(FragmentManager fm) { super(fm); } /* (non-Javadoc) * @see android.support.v4.app.FragmentPagerAdapter#getItem(int) */ @Override public Fragment getItem(int item) { switch (item) { // Open HomeFragment.java case 0: ContactsFragment homeFragment = new ContactsFragment(); return homeFragment; // Open PlaceOrderFragment.java case 1: GroupsFragment groupsFragment = new GroupsFragment(); return groupsFragment; case 2: CallLogsFragment callLogsFragment = new CallLogsFragment(); return callLogsFragment; } return null; } /* (non-Javadoc) * @see android.support.v4.view.PagerAdapter#getCount() */ @Override public int getCount() { // TODO Auto-generated method stub return PAGE_COUNT; } /** * PAGERSLIDINGTABSTRIPS */ @Override public int getPageIconResId(int position) { // TODO Auto-generated method stub return ICONS[position]; } }
My hard way to do that...
// Give the PagerSlidingTabStrip the ViewPager tabsStrip = (PagerSlidingTabStrip) findViewById(R.id.tabs); // Attach the view pager to the tab strip tabsStrip.setViewPager(mViewPager); Field field = null; try { field = PagerSlidingTabStrip.class.getDeclaredField("tabsContainer"); field.setAccessible(true); LinearLayout tabsContainer = (LinearLayout) field.get(tabsStrip); tabsContainer.getChildAt(0).setSelected(true); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } tabsStrip.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { private int currentPageSelected = 0; @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { Log.v("onPageSelected", tabsStrip.getClass().toString()); Field field = null; try { field = PagerSlidingTabStrip.class.getDeclaredField("tabsContainer"); field.setAccessible(true); LinearLayout tabsContainer = (LinearLayout) field.get(tabsStrip); tabsContainer.getChildAt(currentPageSelected).setSelected(false); currentPageSelected = position; tabsContainer.getChildAt(position).setSelected(true); } catch (NoSuchFieldException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } } @Override public void onPageScrollStateChanged(int state) { } });
Just add app:pstsTabSwitch="true" to PagerSlidingTabStrip:
<com.astuetz.PagerSlidingTabStrip android:id="@+id/tabs" app:pstsShouldExpand="true" android:layout_width="150dp" android:layout_height="match_parent" android:textSize="28sp" app:pstsIndicatorColor="#2F041F" app:pstsIndicatorHeight="2dp" app:pstsTabPaddingLeftRight="14dp" app:pstsTabSwitch="true"/>
My adapter:
SampleFragmentPagerAdapter extends FragmentPagerAdapter implements PagerSlidingTabStrip.IconTabProvider { private int TAB_ICONS[] = {R.drawable.io_logo, R.drawable.ic_chat_tab_unactive}; private final int[] SWITCH_ICONS = { R.drawable.tab_one, R.drawable.tab_two}; public SampleFragmentPagerAdapter(FragmentManager fm) { super(fm); } @Override public int getCount() { return TAB_ICONS.length; } @Override public Fragment getItem(int position) { if(position == 0){ return new SwipeFragment(); } else { return new ConversationsFragment(); } } @Override public int getPageIconResId(int position) { return SWITCH_ICONS[position]; }
}
My selector
<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_checked="true" android:drawable="@drawable/io_title" /> <item android:state_pressed="true" android:drawable="@drawable/io_logo"/> <item android:state_selected="true" android:drawable="@drawable/io_logo"/> <item android:drawable="@drawable/io_title" /> </selector>
