Java tutorial
/* * Copyright (C) 2013 Andreas Stuetz <andreas.stuetz@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.bei.test.view.tab; import android.annotation.TargetApi; import android.content.Context; import android.content.res.ColorStateList; import android.content.res.TypedArray; import android.database.DataSetObserver; import android.graphics.Canvas; import android.graphics.Color; 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.util.Pair; 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.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewTreeObserver.OnGlobalLayoutListener; import android.widget.HorizontalScrollView; import android.widget.LinearLayout; import android.widget.TextView; import com.bei.test.R; public class PagerSlidingTabStrip extends HorizontalScrollView { public static final int DEF_VALUE_TAB_TEXT_ALPHA = 150; private static final int[] ANDROID_ATTRS = new int[] { android.R.attr.textColorPrimary, android.R.attr.padding, android.R.attr.paddingLeft, android.R.attr.paddingRight, }; //These indexes must be related with the ATTR array above private static final int TEXT_COLOR_PRIMARY = 0; private static final int PADDING_INDEX = 1; private static final int PADDING_LEFT_INDEX = 2; private static final int PADDING_RIGHT_INDEX = 3; private LinearLayout mTabsContainer; private LinearLayout.LayoutParams mTabLayoutParams; private final PagerAdapterObserver mAdapterObserver = new PagerAdapterObserver(); private final PageListener mPageListener = new PageListener(); private OnTabReselectedListener mTabReselectedListener = null; public OnPageChangeListener mDelegatePageListener; private ViewPager mPager; private int mTabCount; private int mCurrentPosition = 0; private float mCurrentPositionOffset = 0f; private Paint mRectPaint; private Paint mDividerPaint; private int mIndicatorColor; private int mIndicatorHeight = 2; private int mUnderlineHeight = 0; private int mUnderlineColor; private int mDividerWidth = 0; private int mDividerPadding = 0; private int mDividerColor; private int mTabPadding = 12; private int mTabNormalTextSize = 14; private int mTabSelectTextSize = 18; private ColorStateList mTabTextColor = null; private int mPaddingLeft = 0; private int mPaddingRight = 0; private boolean isExpandTabs = false; private boolean isCustomTabs; private boolean isPaddingMiddle = false; private boolean isTabTextAllCaps = true; private Typeface mTabTextTypeface = null; private int mTabTextTypefaceStyle = Typeface.BOLD; private int mScrollOffset; private int mLastScrollX = 0; private int mTabBackgroundResId = R.drawable.psts_background_tab; 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); mTabsContainer = new LinearLayout(context); mTabsContainer.setOrientation(LinearLayout.HORIZONTAL); addView(mTabsContainer); mRectPaint = new Paint(); mRectPaint.setAntiAlias(true); mRectPaint.setStyle(Style.FILL); DisplayMetrics dm = getResources().getDisplayMetrics(); mScrollOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mScrollOffset, dm); mIndicatorHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mIndicatorHeight, dm); mUnderlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mUnderlineHeight, dm); mDividerPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mDividerPadding, dm); mTabPadding = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mTabPadding, dm); mDividerWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, mDividerWidth, dm); mTabNormalTextSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, mTabNormalTextSize, dm); mTabSelectTextSize = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, mTabSelectTextSize, dm); mDividerPaint = new Paint(); mDividerPaint.setAntiAlias(true); mDividerPaint.setStrokeWidth(mDividerWidth); // get system attrs for container TypedArray a = context.obtainStyledAttributes(attrs, ANDROID_ATTRS); int textPrimaryColor = a.getColor(TEXT_COLOR_PRIMARY, getResources().getColor(android.R.color.black)); mUnderlineColor = textPrimaryColor; mDividerColor = textPrimaryColor; mIndicatorColor = textPrimaryColor; int padding = a.getDimensionPixelSize(PADDING_INDEX, 0); mPaddingLeft = padding > 0 ? padding : a.getDimensionPixelSize(PADDING_LEFT_INDEX, 0); mPaddingRight = padding > 0 ? padding : a.getDimensionPixelSize(PADDING_RIGHT_INDEX, 0); a.recycle(); String tabTextTypefaceName = "sans-serif"; // Use Roboto Medium as the default typeface from API 21 onwards if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { tabTextTypefaceName = "sans-serif-medium"; mTabTextTypefaceStyle = Typeface.NORMAL; } // get custom attrs for tabs and container a = context.obtainStyledAttributes(attrs, R.styleable.PagerSlidingTabStrip); mIndicatorColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsIndicatorColor, mIndicatorColor); mIndicatorHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsIndicatorHeight, mIndicatorHeight); mUnderlineColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsUnderlineColor, mUnderlineColor); mUnderlineHeight = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsUnderlineHeight, mUnderlineHeight); mDividerColor = a.getColor(R.styleable.PagerSlidingTabStrip_pstsDividerColor, mDividerColor); mDividerWidth = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsDividerWidth, mDividerWidth); mDividerPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsDividerPadding, mDividerPadding); isExpandTabs = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsShouldExpand, isExpandTabs); mScrollOffset = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsScrollOffset, mScrollOffset); isPaddingMiddle = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsPaddingMiddle, isPaddingMiddle); mTabPadding = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabPaddingLeftRight, mTabPadding); mTabBackgroundResId = a.getResourceId(R.styleable.PagerSlidingTabStrip_pstsTabBackground, mTabBackgroundResId); mTabNormalTextSize = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabNormalTextSize, mTabNormalTextSize); mTabSelectTextSize = a.getDimensionPixelSize(R.styleable.PagerSlidingTabStrip_pstsTabSelectTextSize, mTabSelectTextSize); mTabTextColor = a.hasValue(R.styleable.PagerSlidingTabStrip_pstsTabTextColor) ? a.getColorStateList(R.styleable.PagerSlidingTabStrip_pstsTabTextColor) : null; mTabTextTypefaceStyle = a.getInt(R.styleable.PagerSlidingTabStrip_pstsTabTextStyle, mTabTextTypefaceStyle); isTabTextAllCaps = a.getBoolean(R.styleable.PagerSlidingTabStrip_pstsTabTextAllCaps, isTabTextAllCaps); int tabTextAlpha = a.getInt(R.styleable.PagerSlidingTabStrip_pstsTabTextAlpha, DEF_VALUE_TAB_TEXT_ALPHA); String fontFamily = a.getString(R.styleable.PagerSlidingTabStrip_pstsTabTextFontFamily); a.recycle(); //Tab text color selector if (mTabTextColor == null) { mTabTextColor = createColorStateList(textPrimaryColor, textPrimaryColor, Color.argb(tabTextAlpha, Color.red(textPrimaryColor), Color.green(textPrimaryColor), Color.blue(textPrimaryColor))); } //Tab text typeface and style if (fontFamily != null) { tabTextTypefaceName = fontFamily; } mTabTextTypeface = Typeface.create(tabTextTypefaceName, mTabTextTypefaceStyle); //Bottom padding for the tabs container parent view to show indicator and underline setTabsContainerParentViewPaddings(); //Configure tab's container LayoutParams for either equal divided space or just wrap tabs mTabLayoutParams = isExpandTabs ? new LinearLayout.LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f) : new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.MATCH_PARENT); } private void setTabsContainerParentViewPaddings() { int bottomMargin = mIndicatorHeight >= mUnderlineHeight ? mIndicatorHeight : mUnderlineHeight; setPadding(getPaddingLeft(), getPaddingTop(), getPaddingRight(), bottomMargin); } public void setViewPager(ViewPager pager) { this.mPager = pager; if (pager.getAdapter() == null) { throw new IllegalStateException("ViewPager does not have adapter instance."); } isCustomTabs = pager.getAdapter() instanceof CustomTabProvider; pager.setOnPageChangeListener(mPageListener); pager.getAdapter().registerDataSetObserver(mAdapterObserver); mAdapterObserver.setAttached(true); notifyDataSetChanged(); } public void notifyDataSetChanged() { mTabsContainer.removeAllViews(); mTabCount = mPager.getAdapter().getCount(); View tabView; for (int i = 0; i < mTabCount; i++) { if (isCustomTabs) { tabView = ((CustomTabProvider) mPager.getAdapter()).getCustomTabView(this, i); } else { tabView = LayoutInflater.from(getContext()).inflate(R.layout.psts_tab, this, false); } CharSequence title = mPager.getAdapter().getPageTitle(i); addTab(i, title, tabView); } updateTabStyles(); } private void addTab(final int position, CharSequence title, View tabView) { TextView textView = (TextView) tabView.findViewById(R.id.psts_tab_title); if (textView != null) { if (title != null) textView.setText(title); } tabView.setFocusable(true); tabView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if (mPager.getCurrentItem() != position) { View tab = mTabsContainer.getChildAt(mPager.getCurrentItem()); unSelect(tab); mPager.setCurrentItem(position); } else if (mTabReselectedListener != null) { mTabReselectedListener.onTabReselected(position); } } }); mTabsContainer.addView(tabView, position, mTabLayoutParams); } private void updateTabStyles() { for (int i = 0; i < mTabCount; i++) { View v = mTabsContainer.getChildAt(i); v.setBackgroundResource(mTabBackgroundResId); v.setPadding(mTabPadding, v.getPaddingTop(), mTabPadding, v.getPaddingBottom()); TextView tab_title = (TextView) v.findViewById(R.id.psts_tab_title); if (tab_title != null) { tab_title.setTextColor(mTabTextColor); tab_title.setTypeface(mTabTextTypeface, mTabTextTypefaceStyle); // tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTabNormalTextSize); // setAllCaps() is only available from API 14, so the upper case is made manually if we are on a // pre-ICS-build if (isTabTextAllCaps) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { tab_title.setAllCaps(true); } else { tab_title.setText(tab_title.getText().toString() .toUpperCase(getResources().getConfiguration().locale)); } } } } } private void scrollToChild(int position, int offset) { if (mTabCount == 0) { return; } int newScrollX = mTabsContainer.getChildAt(position).getLeft() + offset; if (position > 0 || offset > 0) { //Half screen offset. //- Either tabs start at the middle of the view scrolling straight away //- Or tabs start at the begging (no padding) scrolling when indicator gets // to the middle of the view width newScrollX -= mScrollOffset; Pair<Float, Float> lines = getIndicatorCoordinates(); newScrollX += ((lines.second - lines.first) / 2); } if (newScrollX != mLastScrollX) { mLastScrollX = newScrollX; scrollTo(newScrollX, 0); } } private Pair<Float, Float> getIndicatorCoordinates() { // default: line below current tab View currentTab = mTabsContainer.getChildAt(mCurrentPosition); 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 (mCurrentPositionOffset > 0f && mCurrentPosition < mTabCount - 1) { View nextTab = mTabsContainer.getChildAt(mCurrentPosition + 1); final float nextTabLeft = nextTab.getLeft(); final float nextTabRight = nextTab.getRight(); lineLeft = (mCurrentPositionOffset * nextTabLeft + (1f - mCurrentPositionOffset) * lineLeft); lineRight = (mCurrentPositionOffset * nextTabRight + (1f - mCurrentPositionOffset) * lineRight); } return new Pair<Float, Float>(lineLeft, lineRight); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { if (isPaddingMiddle || mPaddingLeft > 0 || mPaddingRight > 0) { int width; if (isPaddingMiddle) { width = getWidth(); } else { // Account for manually set padding for offsetting tab start and end positions. width = getWidth() - mPaddingLeft - mPaddingRight; } //Make sure tabContainer is bigger than the HorizontalScrollView to be able to scroll mTabsContainer.setMinimumWidth(width); //Clipping padding to false to see the tabs while we pass them swiping setClipToPadding(false); } if (mTabsContainer.getChildCount() > 0) { mTabsContainer.getChildAt(0).getViewTreeObserver() .addOnGlobalLayoutListener(firstTabGlobalLayoutListener); } super.onLayout(changed, l, t, r, b); } private OnGlobalLayoutListener firstTabGlobalLayoutListener = new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { View view = mTabsContainer.getChildAt(0); if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) { removeGlobalLayoutListenerPreJB(); } else { removeGlobalLayoutListenerJB(); } if (isPaddingMiddle) { int mHalfWidthFirstTab = view.getWidth() / 2; mPaddingLeft = mPaddingRight = getWidth() / 2 - mHalfWidthFirstTab; } setPadding(mPaddingLeft, getPaddingTop(), mPaddingRight, getPaddingBottom()); if (mScrollOffset == 0) mScrollOffset = getWidth() / 2 - mPaddingLeft; mCurrentPosition = mPager.getCurrentItem(); mCurrentPositionOffset = 0f; scrollToChild(mCurrentPosition, 0); updateSelection(mCurrentPosition); } @SuppressWarnings("deprecation") private void removeGlobalLayoutListenerPreJB() { getViewTreeObserver().removeGlobalOnLayoutListener(this); } @TargetApi(Build.VERSION_CODES.JELLY_BEAN) private void removeGlobalLayoutListenerJB() { getViewTreeObserver().removeOnGlobalLayoutListener(this); } }; @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); if (isInEditMode() || mTabCount == 0) { return; } final int height = getHeight(); // draw divider if (mDividerWidth > 0) { mDividerPaint.setStrokeWidth(mDividerWidth); mDividerPaint.setColor(mDividerColor); for (int i = 0; i < mTabCount - 1; i++) { View tab = mTabsContainer.getChildAt(i); canvas.drawLine(tab.getRight(), mDividerPadding, tab.getRight(), height - mDividerPadding, mDividerPaint); } } // draw underline if (mUnderlineHeight > 0) { mRectPaint.setColor(mUnderlineColor); canvas.drawRect(mPaddingLeft, height - mUnderlineHeight, mTabsContainer.getWidth() + mPaddingRight, height, mRectPaint); } // draw indicator line if (mIndicatorHeight > 0) { mRectPaint.setColor(mIndicatorColor); Pair<Float, Float> lines = getIndicatorCoordinates(); canvas.drawRect(lines.first + mPaddingLeft, height - mIndicatorHeight, lines.second + mPaddingLeft, height, mRectPaint); } } public void setOnTabReselectedListener(OnTabReselectedListener tabReselectedListener) { this.mTabReselectedListener = tabReselectedListener; } public void setOnPageChangeListener(OnPageChangeListener listener) { this.mDelegatePageListener = listener; } private class PageListener implements OnPageChangeListener { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { mCurrentPosition = position; mCurrentPositionOffset = positionOffset; int offset = mTabCount > 0 ? (int) (positionOffset * mTabsContainer.getChildAt(position).getWidth()) : 0; scrollToChild(position, offset); invalidate(); if (mDelegatePageListener != null) { mDelegatePageListener.onPageScrolled(position, positionOffset, positionOffsetPixels); } } @Override public void onPageScrollStateChanged(int state) { if (state == ViewPager.SCROLL_STATE_IDLE) { scrollToChild(mPager.getCurrentItem(), 0); } //Full tabTextAlpha for current item View currentTab = mTabsContainer.getChildAt(mPager.getCurrentItem()); select(currentTab); //Half transparent for prev item if (mPager.getCurrentItem() - 1 >= 0) { View prevTab = mTabsContainer.getChildAt(mPager.getCurrentItem() - 1); unSelect(prevTab); } //Half transparent for next item if (mPager.getCurrentItem() + 1 <= mPager.getAdapter().getCount() - 1) { View nextTab = mTabsContainer.getChildAt(mPager.getCurrentItem() + 1); unSelect(nextTab); } if (mDelegatePageListener != null) { mDelegatePageListener.onPageScrollStateChanged(state); } } @Override public void onPageSelected(int position) { updateSelection(position); if (mDelegatePageListener != null) { mDelegatePageListener.onPageSelected(position); } } } private void updateSelection(int position) { for (int i = 0; i < mTabCount; ++i) { View tv = mTabsContainer.getChildAt(i); final boolean selected = i == position; if (selected) { select(tv); } else { unSelect(tv); } } } private void unSelect(View tab) { if (tab != null) { TextView tab_title = (TextView) tab.findViewById(R.id.psts_tab_title); if (tab_title != null) { tab_title.setSelected(false); tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTabNormalTextSize); } if (isCustomTabs) ((CustomTabProvider) mPager.getAdapter()).tabUnselected(tab); } } private void select(View tab) { if (tab != null) { TextView tab_title = (TextView) tab.findViewById(R.id.psts_tab_title); if (tab_title != null) { tab_title.setSelected(true); tab_title.setTextSize(TypedValue.COMPLEX_UNIT_PX, mTabSelectTextSize); } if (isCustomTabs) ((CustomTabProvider) mPager.getAdapter()).tabSelected(tab); } } private class PagerAdapterObserver extends DataSetObserver { private boolean attached = false; @Override public void onChanged() { notifyDataSetChanged(); } public void setAttached(boolean attached) { this.attached = attached; } public boolean isAttached() { return attached; } } @Override protected void onAttachedToWindow() { super.onAttachedToWindow(); if (mPager != null) { if (!mAdapterObserver.isAttached()) { mPager.getAdapter().registerDataSetObserver(mAdapterObserver); mAdapterObserver.setAttached(true); } } } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); if (mPager != null) { if (mAdapterObserver.isAttached()) { mPager.getAdapter().unregisterDataSetObserver(mAdapterObserver); mAdapterObserver.setAttached(false); } } } @Override public void onRestoreInstanceState(Parcelable state) { SavedState savedState = (SavedState) state; super.onRestoreInstanceState(savedState.getSuperState()); mCurrentPosition = savedState.currentPosition; if (mCurrentPosition != 0 && mTabsContainer.getChildCount() > 0) { unSelect(mTabsContainer.getChildAt(0)); select(mTabsContainer.getChildAt(mCurrentPosition)); } requestLayout(); } @Override public Parcelable onSaveInstanceState() { Parcelable superState = super.onSaveInstanceState(); SavedState savedState = new SavedState(superState); savedState.currentPosition = mCurrentPosition; 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 Creator<SavedState> CREATOR = new Creator<SavedState>() { @Override public SavedState createFromParcel(Parcel in) { return new SavedState(in); } @Override public SavedState[] newArray(int size) { return new SavedState[size]; } }; } public int getIndicatorColor() { return this.mIndicatorColor; } public int getIndicatorHeight() { return mIndicatorHeight; } public int getUnderlineColor() { return mUnderlineColor; } public int getDividerColor() { return mDividerColor; } public int getDividerWidth() { return mDividerWidth; } public int getUnderlineHeight() { return mUnderlineHeight; } public int getDividerPadding() { return mDividerPadding; } public int getScrollOffset() { return mScrollOffset; } public boolean getShouldExpand() { return isExpandTabs; } public int getTextSize() { return mTabNormalTextSize; } public boolean isTextAllCaps() { return isTabTextAllCaps; } public ColorStateList getTextColor() { return mTabTextColor; } public int getTabBackground() { return mTabBackgroundResId; } public int getTabPaddingLeftRight() { return mTabPadding; } public void setIndicatorColor(int indicatorColor) { this.mIndicatorColor = indicatorColor; invalidate(); } public void setIndicatorColorResource(int resId) { this.mIndicatorColor = getResources().getColor(resId); invalidate(); } public void setIndicatorHeight(int indicatorLineHeightPx) { this.mIndicatorHeight = indicatorLineHeightPx; invalidate(); } public void setUnderlineColor(int underlineColor) { this.mUnderlineColor = underlineColor; invalidate(); } public void setUnderlineColorResource(int resId) { this.mUnderlineColor = getResources().getColor(resId); invalidate(); } public void setDividerColor(int dividerColor) { this.mDividerColor = dividerColor; invalidate(); } public void setDividerColorResource(int resId) { this.mDividerColor = getResources().getColor(resId); invalidate(); } public void setDividerWidth(int dividerWidthPx) { this.mDividerWidth = dividerWidthPx; invalidate(); } public void setUnderlineHeight(int underlineHeightPx) { this.mUnderlineHeight = underlineHeightPx; invalidate(); } public void setDividerPadding(int dividerPaddingPx) { this.mDividerPadding = dividerPaddingPx; invalidate(); } public void setScrollOffset(int scrollOffsetPx) { this.mScrollOffset = scrollOffsetPx; invalidate(); } public void setShouldExpand(boolean shouldExpand) { this.isExpandTabs = shouldExpand; if (mPager != null) { requestLayout(); } } public void setAllCaps(boolean textAllCaps) { this.isTabTextAllCaps = textAllCaps; } public void setTextSize(int textSizePx) { this.mTabNormalTextSize = textSizePx; updateTabStyles(); } public void setTextColorResource(int resId) { setTextColor(getResources().getColor(resId)); } public void setTextColor(int textColor) { setTextColor(createColorStateList(textColor)); } public void setTextColorStateListResource(int resId) { setTextColor(getResources().getColorStateList(resId)); } public void setTextColor(ColorStateList colorStateList) { this.mTabTextColor = colorStateList; updateTabStyles(); } private ColorStateList createColorStateList(int color_state_default) { return new ColorStateList(new int[][] { new int[] {} //default }, new int[] { color_state_default //default }); } private ColorStateList createColorStateList(int color_state_pressed, int color_state_selected, int color_state_default) { return new ColorStateList(new int[][] { new int[] { android.R.attr.state_pressed }, //pressed new int[] { android.R.attr.state_selected }, // enabled new int[] {} //default }, new int[] { color_state_pressed, color_state_selected, color_state_default }); } public void setTypeface(Typeface typeface, int style) { this.mTabTextTypeface = typeface; this.mTabTextTypefaceStyle = style; updateTabStyles(); } public void setTabBackground(int resId) { this.mTabBackgroundResId = resId; } public void setTabPaddingLeftRight(int paddingPx) { this.mTabPadding = paddingPx; updateTabStyles(); } public interface CustomTabProvider { View getCustomTabView(ViewGroup parent, int position); void tabSelected(View tab); void tabUnselected(View tab); } public interface OnTabReselectedListener { void onTabReselected(int position); } }