ViewPager实现页卡的3种方法（谷歌组件）
来源：互联网 发布：蓝牙测距编程 编辑：程序博客网 时间：2024/05/18 03:24
———-方法一：———-
效果图：
需要的组件：
ViewPager+PagerTabStrip
布局文件代码：
<!--xmlns:android_custom="http://schemas.android.com/apk/res/com.pengkv.bigo"--><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center" > <android.support.v4.view.ViewPager android:id="@+id/vp_view" android:layout_width="match_parent" android:layout_height="match_parent"> <android.support.v4.view.PagerTabStrip android:id="@+id/pts_view" android:layout_width="match_parent" android:layout_height="wrap_content"> </android.support.v4.view.PagerTabStrip> </android.support.v4.view.ViewPager></RelativeLayout>页面代码：
package com.pengkv.bigo;import android.app.Activity;import android.graphics.Color;import android.os.Bundle;import android.support.v4.view.PagerAdapter;import android.support.v4.view.PagerTabStrip;import android.support.v4.view.ViewPager;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import java.util.ArrayList;import java.util.List;/** * Created by peng on 2015/6/10. */public class ThreeActivity extends Activity { private ViewPager mViewPager; private PagerTabStrip mTabStrip;//一个viewpager的指示器，效果就是一个横的粗的下划线 private LayoutInflater mInflater; private List<String> mTitleList = new ArrayList<>();//页卡标题集合 private View view1, view2, view3, view4, view5;//页卡视图 private List<View> mViewList = new ArrayList<>();//页卡视图集合 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_three); mViewPager = (ViewPager) findViewById(R.id.vp_view); //对分页条进行设置 mTabStrip = (PagerTabStrip) findViewById(R.id.pts_view); mTabStrip.setDrawFullUnderline(true); //设置Tab是否显示下划线 mTabStrip.setTabIndicatorColor(Color.MAGENTA); //设置Tab选中时的颜色 mTabStrip.setBackgroundColor(Color.DKGRAY); //设置Tab背景色 mTabStrip.setTextColor(Color.WHITE);//设置字体颜色 mInflater = LayoutInflater.from(this); view1 = mInflater.inflate(R.layout.activity_main, null); view2 = mInflater.inflate(R.layout.activity_main, null); view3 = mInflater.inflate(R.layout.activity_main, null); view4 = mInflater.inflate(R.layout.activity_main, null); view5 = mInflater.inflate(R.layout.activity_main, null); //添加页卡视图 mViewList.add(view1); mViewList.add(view2); mViewList.add(view3); mViewList.add(view4); mViewList.add(view5); //添加页卡标题 mTitleList.add("No:1"); mTitleList.add("No:2"); mTitleList.add("No:3"); mTitleList.add("No:4"); mTitleList.add("No:5"); mViewPager.setAdapter(new MyPagerAdapter(mViewList)); } //ViewPager适配器 class MyPagerAdapter extends PagerAdapter { private List<View> mViewList; public MyPagerAdapter(List<View> mViewList) { this.mViewList = mViewList; } @Override public int getCount() { return mViewList.size();//页卡数 } @Override public boolean isViewFromObject(View view, Object object) { return view == object;//官方推荐写法 } @Override public Object instantiateItem(ViewGroup container, int position) { container.addView(mViewList.get(position));//添加页卡 return mViewList.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView(mViewList.get(position));//删除页卡 } @Override public CharSequence getPageTitle(int position) { return mTitleList.get(position);//页卡标题 } }}———-方法二———-：
效果图：
需要的组件：
ViewPager+SlidingTabLayout+SlidingTabStrip（源码见附录）
布局代码：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center"> <com.pengkv.bigo.SlidingTabLayout android:id="@+id/stl_square" android:layout_width="match_parent" android:layout_height="wrap_content"/> <android.support.v4.view.ViewPager android:id="@+id/vp_view" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_below="@+id/stl_square"> </android.support.v4.view.ViewPager></RelativeLayout>标题的布局代码：
<TextView android:id="@+id/tv_text" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="0dp"//宽度为0，配合权重 android:layout_height="wrap_content" android:layout_weight="1"//这样可以使全屏显示 android:gravity="center" android:paddingBottom="16dp" android:paddingTop="16dp" android:textColor="@color/primary" android:textSize="20dp"/>页面代码：
public class FourActivity extends Activity { private ViewPager mViewPager; private SlidingTabLayout mSlidingTabLayout; private LayoutInflater mInflater; private List<String> mTitleList = new ArrayList<>();//页卡标题集合 private View view1, view2, view3, view4, view5;//页卡视图 private List<View> mViewList = new ArrayList<>();//页卡视图集合 @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_four); mViewPager = (ViewPager) findViewById(R.id.vp_view); mSlidingTabLayout = (SlidingTabLayout) findViewById(R.id.stl_square); mInflater = LayoutInflater.from(this); view1 = mInflater.inflate(R.layout.activity_main, null); view2 = mInflater.inflate(R.layout.activity_main, null); view3 = mInflater.inflate(R.layout.activity_main, null); view4 = mInflater.inflate(R.layout.activity_main, null); view5 = mInflater.inflate(R.layout.activity_main, null); //添加页卡视图 mViewList.add(view1); mViewList.add(view2); mViewList.add(view3); mViewList.add(view4); mViewList.add(view5); //添加页卡标题 mTitleList.add("No:1"); mTitleList.add("No:2"); mTitleList.add("No:3"); mTitleList.add("No:4"); mTitleList.add("No:5"); mViewPager.setAdapter(new MyPagerAdapter(mViewList)); // 定义 SlidingTabLayout mSlidingTabLayout.setDividerColors(getResources().getColor(R.color.white)); mSlidingTabLayout.setSelectedIndicatorColors(getResources().getColor(R.color.primary)); mSlidingTabLayout.setBackgroundColor(getResources().getColor(R.color.white)); mSlidingTabLayout.setCustomTabView(R.layout.view_tab, R.id.tv_text); mSlidingTabLayout.setViewPager(mViewPager); // 加载ViewPager } //ViewPager适配器 class MyPagerAdapter extends PagerAdapter { private List<View> mViewList; public MyPagerAdapter(List<View> mViewList) { this.mViewList = mViewList; } @Override public int getCount() { return mViewList.size();//页卡数 } @Override public boolean isViewFromObject(View view, Object object) { return view == object;//官方推荐写法 } @Override public Object instantiateItem(ViewGroup container, int position) { container.addView(mViewList.get(position));//添加页卡 return mViewList.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView(mViewList.get(position));//删除页卡 } @Override public CharSequence getPageTitle(int position) { return mTitleList.get(position);//页卡标题 } }}附录：（来自官网，直接拷到工程目录下）
/** * 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 android.app.Activity} or {@link android.support.v4.app.Fragment} 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...)} and {@link #setDividerColors(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); /** * @return return the color of the divider drawn to the right of {@code position}. */ int getDividerColor(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 = 12; private int mTitleOffset; private int mTabViewLayoutId; private int mTabViewTextViewId; private ViewPager mViewPager; 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 setHorizontalScrollBarEnabled(false); // Make sure that the Tab Strips fills this View setFillViewport(true); 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. * <p/> * If you only require simple custmisation then you can use * {@link #setSelectedIndicatorColors(int...)} and {@link #setDividerColors(int...)} to achieve * similar effects. */ public void setCustomTabColorizer(TabColorizer tabColorizer) { mTabStrip.setCustomTabColorizer(tabColorizer); } /** * 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) { mTabStrip.setSelectedIndicatorColors(colors); } /** * Sets the colors to be used for tab dividers. These colors are treated as a circular array. * Providing one color will mean that all tabs are indicated with the same color. */ public void setDividerColors(int... colors) { mTabStrip.setDividerColors(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) { mTabStrip.removeAllViews(); mViewPager = viewPager; if (viewPager != null) { viewPager.setOnPageChangeListener(new InternalViewPagerListener()); populateTabStrip(); } } /** * 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.setGravity(Gravity.CENTER); textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, TAB_VIEW_TEXT_SIZE_SP); textView.setTypeface(Typeface.DEFAULT_BOLD); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { // If we're running on Honeycomb or newer, then we can use the Theme's // selectableItemBackground to ensure that the View has a pressed state TypedValue outValue = new TypedValue(); getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, outValue, true); textView.setBackgroundResource(outValue.resourceId); } if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { // If we're running on ICS or newer, enable all-caps to match the Action Bar tab style textView.setAllCaps(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, false); tabTitleView = (TextView) tabView.findViewById(mTabViewTextViewId); } if (tabView == null) { tabView = createDefaultTabView(getContext()); } if (tabTitleView == null && TextView.class.isInstance(tabView)) { tabTitleView = (TextView) tabView; } tabTitleView.setText(adapter.getPageTitle(i)); tabView.setOnClickListener(tabClickListener); mTabStrip.addView(tabView); } } @Override protected void onAttachedToWindow() { super.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) { return; } 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; @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { int tabStripChildCount = mTabStrip.getChildCount(); if ((tabStripChildCount == 0) || (position < 0) || (position >= tabStripChildCount)) { return; } 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, positionOffsetPixels); } } @Override public void onPageScrollStateChanged(int state) { mScrollState = state; if (mViewPagerPageChangeListener != null) { mViewPagerPageChangeListener.onPageScrollStateChanged(state); } } @Override public void onPageSelected(int position) { if (mScrollState == ViewPager.SCROLL_STATE_IDLE) { mTabStrip.onViewPagerPageChanged(position, 0f); scrollToTab(position, 0); } if (mViewPagerPageChangeListener != null) { mViewPagerPageChangeListener.onPageSelected(position); } } } private class TabClickListener implements View.OnClickListener { @Override public void onClick(View v) { for (int i = 0; i < mTabStrip.getChildCount(); i++) { if (v == mTabStrip.getChildAt(i)) { mViewPager.setCurrentItem(i); return; } } } }}class SlidingTabStrip extends LinearLayout { private static final int DEFAULT_BOTTOM_BORDER_THICKNESS_DIPS = 2; private static final byte DEFAULT_BOTTOM_BORDER_COLOR_ALPHA = 0x26; private static final int SELECTED_INDICATOR_THICKNESS_DIPS = 8; private static final int DEFAULT_SELECTED_INDICATOR_COLOR = 0xFF33B5E5; private static final int DEFAULT_DIVIDER_THICKNESS_DIPS = 1; private static final byte DEFAULT_DIVIDER_COLOR_ALPHA = 0x20; private static final float DEFAULT_DIVIDER_HEIGHT = 0.5f; private final int mBottomBorderThickness; private final Paint mBottomBorderPaint; private final int mSelectedIndicatorThickness; private final Paint mSelectedIndicatorPaint; private final int mDefaultBottomBorderColor; private final Paint mDividerPaint; private final float mDividerHeight; private int mSelectedPosition; private float mSelectionOffset; private SlidingTabLayout.TabColorizer mCustomTabColorizer; private final SimpleTabColorizer mDefaultTabColorizer; SlidingTabStrip(Context context) { this(context, null); } SlidingTabStrip(Context context, AttributeSet attrs) { super(context, attrs); setWillNotDraw(false); final float density = getResources().getDisplayMetrics().density; TypedValue outValue = new TypedValue(); context.getTheme().resolveAttribute(R.attr.colorForeground, outValue, true); final int themeForegroundColor = outValue.data; mDefaultBottomBorderColor = setColorAlpha(themeForegroundColor, DEFAULT_BOTTOM_BORDER_COLOR_ALPHA); mDefaultTabColorizer = new SimpleTabColorizer(); mDefaultTabColorizer.setIndicatorColors(DEFAULT_SELECTED_INDICATOR_COLOR); mDefaultTabColorizer.setDividerColors(setColorAlpha(themeForegroundColor, DEFAULT_DIVIDER_COLOR_ALPHA)); mBottomBorderThickness = (int) (DEFAULT_BOTTOM_BORDER_THICKNESS_DIPS * density); mBottomBorderPaint = new Paint(); mBottomBorderPaint.setColor(mDefaultBottomBorderColor); mSelectedIndicatorThickness = (int) (SELECTED_INDICATOR_THICKNESS_DIPS * density); mSelectedIndicatorPaint = new Paint(); mDividerHeight = DEFAULT_DIVIDER_HEIGHT; mDividerPaint = new Paint(); mDividerPaint.setStrokeWidth((int) (DEFAULT_DIVIDER_THICKNESS_DIPS * density)); } void setCustomTabColorizer(SlidingTabLayout.TabColorizer customTabColorizer) { mCustomTabColorizer = customTabColorizer; invalidate(); } void setSelectedIndicatorColors(int... colors) { // Make sure that the custom colorizer is removed mCustomTabColorizer = null; mDefaultTabColorizer.setIndicatorColors(colors); invalidate(); } void setDividerColors(int... colors) { // Make sure that the custom colorizer is removed mCustomTabColorizer = null; mDefaultTabColorizer.setDividerColors(colors); invalidate(); } void onViewPagerPageChanged(int position, float positionOffset) { mSelectedPosition = position; mSelectionOffset = positionOffset; invalidate(); } @Override protected void onDraw(Canvas canvas) { final int height = getHeight(); final int childCount = getChildCount(); final int dividerHeightPx = (int) (Math.min(Math.max(0f, mDividerHeight), 1f) * height); final SlidingTabLayout.TabColorizer tabColorizer = mCustomTabColorizer != null ? mCustomTabColorizer : mDefaultTabColorizer; // Thick colored underline below the current selection if (childCount > 0) { View selectedTitle = getChildAt(mSelectedPosition); int left = selectedTitle.getLeft(); int right = selectedTitle.getRight(); int color = tabColorizer.getIndicatorColor(mSelectedPosition); if (mSelectionOffset > 0f && mSelectedPosition < (getChildCount() - 1)) { int nextColor = tabColorizer.getIndicatorColor(mSelectedPosition + 1); if (color != nextColor) { color = blendColors(nextColor, color, mSelectionOffset); } // Draw the selection partway between the tabs View nextTitle = getChildAt(mSelectedPosition + 1); left = (int) (mSelectionOffset * nextTitle.getLeft() + (1.0f - mSelectionOffset) * left); right = (int) (mSelectionOffset * nextTitle.getRight() + (1.0f - mSelectionOffset) * right); } mSelectedIndicatorPaint.setColor(color); canvas.drawRect(left, height - mSelectedIndicatorThickness, right, height, mSelectedIndicatorPaint); } // Thin underline along the entire bottom edge canvas.drawRect(0, height - mBottomBorderThickness, getWidth(), height, mBottomBorderPaint); // Vertical separators between the titles int separatorTop = (height - dividerHeightPx) / 2; for (int i = 0; i < childCount - 1; i++) { View child = getChildAt(i); mDividerPaint.setColor(tabColorizer.getDividerColor(i)); canvas.drawLine(child.getRight(), separatorTop, child.getRight(), separatorTop + dividerHeightPx, mDividerPaint); } } /** * Set the alpha value of the {@code color} to be the given {@code alpha} value. */ private static int setColorAlpha(int color, byte alpha) { return Color.argb(alpha, Color.red(color), Color.green(color), Color.blue(color)); } /** * Blend {@code color1} and {@code color2} using the given ratio. * * @param ratio of which to blend. 1.0 will return {@code color1}, 0.5 will give an even blend, * 0.0 will return {@code color2}. */ private static int blendColors(int color1, int color2, float ratio) { final float inverseRation = 1f - ratio; float r = (Color.red(color1) * ratio) + (Color.red(color2) * inverseRation); float g = (Color.green(color1) * ratio) + (Color.green(color2) * inverseRation); float b = (Color.blue(color1) * ratio) + (Color.blue(color2) * inverseRation); return Color.rgb((int) r, (int) g, (int) b); } private static class SimpleTabColorizer implements SlidingTabLayout.TabColorizer { private int[] mIndicatorColors; private int[] mDividerColors; @Override public final int getIndicatorColor(int position) { return mIndicatorColors[position % mIndicatorColors.length]; } @Override public final int getDividerColor(int position) { return mDividerColors[position % mDividerColors.length]; } void setIndicatorColors(int... colors) { mIndicatorColors = colors; } void setDividerColors(int... colors) { mDividerColors = colors; } }}———-方法三：———-
见ViewPager实现页卡的最新方法–简洁的TabLayout（谷歌支持包）
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- ViewPager实现页卡的3种方法（谷歌组件）
- ViewPager实现页卡的最新方法--简洁的TabLayout（谷歌支持包）
- ViewPager实现页卡的最新方法--简洁的TabLayout（谷歌支持包）
- ViewPager实现页卡的最新方法--简洁的TabLayout（谷歌支持包）
- ViewPager实现页卡的最新方法--简洁的TabLayout（谷歌支持包）
- ViewPager实现页卡的最新方法--简洁的TabLayout（谷歌支持包）
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