———-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;
}
}
}版权声明：本文为博主原创文章，未经博主允许不得转载。
时间： 2024-10-20 06:40:59