自android 5.0发布以来，谷歌有发布的design包下的tablayout，但是需求的不同，有的时候，并不适合用这个，所以自己就自定义。
这个可以添加标题下的导航条也可不添加，可以设置根据标题文字的大小来调节该导航条的宽度。效果图所示。
这是CustomTablayout。自己通过继承HorizontalScrollView 来实现定义Tablayout
package com.demo.fuhao.customtablayout;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Handler;
import android.os.Message;
import android.support.v4.view.ViewPager;
import android.text.TextPaint;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.WindowManager;
import android.widget.HorizontalScrollView;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
/**
* Created by fuhao on 2017/1/10.
* 当设置indicator的长度为0时，默认自动根据标题的长度来设置indicator的长度，如果想取消indicator，可以设置。
* 目前，只能添加文字，不能添加图片。
*/
public class CustomTablayout extends HorizontalScrollView {
private static final String TAG="CustomTablayout";
/**
* tab容器
*/
private TabLayout mTabLayout;
/**
* 正常字体颜色
*/
private int TEXTNORMALCOLOR;
/**
* 选中字体颜色
*/
private int TEXTSELECTEDCOLOR;
/**
* 正常字体大小
*/
private float TEXTNORMALSIZE;
/**
* 选中字体大小
*/
private float TEXTSELECTEDSIZE;
/**
* 背景颜色
*/
private int BACKGROUNDCOLOR;
/**
* 指示器颜色
*/
private int INDICATORCOLOR;
/**
* 指示器宽度(attr)
*/
private float INDICATORWIDTH;
/**
* 指示器高度(attr)
*/
private float INDICATORHEIGHT;
/**
* 是否添加指示器(attr)标题下的线条
*/
private boolean ADDFORINDICATOR;
/**
* 是否添平均分配指示器(attr)标题下的线条
*/
private boolean AVERAGEFORINDICATOR;
/**
* title内容
*/
private List<String> mTabTitles;
/**
* 标题宽度
*/
private int mTitleWidth;
/**
* 指示器宽度
*/
private int mIndicatorWidth;
List<Integer> integerList = new ArrayList<Integer>();
/**
* 指示器高度(dp)
*/
private int mIndicatorHeight;
/**
* 默认的Tab数量
*/
private static int COUNT_DEFAULT_TAB = 4;
/**
* 默认最大Tab可见数量
*/
private static final int COUNT_DEFAULT_MAX_TAB = 6;
/**
* tab数量
*/
private int mTabVisibleCount = COUNT_DEFAULT_TAB;
/**
* 初始时，指示器的偏移量
*/
private int mInitTranslationX;
/**
* 滑动时指示器的偏移量
*/
private float mTranslationX;
/**
* 指示器的宽度为单个Tab的1/3
*/
private static float RADIO_TRIANGEL = 1.0f / 3;
/**
* ViewPager
*/
private ViewPager mViewPager;
/**
* Tab是否被点击
*/
private boolean isClick;
public CustomTablayout(Context context) {
this(context, null);
}
public CustomTablayout(Context context, AttributeSet attrs) {
super(context, attrs, 0);
//读取xml中
if (attrs != null) {
TypedArray typedArray = context.obtainStyledAttributes (attrs,R.styleable.CustomTablayout);
TEXTNORMALCOLOR = typedArray.getColor (R.styleable.CustomTablayout_textNormalColor, 0x80FFFFFF);
TEXTSELECTEDCOLOR = typedArray.getColor (R.styleable.CustomTablayout_textSelectedColor, 0xFFFFFFFF);
TEXTNORMALSIZE = typedArray.getDimension (R.styleable.CustomTablayout_textNormalSize, 13);
TEXTSELECTEDSIZE = typedArray.getDimension (R.styleable.CustomTablayout_textSelectedSize, 15);
BACKGROUNDCOLOR = typedArray.getColor (R.styleable.CustomTablayout_backGroundColor, 0xFF242425);
INDICATORCOLOR = typedArray.getColor (R.styleable.CustomTablayout_indicatorColor, 0xFFFFFFFF);
INDICATORWIDTH = typedArray.getDimension (R.styleable.CustomTablayout_indicatorWidth, 0);
INDICATORHEIGHT = typedArray.getDimension (R.styleable.CustomTablayout_indicatorHeight, 3);
ADDFORINDICATOR = typedArray.getBoolean (R.styleable.CustomTablayout_addforindicator, true);
AVERAGEFORINDICATOR=typedArray.getBoolean(R.styleable.CustomTablayout_averageforindicator, false);
typedArray.recycle();
} else {
TEXTNORMALCOLOR = Color.parseColor("#80FFFFFF");
TEXTSELECTEDCOLOR = Color.parseColor("#FFFFFF");
TEXTNORMALSIZE = 13;
TEXTSELECTEDSIZE = 15;
BACKGROUNDCOLOR = Color.parseColor("#242425");
INDICATORCOLOR = Color.parseColor("#FFFFFF");
INDICATORWIDTH = 0;
INDICATORHEIGHT = 3;
ADDFORINDICATOR = true;
AVERAGEFORINDICATOR=false;
}
Log.i("textsize", "TEXTNORMALSIZE:" + INDICATORWIDTH + " TEXTSELECTEDSIZE:" + INDICATORHEIGHT);
//隐藏滚动条
setHorizontalScrollBarEnabled(false);
//添加tab容器
mTabLayout = new TabLayout(context);
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
mTabLayout.setLayoutParams(params);
addView(mTabLayout);
mIndicatorHeight = (int) INDICATORHEIGHT;
//初始化title宽度
mTitleWidth = getScreenWidth() / mTabVisibleCount;
}
public CustomTablayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
//读取xml中
if (attrs != null) {
TypedArray typedArray = context.obtainStyledAttributes (attrs, R.styleable.CustomTablayout);
TEXTNORMALCOLOR = typedArray.getColor (R.styleable.CustomTablayout_textNormalColor, 0x80FFFFFF);
TEXTSELECTEDCOLOR = typedArray.getColor (R.styleable.CustomTablayout_textSelectedColor, 0xFFFFFFFF);
TEXTNORMALSIZE = typedArray.getDimension (R.styleable.CustomTablayout_textNormalSize, 13);
TEXTSELECTEDSIZE = typedArray.getDimension (R.styleable.CustomTablayout_textSelectedSize, 15);
BACKGROUNDCOLOR = typedArray.getColor (R.styleable.CustomTablayout_backGroundColor, 0xFF242425);
INDICATORCOLOR = typedArray.getColor (R.styleable.CustomTablayout_indicatorColor, 0xFFFFFFFF);
INDICATORWIDTH = typedArray.getDimension (R.styleable.CustomTablayout_indicatorWidth, 0);
INDICATORHEIGHT = typedArray.getDimension (R.styleable.CustomTablayout_indicatorHeight, 3);
ADDFORINDICATOR = typedArray.getBoolean (R.styleable.CustomTablayout_addforindicator, true);
typedArray.recycle();
} else {
TEXTNORMALCOLOR = Color.parseColor("#80FFFFFF");
TEXTSELECTEDCOLOR = Color.parseColor("#FFFFFF");
TEXTNORMALSIZE = 13/2;
TEXTSELECTEDSIZE = 15/2;
BACKGROUNDCOLOR = Color.parseColor("#242425");
INDICATORCOLOR = Color.parseColor("#FFFFFF");
INDICATORWIDTH = 0;
INDICATORHEIGHT = 3;
ADDFORINDICATOR = true;
}
Log.i("textsize", "TEXTNORMALSIZE:" + TEXTNORMALSIZE + " TEXTSELECTEDSIZE:" + TEXTSELECTEDSIZE);
//隐藏滚动条
setHorizontalScrollBarEnabled(false);
//添加tab容器
mTabLayout = new TabLayout(context);
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
mTabLayout.setLayoutParams(params);
addView(mTabLayout);
mIndicatorHeight = (int) INDICATORHEIGHT;
//初始化title宽度
mTitleWidth = getScreenWidth() / mTabVisibleCount;
}
/**
* 固定位置填充标题
* @param datas
* @param selected_position
*/
public void setTitles(List<String> datas, int selected_position) {
this.mTabTitles = datas;
// 如果传入的list有值，则移除布局文件中设置的view
if (datas != null && datas.size() > 0) {
int size = datas.size();
if (size <= selected_position) {
selected_position = 0;
}
mTabLayout.removeAllViews();
this.mTabTitles = datas;
mTabVisibleCount = Math.min(size, COUNT_DEFAULT_MAX_TAB);
mTitleWidth = getScreenWidth() / mTabVisibleCount;
for (String title : mTabTitles) {
// 添加view
mTabLayout.addView(getTitleView(title));
}
if (AVERAGEFORINDICATOR){
mIndicatorWidth=mTitleWidth;
}else {
if (ADDFORINDICATOR) {
if (INDICATORWIDTH > 0) {
mIndicatorWidth = Math.min(mTitleWidth, (int) INDICATORWIDTH);
} else {
mIndicatorWidth = integerList.get(0);
}
} else {
mIndicatorWidth = 0;
}
}
// 初始时的偏移量
mInitTranslationX = (int) ((mTitleWidth - mIndicatorWidth) / 2.0);
// 设置item的click事件
setTitleItemClickEvent();
//初始时tab的位移量
mTranslationX = mTitleWidth * selected_position;
highLightTextView(selected_position);
}
}
/**
* 填充标题
*
* @param datas
*/
public void setTitles(List<String> datas) {
this.mTabTitles = datas;
// 如果传入的list有值，则移除布局文件中设置的view
if (datas != null && datas.size() > 0) {
mTabLayout.removeAllViews();
this.mTabTitles = datas;
mTabVisibleCount = Math.min(datas.size(), COUNT_DEFAULT_MAX_TAB);
mTitleWidth = getScreenWidth() / mTabVisibleCount;
for (String title : mTabTitles) {
// 添加view
mTabLayout.addView(getTitleView(title));
}
if (AVERAGEFORINDICATOR){
mIndicatorWidth=mTitleWidth;
}else {
if (ADDFORINDICATOR) {
if (INDICATORWIDTH > 0) {
mIndicatorWidth = Math.min(mTitleWidth, (int) INDICATORWIDTH);
} else {
mIndicatorWidth = integerList.get(0);
}
} else {
mIndicatorWidth = 0;
}
}
// 初始时的偏移量
mInitTranslationX = (int) ((mTitleWidth - mIndicatorWidth) / 2.0);
// 设置item的click事件
setTitleItemClickEvent();
highLightTextView(0);
}
}
public void setClicked(int j) {
if (!isClick) {
isClick = true;
if (mViewPager == null) {
Message msg = handler.obtainMessage();
mTranslationX++;
msg.what = 3;
msg.arg1 = j;
handler.sendMessage(msg);
resetTextViewColor();
highLightTextView(j);
if (tabSelectedListener != null) {
tabSelectedListener.tabClicked(j);
}
} else {
mViewPager.setCurrentItem(j, false);
}
} else {
if (!handler.hasMessages(3)) {
isClick = false;
}
}
}
/**
* 标题点击事件
*/
private void setTitleItemClickEvent() {
int cCount = mTabLayout.getChildCount();
for (int i = 0; i < cCount; i++) {
final int j = i;
View view = mTabLayout.getChildAt(i);
view.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (!isClick) {
isClick = true;
if (mViewPager == null) {
Message msg = handler.obtainMessage();
mTranslationX++;
msg.what = 3;
msg.arg1 = j;
handler.sendMessage(msg);
resetTextViewColor();
highLightTextView(j);
if (tabSelectedListener != null) {
tabSelectedListener.tabClicked(j);
}
} else {
mViewPager.setCurrentItem(j, false);
}
} else {
if (!handler.hasMessages(3)) {
isClick = false;
}
}
}
});
}
}
/**
* 高亮文本
*
* @param position
*/
protected void highLightTextView(int position) {
View view = mTabLayout.getChildAt(position);
if (view instanceof TextView) {
((TextView) view).setTextColor(TEXTSELECTEDCOLOR);
((TextView) view).setTextSize(TypedValue.COMPLEX_UNIT_PX, TEXTSELECTEDSIZE);
}
}
/**
* 重置文本颜色
*/
private void resetTextViewColor() {
for (int i = 0; i < mTabLayout.getChildCount(); i++) {
View view = mTabLayout.getChildAt(i);
if (view instanceof TextView) {
((TextView) view).setTextColor(TEXTNORMALCOLOR);
//设置文字大小为px的。说明数值单位的。（当设置sp时系统会自动转化为px，因为该数值是px的）
((TextView) view).setTextSize(TypedValue.COMPLEX_UNIT_PX, TEXTNORMALSIZE);
}
}
}
/**
* 获取title view
*
* @param title
* @return
*/
private View getTitleView(String title) {
TextView tv = new TextView(getContext());
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
lp.width = mTitleWidth;
tv.setGravity(Gravity.CENTER);
tv.setTextColor(TEXTNORMALCOLOR);
tv.setText(title);
tv.setTextSize(TypedValue.COMPLEX_UNIT_PX, TEXTNORMALSIZE);
tv.setLayoutParams(lp);
int mIndicatorWidth = (int) getTextWidth(getContext(), title, (int) TEXTNORMALSIZE);
integerList.add(mIndicatorWidth);
return tv;
}
//获取文字的实际宽度。
public float getTextWidth(Context Context, String text, int textSize) {
TextPaint paint = new TextPaint();
float scaledDensity = getResources().getDisplayMetrics().scaledDensity;
//paint.setTextSize()放入的是px。
paint.setTextSize(textSize);
return paint.measureText(text);
}
int speed = -1;
/**
* 点击时，
* 回滚的速度
*/
public int SCROLL_SPEED = -10;
private Handler handler = new Handler() {
@Override
public void handleMessage(final Message msg) {
switch (msg.what) {
case 3:
if (!isClick) break;
final int position = msg.arg1;
float a = getWidth() / mTabVisibleCount * position - mTranslationX;
if (speed == -1) {
speed = (int) (a / mIndicatorWidth * 2);
speed = Math.abs(speed);
if (speed < 20) {
speed = 20;
}
}
if (a > 0) {
SCROLL_SPEED = speed;
} else if (a < 0) {
SCROLL_SPEED = -speed;
}
mTranslationX += SCROLL_SPEED;
if (a > -speed && a < speed) {
mTranslationX = getWidth() / mTabVisibleCount * position;
isClick = false;
speed = -1;
} else {
Message msg1 = handler.obtainMessage();
msg1.what = 3;
msg1.arg1 = position;
handler.sendMessage(msg1);
}
mTabLayout.invalidate();
break;
}
}
};
private class TabLayout extends LinearLayout {
private final Paint mPaintIndicator;
public TabLayout(Context context) {
this(context, null);
}
public TabLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public TabLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
setOrientation(HORIZONTAL);
setBackgroundColor(BACKGROUNDCOLOR);
mPaintIndicator = new Paint();
mPaintIndicator.setColor(INDICATORCOLOR);
mPaintIndicator.setStyle(Paint.Style.FILL);
mPaintIndicator.setStrokeWidth(Util.dip2px(context, 2));
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
//绘制指示器
canvas.save();
if (AVERAGEFORINDICATOR){
//设置导航条为每个item的宽度
float x1 = mInitTranslationX + mTranslationX;
float x2 = x1 + mIndicatorWidth;
float y1 = getHeight() - mIndicatorHeight;
float y2 = getHeight();
canvas.drawRect(x1, y1, x2, y2, mPaintIndicator);
// canvas.drawLine(x1, y1, x2, y2, mPaintIndicator);
canvas.restore();
}else {
if (ADDFORINDICATOR) {
if (INDICATORWIDTH > 0) {
//设置为固定宽度
float x1 = mInitTranslationX + mTranslationX;
float x2 = x1 + mIndicatorWidth;
float y1 = getHeight() - mIndicatorHeight;
float y2 = getHeight();
canvas.drawRect(x1, y1, x2, y2, mPaintIndicator);
// canvas.drawLine(x1, y1, x2, y2, mPaintIndicator);
canvas.restore();
} else {
//两个的适合自动识别标题的难度。
for (int j=0;j<integerList.size();j++){
if (mTranslationX<=j*mTitleWidth+20&&mTranslationX >= (mTitleWidth*j - 20))
{
mIndicatorWidth = integerList.get(j);
mInitTranslationX = (int) ((mTitleWidth - mIndicatorWidth) / 2.0);
}
}
float x1 = mInitTranslationX + mTranslationX;
float x2 = x1 + mIndicatorWidth;
float y1, y2;
y1 = getHeight() - mIndicatorHeight;
// y2 = y1 + Util.dip2px(mIndicatorHeight, getContext());
y2 = getHeight();
canvas.drawRect(x1, y1, x2, y2, mPaintIndicator);
// canvas.drawLine(x1, y1, x2, y2, mPaintIndicator);
canvas.restore();
}
} else {
}
}
}
}
/**
* 获得屏幕的宽度
*
* @return
*/
public int getScreenWidth() {
WindowManager wm = (WindowManager) getContext().getSystemService(
Context.WINDOW_SERVICE);
DisplayMetrics outMetrics = new DisplayMetrics();
wm.getDefaultDisplay().getMetrics(outMetrics);
return outMetrics.widthPixels;
}
private TabSelectedListener tabSelectedListener;
public void setTabSelectedListener(TabSelectedListener tabSelectedListener) {
this.tabSelectedListener = tabSelectedListener;
}
public interface TabSelectedListener {
void tabClicked(int position);
}
/**
* 对外的ViewPager的回调接口
*/
public interface PageChangeListener {
void onPageScrolled(int position, float positionOffset, int positionOffsetPixels);
void onPageSelected(int position);
void onPageScrollStateChanged(int state);
}
// 对外的ViewPager的回调接口
private PageChangeListener onPageChangeListener;
// 对外的ViewPager的回调接口的设置
public void setOnPageChangeListener(PageChangeListener pageChangeListener) {
this.onPageChangeListener = pageChangeListener;
}
// 设置关联的ViewPager
public void setViewPager(ViewPager mViewPager, int pos) {
this.mViewPager = mViewPager;
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
// 设置字体颜色高亮
resetTextViewColor();
highLightTextView(position);
// 回调
if (onPageChangeListener != null) {
onPageChangeListener.onPageSelected(position);
}
}
@Override
public void onPageScrolled(int position, float positionOffset,
int positionOffsetPixels) {
// 滚动
scroll(position, positionOffset);
// 回调
if (onPageChangeListener != null) {
onPageChangeListener.onPageScrolled(position,positionOffset, positionOffsetPixels);
}
}
@Override
public void onPageScrollStateChanged(int state) {
// 回调
if (onPageChangeListener != null) {
onPageChangeListener.onPageScrollStateChanged(state);
}
}
});
// 设置当前页
mViewPager.setCurrentItem(pos);
// 高亮
highLightTextView(pos);
}
/**
* 指示器跟随手指滚动，以及容器滚动
*
* @param position
* @param offset
*/
public void scroll(final int position, float offset) {
if (offset != 0.0) {
isClick = false;
}
int tabWidth = getScreenWidth() / mTabVisibleCount;
int last = 1;
// 容器滚动，当移动到倒数最后一个的时候，开始滚动
if (offset > 0 && position >= (mTabVisibleCount - last)
&& mTabLayout.getChildCount() > mTabVisibleCount) {
if (mTabVisibleCount != 1) {
scrollTo((position - (mTabVisibleCount - last)) * tabWidth+ (int) (tabWidth * offset), 0);
} else {
// 为count为1时 的特殊处理
scrollTo(position * tabWidth + (int) (tabWidth * offset), 0);
}
} else if (position < (mTabVisibleCount - last)) {
scrollTo(0, 0);
}
if (!isClick) {
// 不断改变偏移量，invalidate
mTranslationX = getWidth() / mTabVisibleCount * (position + offset);
mTabLayout.invalidate();
} else {
Message msg = handler.obtainMessage();
mTranslationX++;
msg.what = 3;
msg.arg1 = position;
handler.sendMessage(msg);
}
}
}这是CustomTablayout.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="CustomTablayout">
<attr name="textNormalColor" format="color"/>
<attr name="textSelectedColor" format="color"/>
<attr name="textNormalSize" format="dimension"/>
<attr name="textSelectedSize" format="dimension"/>
<attr name="backGroundColor" format="color"/>
<!--addforindicator为true，则添加，默认为true ，为false，默认不添加indicator-->
<attr name="addforindicator" format="boolean"/>
<!--addforindicator为true，则平均，默认为false ，为false，默认不平均indicator-->
<attr name="averageforindicator" format="boolean"/>
<attr name="indicatorColor" format="color"/>
<attr name="indicatorWidth" format="dimension"/>
<attr name="indicatorHeight" format="dimension"/>
</declare-styleable>
</resources>这是固定宽度的导航条
<com.demo.fuhao.customtablayout.CustomTablayout
android:id="@+id/custom1"
android:layout_width="match_parent"
android:layout_height="44dp"
app:textNormalColor="#000000"
app:textSelectedColor="#555555"
app:textNormalSize="17sp"
app:textSelectedSize="17sp"
app:indicatorColor="#a45689"
app:indicatorHeight="3dp"
app:indicatorWidth="20dp"
app:backGroundColor="#ffffff"
/>这是自适应标题的导航条
<com.demo.fuhao.customtablayout.CustomTablayout
android:id="@+id/custom1"
android:layout_width="match_parent"
android:layout_height="44dp"
app:textNormalColor="#000000"
app:textSelectedColor="#555555"
app:textNormalSize="17sp"
app:textSelectedSize="17sp"
app:indicatorColor="#a45689"
app:indicatorHeight="3dp"
app:indicatorWidth="0dp"
app:backGroundColor="#ffffff"
/>这是覆盖item的导航条
<com.demo.fuhao.customtablayout.CustomTablayout
android:id="@+id/custom1"
android:layout_width="match_parent"
android:layout_height="44dp"
app:textNormalColor="#000000"
app:textSelectedColor="#555555"
app:textNormalSize="17sp"
app:textSelectedSize="17sp"
app:indicatorColor="#a45689"
app:addforindicator="true"
app:averageforindicator="true"
app:indicatorHeight="3dp"
app:backGroundColor="#ffffff"
/>这是没有的导航条的
<com.demo.fuhao.customtablayout.CustomTablayout
android:id="@+id/custom1"
android:layout_width="match_parent"
android:layout_height="44dp"
app:textNormalColor="#000000"
app:textSelectedColor="#555555"
app:textNormalSize="17sp"
app:textSelectedSize="17sp"
app:indicatorColor="#a45689"
app:addforindicator="false"
app:indicatorHeight="3dp"
app:indicatorWidth="0dp"
app:backGroundColor="#ffffff"
/>下面是用法。
package com.demo.fuhao.customtablayout;
import android.content.Intent;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
/**
* Created by fuhao on 2017/1/10.
* 博客：
* github： https://github.com/fuhao012
* 项目介绍：这是一个可以自动根据标题的宽度，来设置标题下面的 indicator的长短，并且可以设置该高度。Tablayout。
*/
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private CustomTablayout customTablayout;
private ViewPager mViewPager;
private Button button_1,button_2,button_3,button_4;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findView();
setView();
setListener();
}
private void findView() {
//不要有相同的id。
customTablayout = (CustomTablayout) findViewById(R.id.custom12);
mViewPager = (ViewPager) findViewById(R.id.mViewPager);
button_1= (Button) findViewById(R.id.button_1);
button_2= (Button) findViewById(R.id.button_2);
button_3= (Button) findViewById(R.id.button_3);
button_4= (Button) findViewById(R.id.button_4);
button_1.setOnClickListener(this);
button_2.setOnClickListener(this);
button_3.setOnClickListener(this);
button_4.setOnClickListener(this);
}
private void setView() {
//初始化数据
final List<String> titles = new ArrayList<>();
final ArrayList<View> viewList = new ArrayList<View>();// 将要分页显示的View装入数组中
titles.add("标");
titles.add("标题");
titles.add("标题题");
titles.add("标题标题");
titles.add("标");
titles.add("标题");
titles.add("标题题");
titles.add("标题标题");
for(int i = 0; i <8; i ++){
TextView textView = new TextView(this);
textView.setText(titles.get(i));
textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 15);
ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewPager.LayoutParams.MATCH_PARENT);
textView.setGravity(Gravity.CENTER);
textView.setLayoutParams(params);
viewList.add(textView);
}
PagerAdapter mAdapter = new PagerAdapter() {
@Override
public int getCount() {
return titles.size();
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView(viewList.get(position));
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
View v = viewList.get(position);
ViewGroup parent = (ViewGroup) v.getParent();
if (parent != null) {
parent.removeAllViews();
}
container.addView(v, 0);
return viewList.get(position);
}
};
//绑定监听
mViewPager.setAdapter(mAdapter);
customTablayout.setTitles(titles);
customTablayout.setViewPager(mViewPager, 0);
// customTablayout.setTitles(titles, 3);//可以设置默认选中的title
customTablayout.setOnPageChangeListener(new CustomTablayout.PageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public void onPageSelected(int position) {
Toast.makeText(MainActivity.this, "选择了：" + position, Toast.LENGTH_SHORT).show();
}
@Override
public void onPageScrollStateChanged(int state) {
}
});
// //上面是有ViewPager的情况。如果不想与Viewpager绑定则可以调用：
// customTablayout.setTabSelectedListener(new CustomTablayout.TabSelectedListener() {
// @Override
// public void tabClicked(int position) {
//
// }
// });
//
// customTablayout.setClicked(3);
}
private void setListener() {
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.button_1:
Intent intent1=new Intent(MainActivity.this,ActivityButton1.class);
startActivity(intent1);
break;
case R.id.button_2:
Intent intent2=new Intent(MainActivity.this,ActivityButton2.class);
startActivity(intent2);
break;
case R.id.button_3:
Intent intent3=new Intent(MainActivity.this,ActivityButton3.class);
startActivity(intent3);
break;
case R.id.button_4:
Intent intent4=new Intent(MainActivity.this,ActivityButton4.class);
startActivity(intent4);
break;
}
}
}
本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
