重寫Viewpager

public class MyViewPager extends ViewPager {
    private int current;
    private int viewHeight = 0;

    private boolean scrollble = true;

    public MyViewPager(Context context) {
        super(context);
    }

    public MyViewPager(Context context, AttributeSet attrs) {
        super
 
(context, attrs);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        View childView = getChildAt(getCurrentItem());
        if (childView != null)  //有可能沒有子view
        {
            childView.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
            viewHeight = childView.getMeasuredHeight();   //得到父元素對自身設定的高
 

            // UNSPECIFIED(未指定),父元素部隊自元素施加任何束縛，子元素可以得到任意想要的大小
            //EXACTLY(完全)，父元素決定自元素的確切大小，子元素將被限定在給定的邊界裡而忽略它本身大小；
            //AT_MOST(至多)，子元素至多達到指定大小的值。
            heightMeasureSpec = MeasureSpec.makeMeasureSpec(viewHeight, MeasureSpec.EXACTLY);
        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }

    public
 
 void resetHeight(int current) {
        this.current = current;
        if (getChildCount() > current) {
            LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) getLayoutParams();
            if (layoutParams == null) {
                layoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, viewHeight);
            } else {
                layoutParams.height = viewHeight;
            }
            setLayoutParams(layoutParams);
        }
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        if (!scrollble) {
            return true;
        }
        return super.onTouchEvent(ev);
    }

    public boolean isScrollble() {
        return scrollble;
    }

    public void setScrollble(boolean scrollble) {
        this.scrollble = scrollble;
    }
}

xml檔案 tablayout +viewpager

 <com.flyco.tablayout.SegmentTabLayout
                android:id="@+id/tab_cd"
                android:layout_width="wrap_content"
                android:layout_height="30dp"
                android:layout_gravity="center"
                android:layout_margin="10dp"
                tl:tl_bar_color="@color/none"
                tl:tl_indicator_color="@color/red_progress"
                tl:tl_indicator_corner_radius="10dp"
                tl:tl_tab_padding="30dp"
                tl:tl_textSelectColor="@color/white"
                tl:tl_textUnselectColor="@color/gray_txt_select_color"/>

<org.gbmedia.hmall.main.update.view.MyViewPager
                android:id="@+id/mvp_cd"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="@dimen/content_space_h"
                android:layout_marginRight="@dimen/content_space_h"
                android:layout_marginTop="@dimen/content_space_h"
                android:background="@color/white"/>

activity

    @ViewInject(R.id.tab_cd)
    SegmentTabLayout tab_cd;
    @ViewInject(R.id.mvp_cd)
    MyViewPager vp_cd;
    private MyViewPagerAdapter myViewPagerAdapter;

    private LocalActivityManager manager;
    private List<View> mViewList = new ArrayList<>();
    private String[] mTitles = {"資源詳情", "湊單進度"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        manager = new LocalActivityManager(this, true);
        manager.dispatchCreate(savedInstanceState);
        vp_cd.getParent().requestDisallowInterceptTouchEvent(true);
        tab_cd.setTabData(mTitles);
        View tabDetail = manager.startActivity("0", intentRes).getDecorView();

        mViewList.add(tabDetail);
        Intent intentprogress = new Intent(this, ResCDProgressActivity.class);
        intentprogress.putExtra("coudan_info", detail.coudan_info);
        View tabProgress = manager.startActivity("1", intentprogress).getDecorView();
        mViewList.add(tabProgress);

        Intent intent = getIntent();
        int page = intent.getIntExtra("page", 0);
        vp_cd.setCurrentItem(page);
        myViewPagerAdapter = new MyViewPagerAdapter(mViewList, mTitles);
        vp_cd.setAdapter(myViewPagerAdapter);
        vp_cd.setOffscreenPageLimit(0);

        tab_cd.setOnTabSelectListener(new OnTabSelectListener() {
            @Override
            public void onTabSelect(int position) {
                if (position == 0) {
                    ll_detail.setVisibility(View.VISIBLE);
                    ll_program.setVisibility(View.GONE);
                } else {
                    ll_program.setVisibility(View.VISIBLE);
                    ll_detail.setVisibility(View.GONE);
                }
                vp_cd.setCurrentItem(position);
            }

            @Override
            public void onTabReselect(int position) {

            }
        });

        vp_cd.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

            }

            @Override
            public void onPageSelected(int position) {
                vp_cd.resetHeight(position);
                tab_cd.setCurrentTab(position);
            }

            @Override
            public void onPageScrollStateChanged(int state) {

            }
        });
        vp_cd.resetHeight(0);
    }

adapter

public class MyViewPagerAdapter extends PagerAdapter {
    private List<View> mViewList;
    private String[] mTitles;

    public MyViewPagerAdapter(List<View> mViewList, String[] titles) {
        this.mViewList = mViewList;
        this.mTitles = titles;
    }

    @Override
    public int getCount() {
        return mViewList.size();
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        container.addView(mViewList.get(position));//新增頁卡
        container.setTag(position);
        return mViewList.get(position);
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView(mViewList.get(position));//刪除頁卡
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;//官方推薦寫法
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return mTitles[position];//頁卡標題
    }
}