PagerTabStrip标签定位到左

问题描述

我使用PagerTabStrip设置滑动标签。但是，当我设置三个选项卡，它显示在中央的第一个选项卡，使用户无法看到所有三个选项卡的第一眼。

我

该如何调整他们离开？

我想移动的标签左侧是这样的。

我试过了重力，但没有运气。

  pagerTabStrip.setGravity（Gravity.LEFT）;
 

这是在$ C $下MainActivity。

  @覆盖
保护无效的onCreate（包savedInstanceState）{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.activity_main）;

    ViewPager viewPager =（ViewPager）findViewById（R.id.pager）;
    PagerTabStrip pagerTabStrip =（PagerTabStrip）findViewById（R.id.pager_tab_strip）;

    FragmentPagerAdapter fragmentPagerAdapter =新MyFragmentPagerAdapter（
            getSupportFragmentManager（））;
    viewPager.setAdapter（fragmentPagerAdapter）;

    pagerTabStrip.setGravity（Gravity.LEFT）;
}
 

和

  MyFragmentPagerAdapter延伸FragmentPagerAdapter {

    私人最终的String [] PAGETITLE = {入口，历史，报告};

    公共MyFragmentPagerAdapter（FragmentManager fragmentManager）{
        超（fragmentManager）;
    }

    @覆盖
    公共片段的getItem（INT位置）{

        片段片段=新PageFragment（）;
        捆绑参数=新包（）;
        arguments.putString（PageIndex的，Integer.toString（位置+ 1））;
        fragment.setArguments（参数）;
        返回片段;
    }

    @覆盖
    公众诠释getCount将（）{
        返回pageTitle.length;
    }

    @覆盖
    公共CharSequence的getPageTitle（INT位置）{
        返回PAGETITLE [位置]
    }

}
 

---

的问题就迎刃而解了！

您需要下载从GitHub上，而不是谷歌开发者页面获取最新的codeS。

SlidingTabLayout.java

SlidingTabStrip

然后，您可以使用setDistributeEvenly（真）是这样的。

  @覆盖
公共无效onViewCreated（查看视图，捆绑savedInstanceState）{

    //获取ViewPager并设置它的PagerAdapter以便它可以显示项目
    mViewPager =（ViewPager）view.findViewById（R.id.viewpager）;

    FragmentManager fragmentManager = getFragmentManager（）;
    MyFragmentPagerAdapter适配器=新MyFragmentPagerAdapter（fragmentManager）;
    mViewPager.setAdapter（适配器）;

    //给这个SlidingTabLayout的ViewPager，这是一定要做的后ViewPager已
    //这是PagerAdapter集。
    mSlidingTabLayout =（SlidingTabLayout）view.findViewById（R.id.sliding_tabs）;
    mSlidingTabLayout.setDistributeEvenly（真正的）;
    mSlidingTabLayout.setViewPager（mViewPager）;
}
 

解决方案

setViewPager（）之前，使用这样的：

  sliding_tabs.setDistributeEvenly（真正的）;
 

如果你得到这个错误无法从谷歌I / O源$ C解决方法setDistributeEvenly（布尔），您应该更新您的SlidingTabLayout.java和SlidingTabStrip.java $ C：

SlidingTabLayout.java

SlidingTabStrip

I am using PagerTabStrip to set sliding tabs. However, when I set three tabs, it shows the first tab in the center so users cannot see all three tabs at first glance.

How can I align them to left?

I want to move tabs to the left like this.

I tried gravity, but no luck.

pagerTabStrip.setGravity(Gravity.LEFT);

This is the code for MainActivity.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
    PagerTabStrip pagerTabStrip = (PagerTabStrip) findViewById(R.id.pager_tab_strip);

    FragmentPagerAdapter fragmentPagerAdapter = new MyFragmentPagerAdapter(
            getSupportFragmentManager());
    viewPager.setAdapter(fragmentPagerAdapter);

    pagerTabStrip.setGravity(Gravity.LEFT);
}

And

MyFragmentPagerAdapter extends FragmentPagerAdapter {

    private final String[] pageTitle = { "Entry", "History", "Report" };

    public MyFragmentPagerAdapter(FragmentManager fragmentManager) {
        super(fragmentManager);
    }

    @Override
    public Fragment getItem(int position) {

        Fragment fragment = new PageFragment();
        Bundle arguments = new Bundle();
        arguments.putString("pageIndex", Integer.toString(position + 1));
        fragment.setArguments(arguments);
        return fragment;
    }

    @Override
    public int getCount() {
        return pageTitle.length;
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return pageTitle[position];
    }

}

---

The Problem Solved!!

You need to download the latest codes from github instead of google developer page.

SlidingTabLayout.java

SlidingTabStrip

Then, you can use setDistributeEvenly(true) like this.

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {

    // Get the ViewPager and set it's PagerAdapter so that it can display items
    mViewPager = (ViewPager) view.findViewById(R.id.viewpager);

    FragmentManager fragmentManager = getFragmentManager();
    MyFragmentPagerAdapter adapter = new MyFragmentPagerAdapter(fragmentManager);
    mViewPager.setAdapter(adapter);

    // Give the SlidingTabLayout the ViewPager, this must be done AFTER the ViewPager has had
    // it's PagerAdapter set.
    mSlidingTabLayout = (SlidingTabLayout) view.findViewById(R.id.sliding_tabs);
    mSlidingTabLayout.setDistributeEvenly(true);
    mSlidingTabLayout.setViewPager(mViewPager);
}

解决方案

Use this before setViewPager():

sliding_tabs.setDistributeEvenly(true);

If you got this error Cannot resolve method 'setDistributeEvenly(boolean)', you should update your SlidingTabLayout.java and SlidingTabStrip.java from Google I/O source code:

SlidingTabLayout.java

SlidingTabStrip

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