PagerTabStrip选项卡左对齐

Question

我正在使用PagerTabStrip来设置滑动标签.但是,当我设置三个选项卡时,它会显示中心的第一个选项卡,因此用户一眼就看不到所有三个选项卡.

我怎样才能将它们对齐到左边？

我想像这样向左移动标签.

我试过引力,但没有运气.

pagerTabStrip.setGravity(Gravity.LEFT);

这是MainActivity的代码.

@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);
}

和

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];
    }

}

---

解决了问题!!

您需要从github而不是谷歌开发者页面下载最新代码.

SlidingTabLayout.java

SlidingTabStrip

然后,您可以像这样使用setDistributeEvenly(true).

@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);
}

Answer 1

在setViewPager()之前使用它:

sliding_tabs.setDistributeEvenly(true);

如果出现此错误Cannot resolve method 'setDistributeEvenly(boolean)',则应从Google I/O源代码更新SlidingTabLayout.java和SlidingTabStrip.java:

SlidingTabLayout.java

SlidingTabStrip