項(xiàng)目地址：
https://github.com/ogaclejapan/SmartTabLayout

介紹：
一個(gè)自定義的ViewPager tab指示爹凹，可以在滑動(dòng)的時(shí)候讓用戶感受到整個(gè)過程的UI反饋。

使用說明：

build.gradle.

dependencies {
    compile 'com.ogaclejapan.smarttablayout:library:1.6.1@aar'

    //Optional: see how to use the utility.
    compile 'com.ogaclejapan.smarttablayout:utils-v4:1.6.1@aar'

    //Optional: see how to use the utility.
    compile 'com.ogaclejapan.smarttablayout:utils-v13:1.6.1@aar'
}



將SmartTabLayout控件放到布局中懈涛，一般來說是放在ViewPager的上面逛万。

<com.ogaclejapan.smarttablayout.SmartTabLayout
    android:id="@+id/viewpagertab"
    android:layout_width="match_parent"
    android:layout_height="48dp"
    app:stl_indicatorAlwaysInCenter="false"
    app:stl_indicatorInFront="false"
    app:stl_indicatorInterpolation="smart"
    app:stl_indicatorColor="#40C4FF"
    app:stl_indicatorThickness="4dp"
    app:stl_indicatorCornerRadius="2dp"
    app:stl_underlineColor="#4D000000"
    app:stl_underlineThickness="1dp"
    app:stl_dividerColor="#4D000000"
    app:stl_dividerThickness="1dp"
    app:stl_defaultTabTextAllCaps="true"
    app:stl_defaultTabTextColor="#FC000000"
    app:stl_defaultTabTextSize="12sp"
    app:stl_defaultTabTextHorizontalPadding="16dp"
    app:stl_defaultTabTextMinWidth="0dp"
    app:stl_distributeEvenly="false"
    />
 
<android.support.v4.view.ViewPager
    android:id="@+id/viewpager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@id/viewpagertab"
    />

在onCreate或者onCreateView中，將ViewPager和我們的控件綁定（如果你使用了工具目錄中的FragmentPagerItemAdapter批钠，你可以很容易田間item到PagerAdapter中）

    FragmentPagerItemAdapter adapter = new FragmentPagerItemAdapter(
            getSupportFragmentManager(), FragmentPagerItems.with(this)
            .add(R.string.titleA, PageFragment.class)
            .add(R.string.titleB, PageFragment.class)
            .create());
     
    ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
    viewPager.setAdapter(adapter);
     
    SmartTabLayout viewPagerTab = (SmartTabLayout) findViewById(R.id.viewpagertab);
    viewPagerTab.setViewPager(viewPager);

(可選) 如果你使用了OnPageChangeListener宇植，請將OnPageChangeListener設(shè)置到viewPagerTab，而不是直接調(diào)用ViewPager的setOnPageChangeListener埋心。

viewPagerTab.setOnPageChangeListener(mPageChangeListener);

(可選)使用 FragmentPagerItemAdapter指郁，可以方便的獲得Fragment所在的position

int position = FragmentPagerItem.getPosition(getArguments());

如何使用utils

Utility has two types available to suit the Android support library.

有兩個(gè)utils

utils-v4包含了適合android.support.v4.app.Fragment的PagerAdapter。

utils-v13包含了適合android.app.Fragment的PagerAdapter拷呆。

這兩個(gè)工具只是依賴不同闲坎，實(shí)現(xiàn)功能是一樣的。

基于view的PagerAdapter

    ViewPagerItemAdapter adapter = new ViewPagerItemAdapter(ViewPagerItems.with(this)
            .add(R.string.title, R.layout.page)
            .add(ViewPagerItem.of("title", R.layout.page))
            .create());
     
    viewPager.setAdapter(adapter);
     
    //...
     
    public void onPageSelected(int position) {
     
      //.instantiateItem() from until .destoryItem() is called it will be able to get the View of page.
      View page = adapter.getPage(position);
     
    }

基于Fragment的PagerAdapter

    FragmentPagerItemAdapter adapter = new FragmentPagerItemAdapter(
            getSupportFragmentManager(), FragmentPagerItems.with(this)
            .add(R.string.title, PageFragment.class),
            .add(R.string.title, WithArgumentsPageFragment.class, new Bundler().putString("key", "value").get()),
            .add(FragmentPagerItem.of("title", PageFragment.class))
            .create());
     
    viewPager.setAdapter(adapter);
     
    //...
     
    public void onPageSelected(int position) {
     
      //.instantiateItem() from until .destoryItem() is called it will be able to get the Fragment of page.
      Fragment page = adapter.getPage(position);
     
    }