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这篇文章主要介绍"Android中怎么使用viewpager滑动指示器"，在日常操作中，相信很多人在Android中怎么使用viewpager滑动指示器问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答"Android中怎么使用viewpager滑动指示器"的疑惑有所帮助!接下来，请跟着小编一起来学习吧!

工程目录：

1. MainActivity.java

public class MainActivity extends FragmentActivity { private ViewPagerFrameAdapter adapter; //适配器（标题和内容） private ViewPager mPager; private TabPageIndicator tabbPageIndicator; // private UnderlinePageIndicatorEx underlinePageIndicator; private int COUNT = 0; private List titles = new ArrayList(); //标题 @Override protected void onCreate(Bundle bundle) { super.onCreate(bundle); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_main); //标题，这里自己造的假数据 for (int j = 0; j < 3 ; j++){ titles.add( "第"+ j +"标签卡"); } mPager = (ViewPager)findViewById(R.id.pager); adapter = new ViewPagerFrameAdapter(getSupportFragmentManager(),titles); mPager.setAdapter(adapter); //得到指示器 tabbPageIndicator = (TabPageIndicator) findViewById(R.id.tab_indicator); tabbPageIndicator.setViewPager(mPager); //下标 underlinePageIndicator = (UnderlinePageIndicatorEx)findViewById(R.id.underline_indicator); underlinePageIndicator.setViewPager(mPager); underlinePageIndicator.setFades(false); //设置指示器 tabbPageIndicator.setOnPageChangeListener(underlinePageIndicator); } //adapter 没啥好说的 跟前面的一样 private class ViewPagerFrameAdapter extends FragmentStatePagerAdapter{ private List title; //页面标题头部数据 public ViewPagerFrameAdapter(FragmentManager fm, List title) { super(fm); this.title = title; } //根据position 返回 fragment @Override public Fragment getItem(int position) { return ArrayFragment.newInstance(position); } //size @Override public int getCount() { return title.size(); } //顶部的title @Override public CharSequence getPageTitle(int position) { if (titles != null){ return titles.get(position).toString(); } return super.getPageTitle(position); } } }

UnderlinePageIndicatorEx.java

//继承这个然后重写 public class UnderlinePageIndicatorEx extends UnderlinePageIndicator{ public UnderlinePageIndicatorEx(Context context) { super(context, null); } public UnderlinePageIndicatorEx(Context context, AttributeSet attrs) { super(context, attrs, R.attr.vpiUnderlinePageIndicatorStyle); } public UnderlinePageIndicatorEx(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } //自身的 ViewPage传递过去 @Override public void setViewPager(ViewPager viewPager) { if (mViewPager == viewPager){ return; } // if (mViewPager != null) { // mViewPager.setOnPageChangeListener(null); // } if (viewPager.getAdapter() == null) { throw new IllegalStateException(" pager 没有 加入 adapter"); } mViewPager = viewPager; // mViewPager.setOnPageChangeListener(this); invalidate(); post(new Runnable(){ @Override public void run() { if (mFades) { post(mFadeRunnable); } } }); } }

ArrayFragment.java

public class ArrayFragment extends Fragment{ private int position; public ArrayFragment(int position){ this.position = position; } // 返回 viwePager 下面滑动的页面 public static ArrayFragment newInstance(int position){ return new ArrayFragment(position); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); } @Override public void onDestroy() { super.onDestroy(); } // 根据position 返回不同的view @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.layoutaa, null); return view; } }

好了接下来是 布局xml了。

接下来设置 滑动指示器的style

@style/CustomTabPageIndicator @style/CustomUnderlinePageIndicator #00000000 @style/CustomTabPageIndicator_text @color/selector_tab 20sp @drawable/custom_tab_indicator_divider 10dip middle 4dp 8dp 4dp 8dp horizontal 8dp monospace #EB5548 #00000000 1000 1000

selector_tab.xml 这个是 选择器 在style中引用的，是用来切换 被选中的背景色的

到此，关于"Android中怎么使用viewpager滑动指示器"的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧!若想继续学习更多相关知识，请继续关注网站，小编会继续努力为大家带来更多实用的文章!

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