Android 如何实现此滑动导航栏?
我想将如GIF所示的滑动导航条添加到我的应用程序中 应用程序“> 编辑:Android 如何实现此滑动导航栏?,android,android-layout,android-fragments,android-viewpager,Android,Android Layout,Android Fragments,Android Viewpager,我想将如GIF所示的滑动导航条添加到我的应用程序中 应用程序“> 编辑: public class MainActivity extends FragmentActivity { /** * The {@link android.support.v4.view.PagerAdapter} that will provide * fragments for each of the sections. We use a * {@link android.support.v4.app.Frag
public class MainActivity extends FragmentActivity {
/**
* The {@link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {@link android.support.v4.app.FragmentPagerAdapter} derivative, which
* will keep every loaded fragment in memory. If this becomes too memory
* intensive, it may be best to switch to a
* {@link android.support.v4.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Create the adapter that will return a fragment for each of the three
// primary sections of the app.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
/**
* A {@link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a DummySectionFragment (defined as a static inner class
// below) with the page number as its lone argument.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1);
fragment.setArguments(args);
return fragment;
}
@Override
public int getCount() {
// Show 3 total pages.
return 3;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A dummy fragment representing a section of the app, but that simply
* displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
public static final String ARG_SECTION_NUMBER = "section_number";
public DummySectionFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main_dummy, container, false);
TextView dummyTextView = (TextView) rootView.findViewById(R.id.section_label);
dummyTextView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
}
我尝试了下面的代码来实现这个导航栏,基本上它有一个标题栏和导航栏,但是现在..如何使用不同的布局来进行不同的导航滑动
感谢您的帮助!查看支持库中的
ViewPager
和FragmentPagerAdapter
。
您需要一个ViewPager、Fragments和PagerTitleStrip 你可以在这里阅读:
我强烈建议你学习如何在应用程序中使用和处理片段,如果你还没有使用它们的话。这是ViewPager中所需要的。查看Android导航示例,看看你到目前为止尝试了哪些源代码?我特别想要这种导航栏,我不知道怎么做。我已经尝试过sherlock导航动作栏。我没有e 50rep尚未发表评论。因此,我在这里发表评论。-----您必须创建片段。首先,ViewPager中的片段可以被视为活动,创建扩展support.Fragment的类。重写片段类中的OnCreateView方法并为其提供视图。然后您可以在ViewPager中设置它们。很好,但如果可能,可以n您可以编辑我的代码并帮助我。:)如果您需要多个布局,则必须创建多个片段。