android-如何一起实现导航抽屉和SlidingTabLayout？
作者：互联网
我已经实现了导航抽屉.这是activity_nav_drawer：
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context="com.example.jyot.advanceparking.NavDrawer">
<FrameLayout android:id="@+id/container" android:layout_width="match_parent"
android:layout_height="match_parent" />
<fragment android:id="@+id/navigation_drawer"
android:layout_width="@dimen/navigation_drawer_width" android:layout_height="match_parent"
android:layout_gravity="start"
android:name="com.example.jyot.advanceparking.NavigationDrawerFragment"
tools:layout="@layout/fragment_navigation_drawer" />
这是NavDrawer.java：
public class NavDrawer extends ActionBarActivity
implements NavigationDrawerFragment.NavigationDrawerCallbacks {
/**
* Fragment managing the behaviors, interactions and presentation of the navigation drawer.
*/
private NavigationDrawerFragment mNavigationDrawerFragment;
/**
* Used to store the last screen title. For use in {@link #restoreActionBar()}.
*/
private CharSequence mTitle;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_nav_drawer);
mNavigationDrawerFragment = (NavigationDrawerFragment)
getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
mTitle = getTitle();
// Set up the drawer.
mNavigationDrawerFragment.setUp(
R.id.navigation_drawer,
(DrawerLayout) findViewById(R.id.drawer_layout));
}
@Override
public void onNavigationDrawerItemSelected(int position) {
Fragment objFragment = null;
switch(position){
case 0:
objFragment = new Menu1_Fragment();
break;
case 1:
objFragment = new Menu2_Fragment();
break;
case 2:
objFragment = new Menu3_Fragment();
break;
}
// update the main content by replacing fragments
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.container, objFragment)
.commit();
}
public void onSectionAttached(int number) {
switch (number) {
case 1:
mTitle = getString(R.string.title_section1);
break;
case 2:
mTitle = getString(R.string.title_section2);
break;
case 3:
mTitle = getString(R.string.title_section3);
break;
}
}
public void restoreActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setTitle(mTitle);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
// Only show items in the action bar relevant to this screen
// if the drawer is not showing. Otherwise, let the drawer
// decide what to show in the action bar.
getMenuInflater().inflate(R.menu.nav_drawer, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_nav_drawer, container, false);
return rootView;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((NavDrawer) activity).onSectionAttached(
getArguments().getInt(ARG_SECTION_NUMBER));
}
}
}
我的导航抽屉中的每个项目都对应一个片段,即Menu1_Fragment,Menu2_Fragment,Menu3_Fragment,每个项目都有自己的布局文件.
现在,我想仅在导航抽屉的第一项即Menu1_Fragment中实现SlidingTabLayout.
我该怎么做呢？我看了很多教程,但是所有这些教程都是在单独的Activity中实现SlidingTabLayout的,但是我想在Navigation Drawer的Fragment中实现它. (或者也许可以在“导航抽屉活动”中仅针对第一个片段实现该功能,我不知道).
我已经复制了SlidingTabLayout.java和SlidingTabStrip.java的Java源文件.请建议我如何进行此操作.
解决方法:
弄清楚了.遵循了本教程：
http://www.android4devs.com/2015/01/how-to-make-material-design-sliding-tabs.html
我在片段而不是活动上实现了本教程.该片段是我的导航抽屉的第一部分或片段.唯一的区别是,我在Fragment的布局和Java文件中而不是在NavDrawer Activity的文件中编写了代码. Java代码需要用onCreateView()而不是onCreate()编写,因为它是片段.其次,在Fragment的Java代码中,我们需要在ViewPagerAdapter的构造函数调用中传递参数getChildFragmentManager而不是getSupportFragmentManager.
这是Java代码：
package com.example.jyot.advanceparking;
public class Menu1_Fragment extends Fragment {
ViewPager pager;
ViewPagerAdapter adapter;
SlidingTabLayout tabs;
CharSequence Titles[]={"Home","Events"};
int Numboftabs =2;
View rootView;
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.menu1_layout, container, false);
// Creating The ViewPagerAdapter and Passing Fragment Manager, Titles fot the Tabs and Number Of Tabs.
adapter = new ViewPagerAdapter(getChildFragmentManager(), Titles, Numboftabs);
// Assigning ViewPager View and setting the adapter
pager = (ViewPager) rootView.findViewById(R.id.pager);
pager.setAdapter(adapter);
// Assiging the Sliding Tab Layout View
tabs = (SlidingTabLayout) rootView.findViewById(R.id.tabs);
tabs.setDistributeEvenly(true); // To make the Tabs Fixed set this true, This makes the tabs Space Evenly in Available width
// Setting the ViewPager For the SlidingTabsLayout
tabs.setViewPager(pager);
return rootView;
}
}
之后,只需按照本教程进行操作即可.
标签：android,android-fragments,android-viewpager,material-design,navigation-drawer 来源： https://codeday.me/bug/20191009/1879448.html