Navigation Drawer 和 SlidingTabLayout 如何一起实现? [英] How to implement Navigation Drawer and SlidingTabLayout together?
问题描述
我已经实现了导航抽屉.这是activity_nav_drawer:
I have implemented the Navigation Drawer. This is 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 :
This is 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.
Each item in my Navigation Drawer corresponds to a fragment, namely Menu1_Fragment, Menu2_Fragment, Menu3_Fragment with each having its own layout file.
现在我想在导航抽屉的第一项(即 Menu1_Fragment)中实现一个 SlidingTabLayout.
Now I want to implement a SlidingTabLayout in just the first item of my Navigation Drawer i.e. the Menu1_Fragment.
我该怎么做?我看过很多教程，但所有这些教程都在单独的 Activity 中实现了 SlidingTabLayout，但我想在导航抽屉的片段中实现它.(或者也许它可以在 Navigation Drawer Activity 中实现，只是第一个片段，我不知道).
How do I do this? I have watched many tutorials but all of those implement the SlidingTabLayout in a seperate Activity but I want to implement it in a Fragment of Navigation Drawer. (or maybe it can be implemented in the Navigation Drawer Activity for just the first fragment, I don't know).
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.
I've copied the java source files for SlidingTabLayout.java and SlidingTabStrip.java. Please suggest me how to proceed on this.
推荐答案
想通了.遵循本教程:
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 文件而不是 NavDrawer Activity 文件中编写了代码.Java 代码需要写在 onCreateView() 而不是 onCreate() 因为它是一个片段.其次在我们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.
I implemented this tutorial on a fragment instead of an activity. The fragment was the first section or fragment of my Navigation Drawer. The only differences were that I wrote the code in my Fragment's layout and Java file instead of my NavDrawer Activity's files. The the Java code needs to be written in onCreateView() instead of onCreate() because its a Fragment. Secondly in the Java code of our Fragment, we need to pass the parameter getChildFragmentManager instead of getSupportFragmentManager in the constructor call of ViewPagerAdapter.
这是 Java 代码:
Here's the Java Code :
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;
}
}
在此之后，只需按照教程进行操作即可.
After this just follow the tutorial as it is.
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