我有一个应用程序与滑动抽屉，15碎片（滑动）选项卡与视图寻呼机编号1-15，旋转器在行动栏，查看寻呼机显示15碎片 我需要的是当我选择选项4（例如）在Spinner DropDown中我希望屏幕显示片段4以及4的视图寻呼机 我怎样才能实现？
我的MainActivity.java
public class MainActivity extends FragmentActivity implements ActionBar.OnNavigationListener{
private static final String TAG = MainActivity.class.getSimpleName();
private DrawerLayout mDrawerLayout;
private ActionBar actionBar;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
private ArrayList<SpinnerNavItem> navSpinner;
private TitleNavigationAdapter adapter;
private CharSequence mDrawerTitle;
private CharSequence mTitle;
private String[] mDrawerItmes;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mTitle = mDrawerTitle = getTitle();
actionBar = getActionBar();
// Hide the action bar title
actionBar.setDisplayShowTitleEnabled(false);
// Enabling Spinner dropdown navigation
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
navSpinner = new ArrayList<SpinnerNavItem>();
navSpinner.add(new SpinnerNavItem("MOVIE1", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE2", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE3", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE4", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE5", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE6", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE7", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE8", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE9", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE10", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE11", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE12", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE13", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE14", R.drawable.ic_incmp));
navSpinner.add(new SpinnerNavItem("MOVIE15", R.drawable.ic_incmp));
adapter = new TitleNavigationAdapter(getApplicationContext(), navSpinner);
// assigning the spinner navigation
actionBar.setListNavigationCallbacks(adapter, this);
mDrawerItmes = getResources().getStringArray(R.array.drawer_titles);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ListView) findViewById(R.id.left_drawer);
// set a custom shadow that overlays the main content when the drawer oepns
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
// Add items to the ListView
mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item, mDrawerItmes));
// Set the OnItemClickListener so something happens when a
// user clicks on an item.
mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
// Enable ActionBar app icon to behave as action to toggle nav drawer
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(
this,
mDrawerLayout,
R.drawable.ic_drawer,
R.string.drawer_open,
R.string.drawer_close
) {
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu
}
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if(savedInstanceState == null) {
navigateTo(0);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(mDrawerToggle.onOptionsItemSelected(item)) {
return false;
}
return super.onOptionsItemSelected(item);
}
/*
* When using the ActionBarDrawerToggle, you must call it during onPostCreate()
* and onConfigurationChanged()
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
mDrawerToggle.onConfigurationChanged(newConfig);
}
private class DrawerItemClickListener implements OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.v(TAG, "LEVEL SELECTED");
navigateTo(position);
}
}
private void navigateTo(int position) {
Log.v(TAG, "List View Item: " + position);
switch(position) {
case 0:
/*getSupportFragmentManager()
.beginTransaction()
.add(R.id.content_frame,
ItemOne.newInstance(),
ItemOne.TAG).commit();*/
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.content_frame,TabbedActivity.newInstance(),TabbedActivity.TAG).commit();
break;
case 1:
getSupportFragmentManager()
.beginTransaction()
.replace(R.id.content_frame,
TabbedActivity2.newInstance(),
TabbedActivity2.TAG).commit();
break;
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
@Override
public boolean onNavigationItemSelected(int position, long arg1) {
SpinnerNavItem selectedItem = navSpinner.get(position );
Fragment fragment = null;
FragmentTransaction fragmentTransaction = getSupportFragmentManager()
.beginTransaction();
switch (position) {
case 0:
fragment = new Movie1();
break;
case 1:
fragment =new Movie2();
break;
case 2:
fragment = new Movie3();
break;
default:
break;
}
fragmentTransaction.replace(R.id.content_frame ,fragment);
fragmentTransaction.commit();
return true;
}
}
和我的
activity_main.xml中
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- android:layout_gravity="start" tells DrawerLayout to treat
this as a sliding drawer on the left side for left-to-right
languages and on the right side for right-to-left languages.
The drawer is given a fixed width in dp and extends the full height of
the container. A solid background is used for contrast
with the content view. -->
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@android:color/transparent"
android:dividerHeight="0dp"
android:background="#111"/>
</android.support.v4.widget.DrawerLayout>
TabbedActivity.java
public class TabbedActivity extends Fragment {
/**
* 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;
public static final String TAG = TabbedActivity.class.getSimpleName();
/**
* The {@link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
public static TabbedActivity newInstance() {
return new TabbedActivity();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.activity_item_one, container, false);
mSectionsPagerAdapter = new SectionsPagerAdapter(
getChildFragmentManager());
mViewPager = (ViewPager) v.findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
return v;
}
/**
* 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) {
switch (position) {
case 0:
return new Movie1();
case 1:
return new Movie2(2);
case 2:
return new Movie3();
case 3:
return new Movie4();
case 4:
return new Movie5();
case 5:
return new Movie6();
case 6:
return new Movie7();
case 7:
return new Movie8();
case 8:
return new Movie9();
case 9:
return new Movie10();
case 10:
return new Movie11();
case 11:
return new Movie12();
case 12:
return new Movie13();
case 13:
return new Movie14();
case 14:
return new Movie15();
case 15:
return new Movie16();
}
return null;
}
@Override
public int getCount() {
// Show 3 total pages.
return 15;
}
@Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
Log.v(TAG, "SECTION: " + position);
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);
case 3:
return getString(R.string.title_section4).toUpperCase(l);
case 4:
return getString(R.string.title_section5).toUpperCase(l);
case 5:
return getString(R.string.title_section6).toUpperCase(l);
case 6:
return getString(R.string.title_section7).toUpperCase(l);
case 7:
return getString(R.string.title_section8).toUpperCase(l);
case 8:
return getString(R.string.title_section9).toUpperCase(l);
case 9:
return getString(R.string.title_section10).toUpperCase(l);
case 10:
return getString(R.string.title_section11).toUpperCase(l);
case 11:
return getString(R.string.title_section12).toUpperCase(l);
case 12:
return getString(R.string.title_section13).toUpperCase(l);
case 13:
return getString(R.string.title_section14).toUpperCase(l);
case 14:
return getString(R.string.title_section15).toUpperCase(l);
case 15:
return getString(R.string.title_section15).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_tabbed_movie,
container, false);
return rootView;
}
}
}
答案 0 :(得分：0)
当用户选择微调项目时，您必须执行以下步骤：
首先通过调用
找到TabbedActivity
TabbedActivity f = (TabbedActivity) getSupportFragmentManager().findFragmentById(TabbedActivity.Tag);
然后您必须在该片段中获得viewpager，您可以使用getter - setter或声明public，我假设getter方法：
f.getViewPager().setCurrentItem(the position you want to go, false);
所以你的代码必须是：
小心你有两个TabbedActivity，我不知道哪一个在显示，所以你必须在下面的代码中选择正确的一个：
@Override
public boolean onNavigationItemSelected(int position, long arg1) {
TabbedActivity f = (TabbedActivity) getSupportFragmentManager().findFragmentById(TabbedActivity.Tag);
f.getViewPager().setCurrentItem(position, false);
return true;
}