问题
I have an activity holding a fragment, in this fragment there is a button , when it is clicked, a dialog is popped out.
In this dialog, there is a Viewpager, which holds some fragments to display.
Here are the code and the error, please spare your valuable time to show me where I am wrong. I much appreciate your help.
MainActivity.class
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
public class MainActivity extends FragmentActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fm.beginTransaction();
MyFragment fragment = new MyFragment();
fragmentTransaction.add(R.id.container, fragment);
fragmentTransaction.commit();
}
}
MyFragment.class
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
public class MyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_sandbox, container, false);
Button button = (Button) v.findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
PagerDialog dialog = new PagerDialog(getActivity(),
getChildFragmentManager());
dialog.show();
}
});
return v;
}
}
PagerDialog.class
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
public class PagerDialog extends Dialog {
ViewPager mViewPager;
FragmentStatePagerAdapter mAdapter;
FragmentManager mFragmentManager;
public PagerDialog(Context context, FragmentManager fm) {
super(context);
mFragmentManager = fm;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dialog);
mViewPager = (ViewPager) findViewById(R.id.pager);
mAdapter = new MyAdapter(mFragmentManager);
mViewPager.setAdapter(mAdapter);
}
private class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int index) {
return new DummyFragment();
}
@Override
public int getCount() {
return 2;
}
}
private class DummyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_dummy_layout,
container, false);
return v;
}
}
}
Here is the dialog.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
Here is the error
03-06 19:43:38.487: E/AndroidRuntime(1167): FATAL EXCEPTION: main
03-06 19:43:38.487: E/AndroidRuntime(1167): Process: com.me.sandbox, PID: 1167
03-06 19:43:38.487: E/AndroidRuntime(1167): java.lang.IllegalArgumentException: No view found for id 0x7f05003d (com.mochimira.sandbox:id/pager) for fragment DummyFragment{b2d9f8c8 #0 id=0x7f05003d}
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:939)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1126)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1489)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:486)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.app.FragmentStatePagerAdapter.finishUpdate(FragmentStatePagerAdapter.java:163)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.view.ViewPager.populate(ViewPager.java:1073)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.view.ViewPager.populate(ViewPager.java:919)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.View.measure(View.java:16497)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.View.measure(View.java:16497)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.View.measure(View.java:16497)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.View.measure(View.java:16497)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.View.measure(View.java:16497)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
03-06 19:43:38.487: E/AndroidRuntime(1167): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.View.measure(View.java:16497)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.Choreographer.doFrame(Choreographer.java:544)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.os.Handler.handleCallback(Handler.java:733)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.os.Handler.dispatchMessage(Handler.java:95)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.os.Looper.loop(Looper.java:136)
03-06 19:43:38.487: E/AndroidRuntime(1167): at android.app.ActivityThread.main(ActivityThread.java:5017)
03-06 19:43:38.487: E/AndroidRuntime(1167): at java.lang.reflect.Method.invokeNative(Native Method)
03-06 19:43:38.487: E/AndroidRuntime(1167): at java.lang.reflect.Method.invoke(Method.java:515)
03-06 19:43:38.487: E/AndroidRuntime(1167): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
03-06 19:43:38.487: E/AndroidRuntime(1167): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
03-06 19:43:38.487: E/AndroidRuntime(1167): at dalvik.system.NativeStart.main(Native Method回答1:
I have found a solution to the problem and have modified your classes so that this error no longer occurs.
The only major difference was that you should use a DialogFragment instead of a Dialog, that way you have access to call getChildFragmentManager() and receive the correct FragmentManager from the DialogFragment.
Even though you were using getChildFragmentManager() before, it was coming from MyFragment and the PagerDialog class was not a child fragment in MyFragment.
I have tested the code below, and it should be working fine now.
MyFragment
public class MyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_sandbox, container, false);
Button button = (Button) v.findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
DialogFragment newFragment = PagerDialog.newInstance();
newFragment.show(getChildFragmentManager(), "dialog");
}
});
return v;
}
}
PagerDialog
public class PagerDialog extends DialogFragment {
public static PagerDialog newInstance() {
return new PagerDialog();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.dialog_fragment, container, false);
ViewPager mViewPager = (ViewPager) v.findViewById(R.id.view_pager);
/* Use childFragmentManager here provided from the PagerDialog */
MyAdapter mAdapter = new MyAdapter(getChildFragmentManager());
mViewPager.setAdapter(mAdapter);
return v;
}
private class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int index) {
return new DummyFragment();
}
@Override
public int getCount() {
return 2;
}
}
}
DummyFragment
public class DummyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_dummy_layout, container, false);
return v;
}
}
fragment_sandbox.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Test Fragment Dialog Pager"
android:textSize="24sp"
android:padding="20dp" />
</LinearLayout>
dialog_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Fragment Dialog Title Text "
android:padding="10dp"
android:textColor="#333"
android:textSize="24sp"/>
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="200dp"/>
</LinearLayout>
fragment_dummy_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Fragment Dummy Text"
android:textSize="24sp"
android:textColor="#ff0000"/>
</LinearLayout>
回答2:
I found in Google a blog post, it says that viewpager doesn't work on Dialog. It also says we should use DialogFragment instead.
Here is the link to that blog: http://www.intellicode.in/viewpager-inside-dialog/
回答3:
getChildFragmentManager() is available since API 17 while you're using the v4 support library. Try using the support fragment manager instead:
PagerDialog dialog = new PagerDialog(getActivity(),
getActivity().getSupportFragmentManager());
回答4:
The Dialog class is the base class for dialogs, but you should avoid instantiating Dialog directly. Instead, use one of the following subclasses:
AlertDialogA dialog that can show a title, up to three buttons, a list of selectable items, or a custom layout. And also DatePickerDialog or TimePickerDialog.
These classes define the style and structure for your dialog, but you should use a DialogFragment as a container for your dialog. The DialogFragment class provides all the controls you need to create your dialog and manage its appearance, instead of calling methods on the Dialog object.
For more detail please go through Dialog Design
回答5:
The error sounds like it's looking for the id pager in the xml file for DummyFragment (fragment_dummy_layout.xml). I wonder if this is due to calling View v = inflater.inflate(R.layout.fragment_dummy_layout, container, false); in the same file as setContentView(R.layout.dialog);. Have you tried separating DummyFragment into it's own file?
You could also try
View v = getActivity().getLayoutInflater().inflate(R.layout.fragment_dummy_layout,
container, false);
回答6:
Try using DialogFragment and pass getChildFragmentManager() to your FragmentPagerAdapter's constructor.
DialogFragment:
public static class MyDialogFragment extends DialogFragment {
private ViewPager viewPager;
MySectionPagerAdapter mAdapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.m_layout, container);
viewPager = (ViewPager) view.findViewById(R.id.viewpager);
mAdapter = new MySectionPagerAdapter(getChildFragmentManager());
viewPager.setAdapter(mAdapter);
return view;
}
}
回答7:
so far, we can't figure out why there is an error, but I have a way to work around this, using this tip:
Tip: If you want a custom dialog, you can instead display an Activity as a dialog instead of using the Dialog APIs. Simply create an activity and set its theme to Theme.Holo.Dialog in the manifest element:
<activity android:theme="@android:style/Theme.Holo.Dialog"
Based on this tip, I don't make PagerDialog extend Dialog but from Fragment. And then put this Fragment inside an Activity , set the theme of this activity as above in AndroidManifest.xml.
The updated code for the PagerDialog is as followed.
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class PagerDialog extends Fragment {
ViewPager mViewPager;
FragmentStatePagerAdapter mAdapter;
@Override
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.id.dialog, container, false);
mViewPager = (ViewPager) v.findViewById(R.id.pager);
mAdapter = new MyAdapter(getFragmentManager());
mViewPager.setAdapter(mAdapter);
return v;
}
private class MyAdapter extends FragmentStatePagerAdapter {
public MyAdapter(FragmentManager fm) {
super(fm);
}
@Override
public Fragment getItem(int index) {
return new DummyFragment();
}
@Override
public int getCount() {
return 2;
}
}
private class DummyFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_dummy_layout,
container, false);
return v;
}
}
}
If you have any better solutions or you can find out why the original code in my question does not work, please teach me. I am a newbie in Android programing and I am happy to learn from you all.
Cheers.
回答8:
I think you used
Dialog dialog = new Dialog(context);
Instends this.
1st Step: Used DialogFragment
public class MyCustomDialog extends DialogFragment {
Button mButton;
EditText mEditText;
List<MasterPageModel> listdata;
int position;
ViewPager viewpager;
public MyCustomDialog(List<MasterPageModel> listdata, int position) {
this.listdata = listdata;
this.position = position;
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View dialog = inflater.inflate(R.layout.dailoglayout, container);
final Dialog dailog = getDialog();
dailog.getWindow().setLayout(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
dailog.getWindow().requestFeature(Window.FEATURE_NO_TITLE);
dailog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
ImageView closebtn = (ImageView) dialog.findViewById(R.id.closeimgeview);
closebtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dailog.dismiss();
}
});
viewpager = (ViewPager) dialog.findViewById(R.id.dailog_viewpager);
**viewpager.setAdapter(new PagerAdapter(getChildFragmentManager(), listdata));** //This Line is Very important
viewpager.setCurrentItem(position);
return dialog;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Black_NoTitleBar_Fullscreen); //For Full Screen of DailogBox
}
}
2nd Step :set The FragmentViewPager
public class PagerAdapter extends FragmentPagerAdapter {
private final List<MasterPageModel> pages;
public PagerAdapter(FragmentManager fm, List<MasterPageModel> pages) {
super(fm);
this.pages = pages;
}
@Override
public Fragment getItem(int position) {
return new ViewPagerFragment(pages.get(position));
}
@Override
public int getCount() {
return pages.size();
}
}
3rd Step : Fragment View For ViewPager:
public class ViewPagerFragment extends Fragment {
MasterPageModel masteDetailModel;
public ViewPagerFragment(MasterPageModel questionItem) {
this.masteDetailModel = questionItem;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.pagerlayout, container, false);
ImageView image = (ImageView) v.findViewById(R.id.pager_imageview);
Log.i("Image", "=>" + masteDetailModel.imagelarge);
Picasso.with(getActivity()).load(masteDetailModel.imagethumb).error(R.drawable.img).into(image);
return v;
}
4th How to Use this dialogfragment:
MyCustomDialog fragment1 = new MyCustomDialog(listdata, position);
EditionDetailActivity act = (EditionDetailActivity) context;
FragmentManager fm = act.getSupportFragmentManager();
fragment1.show(fm, "");
来源：https://stackoverflow.com/questions/28858356/fragments-in-viewpager-no-view-found-error