viewpager中的片段，找不到视图错误

时间：2015-03-04 15:31:19

标签： java android android-viewpager fragment android-nested-fragment

我有一个活动持有一个片段，在这个片段中有一个按钮，当它被点击时，会弹出一个对话框。

在此对话框中，有一个Viewpager，它包含一些要显示的片段。

以下是代码和错误，请花费宝贵的时间向我展示我的错误。非常感谢你的帮助。

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;
    }
}
}

这是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>

这是错误

＆＃13;
＆＃13; 
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
＆＃13;
＆＃13;
＆＃13;

8 个答案:

答案 0 :(得分：14)

我找到了问题的解决方案，并修改了您的类，以便不再出现此错误。

唯一的主要区别是您应该使用DialogFragment代替Dialog，这样您就可以调用getChildFragmentManager()并从中接收正确的FragmentManager DialogFragment。

即使您之前使用的是getChildFragmentManager()，但它来自MyFragment且PagerDialog类不是MyFragment中的子片段。

我已经测试了下面的代码，它现在应该正常工作。

<强> 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;
    }
}

<强> 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;
        }

    }
}

<强> 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;
    }

}

<强> 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>

<强> 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>

<强> 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>

答案 1 :(得分：1)

我在谷歌发现了一篇博文，它说viewpager不适用于Dialog。 它还说我们应该使用DialogFragment。

以下是该博客的链接：http://www.intellicode.in/viewpager-inside-dialog/

答案 2 :(得分：1)

当您使用v4支持库时，

getChildFragmentManager()自API 17开始提供。请尝试使用支持片段管理器：

PagerDialog dialog = new PagerDialog(getActivity(),
        getActivity().getSupportFragmentManager());

答案 3 :(得分：1)

  

Dialog类是对话框的基类，但您应该避免直接实例化Dialog。而是使用以下子类之一：

     

AlertDialogA对话框，可显示标题，最多三个按钮，可选项列表或自定义布局。还有DatePickerDialog或TimePickerDialog。

     

这些类定义对话框的样式和结构，但您应该使用 DialogFragment 作为对话框的容器。 DialogFragment 类提供了创建对话框和管理其外观所需的所有控件，而不是调用Dialog对象上的方法。

有关详情，请浏览Dialog Design

答案 4 :(得分：1)

该错误听起来像是在DummyFragment（fragment_dummy_layout.xml）的xml文件中查找id寻呼机。我想知道这是否是由于在View v = inflater.inflate(R.layout.fragment_dummy_layout, container, false);的同一个文件中调用setContentView(R.layout.dialog);。你有没有尝试将DummyFragment分成它自己的文件？

您也可以尝试

View v = getActivity().getLayoutInflater().inflate(R.layout.fragment_dummy_layout, 
        container, false);

答案 5 :(得分：1)

尝试使用DialogFragment并将 getChildFragmentManager（）传递给 FragmentPagerAdapter 构造函数。

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;
    }


}

答案 6 :(得分：0)

到目前为止，我们无法弄清楚为什么会出现错误，但我有办法解决这个问题，使用此技巧：

提示：如果需要自定义对话框，则可以将“活动”显示为对话框，而不是使用“对话框API”。只需创建一个活动并将其主题设置为清单元素中的Theme.Holo.Dialog： 

<activity android:theme="@android:style/Theme.Holo.Dialog"

基于这个提示，我不会使PagerDialog扩展Dialog，而是来自Fragment。然后将此Fragment放入Activity中，在AndroidManifest.xml中设置此活动的主题如上所述。

PagerDialog的更新代码如下：

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;
    }
}
}

如果你有更好的解决方案，或者你可以找出为什么我的问题中的原始代码不起作用，请教我。我是Android编程的新手，我很高兴向大家学习。

干杯。

答案 7 :(得分：0)

我认为你用过

Dialog dialog = new Dialog(context);

介绍这一点。

第1步：使用 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
    }

}

第二步：设置 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();
    }
}

第3步： ViewPager的片段视图：

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;
    }

第4页如何使用对话框：

 MyCustomDialog fragment1 = new MyCustomDialog(listdata, position);
                EditionDetailActivity act = (EditionDetailActivity) context;
                FragmentManager fm = act.getSupportFragmentManager();
                fragment1.show(fm, "");
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