android.view.InflateException: Binary XML file lin

问题:

I found similar topics in stackoverflow but it didn't help for me. I am showing google map using fragment and it crashes after get another fragment and come back. In other words, google map shows only once and crashes. Here are the codes.

public class MapTabMainFragment extends BaseFragment {
    private AdView adView;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {

        View view = null;
        try {
            view = inflater.inflate(R.layout.fragment_map_main, container,
                    false);
        } catch (Exception e) {
            e.printStackTrace();
        }

        initComponents(view);
        initValues();
        initListeners();

        return view;
    }

    public void initComponents(View view) {
        adView = (AdView) view.findViewById(R.id.adView1);
    }

    public void initValues() {
        AdRequest re = new AdRequest();
        adView.loadAd(re);
    }

    public void initListeners() {

    }
}

 public class BaseFragment extends Fragment {

    public BottomTabActivity mActivity;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mActivity = (BottomTabActivity) this.getActivity();
    }

    public boolean onBackPressed() {
        return false;
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {

    }
}

when I try to catch the exception, it is

android.view.InflateException: Binary XML file line #20: Error inflating class fragment.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/lib/com.google.ads"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/WhiteColor"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:src="@drawable/header" />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="@dimen/data_listview_margin_top" >

        <fragment
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/map"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginBottom="@dimen/data_listview_margin_bottom"
            class="com.google.android.gms.maps.SupportMapFragment" />
        <!--class="com.cyrilmottier.polaris2.maps.SupportMapFragment"  -->

        <com.google.ads.AdView
            android:id="@+id/adView1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            app:adSize="SMART_BANNER"
            app:adUnitId="ca-app-pub-9766031373541061/3761995838"
            app:loadAdOnCreate="true"
            app:testDevices="TEST_EMULATOR, TEST_DEVICE_ID" >
        </com.google.ads.AdView>
    </RelativeLayout>

</LinearLayout>

回答1:

You cannot have nested fragments in XML. You should do it in code. The best way is to create a FrameLayout, and replace it with your fragment at run-time.

Suppose the XML is as follows:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/inquiryLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".InquiryFragment" >

<FrameLayout
    android:id="@+id/contentFrame"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true" >

</FrameLayout>
 </RelativeLayout>

Now the code is simple:

public class InquiryFragment extends Fragment {

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View v = inflater.inflate(R.layout.inquiry_fragment, container, false);

        Plan1Fragment frag = new Plan1Fragment();
        getChildFragmentManager().beginTransaction()
            .replace(R.id.contentFrame, frag).commit();

        return v;
    }

}

And that's it.

回答2:

I've solved it myself after research on stackoverflow. It's something related with nested fragment issues. I removed map fragment in xml and placed frame for it and then add fragment programmatically. it works like a charm. Thanks for your all efforts.

回答3:

// try this way

public class MapTabMainFragment extends FragmentActivity {

    private AdView adView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_map_main);
        adView = (AdView) findViewById(R.id.adView1);
        AdRequest re = new AdRequest();
        adView.loadAd(re);

    }

}

回答4:

You are trying to access the Activity before it's actually created in your BaseFragment class...

mActivity = (BottomTabActivity) this.getActivity();

Instead, override the "onActivityCreated" method and do it there...

@Override
public void onActivityCreated(Bundle savedInstanceState)
{
    mActivity = (BottomTabActivity) this.getActivity();
}

回答5:

Edit your application's AndroidManifest.xml file, and add the following declaration within the element. This embeds the version of Google Play services that the app was compiled with.

<meta-data
    android:name="com.google.android.gms.version"
    android:value="@integer/google_play_services_version" />

->this solves mine.

回答6:

Instead of putting xmlns:android="http://schemas.android.com/apk/res/android" in the Linear Layout tag, put it in <com.google.android.gms.ads.AdView tag. as shown below:

 <com.google.android.gms.ads.AdView 
        xmlns:ads="http://schemas.android.com/apk/res-auto"
        android:id="@+id/adView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        app:adSize="SMART_BANNER"
        app:adUnitId="ca-app-pub-9766031373541061/3761995838"
        app:loadAdOnCreate="true"
        app:testDevices="TEST_EMULATOR, TEST_DEVICE_ID" />

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