我在类公共类中有一个例外ArticleFragment extends Fragment我得到了这个问题，但我不知道什么是错的，或者我得到了null spinner我不知道为什么或什么是争吵：
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
if (savedInstanceState != null) {
mCurrentPosition = savedInstanceState.getInt(ARG_POSITION);
}
getActivity().setContentView(R.layout.article_view);
e=new ArrayList<String>();
//dobime ime kategorije
// this.category = getIntent().getStringExtra("category");
// dobimo enoto
category="kot";
this.enote = EnoteUpravljalec.getUnits(this.category, getActivity(), 1);
String[] unitNames = new String[this.enote.size()];
for (int i = 0; i < this.enote.size(); i++)
unitNames[i] = enote.get(i).getLocalizedName();
enoteAdapter = new ArrayAdapter(getActivity(), android.R.layout.simple_spinner_item, unitNames);
enoteAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
inputSpinner = (Spinner) getActivity().findViewById(R.id.unitInput1);
outputSpinner = (Spinner) getActivity().findViewById(R.id.unitInput2);
try{
inputSpinner.setAdapter(enoteAdapter);
outputSpinner.setAdapter(enoteAdapter);
inputSpinner.setOnItemSelectedListener(this);
outputSpinner.setOnItemSelectedListener(this);
EditText edit_text = (EditText)getActivity().findViewById(R.id.enotaVrednost);
edit_text.addTextChangedListener(this);
this.inputValid = false;
setConversionOutput("");
}catch(Exception ex){}
this.unitInputIndex1 = -1;
this.unitInputIndex2 = -1;
this.inputRate1 = -1.0;
this.inputRate2 = -1.0;
// If activity recreated (such as from screen rotate), restore
// the previous article selection set by onSaveInstanceState().
// This is primarily necessary when in the two-pane layout.
// Inflate the layout for this fragment
return getView();
}
文章观点：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollView">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="24dp"
android:text="@+string/from_currency_amount_label"
android:textSize="20sp"
android:layout_gravity="left"/>
<EditText
android:id="@+id/currency_converter_edit_text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="25dp"
android:padding="12dp"
android:inputType="number|numberSigned|numberDecimal" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@+string/from_currency_label"
android:textSize="20sp"
android:layout_gravity="left"
/>
<Spinner
android:id="@+id/from_currency_spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="12dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@+string/to_currency_label"
android:textSize="20sp"
android:layout_gravity="left"
/>
<Spinner
android:id="@+id/to_currency_spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="12dp"
/>
<TextView
android:id="@+id/currency_conversion_output"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text=""
android:textSize="25sp"
android:padding="12dp"
android:paddingBottom="12dp"/>
<TextView
android:id="@+id/last_updated"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text=""
android:textSize="18sp"
android:padding="12dp"
android:paddingBottom="12dp"/>
</LinearLayout>
</ScrollView>
</LinearLayout>
异常
08-24 11:48:05.621: E/AndroidRuntime(32489): FATAL EXCEPTION: main
08-24 11:48:05.621: E/AndroidRuntime(32489): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.calculator.mycalculator/com.Converter.myConverter.Unit.EnotaMainHendler}: android.view.InflateException: Binary XML file line #29: Error inflating class fragment
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.ActivityThread.access$600(ActivityThread.java:141)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.os.Handler.dispatchMessage(Handler.java:99)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.os.Looper.loop(Looper.java:137)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.ActivityThread.main(ActivityThread.java:5041)
08-24 11:48:05.621: E/AndroidRuntime(32489): at java.lang.reflect.Method.invokeNative(Native Method)
08-24 11:48:05.621: E/AndroidRuntime(32489): at java.lang.reflect.Method.invoke(Method.java:511)
08-24 11:48:05.621: E/AndroidRuntime(32489): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
08-24 11:48:05.621: E/AndroidRuntime(32489): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
08-24 11:48:05.621: E/AndroidRuntime(32489): at dalvik.system.NativeStart.main(Native Method)
08-24 11:48:05.621: E/AndroidRuntime(32489): Caused by: android.view.InflateException: Binary XML file line #29: Error inflating class fragment
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
08-24 11:48:05.621: E/AndroidRuntime(32489): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.Activity.setContentView(Activity.java:1881)
08-24 11:48:05.621: E/AndroidRuntime(32489): at com.Converter.myConverter.Unit.EnotaMainHendler.onCreate(EnotaMainHendler.java:21)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.Activity.performCreate(Activity.java:5104)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
08-24 11:48:05.621: E/AndroidRuntime(32489): ... 11 more
08-24 11:48:05.621: E/AndroidRuntime(32489): Caused by: java.lang.IllegalStateException: Fragment com.Converter.myConverter.Unit.ArticleFragment did not create a view.
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:315)
08-24 11:48:05.621: E/AndroidRuntime(32489): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:676)
08-24 11:48:05.621: E/AndroidRuntime(32489): ... 21 more
答案 0 :(得分：0)
在onCreateView中，您尝试返回getView()。这是不可能的，因为您尚未设置片段的视图。您可能需要做的事情如下：
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
v = inflater.inflate(R.layout.resturantmenu, container, false);
// Do your view initialization here using v.findViewById()
// Remember that you cannot reuse the views that are used in the activity already
return v;
}
答案 1 :(得分：0)
对片段进行膨胀并在其中查找视图的正确方法如下：
public class HomeFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
//To find a TextView (for example) from the inflated layout, you would do this:
TextView text = (TextView) rootView.findViewById(R.id.myTextView);
return rootView;
}
}
此外，片段应始终独立于其活动，因为您永远不应从片段中的活动中访问内容。