Question

以下是Java代码

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

        View rootView = inflater.inflate(R.layout.activity_create_report, container, false);
        activity = getActivity();


        Spinner spinner = (Spinner) rootView.findViewById(R.id.spinnerComplaintType);
        ArrayAdapter<String> adapterComplaint = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1, R.array.complaintType);
        adapterComplaint.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
        spinner.setAdapter(adapterComplaint);

        spinnerComplaintType.setOnItemSelectedListener(new OnItemSelectedListener() {

            @Override
            public void onItemSelected(AdapterView<?> parent, View arg1,
                    int position, long arg3) {
                // TODO Auto-generated method stub
                complaintType = parent.getItemAtPosition(position).toString();
            //  Toast.makeText(getApplicationContext(), complaintType, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected(AdapterView<?> arg0) {
                // TODO Auto-generated method stub

            }
        });


        return rootView;
    }

这是XML

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
     >

      <RelativeLayout
          android:layout_width="fill_parent"
          android:layout_height="833dp" >

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/textView1"
        android:layout_marginLeft="24dp"
        android:layout_marginTop="54dp"
        android:text="Complaint Type: "
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView2"
        android:layout_below="@+id/spinnerComplaintType"
        android:layout_marginTop="15dp"
        android:text="Vehicle Type"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <Spinner
        android:id="@+id/spinnerVehicleType"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/textView3"
        android:layout_toRightOf="@+id/textView2" 
        android:textColor="#000000" />

    <TextView
        android:id="@+id/textView4"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView3"
        android:layout_below="@+id/spinnerVehicleType"
        android:layout_marginTop="21dp"
        android:text="Body No:"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText
        android:id="@+id/editTextBodyNo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/textView4"
        android:layout_centerHorizontal="true"
        android:ems="10" >

       <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/editTextPlate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editTextBodyNo"
        android:layout_alignTop="@+id/textView5"
        android:ems="10" />

    <EditText
        android:id="@+id/editTextDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editTextLocation"
        android:layout_alignTop="@+id/textView7"
        android:ems="10" />

    <EditText
        android:id="@+id/editTextComplaintDetails"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editTextDate"
        android:layout_alignTop="@+id/textView8"
        android:ems="10"
        android:inputType="textMultiLine" />

    <TextView
        android:id="@+id/textView6"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignRight="@+id/textView5"
        android:layout_below="@+id/textView5"
        android:layout_marginTop="58dp"
        android:text="Location"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView5"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView4"
        android:layout_below="@+id/textView4"
        android:layout_marginTop="55dp"
        android:text="Plate No:"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView7"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView5"
        android:layout_below="@+id/editTextLocation"
        android:layout_marginTop="30dp"
        android:text="Date of Incident"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView
        android:id="@+id/textView8"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView7"
        android:layout_below="@+id/editTextDate"
        android:layout_marginTop="28dp"
        android:text="Complaint Details"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <EditText
        android:id="@+id/editTextLocation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editTextPlate"
        android:layout_alignTop="@+id/textView6"
        android:ems="10" />

    <ImageView
        android:id="@+id/imageViewPhotoReport"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/buttonCamera"
        android:layout_below="@+id/buttonCamera"
        android:src="@drawable/about" 
        android:visibility="invisible"/>

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView6"
        android:layout_alignParentTop="true"
        android:layout_marginTop="60dp"
        android:text="File Complaint"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button
        android:id="@+id/buttonCamera"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/buttonSend"
        android:layout_toLeftOf="@+id/spinnerVehicleType"

        android:text="Take Photo" />

    <Button
        android:id="@+id/buttonSend"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editTextComplaintDetails"
        android:layout_marginTop="48dp"
        android:layout_toRightOf="@+id/textView1"

        android:text="SEND" />

    <Button
        android:id="@+id/buttonDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editTextComplaintDetails"
        android:layout_below="@+id/editTextComplaintDetails"
        android:layout_marginTop="20dp"
        android:text="pick date" />

    <Spinner
        android:id="@+id/spinnerComplaintType"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignTop="@+id/textView1"
        android:layout_toRightOf="@+id/textView3"
        android:textColor="#000000" />

</RelativeLayout>
</ScrollView>

这是错误 记录跟踪

01-04 21:18:36.513: E/AndroidRuntime(3772): FATAL EXCEPTION: main
01-04 21:18:36.513: E/AndroidRuntime(3772): java.lang.ClassCastException: android.widget.TextView cannot be cast to android.widget.Spinner
01-04 21:18:36.513: E/AndroidRuntime(3772):     at info.androidhive.slidingmenu.CreateReportFragment.onCreateView(CreateReportFragment.java:31)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:830)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1034)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.app.BackStackRecord.run(BackStackRecord.java:622)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1384)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.app.FragmentManagerImpl$1.run(FragmentManager.java:428)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.os.Handler.handleCallback(Handler.java:605)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.os.Handler.dispatchMessage(Handler.java:92)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.os.Looper.loop(Looper.java:154)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at android.app.ActivityThread.main(ActivityThread.java:4945)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at java.lang.reflect.Method.invokeNative(Native Method)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at java.lang.reflect.Method.invoke(Method.java:511)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
01-04 21:18:36.513: E/AndroidRuntime(3772):     at dalvik.system.NativeStart.main(Native Method)

所以我能够在一个活动中使 Spinner 工作，但是当我将代码转移到片段时，它显然没有＆＃39; t work。

我认为错误来自Spinner的Instatiation。

Answer 1

将此选项用于 TextView 和 Spinner 。

    <Spinner
        android:id="@+id/spinnerComplaintType"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_marginTop="54dp"
        android:layout_toRightOf="@+id/buttonSend"
        android:textColor="#000000" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/textView3"
        android:layout_alignTop="@+id/spinnerComplaintType"
        android:layout_marginTop="17dp"
        android:text="File Complaint"
        android:textAppearance="?android:attr/textAppearanceLarge" />

同时更改

     android.R.layout.simple_spinner_item

而不是

     android.R.layout.simple_list_item_1

数组适配器中的

。

更新：

   ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(getActivity(),
            R.array.complaintType, android.R.layout.simple_spinner_item);

Fragment Spinner不工作

1 个答案: