在Android中单击下拉菜单时，带有客户适配器的微调器将引发Resources $ NotFoundException [英] Spinner with customer adapter throwing Resources$NotFoundException when dropdown is clicked in Android

问题描述

我正在开发一个Android应用程序.在我的应用中，我正在使用微调视图.但是我正在使用带有自定义适配器的微调器视图，因为带有微调器的微调器将很快变得更加复杂. Spinner的所有数据都来自服务器，但来自排球.我的带有客户适配器的微调器视图正确显示了数据.但是问题是当我单击下拉列表选择项目时.它引发异常.

I am developing an Android app. In my app, I am working with spinner view. But I am using spinner view with custom adapter because my spinner with will be more complicated soon. All the data for spinner come from server through volley. My spinner view with customer adapter is showing the data properly. But the problem is when I click the dropdown to choose item. It throws exception.

这是我的用于微调器视图的客户适配器:

This is my customer adapter for spinner view:

public class SpinnerItemAdapter extends ArrayAdapter<NVItem> {
    private ArrayList<NVItem> values;
    private Context context;
    private ArrayList<String> selectedValues;

    static class ViewHolder{
        public RadioButton radioButton;
        public TextView title;
    }

    public SpinnerItemAdapter(Context contextParam,ArrayList<NVItem> itemsParam,ArrayList<String> selectedParam)
    {
        super(contextParam,-1,itemsParam);
        this.values = itemsParam;
        this.context = contextParam;
        this.selectedValues = selectedParam;
    }

    @Override
    public View getView(final int position,View convertView,ViewGroup parent)
    {
        View rowView = convertView;
        final ViewHolder viewHolder;
        if(rowView==null)
        {
            LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            rowView = layoutInflater.inflate(R.layout.spinner_item,null);

            viewHolder = new ViewHolder();
            viewHolder.radioButton = (RadioButton)rowView.findViewById(R.id.spinner_item_radio);
            viewHolder.title = (TextView)rowView.findViewById(R.id.spinner_item_title);
            rowView.setTag(viewHolder);
        }
        else{
            viewHolder  = (ViewHolder) rowView.getTag();
        }

        //rowView.setId(values.get(position).getId());
        viewHolder.title.setText(values.get(position).getName());
        return rowView;
    }

    @Override
    public int getCount() { return values.size(); }
    @Override
    public NVItem getItem(int position) { return values.get(position); }
    @Override
    public long getItemId(int position) { return position; }
}

这是我在Android中打开微调器对话框并在单击按钮时设置适配器的方式:

This is how I open spinner dialog and set adapter on button click in Android:

private void showCategorySpinner()
    {
        View view = layoutInflater.inflate(R.layout.choose_spinner,null);
        Spinner categorySpinner = (Spinner)view.findViewById(R.id.chooser_spinner);
        ArrayList<NVItem> items = new ArrayList<NVItem>();
        for(int i=0;i<categoryItems.size();i++)
        {
            NVItem item = new NVItem();
            item.setId(categoryItems.get(i).getId());
            item.setName(categoryItems.get(i).getName());
            items.add(item);
        }
        ArrayAdapter adapter = new SpinnerItemAdapter(getBaseContext(),items,new ArrayList<String>());
        categorySpinner.setAdapter(adapter);
        AlertDialog.Builder b = new AlertDialog.Builder(CreateItemActivity.this);
        b.setView(view);
        b.show();
    }

单击打开微调器对话框的按钮时，将调用上述功能.

Above function is called when button that open spinner dialog is clicked.

找到绑定到微调器和打开微调器对话框的所有数据.如下面的屏幕截图所示.但是，当单击屏幕快照中带圆圈的按钮时，它将引发错误.

All data binding to spinner and opening spinner dialog works find. As in the screenshot below. But it throws error when the button that is circled in the screenshot is clicked.

这是屏幕截图:

这是单击该下拉箭头时logcat中的错误:

This is the errors in logcat when that dropdown arrow is clicked:

03-17 22:26:37.925 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion W/EGL_genymotion: eglSurfaceAttrib not implemented
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion W/ResourceType: No known package when getting value for resource number 0xffffffff
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion D/AndroidRuntime: Shutting down VM
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0xa61c8908)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime: FATAL EXCEPTION: main
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime: android.content.res.Resources$NotFoundException: Resource ID #0xffffffff
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.content.res.Resources.getValue(Resources.java:1014)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.content.res.Resources.loadXmlResourceParser(Resources.java:2139)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.content.res.Resources.getLayout(Resources.java:853)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.view.LayoutInflater.inflate(LayoutInflater.java:394)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:371)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.ArrayAdapter.getDropDownView(ArrayAdapter.java:415)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.Spinner$DropDownAdapter.getDropDownView(Spinner.java:737)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.Spinner$DropDownAdapter.getView(Spinner.java:733)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.Spinner.measureContentWidth(Spinner.java:681)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.Spinner$DropdownPopup.show(Spinner.java:959)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.widget.Spinner.performClick(Spinner.java:609)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.view.View$PerformClick.run(View.java:17355)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.os.Handler.handleCallback(Handler.java:725)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.os.Handler.dispatchMessage(Handler.java:92)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.os.Looper.loop(Looper.java:137)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:5041)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at java.lang.reflect.Method.invokeNative(Native Method)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at java.lang.reflect.Method.invoke(Method.java:511)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
03-17 22:29:01.685 32568-32568/com.blog.waiyanhein.mmfashion.mmfashion E/AndroidRuntime:     at dalvik.system.NativeStart.main(Native Method)

我的代码有什么问题?

当我像这样更改Adapter的构造函数

When I change the constructor of Adapter like this

super(contextParam,R.layout.support_simple_spinner_dropdown_item,valuesParam);

列表项如下屏幕截图所示.

List items appear like below screenshot.

推荐答案

除了在适配器中实现getDropDownView()之外，无需更改适配器-

No need to change your adapter except to implement getDropDownView() in your adapter -

@Override
     public View getDropDownView(int position, View convertView,
             ViewGroup parent) {
      LayoutInflater inflater = getLayoutInflater(); 
      View dropDownView = inflater.inflate(R.layout.dropdown, parent, false);

      TextView view1 = (TextView)dropDownView.findViewById(<view_id>);
      view1.setText(values.get(position).getName());

      return dropDownView;

     }

其中R.layout.dropdown是下拉视图的布局xml，可以是任何UI-简单或复杂.

where R.layout.dropdown is the layout xml for the dropdown view.It can be any UI - simple or complex.

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