动态片段问题

Question

好吧，我问了一个问题，得到了90％的答复，我需要解决剩下的10％。

它基本上是一个事件页面，因此单击StackView上的所选项目，会打开另一个片段，其中包含2个textViews和1个imageView，所有这些页面（超过10个）都是对称的，所以我决定使其动态化，因此它很容易处理和处理。

EventsFragment

   public class EventsFragment extends android.support.v4.app.Fragment {
    private StackView stackView;
    private ArrayList<Stack_Items> list;
    TypedArray eventLogo;
    String eventName[],eventDesc[];

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

        eventLogo = getResources().obtainTypedArray(R.array.event_stack_icon);
        eventName = getResources().getStringArray(R.array.event_stack);
        eventDesc = getResources().getStringArray(R.array.event_desc_stack);
        View view = inflater.inflate(R.layout.events_layout, null);
        stackView = (StackView) view.findViewById(R.id.stackView1);
        list = new ArrayList<Stack_Items>();

        //Adding items to the list
        for (int i = 0; i < eventLogo.length(); i++) {
            list.add(new Stack_Items(eventName[i], eventLogo.getResourceId(i, -1)));
        }
        //Calling adapter and setting it over stackView
        Stack_Adapter adapter = new Stack_Adapter(getActivity().getApplicationContext(), list);
        stackView.setAdapter(adapter);
        stackView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> a, View
                    view, int position, long id) {
                MainActivity mainActivity = (MainActivity) getActivity();
                FragmentTransaction fragmentTransaction = mainActivity.getSupportFragmentManager().beginTransaction();
                Fragment eventDescFragment = new DynamicEventsPage().newInstance(R.array.event_stack,R.array.event_desc_stack,eventLogo.getResourceId(position, -1));
                fragmentTransaction.replace(R.id.containerView, eventDescFragment);
                fragmentTransaction.commit();
            }
        });
        adapter.notifyDataSetChanged();
        return view;
    }
}

DynamicEventPage

public class DynamicEventsPage extends Fragment{
    public static final String BUNDLE_STRING_KEY = "BUNDLE_STRING_KEY";
    public static final String BUNDLE_DRAWABLE_KEY = "BUNDLE_DRAWABLE_KEY";
    public static final String BUNDLE_STRING_DESC_KEY = "BUNDLE_STRING_DESC_KEY";

    public static Fragment newInstance(final int stringId,final int descStringId, final int drawableId) {
        Bundle bundle = new Bundle();
        bundle.putInt(BUNDLE_STRING_KEY, stringId);
        bundle.putInt(BUNDLE_DRAWABLE_KEY, drawableId);
        bundle.putInt(BUNDLE_STRING_DESC_KEY,descStringId);
        Fragment fragment = new DynamicEventsPage();
        fragment.setArguments(bundle);
        return fragment;
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.dynamic_events_page, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        Bundle bundle = getArguments();
        ((ImageView)view.findViewById(R.id.imageView)).setImageResource(bundle.getInt(BUNDLE_DRAWABLE_KEY));
        ((TextView)view.findViewById(R.id.textView)).setText(bundle.getInt(BUNDLE_STRING_KEY));
        ((TextView)view.findViewById(R.id.textViewdesc)).setText(bundle.getInt(BUNDLE_STRING_DESC_KEY));
    }

}

dynamic_events_page.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:weightSum="1">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="Medium Text"
        android:id="@+id/textView"
        android:layout_weight="0.40" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:id="@+id/textViewdesc"
        android:layout_weight="0.40" />

    <ImageView
        android:layout_width="228dp"
        android:layout_height="wrap_content"
        android:id="@+id/imageView"
        android:layout_weight="0.40" />

</LinearLayout>

错误是

E/AndroidRuntime: android.content.res.Resources$NotFoundException: String resource ID #0x7f0b0001

E/AndroidRuntime:     at package.DynamicEventsPage.onViewCreated(DynamicEventsPage.java:39)

那么解决方法是什么？

Answer 1

将newInstance更改为String而不是int

public static Fragment newInstance(final String eventName,final String eventDescr, final int drawableId) {
        Bundle bundle = new Bundle();
        bundle.putString(BUNDLE_STRING_KEY, stringId);
        bundle.putInt(BUNDLE_DRAWABLE_KEY, drawableId);
        bundle.putString(BUNDLE_STRING_DESC_KEY,descStringId);
        Fragment fragment = new DynamicEventsPage();
        fragment.setArguments(bundle);
        return fragment;
}

和onViewCreate读取String而不是int

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    Bundle bundle = getArguments();
    ((ImageView)view.findViewById(R.id.imageView)).setImageResource(bundle.getInt(BUNDLE_DRAWABLE_KEY));
    ((TextView)view.findViewById(R.id.textView)).setText(bundle.getString(BUNDLE_STRING_KEY));
    ((TextView)view.findViewById(R.id.textViewdesc)).setText(bundle.getString(BUNDLE_STRING_DESC_KEY));
}

在onItemClick中更改

Fragment eventDescFragment = new DynamicEventsPage().newInstance(R.array.event_stack,R.array.event_desc_stack,eventLogo.getResourceId(position, -1));

同

String name = (position < eventName.length) ? eventName[position] : "";
String description = (position < eventDesc.length) ? eventDesc[position] : "";
Fragment eventDescFragment = DynamicEventsPage.newInstance(eventName, description,eventLogo.getResourceId(position, -1));

Answer 2

错误消息显示

Resources $ NotFoundException：字符串资源ID＃0x7f0b0001

这意味着您正在尝试引用strings.xml文件中不存在的某些字符串变量。

希望对您有所帮助。

Answer 3

您正在将图像视图的文本分配给字符串R.array.somearray的数组，这是错误的。 您应该将其分配给String资源R.string.somestring 。

片段初始化中有其他错误。 它应该是

Fragment eventDescFragment = DynamicEventsPage.newInstance(R.string.event_stack,R.string.event_desc_stack,eventLogo.getResourceId(position, -1));

您拥有的方式是初始化一个新的Fragment并保留它，然后在静态newInstance方法上初始化一个新的Fragment。