Question

我在这里看到了这个问题，但我找不到答案。

我的onClickListener在以下片段中不起作用。但它适用于其他片段。如果听众有任何错误或者我忘记了某些事情，我不会害羞。

public class StuffFragment extends Fragment {

public View rootview;
private TravelDataSource dataSource;
private StuffDataSource dataSource_stuff;

public StuffFragment() {
    // Required empty public constructor
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    rootview = inflater.inflate(R.layout.fragment_stuff, container, false);
    id = getID();
    getStuffList(id);
    showAllStuff(id)
    return rootview;
}

public void showAllStuff(long id) {
    ArrayList<Stuff> arrayOfStuff = dataSource_stuff.getStuffForList(id, "false");
    StuffAdapter adapter = new StuffAdapter(getContext(), arrayOfStuff);
    ListView listView = (ListView) rootview.findViewById(R.id.listviewStuffList);
    listView.setAdapter(adapter);
    /*Fix für die Höhe*/
    setListViewHeightBasedOnChildren(listView);

    /*OnClick Listener*/

    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            System.out.println("Knobb gedrückt");
        }
    });
}

布局xml文件

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
tools:context="de.christian_heinisch.packliste.StuffFragment"
android:orientation="vertical"
android:scrollbars="vertical"
android:nestedScrollingEnabled="true">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="@dimen/padding">

    <TextView
        android:text="Stadtname"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/textViewCityname"
        android:textAppearance="@android:style/TextAppearance.Material.Large"
        android:textColor="@color/colorHeadline"
        android:textSize="30sp" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:text="14.01.2017 - 21.01.2017"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textViewTravelDate"
            android:layout_weight="1" />

        <TextView
            android:text="TextView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/textView7"
            android:layout_weight="1" />
    </LinearLayout>

    <TextView
        android:text="Nicht vergessen"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/textView10" />

    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/listviewStuffList" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:focusableInTouchMode="true">

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Anzahl"
            android:inputType="number"
            android:id="@+id/editText_quantity"
            android:layout_weight="1" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Name"
            android:id="@+id/editText_product"
            android:layout_weight="4" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="+"
            android:id="@+id/button_add_product" />
    </LinearLayout>


    <TextView
        android:text="Muss noch gekauft werden"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/textView12" />

    <ListView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/listviewStuffBuy"
        android:fadingEdge="none"
        android:scrollbars="none" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:focusableInTouchMode="true">

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Anzahl"
            android:inputType="number"
            android:id="@+id/editText_quantity_buy"
            android:layout_weight="1" />

        <EditText
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:hint="Name"
            android:id="@+id/editText_product_buy"
            android:layout_weight="4" />

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="+"
            android:id="@+id/button_add_product_buy" />
    </LinearLayout>

</LinearLayout>
</ScrollView>

Answer 1

尝试代码：

public class StuffFragment extends Fragment {

public View rootview;
private ListView listView; 
private TravelDataSource dataSource;
private StuffDataSource dataSource_stuff;

public StuffFragment() {
    // Required empty public constructor
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
// Inflate the layout for this fragment
rootview = inflater.inflate(R.layout.fragment_stuff, container, false);
listView = (ListView) rootview.findViewById(R.id.listviewStuffList);
id = getID();
getStuffList(id);
showAllStuff(id)
return rootview;
}

public void showAllStuff (long id) {

ArrayList<Stuff> arrayOfStuff = null;
arrayOfStuff = dataSource_stuff.getStuffForList(id, "false");

StuffAdapter adapter = new StuffAdapter(getContext(), arrayOfStuff);

listView.setAdapter(adapter);
/*Fix für die Höhe*/
setListViewHeightBasedOnChildren(listView);

/*OnClick Listener*/

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        System.out.println("Knobb gedrückt");
    }
});

}

OnItemClickListener不适用于特定的片段

1 个答案: