Question

我在listfragment中有自定义适配器的列表视图，并为listview设置了onclicklistner。但Onclicklistner不起作用。

这是我的代码：

public class BasicFragment extends ListFragment {

ListView lv;
MyCustomAdapter adapter;

@Override
public void onCreate(Bundle si) {
    super.onCreate(si);
}

@Override
public void onActivityCreated(Bundle b) {
    super.onActivityCreated(b);
}

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

    View view = inflater.inflate(R.layout.fragment_basic, container, false);
    lv = (ListView) view.findViewById(android.R.id.list);
    FetchedData DT = FetchedData.StaticDataTransfer();
    RecepiesProperties[] AryObjaz = DT.getData();
    getdata(AryObjaz);
    adapter = new MyCustomAdapter(getActivity(), R.layout.listview_layout,
            Dataset);
    lv.setAdapter(adapter);

    lv.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                long arg3) {
            Toast t = Toast.makeText(getActivity(), "Message",
                    Toast.LENGTH_SHORT);
            t.show();
        }
    });

    return view;
}}

MyCustomAdapter.java

public class MyCustomAdapter extends ArrayAdapter<Recipes> {

Context context;
int layoutResourceId;
Recipes data[] = null;
Typeface typeface;
public ImageLoader imageLoader;

public MyCustomAdapter(Context context, int textViewResourceId,
        Recipes[] dataset) {
    super(context, textViewResourceId, dataset);
    this.layoutResourceId = textViewResourceId;
    this.context = context;
    this.data = dataset;
    imageLoader = new ImageLoader(context.getApplicationContext());
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;

    LayoutInflater inflater = ((Activity) context).getLayoutInflater();
    row = inflater.inflate(layoutResourceId, parent, false);
    RecipesHolder holder = new RecipesHolder();
    holder.imgIcon = (ImageView) row.findViewById(R.id.imageView1);
    holder.txtTitle = (TextView) row.findViewById(R.id.title);
    holder.category = (TextView) row.findViewById(R.id.category);
    holder.source = (TextView) row.findViewById(R.id.source);
    holder.country = (TextView) row.findViewById(R.id.country);
    holder.readytime = (TextView) row.findViewById(R.id.readytime);
    holder.tips = (Button) row.findViewById(R.id.tips);
    holder.fav = (Button) row.findViewById(R.id.fav);

    Recipes ap = data[position];

    imageLoader.DisplayImage(ap.getIMAGENAME240(), holder.imgIcon);
    holder.txtTitle.setText(ap.getNAME());
    holder.category.setText(ap.getCATEGORY());
    holder.source.setText(ap.getSOURCE());
    holder.country.setText(ap.getCOUNTRY());
    holder.readytime.setText(ap.getREADYTIME());

    return row;
}

static class RecipesHolder {
    ImageView imgIcon;
    TextView txtTitle;
    TextView category;
    TextView source;
    TextView country;
    TextView readytime;
    Button tips;
    Button fav;
}}

// listview_layout.xml

<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"><ImageView
    android:id="@+id/imageView1"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:layout_alignParentLeft="true"
    android:focusable="true"
    android:layout_alignParentTop="true"
    android:layout_marginLeft="5dp"
    android:layout_marginTop="10dp" />

<TextView
    android:id="@+id/readytime"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBaseline="@+id/country"
    android:layout_alignBottom="@+id/country"
    android:layout_marginLeft="73dp"
    android:layout_toRightOf="@+id/country"
    android:focusable="true"
    android:text="TextView"
    android:textColor="#000" />

<TextView
    android:id="@+id/country"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@+id/imageView1"
    android:layout_alignLeft="@+id/source"
    android:focusable="true"
    android:text="TextView"
    android:textColor="#000" />

<TextView
    android:id="@+id/source"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/country"
    android:layout_alignLeft="@+id/category"
    android:focusable="true"
    android:text="TextView"
    android:textColor="#000" />

<TextView
    android:id="@+id/category"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/source"
    android:layout_alignLeft="@+id/title"
    android:text="TextView"
    android:focusable="true"
    android:textColor="#000" />

<TextView
    android:id="@+id/title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/category"
    android:layout_toRightOf="@+id/imageView1"
    android:text="TextView"
    android:focusable="true"
    android:textColor="#000" />

<Button
    android:id="@+id/fav"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/tips"
    android:layout_below="@+id/source"
    android:focusable="true"
    android:background="@drawable/favourite" />

<Button
    android:id="@+id/tips"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:layout_alignTop="@+id/textView1"
    android:layout_marginRight="14dp"
    android:background="@drawable/yellow" /></RelativeLayout>

Answer 1

当listview中的所有控件（按钮，textviews）设置为focusable false时，

终于解决了这个问题。

Answer 2

检查MyCustomAdapter，自定义布局中的某些小部件（例如：Button，ImageButton）将使用click事件，然后onItemClick将永远不会被调用。

在adaper的getView方法中使用以下代码来获取onClick事件。

     row.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

        }
    });

Answer 3

根据Android API文档：

ListFragment具有默认布局，该布局由单个列表视图组成。 但是，如果需要，可以通过自定义片段布局从onCreateView返回您自己的视图层次结构（LayoutInflater， ViewGroup，Bundle）。 要执行此操作，您的视图层次结构必须包含具有id“@android：id / list”的ListView对象（如果它在，则列出代码）

由于你没有发布片段的布局文件，我不知道这里出了什么问题。以下代码是使用ListFragment的默认列表视图时的方式。如果您使用的是ListFragment，则应使用setListAdapter和onListItemClick等其他可用方法。您可以在不使用ListFragment（仅使用片段）的情况下执行相同的操作。

碎片代码（修改了你的代码）

public class BasicFragment extends ListFragment { MyCustomAdapter adapter; @Override public void onCreate(Bundle si) { super.onCreate(si); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); // not sure what you are doing here but data fetch should be asynchronous if it interacts with DB or makes network call FetchedData DT = FetchedData.StaticDataTransfer(); RecepiesProperties[] AryObjaz = DT.getData(); getdata(AryObjaz); adapter = new MyCustomAdapter(getActivity(), R.layout.listview_layout, Dataset); setListAdapter(adapter); } @Override public void onListItemClick(ListView l, View v, int position, long id) { Toast t = Toast.makeText(getActivity(), "Message", Toast.LENGTH_SHORT); t.show(); } }

此外，我修改了您的适配器代码以帮助回收视图，您当前的代码没有使用视图回收，并且一直在夸大视图。

适配器代码：

public class MyCustomAdapter extends ArrayAdapter<Recipes> { Context context; int layoutResourceId; Recipes data[] = null; Typeface typeface; public ImageLoader imageLoader; private LayoutInflater inflater; public MyCustomAdapter(Context context, int textViewResourceId, Recipes[] dataset) { super(context, textViewResourceId, dataset); this.layoutResourceId = textViewResourceId; this.context = context; this.data = dataset; imageLoader = new ImageLoader(context.getApplicationContext()); inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } @Override public View getView(int position, View convertView, ViewGroup parent) { View row = convertView; RecipesHolder holder = null; //recycling views if(null == row){ row = inflater.inflate(layoutResourceId, parent, false); holder = new RecipesHolder(); holder.imgIcon = (ImageView) row.findViewById(R.id.imageView1); holder.txtTitle = (TextView) row.findViewById(R.id.title); holder.category = (TextView) row.findViewById(R.id.category); holder.source = (TextView) row.findViewById(R.id.source); holder.country = (TextView) row.findViewById(R.id.country); holder.readytime = (TextView) row.findViewById(R.id.readytime); holder.tips = (Button) row.findViewById(R.id.tips); holder.fav = (Button) row.findViewById(R.id.fav); row.setTag(holder); }else{ holder = (RecipesHolder)row.getTag(); } Recipes ap = data[position]; imageLoader.DisplayImage(ap.getIMAGENAME240(), holder.imgIcon); holder.txtTitle.setText(ap.getNAME()); holder.category.setText(ap.getCATEGORY()); holder.source.setText(ap.getSOURCE()); holder.country.setText(ap.getCOUNTRY()); holder.readytime.setText(ap.getREADYTIME()); return row; } static class RecipesHolder { ImageView imgIcon; TextView txtTitle; TextView category; TextView source; TextView country; TextView readytime; Button tips; Button fav; } }

Answer 4

当您夸大视图时，您的视图中似乎有2个按钮：

这row.findViewById(R.id.tips);

和row.findViewById(R.id.fav);

您应该删除这些按钮（如果您不想点击它们，请用textviews替换它们）

或者，如果您想要点击这些按钮，可以为每个按钮使用OnClickListener，为整个视图使用另一个OnClickListener。

示例

@Override public View getView(int position, View convertView, ViewGroup parent) { View row = convertView; //we only inflate if the row is null!! if(row == null) { LayoutInflater inflater = ((Activity) context).getLayoutInflater(); row = inflater.inflate(layoutResourceId, parent, false); RecipesHolder holder = new RecipesHolder(); holder.imgIcon = (ImageView) row.findViewById(R.id.imageView1); holder.txtTitle = (TextView) row.findViewById(R.id.title); holder.category = (TextView) row.findViewById(R.id.category); holder.source = (TextView) row.findViewById(R.id.source); holder.country = (TextView) row.findViewById(R.id.country); holder.readytime = (TextView) row.findViewById(R.id.readytime); holder.tips = (Button) row.findViewById(R.id.tips); holder.fav = (Button) row.findViewById(R.id.fav); //we set the tag of the view to this holder so we can get it everytime row.setTag(holder); } //change this to final so that you can use it inside your click listeners final Recipes ap = data[position]; //here we get the holder of the view from its tag RecipesHolder holder = (RecipesHolder) row.getTag(); //no changes to ur setup imageLoader.DisplayImage(ap.getIMAGENAME240(), holder.imgIcon); holder.txtTitle.setText(ap.getNAME()); holder.category.setText(ap.getCATEGORY()); holder.source.setText(ap.getSOURCE()); holder.country.setText(ap.getCOUNTRY()); holder.readytime.setText(ap.getREADYTIME()); //now the click listeners //tips button holder.tips.setOnClickListener(new OnClickListener() { public void onClick(View v) { //tips has been clicked //do whatever you want with `ap` } }); //fav button holder.fav.setOnClickListener(new OnClickListener() { public void onClick(View v) { //fav has been clicked //do whatever you want with `ap` } }); //whole item click row.setOnClickListener(new OnClickListener() { public void onClick(View v) { //the row has been clicked //do whatever you want with `ap` } }); return row; }

Answer 5

将以下代码放在onViewCreated()方法中：

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {

    ListView list = (ListView) view.findViewById(android.R.id.list);

    list.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
                      Toast t = Toast.makeText(getActivity(), "Message",
                             Toast.LENGTH_SHORT);
                      t.show();
        }
    }); 

}

问题可能在于onViewCreate（）中尚未构建视图，因此不建议在那里设置侦听器。

Answer 6

 lv.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
                //your code
        }
   });

我认为这应该有用

Answer 7

适配器有方法areAllItemsEnabled（），它可能很有用。

public abstract boolean areAllItemsEnabled（）

指示是否已启用此适配器中的所有项目。如果此方法返回的值随时间而变化，则无法保证它将生效。如果为true，则表示所有项目都是可选择且可点击的（没有分隔符。）

Answer 8

@Override

public void onListItemClick(ListView l, View v, int position, long id) {
    // TODO Auto-generated method stub
    super.onListItemClick(l, v, position, id);
}

Answer 9

只需将android:focusable="false" android:clickable="false"放入布局中即可。适用于所有文本视图，按钮等。解决了问题。

Answer 10

我有一个类似的问题，我花了很长时间才弄清楚出了什么问题。以前我的片段的onListItemClick（）打开了新的活动，但是在返回到片段后，onListItemClick（）监听器不再起作用了。

@Override
public void onListItemClick(ListView l, View v, int position, long id) {
    super.onListItemClick(l, v, position, id);
    // additional code (e.g. open new activity)
}

通过在我的自定义ArrayAdapter中创建一个侦听器来解决此问题。我将此代码放在getView（）中：

    rowView.setOnClickListener(new View.OnClickListener() {
        final int p = position;
        @Override
        public void onClick(View v) {
            Log.d("FeedListAdapter", "onClick()");
            openPost(p);    // for example
        }
    });

我整晚都在熬夜（早上8点），我想我应该为其他在类似地点的人发布我的解决方案：）

Onclicklistener无法在片段列表视图中工作

10 个答案: