Question

setOnItemClickListener事件在Fragment.my中没有工作setOnItemClickListener在onPostExecute ...请帮助我们...... thnx提前。这是我的代码

HomeFragment.java

public class HomeFragment extends Fragment {

private PagerAdapter mPagerAdapter;
ListView lvHome;


public HomeFragment() {

}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment

    View view = inflater.inflate(R.layout.fragment_home, container, false);
    DisplayImageOptions defaultOptions = new DisplayImageOptions.Builder()
            .cacheInMemory(true)
            .cacheOnDisk(true)
            .build();
    ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getActivity().getApplicationContext())
            .defaultDisplayImageOptions(defaultOptions)
            .build();
    ImageLoader.getInstance().init(config);

    lvHome = (ListView)view.findViewById(R.id.lvHome);

    //Start download
    new JSONTask().execute("http://www.darkabc.com/mobile_home.php");
    ViewPager pager = (ViewPager) view.findViewById(R.id.viewPager2);


    List<Fragment> fragments = new Vector<Fragment>();
    fragments.add(Fragment.instantiate(getActivity(), ImageOneWelcome.class.getName()));
    fragments.add(Fragment.instantiate(getActivity(), ImageTwoWelcome.class.getName()));
    fragments.add(Fragment.instantiate(getActivity(), ImageThreeWelcome.class.getName()));

    mPagerAdapter = new ImagePagerAdapter(getChildFragmentManager(), fragments);

    pager.setAdapter(mPagerAdapter);


    return view;


}
private class JSONTask extends AsyncTask<String,String, List<Bardata>> {

    @Override
    protected List<Bardata> doInBackground(String... params) {

        HttpURLConnection connection = null;
        BufferedReader reader= null;

        try {
            URL url = new URL(params[0]);
            connection = (HttpURLConnection) url.openConnection();
            connection.connect();

            InputStream stream = connection.getInputStream();

            reader = new BufferedReader(new InputStreamReader(stream));

            StringBuffer buffer =new StringBuffer();

            String line="";
            while ((line =reader.readLine()) != null){
                buffer.append(line);
            }
            String finalJson = buffer.toString();

            JSONObject parentObject = new JSONObject(finalJson);
            JSONArray parentArray = parentObject.getJSONArray("home");

            List<Bardata> bardataList =new ArrayList<>();
            Gson gson = new Gson();
            for (int i= 0;i<parentArray.length();i++) {


                JSONObject finalObject = parentArray.getJSONObject(i);

                Bardata bardata = gson.fromJson(finalObject.toString(), Bardata.class);

                bardataList.add(bardata);

            }
            return bardataList;


        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
    }
    @Override
    protected void onPostExecute(final List<Bardata> result) {
        super.onPostExecute(result);
        if(result != null) {
            HomeAdapter adapter =new HomeAdapter(getActivity().getApplicationContext(), R.layout.homefragmentrow, result);
            lvHome.setAdapter(adapter);
            lvHome.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    Bardata bardata = result.get(position);
                    Intent intent = new Intent(getActivity(), Individualbar.class);
                    intent.putExtra("bardata", new Gson().toJson(bardata));
                    startActivity(intent);
                }
            });
        } else {
            Toast.makeText(getActivity().getApplicationContext(), "Not able to fetch data from server, please check your internet.", Toast.LENGTH_SHORT).show();
        }


    }
}
public class HomeAdapter extends ArrayAdapter {

    private List<Bardata> barDataList;
    private int resource;
    private LayoutInflater inflater ;

    public HomeAdapter(Context context, int resource, List<Bardata> objects) {
        super(context, resource, objects);
        barDataList = objects;
        this.resource =resource;
        inflater = (LayoutInflater)context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
    }

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

        ViewHolder holder = null;

        if (convertView == null) {
            holder = new ViewHolder();
            convertView = inflater.inflate(resource, null);
            holder.date1 = (ImageView) convertView.findViewById(R.id.date);
            holder.image11 = (ImageView) convertView.findViewById(R.id.image1);
            holder.image21 = (ImageView) convertView.findViewById(R.id.image2);
            holder.image31 = (ImageView) convertView.findViewById(R.id.image3);
            holder.image41 = (ImageView) convertView.findViewById(R.id.image4);
            holder.image51 = (ImageView) convertView.findViewById(R.id.image5);
            holder.zen1 = (TextView) convertView.findViewById(R.id.zen);
            holder.cityname1 = (TextView) convertView.findViewById(R.id.cityname);
            holder.rating1 = (TextView) convertView.findViewById(R.id.rating);
            holder.text1 = (TextView) convertView.findViewById(R.id.text);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        ImageLoader.getInstance().displayImage(barDataList.get(position).getBar_image(), holder.date1, new ImageLoadingListener() {
            @Override
            public void onLoadingStarted(String imageUri, View view) {
                // progressBar.setVisibility(View.VISIBLE);
            }

            @Override
            public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
                // progressBar.setVisibility(View.GONE);
            }

            @Override
            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                // progressBar.setVisibility(View.GONE);
            }

            @Override
            public void onLoadingCancelled(String imageUri, View view) {
                // progressBar.setVisibility(View.GONE);
            }
        });


        holder.zen1.setText(barDataList.get(position).getBarname());
        holder.cityname1.setText(barDataList.get(position).getLocation());
        holder.rating1.setText(barDataList.get(position).getRating());
        holder.text1.setText(barDataList.get(position).getAboutbar());




        return convertView;
    }

    class ViewHolder{

        ImageView date1;
        ImageView image11;
        ImageView image21;
        ImageView image31;
        ImageView image41;
        ImageView image51;
        TextView zen1;
        TextView cityname1;
        TextView rating1;
        TextView text1;


    }
}

}

fragment_home.xml

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
android:orientation="vertical"
tools:context="com.example.abhijeetsingh.drawer.HomeFragment">

<android.support.v4.view.ViewPager
    android:layout_width="match_parent"
    android:layout_height="170dp"
    android:elevation="1dp"
    android:id="@+id/viewPager2">

</android.support.v4.view.ViewPager>

<ListView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginTop="170dp"
    android:id="@+id/lvHome">
</ListView>

homefragmentrow.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:descendantFocusability="blocksDescendants"
>

<ScrollView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@id/relative1"
        android:layout_marginTop="7dp"
        android:background="@drawable/customborder">

        <ImageView
            android:layout_width="40dp"
            android:layout_height="30dp"
            android:id="@+id/date"
            android:paddingLeft="5dp"
            android:layout_marginTop="10dp"
            android:src="@drawable/tgif"
            android:scaleType="fitXY"
            />

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="10dp"
            android:id="@+id/line"
            android:layout_below="@+id/date"
            android:paddingLeft="5dp"
            android:layout_marginTop="10dp"
            android:src="@drawable/line"
            android:scaleType="fitXY"/>


        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TGIF"
            android:textSize="15dp"
            android:id="@+id/zen"
            android:textColor="#EF9C1A"
            android:paddingTop="10dp"
            android:layout_marginLeft="20dp"
            android:layout_toRightOf="@+id/date"
            />
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:id="@+id/cityname"
            android:layout_toRightOf="@+id/zen"
            android:text="| B-25, Safdarjung, New Delhi"
            android:layout_marginLeft="10dp"
            android:paddingTop="10dp"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:id="@+id/rating"
            android:layout_below="@+id/line"
            android:paddingLeft="5dp"
            android:textColor="#000"
            android:layout_marginTop="10dp"
            android:text="Rated"/>

        <ImageView
            android:layout_width="20dp"
            android:layout_height="20dp"
            android:id="@+id/ratingimage"
            android:layout_below="@+id/line"
            android:layout_marginTop="10dp"
            android:layout_marginLeft="2dp"
            android:src="@drawable/rated"
            android:layout_toRightOf="@+id/rating"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_toRightOf="@+id/ratingimage"
            android:layout_below="@+id/line"
            android:id="@+id/text"
            android:layout_marginTop="10dp"
            android:layout_marginLeft="20dp"

            android:textSize="15dp"
            android:text="It is a long established fact../>

        <ImageView
            android:id="@+id/image1"
            android:layout_width="66dp"
            android:layout_height="70dp"
            android:scaleType="fitXY"
            android:padding="5dp"
            android:layout_marginTop="10dp"
            android:layout_marginBottom="5dp"
            android:layout_below="@+id/text"
            android:src="@mipmap/ic_launcher"/>
    </RelativeLayout>

</ScrollView>

Answer 1

你已经使得FrameLayout Clickable窃取了clickEvent并且Kistview无法调用OnItemClick方法。

机器人：可点击= “真”

从FrameLayout中删除上面的行。它应该工作。

Answer 2

在你定义AsyncTask之外的onItemClick。

Answer 3

试试这个。

public class HomeAdapter extends ArrayAdapter {

    private List<Bardata> barDataList;
    private int resource;
    private LayoutInflater inflater ;

    public HomeAdapter(Context context, int resource, List<Bardata> objects) {
        super(context, resource, objects);
        barDataList = objects;
        this.resource =resource;
        inflater = (LayoutInflater)context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
    }

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

        ViewHolder holder = null;

        if (convertView == null) {
            holder = new ViewHolder();
            convertView = inflater.inflate(resource, null);
            holder.date1 = (ImageView) convertView.findViewById(R.id.date);
            holder.image11 = (ImageView) convertView.findViewById(R.id.image1);
            holder.image21 = (ImageView) convertView.findViewById(R.id.image2);
            holder.image31 = (ImageView) convertView.findViewById(R.id.image3);
            holder.image41 = (ImageView) convertView.findViewById(R.id.image4);
            holder.image51 = (ImageView) convertView.findViewById(R.id.image5);
            holder.zen1 = (TextView) convertView.findViewById(R.id.zen);
            holder.cityname1 = (TextView) convertView.findViewById(R.id.cityname);
            holder.rating1 = (TextView) convertView.findViewById(R.id.rating);
            holder.text1 = (TextView) convertView.findViewById(R.id.text);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }


        Bardata data = barDataList.get(position);
        convertView.setOnClickListener(new Listener(data))
        ImageLoader.getInstance().displayImage(data.getBar_image(), holder.date1, new ImageLoadingListener() {
            @Override
            public void onLoadingStarted(String imageUri, View view) {
                // progressBar.setVisibility(View.VISIBLE);
            }

            @Override
            public void onLoadingFailed(String imageUri, View view, FailReason failReason) {
                // progressBar.setVisibility(View.GONE);
            }

            @Override
            public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
                // progressBar.setVisibility(View.GONE);
            }

            @Override
            public void onLoadingCancelled(String imageUri, View view) {
                // progressBar.setVisibility(View.GONE);
            }
        });


        holder.zen1.setText(barDataList.get(position).getBarname());
        holder.cityname1.setText(barDataList.get(position).getLocation());
        holder.rating1.setText(barDataList.get(position).getRating());
        holder.text1.setText(barDataList.get(position).getAboutbar());




        return convertView;
    }

     class Listener implements View.OnClickListener {
        private Bardata data;

        Listener(Bardata data) {
            this.data = data;

        }

        @Override
        public void onClick(View v) {

                Intent intent = new Intent(getActivity(),   Individualbar.class);
                intent.putExtra("bardata", new Gson().toJson(data));
                startActivity(intent);
        }
    }

    class ViewHolder{

        ImageView date1;
        ImageView image11;
        ImageView image21;
        ImageView image31;
        ImageView image41;
        ImageView image51;
        TextView zen1;
        TextView cityname1;
        TextView rating1;
        TextView text1;


    }
}

Answer 4

在AsyncTask之外执行此操作。

    lvHome.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                Bardata bardata = result.get(position);
                Intent intent = new Intent(getActivity(),   Individualbar.class);
                intent.putExtra("bardata", new Gson().toJson(bardata));
                startActivity(intent);
            }
        });
    } else {
        Toast.makeText(getActivity().getApplicationContext(), "Not able to fetch data from server, please check your internet.", Toast.LENGTH_SHORT).show();
    }

Answer 5

这个答案是针对评论中提出的其他问题：

如果您正在进行GET来电，请将参数添加到网址/get_call?parameter_1=value_1&parameter_2=value_2。如果它是POST或PUT，您可以OutputStreamWriter使用BufferedWriter将参数设置为网址。

示例：

OutputStreamWriter out = null;
try {
    out = new OutputStreamWriter(con.getOutputStream());
} catch (IOException e) {
    e.printStackTrace();
}
BufferedWriter bw = null;
if (out != null) {
    bw = new BufferedWriter(out);
} else {
    // Connection Error
}
try {
    bw.write(parametersAsString);
    bw.flush();
    bw.close();
} catch (IOException e1) {
    e1.printStackTrace();
}

您可以使用JSONObject放置参数和值，并使用parametersAsString函数将其替换为toString()替换

列表视图setOnItemClickListener在片段中不执行任何操作

5 个答案: