How to make items clickable in list view?

一曲冷凌霜 提交于 2019-12-20 10:46:46

问题


I have been trying to search for a solution, but with very little success. I have to display a pop up window containing a list of items. I was able to display the window but onitemclicklistener is not being called upon clicking an item in the list view. Any help with this issue would be greatly appreciated.

Thanks

Edit1:

public class PopUpWindowActivity extends Activity {

    /** Called when the activity is first created. */
    String[] countries = new String[] {
        "India", "USA", "Canada"
    };

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        LinearLayout ll = new LinearLayout(this);
        ListView lv = new ListView(this);
        lv.setAdapter(new ArrayAdapter < String > (this, android.R.layout.simple_list_item_1, countries));
        lv.setOnItemClickListener(new OnItemClickListener() {

                public void onItemClick(AdapterView <? > arg0, View arg1, int arg2,
                    long arg3) {
                    Log.v("clicked", (String)((TextView) arg1).getText());
                }

            });
        ll.addView(lv);
        setContentView(ll);
    }
}

In the above code, i tried to create a layout inside which i added a list view. This makes the list view no longer clickable. I have to do this because, i am trying to implement a pop up window inside which there should be multiple items along with a list view.


回答1:


Edited Answer

Apply This Sample Please This Works For You I have Tested This Code

//ListviewActivity.java

 package com.anl.lk;

 public class ListviewActivity extends ListActivity { 

     static final String[] COUNTRIES = new String[] {

         "Afghanistan", "Albania", "Algeria", "American Samoa",
             "Andorra", "Angola", "Anguilla", "Antarctica",
             "Antigua and Barbuda", "Argentina", "Armenia", "Aruba",
             "Australia", "Austria", "Azerbaijan", "Bahrain",
             "Bangladesh", "Barbados", "Belarus", "Belgium", "Belize",
             "Benin", "Bermuda", "Bhutan", "Bolivia",
             "Bosnia and Herzegovina", "Botswana", "Bouvet Island",
             "Brazil", "British Indian Ocean Territory"
     };

     /** Called when the activity is first created. */
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setListAdapter(new ArrayAdapter < String > (this,
                 android.R.layout.simple_list_item_1, COUNTRIES));
         getListView().setTextFilterEnabled(true);
     }

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

         new AlertDialog.Builder(this)
             .setTitle("Hello")
             .setMessage("from " + getListView().getItemAtPosition(position))
             .setPositiveButton("OK",
             new DialogInterface.OnClickListener() {
                 public void onClick(DialogInterface dialog, int which) {}
             })
             .show();

         Toast.makeText(ListviewActivity.this,
             "ListView: " + l.toString() + "\n" +
             "View: " + v.toString() + "\n" +
             "position: " + String.valueOf(position) + "\n" +
             "id: " + String.valueOf(id),
             Toast.LENGTH_LONG).show();
     }

 }

//FirstPage

package com.anl.lk;

public class FirstPage extends Activity {

    @override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button b = (Button) findViewById(R.id.button1);
        b.setOnClickListener(new OnClickListener() {

                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    Intent sam = new Intent(FirstPage.this, ListviewActivity.class);
                    startActivity(sam);

                }
            });
    }
}

//Manifest File

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.anl.lk"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="8" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <activity
        android:label="@string/app_name"
        android:name=".FirstPage" >
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".ListviewActivity"    android:theme="@android:style/Theme.Dialog"></activity>
</application>

Please Use This Code it have your Solution




回答2:


Is the list and items in the list set to clickable? Either programmatically...

ListView myList = (ListView) findViewById(R.id.list_view_id);
myList.setClickable(true);

Or in the XML...

   <ListView xmlns:android="http://schemas.android.com/apk/res/android"
       android:clickable="true">
   ...
   </ListView>

I assume you did that, but sometimes we miss even the obvious :)

EDIT:

From the Android Tutorial here is how to set an onItemClickListener programmatically.

 ListView lv = getListView();
 lv.setOnItemClickListener(new OnItemClickListener() {

   public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
       // When clicked perform some action...
   }
 });

EDIT 2:

Here is my XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <ListView xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:id="@+id/list" />

</LinearLayout>

And here is my code

 public class HelloAndroidActivity extends Activity {

     /** Called when the activity is first created. */
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
         String[] countries = getResources().getStringArray(R.array.countries_array);

         ListView lv = (ListView) findViewById(R.id.list);
         lv.setAdapter(new ArrayAdapter < String > (this, R.layout.list_item, countries));
         lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                 public void onItemClick(AdapterView <? > arg0, View view, int position, long id) {
                     // When clicked, show a toast with the TextView text
                     Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
                         Toast.LENGTH_SHORT).show();

                 }

             });
     }
 }



回答3:


ListView myList;
myList = (ListView)findViewById(list_vew_id_in_xml)
myList.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View  view, int position, long id) 
        {
      //Toast.makeText(BritishCouncilActivity.this, "" + position, 2).show();
         }
 });



回答4:


Insert this property against any listview item

android:onClick="buttonClicked"

then in you code

public void buttonClicked(View view)
{
    //Do what you want to do..
}


来源:https://stackoverflow.com/questions/9596663/how-to-make-items-clickable-in-list-view

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