How to handle ListView click in Android

问题

How do I listen to click event on a ListView?

This is what I have now

ListView list = (ListView)findViewById(R.id.ListView01);  
...  
list.setAdapter(adapter);

When I do the following

list.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {  
   public void onItemSelected(AdapterView parentView, View childView, 
                                                         int position, long id) 
   {  
       setDetail(position);  
   }

   public void onNothingSelected(AdapterView parentView) {  

   }  
});

That doesn\'t seem to do anything on click.
And all those code live within a class that extends Activity.

回答1:

On your list view, use setOnItemClickListener

回答2:

Suppose ListView object is lv, do the following-

lv.setClickable(true);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {

  @Override
  public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {

    Object o = lv.getItemAtPosition(position);
    /* write you handling code like...
    String st = "sdcard/";
    File f = new File(st+o.toString());
    // do whatever u want to do with 'f' File object
    */  
  }
});

回答3:

You need to set the inflated view "Clickable" and "able to listen to click events" in your adapter class getView() method.

convertView = mInflater.inflate(R.layout.list_item_text, null);
convertView.setClickable(true);
convertView.setOnClickListener(myClickListener);

and declare the click listener in your ListActivity as follows,

public OnClickListener myClickListener = new OnClickListener() {
public void onClick(View v) {
                 //code to be written to handle the click event
    }
};

This holds true only when you are customizing the Adapter by extending BaseAdapter.

Refer the ANDROID_SDK/samples/ApiDemos/src/com/example/android/apis/view/List14.java for more details

回答4:

The two answers before mine are correct - you can use OnItemClickListener.

It's good to note that the difference between OnItemClickListener and OnItemSelectedListener, while sounding subtle, is in fact significant, as item selection and focus are related with the touch mode of your AdapterView.

By default, in touch mode, there is no selection and focus. You can take a look here for further info on the subject.

回答5:

This solution is really minimalistic and doesn't mess up your code.

In your list_item.xml (NOT listView!) assign the attribute android:onClick like this:

<RelativeLayout android:onClick="onClickDoSomething">

and then in your activity call this method:

public void onClickDoSomething(View view) {
   // the view is the line you have clicked on
}

回答6:

You have to use setOnItemClickListener someone said.
The code should be like this:

listView.setOnItemClickListener(new OnItemClickListener() {
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        // When clicked, show a toast with the TextView text or do whatever you need.
        Toast.makeText(getApplicationContext(), ((TextView) view).getText(), Toast.LENGTH_SHORT).show();
    }
});

回答7:

First, the class must implements the click listenener :

implements OnItemClickListener

Then set a listener to the ListView

yourList.setOnItemclickListener(this);

And finally, create the clic method:

@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Toast.makeText(MainActivity.this, "You Clicked at " +countries[+ position], Toast.LENGTH_SHORT).show();
}

you can take a look and download code here

回答8:

Use setOnItemClickListener() api in your activity. Following is the sample.

listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){

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

});

回答9:

In Kotlin, add a listener to your listView as simple as java

your_listview.setOnItemClickListener { parent, view, position, id ->   

    Toast.makeText(this, position, Toast.LENGTH_SHORT).show()

 }

来源：https://stackoverflow.com/questions/2468100/how-to-handle-listview-click-in-android

标签

android

listview

click

onitemclicklistener