如何处理 Android 中的 ListView 点击

How to handle ListView click in Android

提问by teepusink

How do I listen to click event on a ListView?

如何监听 ListView 上的点击事件？

This is what I have now

这就是我现在所拥有的

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

When I do the following

当我执行以下操作时

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.

这似乎对点击没有任何作用。
所有这些代码都存在于一个扩展 Activity 的类中。

回答by dxh

On your list view, use setOnItemClickListener

在您的列表视图中，使用 setOnItemClickListener

回答by Aditya Mehta

Suppose ListView object is lv, do the following-

假设 ListView 对象是 lv，请执行以下操作-

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by Vijay C

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

您需要在您的适配器类 getView() 方法中设置膨胀视图“可点击”和“能够监听点击事件”。

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,

并在您的 ListActivity 中声明点击侦听器，如下所示，

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.

这仅在您通过扩展 BaseAdapter 来自定义 Adapter 时才适用。

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

更多详情请参考 ANDROID_SDK/samples/ApiDemos/src/com/example/android/apis/view/List14.java

回答by Dimitar Dimitrov

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

我之前的两个答案是正确的 - 你可以使用OnItemClickListener.

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

这是很好的注意，差之间OnItemClickListener和OnItemSelectedListener，虽然听上去含蓄，其实显著，为项目选择和重点与您的触摸模式相关AdapterView。

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

默认情况下，在触摸模式下，没有选择和焦点。您可以在此处查看有关该主题的更多信息。

回答by Amio.io

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

该解决方案非常简约，不会弄乱您的代码。

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

在你的list_item.xml（不是 listView！）中，像这样分配属性android:onClick：

<RelativeLayout android:onClick="onClickDoSomething">

and then in your activity call this method:

然后在您的活动中调用此方法：

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

回答by Shudy

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

你setOnItemClickListener得用别人说的。
代码应该是这样的：

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by bourax webmaster

First, the class must implements the click listenener :

首先，该类必须实现点击监听器：

implements OnItemClickListener

Then set a listener to the ListView

然后为 ListView 设置一个监听器

yourList.setOnItemclickListener(this);

And finally, create the clic method:

最后，创建 clic 方法：

@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

您可以在此处查看并下载代码

回答by Amey Haldankar

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

在您的活动中使用 setOnItemClickListener() api。以下是示例。

listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){

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

});

回答by Allen

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

在 Kotlin 中，为你的 listView 添加一个监听器就像 java 一样简单

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

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

 }