ListView 的 setOnClickListener 不起作用 [英] setOnClickListener of a ListView not working

问题描述

所以我试图为我的 ListView 设置一个 setOnClickListener 但是当我尝试时它由于某种原因导致我的程序崩溃......我对编程还很陌生，所以在进行故障排除时，我真的无法做任何事情，可悲的是 :( 我的代码在下面，所以任何关于可能出错的想法都会非常有帮助:

So I'm trying to set up a setOnClickListener for my ListView but it's causing a crash in my program for some reason when I try... I'm quite new to programming so when it comes to troubleshooting I can't really do anything sadly :( my code is below so any ideas on what could be wrong would be extremely helpful:

public class HomePageActivity extends Activity {
    //ListView that holds the items
    ListView lstTest;
    
    //Array Adapter that holds the ArrayList and displays the items on the ListView
    AlertsAdapter arrayAdapter;
    
    //List that hosts the items
    ArrayList<Alerts> alrts = null;
    
    /** Called when the activity is first created. */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.homepage);
        
        //Initialize the ListView
        lstTest = (ListView)findViewById(R.id.lstText);
        
        //Initialize the ArrayList
        alrts = new ArrayList&lt;Alerts&gt;();
        
        //Initialize the array adapter
        arrayAdapter = new AlertsAdapter(HomePageActivity.this, R.layout.listitems,alrts);
        
        //Set the above adapter as the adapter of choice for our list
        lstTest.setAdapter(arrayAdapter);
        
        lstTest.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Intent intent = new Intent(
                HomePageActivity.this,
                PromotionActivity.class
                );
                startActivity(intent);
            }
        });
        //... ... ...
    }
} 

有什么想法吗?我卡住了:(

Any thoughts? I'm stuck :(

从 ddms 发布错误日志文件:

Posting error log file from ddms:

08-04 04:14:26.351: ERROR/AndroidRuntime(8882): FATAL EXCEPTION: main
08-04 04:14:26.351: ERROR/AndroidRuntime(8882): java.lang.RuntimeException: Unable to start activity ComponentInfo{hypenyte.bdutcher.promopost/hypenyte.bdutcher.promopost.HomePageActivity}: java.lang.RuntimeException: Don't call setOnClickListener for an AdapterView. You probably want setOnItemClickListener instead
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.ActivityThread.access$2300(ActivityThread.java:125)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.os.Handler.dispatchMessage(Handler.java:99)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.os.Looper.loop(Looper.java:123)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.ActivityThread.main(ActivityThread.java:4627)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at java.lang.reflect.Method.invokeNative(Native Method)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at java.lang.reflect.Method.invoke(Method.java:521)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at dalvik.system.NativeStart.main(Native Method)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882): Caused by: java.lang.RuntimeException: Don't call setOnClickListener for an AdapterView. You probably want setOnItemClickListener instead
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.widget.AdapterView.setOnClickListener(AdapterView.java:750)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at hypenyte.bdutcher.promopost.HomePageActivity.onCreate(HomePageActivity.java:58)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
08-04 04:14:26.351: ERROR/AndroidRuntime(8882):     ... 11 more

我看到它说我可能想要 setOnItemClickListener，它最初是我编码的，但它不起作用，因为 eclipse 告诉我我的代码有问题.

I saw that it said I probably want setOnItemClickListener which is originally what I had coded it as, but that it wouldn't work since eclipse told me my code was wrong with it.

推荐答案

你需要使用 setOnItemClickListener()

然后new android.widget.AdapterView.OnItemClickListener()

不是 new View.OnItemClickListener()

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