Question

我试图在Android中创建一个带有列表的应用程序！

我正在从我的数据库中获取我想要的数据，现在我试图将其放入listview

我尝试按照教程进行操作。

现在我为自己构建一个应用程序，我的应用程序在启动时崩溃是我的活动代码

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

        this.setContentView(R.layout.activity_stats);
        setContentView(R.layout.activity_stats);
        ListView listContent = (ListView)findViewById(R.id.listShit);

        ArrayList<HashMap<String, String>> shitList =  dbTools.getAllShits();
          dbTools.getAllShits();


        if(shitList.size()!=0) {



            ListAdapter adapter = new SimpleAdapter( stats.this,shitList, R.id.shit_entry, new String[] { "shitId","earned"}, new int[] {R.id.shitId, R.id.earned});


            setListAdapter(adapter);
        }

logcat

8-11 21:29:47.718  29617-29617/jmsbrk.crappapp E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: jmsbrk.crappapp, PID: 29617
    java.lang.RuntimeException: Unable to start activity ComponentInfo{jmsbrk.crappapp/jmsbrk.crappapp.stats}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2282)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2340)
            at android.app.ActivityThread.access$800(ActivityThread.java:157)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:157)
            at android.app.ActivityThread.main(ActivityThread.java:5293)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
            at dalvik.system.NativeStart.main(Native Method)
     Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
            at android.app.ListActivity.onContentChanged(ListActivity.java:243)
            at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:343)
            at android.app.Activity.setContentView(Activity.java:1973)
            at jmsbrk.crappapp.stats.onCreate(stats.java:36)
            at android.app.Activity.performCreate(Activity.java:5389)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2246)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2340)
            at android.app.ActivityThread.access$800(ActivityThread.java:157)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:157)
            at android.app.ActivityThread.main(ActivityThread.java:5293)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
            at dalvik.system.NativeStart.main(Native Method)

Answer 1

如果您正在扩展ListActivity，Android默认会尝试搜索ID为“@android：id / list”的Listview。确保你正在设置它。

一个基本的例子是：

    <ListView android:id="@android:id/list"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"/>

SimpleAdapter在启动Android时布局和SQLite崩溃

1 个答案: