我是Android开发的新手，需要帮助填充我的ListView。 数据库方法返回一个List数组，我需要将“name”和“sex”放入自定义中 列表显示。 这些是代码的相关部分：
DatabaseHandler.Java
public List<Suspect> getAllContacts() {
List<Suspect> suspectList = new ArrayList<Suspect>();
// Select All Query
String selectQuery = "SELECT * FROM " + TABLE_SUSPECTS;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Suspect suspect = new Suspect();
suspect.setID(Integer.parseInt(cursor.getString(0)));
suspect.setName(cursor.getString(1));
suspect.setSex(cursor.getString(2));
suspect.setHeight(cursor.getString(3));
suspect.setAge(cursor.getString(4));
suspect.setHair(cursor.getString(5));
suspect.setAdditional(cursor.getString(6));
suspect.setNationality(cursor.getString(7));
suspect.setType(cursor.getString(8));
// Adding suspect to list
suspectList.add(suspect);
} while (cursor.moveToNext());
}
// return suspect list
return suspectList;
}
Suspectview.java
DatabaseHandler db = new DatabaseHandler(this);
List<Suspect> lol = db.getAllContacts();
listView = (ListView) findViewById(R.id.suspectView);
List<String> stock_list = new ArrayList<String>();
stock_list.add("stock1");
stock_list.add("stock2");
ArrayList<String> your_array_list = new ArrayList<String>();
your_array_list = stock_list.toArray((your_array_list));
for(String s : your_array_list)
System.out.println(s)
ArrayAdapter<String> arrayAdapter =
new ArrayAdapter<String>(this,R.layout.suspect_list,your_array_list);
listView.setAdapter(arrayAdapter);
Suspect_list.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!-- Suspect id / Hidden by default -->
<TextView
android:id="@+id/suspect_id"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
<!-- Suspect Name -->
<!-- Suspect Image -->
<ImageView
android:contentDescription="@string/name"
android:id="@+id/suspect_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:adjustViewBounds="true"
android:background="#9ed321"
android:maxHeight="80dp"
android:maxWidth="80dp"
android:paddingLeft="3dip"
android:paddingRight="3dip"
android:src="@drawable/iconcontactadd"
android:textColor="#ffffff"
android:textStyle="bold" />
<TextView
android:id="@+id/suspect_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/suspect_image"
android:layout_marginLeft="21dp"
android:layout_toRightOf="@+id/suspect_image"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="@+id/suspect_sex"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/suspect_name"
android:layout_alignBottom="@+id/suspect_name"
android:layout_marginLeft="20dp"
android:layout_toRightOf="@+id/suspect_name"
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall" />
</RelativeLayout>
activity_suspect_view.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<include layout="@layout/header"
android:id="@+id/header"
/>
<ListView
android:id="@+id/suspectView"
android:layout_below="@+id/header"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="#b5b5b5"
android:dividerHeight="1dp"
android:cacheColorHint="#00000000"/>
</RelativeLayout>
logcat的。
05-03 15:18:18.023: D/dalvikvm(369): GC_EXTERNAL_ALLOC freed 75K, 52% free 2599K/5379K, external 1917K/2137K, paused 40ms
05-03 15:18:18.074: D/AndroidRuntime(369): Shutting down VM
05-03 15:18:18.074: W/dalvikvm(369): threadid=1: thread exiting with uncaught exception (group=0x40015560)
05-03 15:18:18.093: E/AndroidRuntime(369): FATAL EXCEPTION: main
05-03 15:18:18.093: E/AndroidRuntime(369): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.sherlock/com.example.sherlock.Suspectview}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.os.Handler.dispatchMessage(Handler.java:99)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.os.Looper.loop(Looper.java:123)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ActivityThread.main(ActivityThread.java:3683)
05-03 15:18:18.093: E/AndroidRuntime(369): at java.lang.reflect.Method.invokeNative(Native Method)
05-03 15:18:18.093: E/AndroidRuntime(369): at java.lang.reflect.Method.invoke(Method.java:507)
05-03 15:18:18.093: E/AndroidRuntime(369): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
05-03 15:18:18.093: E/AndroidRuntime(369): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
05-03 15:18:18.093: E/AndroidRuntime(369): at dalvik.system.NativeStart.main(Native Method)
05-03 15:18:18.093: E/AndroidRuntime(369): Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ListActivity.onContentChanged(ListActivity.java:243)
05-03 15:18:18.093: E/AndroidRuntime(369): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:210)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.Activity.setContentView(Activity.java:1657)
05-03 15:18:18.093: E/AndroidRuntime(369): at com.example.sherlock.Suspectview.onCreate(Suspectview.java:28)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-03 15:18:18.093: E/AndroidRuntime(369): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
05-03 15:18:18.093: E/AndroidRuntime(369): ... 11 more
05-03 15:18:19.903: I/Process(369): Sending signal. PID: 369 SIG: 9
答案 0 :(得分：0)
例外：＆＃34;您的内容必须有一个ListView，其id属性为＆＃39; android.R.id.list＆＃39;＆＃34;。尝试将ListView的ID更改为此值。
答案 1 :(得分：0)
您以错误的方式使用ListActivity：请参阅http://developer.android.com/guide/topics/ui/layout/listview.html#Example
您应该只是扩展Activity而不是ListActivity。
在您的问题评论中，您说您已将其更改为“活动”。但是，您的LogCat输出仍然在ListActivity.onContentChanged（...）中显示错误。所以？