我的列表视图有问题，当我在listveiw中添加subitem然后subitem显示在另一个列表项中并单击它崩溃的项目并给出此错误java.lang.IllegalStateException：ArrayAdapter需要资源ID为TextView的
这是数据库类
public class DBHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "DailyTask.db";
public static final String TASKS_TABLE_NAME = "task";
public static final String TASKS_COLUMN_ID = "id";
public static final String TASKS_COLUMN_TITLE = "title";
public static final String TASKS_COLUMN_DESCRIPTION = "description";
public static final String TASKS_COLUMN_NOTIFICATION = "notification";
public static final String TASKS_COLUMN_STATUS = "status";
public static final String TASKS_COLUMN_STATUSVALUE = "statusvalue";
private static final String MODE_PRIVATE = null;
private static final String PREFS_NAME = null;
private HashMap hp;
public DBHelper(Context context)
{
super(context, DATABASE_NAME , null, 1);
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL(
"create table task " +
"(id integer primary key, title text,description text,notification text,status text,statusvalue int)"
);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS task");
onCreate(db);
}
public boolean insertContact (String title, String description, String notification)
{
String status = "Processing";
String statusvalue = "2";
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put("title", title);
contentValues.put("description", description);
contentValues.put("notification", notification);
contentValues.put("status", status);
contentValues.put("statusvalue", statusvalue);
db.insert("task", null, contentValues);
return true;
}
public Cursor getData(int id){
SQLiteDatabase db = this.getReadableDatabase();
Cursor res = db.rawQuery( "select * from task where id="+id+"", null );
return res;
}
public int numberOfRows(){
SQLiteDatabase db = this.getReadableDatabase();
int numRows = (int) DatabaseUtils.queryNumEntries(db, TASKS_TABLE_NAME);
return numRows;
}
public boolean updateContact (Integer id, String title, String description, String notification, String status)
{
SQLiteDatabase db = this.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put("title", title);
contentValues.put("description", description);
contentValues.put("notification", notification);
contentValues.put("status", status);
db.update("task", contentValues, "id = ? ", new String[] { Integer.toString(id) } );
return true;
}
public Integer deleteContact (Integer id)
{
SQLiteDatabase db = this.getWritableDatabase();
return db.delete("task",
"id = ? ",
new String[] { Integer.toString(id) });
}
public ArrayList getAllCotacts()
{
ArrayList array_list = new ArrayList();
//hp = new HashMap();
SQLiteDatabase db = this.getReadableDatabase();
Cursor res = db.rawQuery( "select * from task", null );
res.moveToFirst();
while(res.isAfterLast() == false){
//String Name = res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE));
//Log.d("DBHelper", Name);
array_list.add(res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE)));
res.moveToNext();
}
return array_list;
}
public ArrayList getProcessingCotacts()
{
ArrayList array_list1 = new ArrayList();
//hp = new HashMap();
SQLiteDatabase db = this.getReadableDatabase();
String textValue = "Processing";
String query = "select * from task where status = ?";
Cursor res = db.rawQuery(query, new String[] {textValue});
//Cursor res = db.rawQuery( "select * from task", null );
res.moveToFirst();
while(res.isAfterLast() == false){
//String Name = res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE));
//Log.d("DBHelper", Name);
array_list1.add(res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE)));
res.moveToNext();
}
return array_list1;
}
public ArrayList getIncompletedCotacts()
{
ArrayList array_list1 = new ArrayList();
//hp = new HashMap();
SQLiteDatabase db = this.getReadableDatabase();
String textValue = "Incompleted";
String query = "select * from task where status = ?";
Cursor res = db.rawQuery(query, new String[] {textValue});
//Cursor res = db.rawQuery( "select * from task", null );
res.moveToFirst();
while(res.isAfterLast() == false){
//String Name = res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE));
//Log.d("DBHelper", Name);
array_list1.add(res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE)));
res.moveToNext();
}
return array_list1;
}
public ArrayList getCompletedCotacts()
{
ArrayList array_list1 = new ArrayList();
//hp = new HashMap();
SQLiteDatabase db = this.getReadableDatabase();
String textValue = "Completed";
String query = "select * from task where status = ?";
Cursor res = db.rawQuery(query, new String[] {textValue});
//Cursor res = db.rawQuery( "select * from task", null );
res.moveToFirst();
while(res.isAfterLast() == false){
//String Name = res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE));
//Log.d("DBHelper", Name);
array_list1.add(res.getString(res.getColumnIndex(TASKS_COLUMN_TITLE)));
res.moveToNext();
}
return array_list1;
}
}
这是MainActivity类
public class MainActivity extends Activity {
private SharedPreference sharedPreference;
Activity context = this;
private ListView obj;
DBHelper mydb;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list);
sharedPreference = new SharedPreference();
String text = null;
text = sharedPreference.getValue(context);
//Log.d("MainActivity", text);
mydb = new DBHelper(this);
if("Incompleted Task".equals(text))
{
ArrayList array_list = mydb.getIncompletedCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
else if ("Progress Task".equals(text))
{
ArrayList array_list = mydb.getProcessingCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
else if ("Completed Task".equals(text))
{
ArrayList array_list = mydb.getCompletedCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
else
{
ArrayList array_list = mydb.getAllCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
obj.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
int id_To_Search = arg2 + 1;
Bundle dataBundle = new Bundle();
dataBundle.putInt("id", id_To_Search);
Intent intent = new Intent(getApplicationContext(),DisplayTask.class);
intent.putExtras(dataBundle);
startActivity(intent);
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.mainmenu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
super.onOptionsItemSelected(item);
switch(item.getItemId())
{
case R.id.item1:
Bundle dataBundle = new Bundle();
dataBundle.putInt("id", 0);
Intent intent = new Intent(getApplicationContext(),DisplayTask.class);
intent.putExtras(dataBundle);
startActivity(intent);
return true;
case R.id.item2:
Intent intent1 = new Intent(getApplicationContext(),setting.class);
startActivity(intent1);
default:
return super.onOptionsItemSelected(item);
}
}
public boolean onKeyDown(int keycode, KeyEvent event) {
if (keycode == KeyEvent.KEYCODE_BACK) {
moveTaskToBack(true);
}
return super.onKeyDown(keycode, event);
}
}
这是logcat
11-18 07:13:11.204: E/AndroidRuntime(1919): FATAL EXCEPTION: main
11-18 07:13:11.204: E/AndroidRuntime(1919): Process: com.example.dailytask, PID: 1919
11-18 07:13:11.204: E/AndroidRuntime(1919): java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:386)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ArrayAdapter.getView(ArrayAdapter.java:362)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.AbsListView.obtainView(AbsListView.java:2263)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ListView.makeAndAddView(ListView.java:1790)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ListView.fillDown(ListView.java:691)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ListView.fillFromTop(ListView.java:752)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ListView.layoutChildren(ListView.java:1630)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.AbsListView.onLayout(AbsListView.java:2091)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.View.layout(View.java:14817)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewGroup.layout(ViewGroup.java:4631)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.View.layout(View.java:14817)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewGroup.layout(ViewGroup.java:4631)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.View.layout(View.java:14817)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewGroup.layout(ViewGroup.java:4631)
11-18 07:13:11.204: E/AndroidRuntime(1919): at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:374)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.View.layout(View.java:14817)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewGroup.layout(ViewGroup.java:4631)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.View.layout(View.java:14817)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewGroup.layout(ViewGroup.java:4631)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1987)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1744)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.Choreographer.doFrame(Choreographer.java:544)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.os.Handler.handleCallback(Handler.java:733)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.os.Handler.dispatchMessage(Handler.java:95)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.os.Looper.loop(Looper.java:136)
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.app.ActivityThread.main(ActivityThread.java:5017)
11-18 07:13:11.204: E/AndroidRuntime(1919): at java.lang.reflect.Method.invokeNative(Native Method)
11-18 07:13:11.204: E/AndroidRuntime(1919): at java.lang.reflect.Method.invoke(Method.java:515)
11-18 07:13:11.204: E/AndroidRuntime(1919): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
11-18 07:13:11.204: E/AndroidRuntime(1919): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
11-18 07:13:11.204: E/AndroidRuntime(1919): at dalvik.system.NativeStart.main(Native Method)
11-18 07:13:11.204: E/AndroidRuntime(1919): Caused by: java.lang.ClassCastException: android.widget.TwoLineListItem cannot be cast to android.widget.TextView
11-18 07:13:11.204: E/AndroidRuntime(1919): at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:379)
11-18 07:13:11.204: E/AndroidRuntime(1919): ... 40 more
答案 0 :(得分：0)
更新的代码 - 你正在使用
ArrayAdapter arrayAdapter = new ArrayAdapter(this,R.layout.items, array_list);
是创建适配器的正确方法，因为它需要制作自定义布局R.layout.items。我使用的是android.R.layout.simple_list_item_1
if("Incompleted Task".equals(text))
{
ArrayList array_list = mydb.getIncompletedCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
else if ("Progress Task".equals(text))
{
ArrayList array_list = mydb.getProcessingCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
else if ("Completed Task".equals(text))
{
ArrayList array_list = mydb.getCompletedCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}
else
{
ArrayList array_list = mydb.getAllCotacts();
ArrayAdapter arrayAdapter =
new ArrayAdapter(this,android.R.layout.simple_list_item_1, array_list);
obj = (ListView)findViewById(R.id.listView1);
obj.setAdapter(arrayAdapter);
}