BaseAdapter
에서 레이아웃 파일을 사용하고 싶지 않습니다. 기본 어댑터에서 뷰를 생성하여 모든 어댑터에 대해 listview
을 호출 할 수 있습니다. 내 코드가 작동하지 않습니다.기본 어댑터의 런타임에 뷰를 생성하는 방법
여기 내 코드입니다 :
public class MyAdapter extends BaseAdapter {
private Context context;
private List<PublicObject> objects;
public MyAdapter(Context context, List<PublicObject> objects)
{
this.context = context;
this.objects = objects;
}
@Override
public int getCount() {
return this.objects.size();
}
@Override
public Object getItem(int position) {
return this.objects.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
private TextView CreateTextView()
{
TextView txtView = new TextView(this.context);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, 1);
txtView.setGravity(View.TEXT_ALIGNMENT_CENTER);
txtView.setLayoutParams(lp);
txtView.setTextSize(14);
txtView.setTextColor(Color.BLACK);
return txtView;
}
protected static class ViewHolder
{
private List<TextView> viewList;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if(convertView == null)
{
LinearLayout lnr = new LinearLayout(this.context);
lnr.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
lnr.setLayoutParams(lp);
List<TextView> viewList = new ArrayList<>();
for(int i = 0, limit = this.objects.get(0).GetList().size(); i < limit; i++) {
TextView txt = this.CreateTextView();
lnr.addView(txt);
viewList.add(txt);
}
convertView = lnr;
viewHolder = new ViewHolder();
viewHolder.viewList = viewList;
convertView.setTag(viewHolder);
}
else viewHolder = (ViewHolder) convertView.getTag();
List<TextView> views = viewHolder.viewList;
List<String> s = this.objects.get(position).GetList();
for(int i = 0, limit = s.size(); i < limit; i++)
{
TextView txt = views.get(i);
txt.setText(s.get(i));
}
return convertView;
}
}
이것은 내 모델 클래스,
public class PublicObject {
private List<String> list;
public PublicObject(List<String> list) {
this.list = list;
}
public List<String> GetList() {
return this.list;
}
}
오류
9 16 : 30 : 23.668 302-302/com.example.deryaaxis. searchviewtempalte E/AndroidRuntime : 치명적 예외 : 주 프로세스 : com.example.deryaaxis.searchviewtempalte, PID : 302 jav a.lang.ClassCastException : android.widget.LinearLayout $ LayoutParams를 android.widget.AbsListView $ LayoutParams에 캐스팅 할 수 없습니다. android.widget.ListView.measureScrapChild (ListView.java:1183)의 android.widget.ListView.measureHeightOfChildren ListView.java:1265) android.widget.RelativeLayout.measureChildHorizontal에서 android.view.View.measure (View.java:16820) 에서 android.widget.ListView.onMeasure (ListView.java:1175) 에서 (RelativeLayout의. java : 719) android.widget.RelativeLayout.onMeasure (RelativeLayout.java:455)에서 android.view.View.measure (View.java:16820)에서 andro id.view.ViewGroupMeasureChildWithMargins (ViewGroup.java:5156) android.support.v7.widget.ContentFrameLayout.onMeasure (ContentFrameLayout.java:135)의 에있는 android.widget.FrameLayout.onMeasure (FrameLayout.java:310)의 android.view.View.measure (View.java:16820) android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:5156) android.support.v7.widget.ActionBarOverlayLayout.onMeasure에서 (ActionBarOverlayLayout.java에서 에서 : 391) android.view.View.measure (View.java:16820) at android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:5156) at android.widget.FrameLayo ut.onMeasure (FrameLayout.java:310) android.widget.LinearLayout에서 android.view.ViewGroup.measureChildWithMargins (ViewGroup.java:5156) 에서 android.view.View.measure (View.java:16820) 에서 . android.view.View.measure에서 measureChildBeforeLayout android.widget.LinearLayout.onMeasure (LinearLayout.java:588)에서 android.widget.LinearLayout.measureVertical (LinearLayout.java:695)에서 (LinearLayout.java:1404) (View.java:16820) android.view.View.ViewGroup.measureChildWithMargins (ViewGroup.java:5156) at android.widget.FrameLayout.onMeasure (FrameLayout.java:310) 에서 com.android.internal.policy.impl.PhoneWindow $ DecorView.onMeasure (PhoneWindow.java:2295) at android.view.View.measure (View.java:16820) at android.view.ViewRootImpl.performMeasure (ViewRootImpl.java:1962) android.view.ViewRootImpl.performTraversals (ViewRootImpl. ViewRootImpl.java:1156)에있는 을 android.view.ViewRootImpl.measureHierarchy (ViewRootImpl.java:1156)에 있습니다.자바 : 1341) android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1043에서 ) android.view.Choreographer $ CallbackRecord.run에서 android.view.ViewRootImpl $ TraversalRunnable.run (ViewRootImpl.java:5885) (에서 android.view.Choreographer $ FrameDisplayEventReceiver.run에서 android.view.Choreographer.doFrame (Choreographer.java:544) 에서 android.view.Choreographer.doCallbacks (Choreographer.java:574) 에서 Choreographer.java:771) (Choreographer.java:757) android.os.Handler.handleCallback (Handler.java:733) android.os.Handler.dispatchMessage (Handler.java:95)(루퍼) :android.os.Looper.loop (Looper.java:149) android.app.ActivityThread.main (ActivityThread.java:5257) at java.lang.reflect.Method.invokeNative (네이티브 메소드) at java .lang.reflect.Method.invoke (Method.java:515) at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:794) at com.android.internal.os.ZygoteInit.main dalvik.system.NativeStart.main에서 (ZygoteInit.java:610) (기본 방법)
에 LinearLayout.LayoutParams을 변경해야합니다, 그 이유는 무엇입니까? * 내 코드가 작동하지 않는 이유는 무엇입니까? – Blackbelt
무엇이 오류입니까? –