我正在尝试创建一个应用程序,在我使用列表视图时,我看到一个奇怪的问题,其中如果我的listview中的项目数量少于它没有正确填充。 但是,只要列表视图中有更多元素,它就会正确填充。 我附上了两个应该解释问题的截图。请在这里帮助我。
我的适配器代码如下: -
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if(layoutInflater == null){
layoutInflater= (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
if (convertView == null){
convertView=layoutInflater.inflate(R.layout.describing_dish_list,null);
}
if (dishImageLoader == null){
dishImageLoader=AppController.getInstance().getImageLoader();
}
Log.d(OrderUpdateConfig.TAG,"DishListAdapter SET DISH NAME");
TextView dishName=(TextView) convertView.findViewById(R.id.tv_dish_name);
TextView dishExplore=(TextView) convertView.findViewById(R.id.tv_dish_explore);
FeedImageView dishImageView =(FeedImageView) convertView.findViewById(R.id.image_dish_pic);
DishDetails dishDetails= dishDetailsList.get(position);
dishName.setText(dishDetails.getDish_name());
//Fetching Dish Image
if(dishDetails.getDish_picture() != null) {
dishImageView.setImageUrl(dishDetails.getDish_picture(), dishImageLoader);
dishImageView.setVisibility(View.VISIBLE);
dishImageView.setResponseObserver(new FeedImageView.ResponseObserver(){
@Override
public void onError() {
Log.d(OrderUpdateConfig.TAG,"The IMG URL met an error");
}
@Override
public void onSuccess() {
Log.d(OrderUpdateConfig.TAG,"The IMG URL was loaded successfully ");
}
});
}else{
dishImageView.setVisibility(View.GONE);
}
return convertView;
}
布局文件如下: -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ListView
android:id="@android:id/list"
android:layout_weight="1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:divider="@null"/>
</LinearLayout>
列表元素的布局文件: -
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/input_login_hint"
android:descendantFocusability="blocksDescendants"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/tv_dish_explore"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="5dp"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:paddingTop="13dp"/>
<TextView
android:id="@+id/tv_dish_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingBottom="10dp"
android:paddingLeft="15dp"
android:paddingRight="15dp"/>
<com.example.saunakc.utils.FeedImageView
android:id="@+id/image_dish_pic"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:scaleType="fitXY"
android:visibility="visible" />
</LinearLayout>
</LinearLayout>