ANDROID-ListView项目不';不能正常显示
我制作了一个应用程序,正在ANDROID-ListView项目不';不能正常显示,android,listview,Android,Listview,我制作了一个应用程序,正在列表视图中显示图像。我的列表项的高度很小,在列表的第9项中插入几次后,将显示我插入的第一项。为什么会这样 我认为问题不在数据库中,因为当我单击项目并打开详细信息屏幕时,它中的图像是正确的 我不知道是什么问题!有什么想法吗 我的适配器是: public class CustomAdapter extends BaseAdapter { private List<Clothes> items; private Context context;
列表视图中显示图像。我的列表项的高度很小,在列表的第9项中插入几次后,将显示我插入的第一项。为什么会这样
我认为问题不在数据库中,因为当我单击项目并打开详细信息屏幕时,它中的图像是正确的
我不知道是什么问题!有什么想法吗
我的适配器是:
public class CustomAdapter extends BaseAdapter {
private List<Clothes> items;
private Context context;
private LayoutInflater inflater;
public CustomAdapter(Context _context, List<Clothes> _items){
inflater = LayoutInflater.from(_context);
this.items = _items;
this.context = _context;
}
@Override
public int getCount() {
return items.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Clothes clothes = items.get(position);
View view = convertView;
if (view == null) {
view = inflater.inflate(R.layout.cloth_item, null);
TextView category = (TextView) view.findViewById(R.id.tv_category);
TextView size = (TextView) view.findViewById(R.id.tv_size);
TextView style = (TextView) view.findViewById(R.id.tv_style);
TextView brand = (TextView) view.findViewById(R.id.tv_brand);
TextView state = (TextView) view.findViewById(R.id.tv_state);
ImageView photo = (ImageView) view.findViewById(R.id.list_image);
category.setText(clothes.getCategory());
size.setText(clothes.getSize());
style.setText(clothes.getStyle());
brand.setText(clothes.getBrand());
state.setText(clothes.getState());
photo.setImageBitmap(BitmapFactory.decodeFile(clothes.getPhotograph()));
}
return view;
}
}
<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"
tools:context=".MainActivity"
android:background="#ffffff">
<ListView
android:id="@+id/categorized_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fastScrollEnabled="true"
/>
</RelativeLayout>
公共类CustomAdapter扩展了BaseAdapter{
私人清单项目;
私人语境;
私人充气机;
公共CustomAdapter(上下文_上下文,列表_项){
充气器=从(_上下文)开始的充气器;
this.items=\u items;
this.context=\u context;
}
@凌驾
public int getCount(){
返回items.size();
}
@凌驾
公共对象getItem(int位置){
返回位置;
}
@凌驾
公共长getItemId(int位置){
返回位置;
}
@凌驾
公共视图getView(int位置、视图转换视图、视图组父视图){
衣服=物品。获取(位置);
视图=转换视图;
如果(视图==null){
视图=充气机。充气(R.layout.cloth_项,空);
TextView类别=(TextView)view.findViewById(R.id.tv\u类别);
TextView大小=(TextView)view.findViewById(R.id.tv\u大小);
TextView样式=(TextView)view.findViewById(R.id.tv_样式);
TextView品牌=(TextView)view.findviewbyd(R.id.tv_品牌);
TextView状态=(TextView)view.findViewById(R.id.tv_状态);
ImageView照片=(ImageView)view.findViewById(R.id.list\u图像);
category.setText(costs.getCategory());
size.setText(costs.getSize());
style.setText(costs.getStyle());
brand.setText(costs.getBrand());
state.setText(costs.getState());
photo.setImageBitmap(BitmapFactory.decodeFile(costs.getphoto());
}
返回视图;
}
}
我的清单是:
public class CustomAdapter extends BaseAdapter {
private List<Clothes> items;
private Context context;
private LayoutInflater inflater;
public CustomAdapter(Context _context, List<Clothes> _items){
inflater = LayoutInflater.from(_context);
this.items = _items;
this.context = _context;
}
@Override
public int getCount() {
return items.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Clothes clothes = items.get(position);
View view = convertView;
if (view == null) {
view = inflater.inflate(R.layout.cloth_item, null);
TextView category = (TextView) view.findViewById(R.id.tv_category);
TextView size = (TextView) view.findViewById(R.id.tv_size);
TextView style = (TextView) view.findViewById(R.id.tv_style);
TextView brand = (TextView) view.findViewById(R.id.tv_brand);
TextView state = (TextView) view.findViewById(R.id.tv_state);
ImageView photo = (ImageView) view.findViewById(R.id.list_image);
category.setText(clothes.getCategory());
size.setText(clothes.getSize());
style.setText(clothes.getStyle());
brand.setText(clothes.getBrand());
state.setText(clothes.getState());
photo.setImageBitmap(BitmapFactory.decodeFile(clothes.getPhotograph()));
}
return view;
}
}
<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"
tools:context=".MainActivity"
android:background="#ffffff">
<ListView
android:id="@+id/categorized_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fastScrollEnabled="true"
/>
</RelativeLayout>
布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="YourClass"
tools:showIn="@layout/activity_notification">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listViewNotification" />
</RelativeLayout>
创建一个名为list_item.xml的文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ripple="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:id="@+id/notificationMain"
android:gravity="center">
<com.andexert.library.RippleView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/rippleNotification"
ripple:rv_color="@color/rippelColor"
ripple:rv_rippleDuration="200"
ripple:rv_type="rectangle">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="10dp"
android:paddingBottom="10dp">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<com.bonafyd.foruser.forImageLoading.ImageViewRounded
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginRight="10dp"
android:id="@+id/notiAvatar"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:layout_gravity="center"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Notification"
android:textColor="#343434"
android:id="@+id/tvNotification" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Date"
android:textSize="12sp"
android:id="@+id/tvDate" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</com.andexert.library.RippleView>
</RelativeLayout>
自适应
class NotificationAdapter extends BaseAdapter{
ArrayList<NotificationValues> notificationArrayList;
public NotificationAdapter(ArrayList<NotificationValues> list)
{
notificationArrayList = list;
}
@Override
public int getCount() {
return notificationArrayList.size();
}
@Override
public Object getItem(int i) {
return notificationArrayList.get(i);
}
@Override
public long getItemId(int i) {
return 0;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
LayoutInflater inflaterPostPanel = getLayoutInflater();
View row = inflaterPostPanel.inflate(R.layout.notification_list_item, viewGroup, false);
TextView tvNotification = (TextView) row.findViewById(R.id.tvNotification);
TextView tvDate = (TextView) row.findViewById(R.id.tvDate);
RippleView rippleNotification = (RippleView) row.findViewById(R.id.rippleNotification);
ImageViewRounded notiAvatar = (ImageViewRounded) row.findViewById(R.id.notiAvatar);
final NotificationValues notificationValues = notificationArrayList.get(i);
tvNotification.setText(notificationValues.notifText);
tvDate.setText(dbManager.getTimeStampNew(notificationValues.notifDate));
Picasso.with(context).load(notificationValues.avatar).resize(90, 90).centerCrop().into(notiAvatar);
final SharedPreferences pref = context.getSharedPreferences("User", 0);
rippleNotification.setOnRippleCompleteListener(new RippleView.OnRippleCompleteListener() {
@Override
public void onComplete(RippleView rippleView) {
}
});
return row;
}
}
class NotificationAdapter扩展了BaseAdapter{
ArrayList notificationArrayList;
公共通知适配器(ArrayList列表)
{
notificationArrayList=列表;
}
@凌驾
public int getCount(){
返回notificationArrayList.size();
}
@凌驾
公共对象getItem(int i){
返回notificationArrayList.get(i);
}
@凌驾
公共长getItemId(int i){
返回0;
}
@凌驾
公共视图getView(int i、视图视图、视图组视图组){
LayoutFlater充气机PostPanel=GetLayoutFlater();
视图行=充气后面板充气(R.layout.notification\u list\u项,视图组,false);
TextView tvNotification=(TextView)row.findViewById(R.id.tvNotification);
TextView-tvDate=(TextView)row.findViewById(R.id.tvDate);
RippleView rippleNotification=(RippleView)row.findViewById(R.id.rippleNotification);
ImageViewRounded notiAvatar=(ImageViewRounded)row.findViewById(R.id.notiAvatar);
最终NotificationValues NotificationValues=notificationArrayList.get(i);
tvNotification.setText(notificationValues.notifText);
tvDate.setText(dbManager.getTimeStampNew(notificationValues.notifDate));
毕加索.with(context).load(notificationValues.avatar).resize(90,90).centerCrop().into(notiAvatar);
最终SharedReferences pref=context.getSharedReferences(“用户”,0);
rippleNotification.setOnRippleCompleteListener(新的RippleView.OnRippleCompleteListener(){
@凌驾
未完成的公共空白(RippleView RippleView){
}
});
返回行;
}
}
使用此
:
使用视图持有者在listView中绑定视图此问题..这将很有帮助,谢谢大家!是的,只是持有人创造了奇迹!!!!