Hallo meine Customlist-Ansicht zeigt nur einen Datensatz. Alles ist in Ordnung, es zeigt mehrere Datensätze in der Konsole, aber wenn ich versuche, die Datensätze in ListView
zeigen, zeigt es nur letzten Datensatz seiner überschreiben ersten Datensatz, derzeit gibt es zwei Datensätze, die in meiner Konsole angezeigt werden, aber in ListView
zeigt es nur letzten Datensatz, Ich suche seit gestern eine Lösung, ich habe mehr als 6 Stunden damit verbracht, dieses Problem zu lösen.Benutzerdefiniertes ListView zeigt nur einen Datensatz an
Cart_Adapter.java
public class Cart_Adapter extends BaseAdapter {
Activity activity;
ArrayList<ProductBean> list;
String abc;
public Cart_Adapter(Activity activity, ArrayList<ProductBean> list) {
this.activity = activity;
this.list = list;
}
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
View v=view;
if(v==null){
LayoutInflater layoutInflater= (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v=layoutInflater.inflate(R.layout.cartxml,null);
}
TextView title=(TextView) v.findViewById(R.id.title);
TextView size=(TextView) v.findViewById(R.id.size);
TextView color=(TextView) v.findViewById(R.id.color);
Button remove=(Button) v.findViewById(R.id.remove);
ImageView imageView=(ImageView) v.findViewById(R.id.imageView);
title.setText(list.get(i).getTitle());
size.setText(list.get(i).getSize());
color.setText(list.get(i).getColor());
ArrayList<ImagesBean> aa =list.get(i).getImagesList();
if(aa!=null){
for(i=0; i<aa.size(); i++) {
abc = String.valueOf(aa.get(i).getImgone());
System.out.println("--testing" + abc);
}
}
System.out.println("===="+abc);
if(abc !=null) {
imageView.setImageBitmap(getBitmapFromString(abc));
// imageView.setImageBitmap(getBitmapFromString(list.get(i).getImagesList()));
}else{}
return v;
}
private Bitmap getBitmapFromString(String encode){
byte[] b = Base64.decode(encode,Base64.DEFAULT);
return BitmapFactory.decodeByteArray(b,0,b.length);
}
}
Klasse von wo ich bin immer Datenbankeintrag
ArrayList<String> arrayList=mydatabase.getpid(userid);
System.out.println("--outside"+arrayList);
for(int i =0; i<arrayList.size(); i++) {
String l = arrayList.get(i);
final String ll = l.toString().replace("[", "").replace("]", "").replace(" ", "");
System.out.println("--before loop" + ll);
for (String s : ll.split(",")) {
int pid = Integer.parseInt(s);
myadapter = new Cart_Adapter(Cart.this, mydatabase.getproduct_details(pid));
lv.setAdapter(myadapter);
}
}
Activity_cart.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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"
tools:context="com.example.bhm.ishopping.Cart">
<android.support.constraint.ConstraintLayout
android:id="@+id/customlayout"
android:layout_width="410dp"
android:layout_height="63dp"
android:layout_marginStart="8dp"
android:background="#39a423"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.617"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="@+id/textView15"
android:layout_width="86dp"
android:layout_height="29dp"
android:layout_marginStart="320dp"
android:textColor="@android:color/holo_blue_bright"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
tools:layout_editor_absoluteY="16dp" />
</android.support.constraint.ConstraintLayout>
<TextView
android:id="@+id/textView19"
android:layout_width="171dp"
android:layout_height="34dp"
android:layout_marginEnd="120dp"
android:layout_marginTop="76dp"
android:text="Your Cart Detail"
android:textColor="@android:color/black"
android:textSize="22sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ListView
android:id="@+id/lv"
android:layout_width="373dp"
android:layout_height="411dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="20dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.4"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/customlayout" />
<Button
android:id="@+id/submit"
android:layout_width="230dp"
android:layout_height="wrap_content"
android:layout_marginStart="76dp"
android:layout_marginTop="40dp"
android:text="Submit Your Order"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/lv" />
</android.support.constraint.ConstraintLayout>
210 Cart.xml
<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/imageView"
android:layout_width="99dp"
android:layout_height="87dp"
android:layout_alignParentStart="true"
android:layout_alignTop="@+id/remove"
android:layout_marginStart="16dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/ic_launcher_background" />
<TextView
android:id="@+id/textView16"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/imageView"
android:layout_marginStart="15dp"
android:layout_toEndOf="@+id/imageView"
android:text="Ttile"
android:textColor="@android:color/background_dark"
android:textSize="18sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.456"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/textView17"
android:layout_width="wrap_content"
android:layout_height="24dp"
android:layout_alignParentTop="true"
android:layout_alignStart="@+id/textView16"
android:layout_marginTop="102dp"
android:text="Color"
android:textColor="@android:color/black"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView16" />
<TextView
android:id="@+id/textView18"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="@+id/textView17"
android:layout_below="@+id/textView17"
android:text="Size"
android:textColor="@android:color/black"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/textView17" />
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="@+id/size"
android:layout_alignTop="@+id/remove"
android:text="TextView"
android:textColor="@android:color/black"
android:textSize="18sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/color"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/imageView"
android:layout_alignStart="@+id/size"
android:text="TextView"
android:textColor="@android:color/black"
android:textSize="18sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@+id/title" />
<TextView
android:id="@+id/size"
android:layout_width="wrap_content"
android:layout_height="21dp"
android:layout_above="@+id/textView18"
android:layout_marginEnd="26dp"
android:layout_toStartOf="@+id/remove"
android:text="TextView"
android:textColor="@android:color/black"
android:textSize="18sp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/color" />
<Button
android:id="@+id/remove"
android:layout_width="46dp"
android:layout_height="67dp"
android:layout_alignBottom="@+id/size"
android:layout_alignParentEnd="true"
android:layout_marginEnd="13dp"
android:background="#5d8f37"
android:text="X"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</RelativeLayout>
Konsolenausgabe zeigt zwei Datensätze
enter code here System.out: ===pids1 System.out: ==database record[ProductBean{id='', title='ddd', color='dff', size='Select Size', type='Shart', cost='ddf', imagesList=null System.out: ===pids2 System.out: ==database record[ProductBean{id='', title='aa', color='aa', size='Select Size', type='Select Type', cost='aa', imagesList=null}]
'cartxml' zeigen Sie Ihre Layout-Datei –
i XML-Datei des Adapters und Aktivität hinzugefügt haben auch –