comment placer une vue personnalisée dans une vue de liste personnalisée pour le fragment de liste

Question

Je dispose d'une disposition personnalisée pour le fragment de liste. Dans cette mise en page personnalisée, je veux mettre une autre vue personnalisée (qui dessine des choses). Donc ma question est: comment ajouter une autre vue à convertView dans la méthode getView(). Voici ma méthode de getView:

private class TrainingAdapter extends ArrayAdapter<Product> 
{ 

    public TrainingAdapter(ArrayList<Product> list) { 
     super(getActivity(), 0, list); 
    } 
    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 
     if(convertView == null) 
     { 
      convertView = getActivity().getLayoutInflater().inflate(R.layout.trainings_custom_layer_listfragment, null); 
     } 

     Product p = getItem(position); 
     //references to text view and image view goes here 
     //begin to work with custom view 
     StarView sv = (StarView) convertView.findViewById(R.id.star_view); 
     return convertView; } 

Voici ma mise en page:

<ImageView android:id="@+id/imageview_product_category" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:contentDescription="mini photo" /> 

<TextView android:id="@+id/textview_training_title" 
    android:layout_height="wrap_content" 
    android:layout_width="wrap_content" 
    android:layout_toRightOf="@id/imageview_product_category" 
    android:textColor="@color/text_color_white" /> 

<TextView android:id="@+id/textview_training_location" 
    android:layout_height="wrap_content" 
    android:layout_width="wrap_content" 
    android:layout_toRightOf="@id/imageview_product_category" 
    android:layout_below="@id/textview_training_title" 
    android:textColor="@color/text_color_white" /> 

<TextView android:id="@+id/textview_training_datetime" 
    android:layout_height="wrap_content" 
    android:layout_width="wrap_content" 
    android:layout_toRightOf="@id/imageview_product_category" 
    android:layout_below="@id/textview_training_location" 
    android:textColor="@color/text_color_white" /> 

<TextView android:id="@+id/textview_training_cost" 
    android:layout_height="wrap_content" 
    android:layout_width="wrap_content" 
    android:layout_toRightOf="@id/imageview_product_category" 
    android:layout_below="@id/textview_training_datetime" 
    android:textColor="@color/text_color_white" /> 

<TextView android:id="@+id/textview_training_registrationenddate" 
    android:layout_height="wrap_content" 
    android:layout_width="wrap_content" 
    android:layout_toRightOf="@id/imageview_product_category" 
    android:layout_below="@id/textview_training_cost" 
    android:textColor="@color/text_color_white" /> 

<jacky.practice.view_custom.StarView 
    android:id="@+id/star_view" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_toRightOf="@id/imageview_product_category" 
    android:layout_below="@id/textview_training_registrationenddate"/> 

code pour une vue personnalisée:

public class StarView extends View { 
private Paint myPaint; 
private int mLevel = 0; 

public StarView(Context context, AttributeSet attrs, int defStyle) { 
    super(context, attrs, defStyle); 
    init(); 
} 

public StarView(Context context, AttributeSet attrs) { 
    super(context, attrs); 
    init(); 
} 

public StarView(Context context) { 
    super(context); 
    init(); 
} 

private void init() 
{ 
    myPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 
    myPaint.setColor(Color.GREEN); 
} 

public void setExpensive(int level) 
{ 
    mLevel = level; 
} 

@Override 
protected void onDraw(Canvas canvas) { 
    super.onDraw(canvas); 
    if(mLevel <= 3) 
    { 
     canvas.drawCircle(20, 20, 8, myPaint); 
    } 
    else if((mLevel > 3) && (mLevel <= 5)) 
    { 
     canvas.drawCircle(20, 20, 8, myPaint); 
     canvas.drawCircle(40, 20, 8, myPaint); 
    } 
    else 
    { 
     canvas.drawCircle(20, 20, 8, myPaint); 
     canvas.drawCircle(40, 20, 8, myPaint); 
     canvas.drawCircle(60, 20, 8, myPaint); 
    } 

    canvas.restore(); 
} 

}

Answer 1

Avez-vous oublié d'implémenter onCreateView?

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.main, null); 
    return view; 
}