TextViews 未在 gridLayout 中显示 - Android

Question

我在将自定义视图添加到 GridLayout 时遇到了这个奇怪的问题。我的自定义视图中的所有文本视图都被隐藏（或消失，不知道），当我单击我的自定义视图时，它们会出现。

这是我的自定义视图：

public class SequenceVOView : LinearLayout
{
    TextView lblTitle;
    TextView lblTheme;
    TextView lblDeadline;
    List<ImageView> stars;
    ImageView imgSequenceBadge;
    ImageView imgRightArrow;
    private QuestionSequenceVO _sequence;
    public QuestionSequenceVO Sequence {
        get {
            return this._sequence;
        }
        set {
            _sequence = value;
        }
    }
    public SequenceVOView (Context context) :
        base (context)
    {
        Initialize ();
    }
    public SequenceVOView () :
    base (Application.Context)
    {
        Initialize ();
    }

    public SequenceVOView (Context context, IAttributeSet attrs) :
        base (context, attrs)
    {
        Initialize ();
    }

    public SequenceVOView (Context context, IAttributeSet attrs, int defStyle) :
        base (context, attrs, defStyle)
    {
        Initialize ();
    }

    void Initialize ()
    {
        LayoutInflater inflater = (LayoutInflater)Context.GetSystemService (Context.LayoutInflaterService);
        View view = inflater.Inflate (Resource.Layout.SequenceVOFragmentLayout, this);
        lblTitle = FindViewById<TextView> (Resource.Id.lblSequenceSubject);
        lblTheme = FindViewById<TextView> (Resource.Id.lblSequenceTheme);
        lblDeadline = FindViewById<TextView> (Resource.Id.lblDeadline);
        stars = new List<ImageView> ();
        stars.Add(FindViewById<ImageView> (Resource.Id.imgSequenceStar1));
        stars.Add(FindViewById<ImageView> (Resource.Id.imgSequenceStar2));
        stars.Add(FindViewById<ImageView> (Resource.Id.imgSequenceStar3));
        stars.Add(FindViewById<ImageView> (Resource.Id.imgSequenceStar4));
        stars.Add(FindViewById<ImageView> (Resource.Id.imgSequenceStar5));
        foreach (var item in stars) {
            item.SetImageResource (Resource.Drawable.difficultyStar);
            item.Visibility = ViewStates.Invisible;
        }
        imgRightArrow = FindViewById<ImageView>(Resource.Id.imgSequenceRightArrow);
        imgSequenceBadge = FindViewById<ImageView>(Resource.Id.imgSequenceBadge);
    }
    public void setData(QuestionSequenceVO sequence){
        _sequence = sequence;
        lblTitle.Text = sequence.Subject;
        lblTheme.Text = sequence.Category;
        lblDeadline.Text = sequence.DueDate;
        for (int i = 0; i < sequence.Difficulty; i++) {
            stars [i].Visibility = ViewStates.Visible;
        }
        imgRightArrow.SetImageResource (Resource.Drawable.arrowRight);
        imgSequenceBadge.SetImageResource (Resource.Drawable.imgVragenreeks);
    }
}

奇怪的是：我的图片显示正确。有什么想法吗？

编辑： 显然在 gridView 和 gridLayout 中，Textviews 在未选中时设置为白色，如果选中则设置为黑色。当它将我的主题更改为默认主题时找到它。

Answer 1

显示 ImageView 是因为您创建了一个以 ImageView 作为元素 (stars = new List<ImageView> ();) 的列表。如果您想同时显示 ImageView 和 TextView，我建议您创建一个显示自定义网格对象的自定义 GridView。可以在此处找到有关如何完成此操作的优秀教程：http://www.learn2crack.com/2014/01/android-custom-gridview.html

Answer 2

显然，在 gridView 和 gridLayout 中，Textview 未选中时设置为白色，选中时设置为黑色。当它将我的主题更改为默认主题时找到它。

TextViews 未在 gridLayout 中显示 - Android

TextViews not shown in gridLayout - Android

android

xamarin