Question

我为一些微调器编写了一个自定义适配器，并为我的程序列出了视图。这是代码：

public static class CustomAdapter extends ArrayAdapter<String> {

    private int fontsize;
    private int color;
    private Typeface typeface;
    private int bgcolor = Color.rgb(50, 50, 50);
    private int selectedColor = Color.rgb(50, 50, 50);
    private int selected = -1;

    public CustomAdapter(Context context, int resource, Typeface tf, int colour, int fsize) {
        super(context, resource);
        fontsize = fsize;
        color = colour;
        typeface = tf;
    }

    public void setBackgroundColor(int bg){
        bgcolor = bg;
    }

    public void setSelectedColor(int color){selectedColor = color;}

    public void setSelectedPos(int p){
        selected = p;
        notifyDataSetChanged();
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        TextView v = (TextView)super.getView(position, convertView, parent);
        v.setTypeface(typeface);
        v.setTextSize(fontsize);
        v.setTextColor(color);
        if (position == selected) v.setBackgroundColor(selectedColor);
        else v.setBackgroundColor(bgcolor);
        return v;
    }


    public View getDropDownView(int position,  View convertView,  ViewGroup parent) {
        TextView v = (TextView)super.getDropDownView(position, convertView, parent);
        v.setTypeface(typeface);
        v.setTextSize(fontsize);
        v.setTextColor(color);
        v.setBackgroundColor(bgcolor);
        return v;
    }

}

现在我想要做的是控制文本在我返回的文本视图中的实际设置方式。更具体地说，我想在我的应用程序的其他普通文本视图中使用SpannableString Builder。像这样：

    SpannableStringBuilder textstring = new SpannableStringBuilder();
    Aux.addText(textstring,cardInfo,Colors.White,Dim.TEXTSIZE_TEXTVIEW,Fonts.Normal);
    text.setText(textstring, TextView.BufferType.SPANNABLE);

我想像这样编写适配器的每个项目。可以这样做吗？如果有人能告诉我怎么做的话，我会很乐意。

Answer 1

以为我会回答我自己的问题，因为我找到了解决方案。关键是在构造函数中传递字符串列表，然后返回视图和下拉视图，并在相应的文本中添加了spannable字符串构建器。这是我的自定义适配器：

  public static class CustomAdapter extends ArrayAdapter<String> {

    private int fontsize;
    private int color;
    private Typeface typeface;
    private int bgcolor = Color.rgb(50, 50, 50);
    private int selectedColor = Color.rgb(50, 50, 50);
    private int selected = -1;
    private boolean setColor = false;
    private List<String> data;

    public CustomAdapter(Context context, int resource, Typeface tf, int colour, int fsize, List<String> labels) {
        super(context, resource,labels);
        fontsize = fsize;
        color = colour;
        typeface = tf;
        data = labels;
    }

    public void setBackgroundColor(int bg){
        bgcolor = bg;
        setColor = true;
    }

    public void setSelectedColor(int color){
        selectedColor = color;
        setColor = true;
    }

    public void setSelectedPos(int p){
        selected = p;
        notifyDataSetChanged();
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        TextView v = (TextView)super.getView(position, convertView, parent);
        SpannableStringBuilder texter = new SpannableStringBuilder();
        Aux.addText(texter,data.get(position),color,fontsize,typeface);
        if (v != null) {
            v.setText(texter, TextView.BufferType.SPANNABLE);
            if (setColor) {
                if (position == selected) v.setBackgroundColor(selectedColor);
                else v.setBackgroundColor(bgcolor);
            }
        }
        return v;
    }


    public View getDropDownView(int position,  View convertView,  ViewGroup parent) {
        TextView v = (TextView)super.getDropDownView(position, convertView, parent);
        SpannableStringBuilder texter = new SpannableStringBuilder();
        Aux.addText(texter, data.get(position), color, fontsize, typeface);
        if (v != null) {
            v.setText(texter, TextView.BufferType.SPANNABLE);
            if (setColor) {
                if (position == selected) v.setBackgroundColor(selectedColor);
                else v.setBackgroundColor(bgcolor);
            }
        }
        return v;
    }

}

控制如何在Android上将文本写入微调器和列表

1 个答案: