Android旋转器每行的背景不同 [英] Android Spinner different background for each row

问题描述

我知道这个主题已经解决了很多次，我发现了几个问题，但我不能满足我的需要。我想在旋转器中有一个颜色列表。我这样做，但我的微调框是空的。
在我的OnCreate（）：

  spinner =（Spinner）findViewById（R.id.Spinner1）; 
 ArrayAdapter< CharSequence> adapter = ArrayAdapter.createFromResource（this，
 R.array.androidcolors，android.R.layout.simple_spinner_item）; 
 
 adapter.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）; 
 
 spinner.setAdapter（adapter）; 
  

在文件夹值中，我创建了一个文件colors.xml：

 < resources> 
 
< item name =bluetype =color>＃FF33B5E5< / item> 
< item name =purpletype =color>＃FFAA66CC< / item> 
< item name =greentype =color>＃FF99CC00< / item> 
< item name =orangetype =color>＃FFFFBB33< / item> 
< item name =redtype =color>＃FFFF4444< / item> 
< item name =darkbluetype =color>＃FF0099CC< / item> 
< item name =darkpurpletype =color>＃FF9933CC< / item> 
< item name =darkgreentype =color>＃FF669900< / item> 
< item name =darkorangetype =color>＃FFFF8800< / item> 
< item name =darkredtype =color>＃FFCC0000< / item> 
 
< integer-array name =androidcolors> 
< item> @ color / blue< / item> 
< item> @ color / purple< / item> 
< item> @ color / green< / item> 
< item> @ color / orange< / item> 
< item> @ color / red< / item> 
< item> @ color / darkblue< / item> 
< item> @ color / darkpurple< / item> 
< item> @ color / darkgreen< / item> 
< item> @ color / darkorange< / item> 
< item> @ color / darkred< / item> 
< / integer-array> 
  

解决方案>

这很容易，你必须

1.为自定义转换器编写自定义适配器，这里是如何做的

  class SpinnerAdapter extends BaseAdapter 
 {
 ArrayList< Integer>颜色; 
上下文上下文; 
 
 public SpinnerAdapter（Context context）
 {
 this.context = context; 
 colors = new ArrayList< Integer>（）; 
 int retrieve [] = context.getResources（）。getIntArray（R.array.androidColors）; 
 for（int re：retrieve）
 {
 colors.add（re）; 
} 
} 
 @Override 
 public int getCount（）
 {
 return colors.size（）; 
} 
 @Override 
 public Object getItem（int arg0）
 {
 return colors.get（arg0）; 
} 
 @Override 
 public long getItemId（int arg0）
 {
 return arg0; 
} 
 @Override 
 public View getView（int pos，View view，ViewGroup parent）
 {
 LayoutInflater inflater = LayoutInflater.from 
 view = inflater.inflate（android.R.layout.simple_spinner_dropdown_item，null）; 
 TextView txv =（TextView）view.findViewById（android.R.id.text1）; 
 txv.setBackgroundColor（colors.get（pos））; 
 txv.setTextSize（20f）; 
 txv.setText（Text+ pos）; 
 return view; 
} 
 
} 
  

  spnColors =（Spinner）findViewById（R.id.spnColor）; 
 spnColors.setAdapter（new SpinnerAdapter（this））; 
  

最终结果是

请接受回答，如果有帮助！ p>

I know that this topic has been addressed many times, I found several questions like this but I can not fit my need. I want to have a list of colors in a spinner. I did so, but my spinner is empty. in my OnCreate():

 spinner = (Spinner) findViewById(R.id.Spinner1); 
     ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this,
                R.array.androidcolors, android.R.layout.simple_spinner_item);

        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

        spinner.setAdapter(adapter); 

and In folder values I created a file colors.xml:

<resources>

<item name="blue" type="color">#FF33B5E5</item>
<item name="purple" type="color">#FFAA66CC</item>
<item name="green" type="color">#FF99CC00</item>
<item name="orange" type="color">#FFFFBB33</item>
<item name="red" type="color">#FFFF4444</item>
<item name="darkblue" type="color">#FF0099CC</item>
<item name="darkpurple" type="color">#FF9933CC</item>
<item name="darkgreen" type="color">#FF669900</item>
<item name="darkorange" type="color">#FFFF8800</item>
<item name="darkred" type="color">#FFCC0000</item>

<integer-array name="androidcolors">
    <item>@color/blue</item>
    <item>@color/purple</item>
    <item>@color/green</item>
    <item>@color/orange</item>
    <item>@color/red</item>
    <item>@color/darkblue</item>
    <item>@color/darkpurple</item>
    <item>@color/darkgreen</item>
    <item>@color/darkorange</item>
    <item>@color/darkred</item>
</integer-array>

解决方案

It's easy , you have to

1.Write your own custom adapter for spinner, here is how you do it

class SpinnerAdapter extends BaseAdapter
{
    ArrayList<Integer> colors;
    Context context;

    public SpinnerAdapter(Context context) 
    {
        this.context=context;
        colors=new ArrayList<Integer>();
        int retrieve []=context.getResources().getIntArray(R.array.androidColors);
        for(int re:retrieve)
        {
            colors.add(re);
        }
    }
    @Override
    public int getCount() 
    {
        return colors.size();
    }
    @Override
    public Object getItem(int arg0) 
    {
            return colors.get(arg0);
    }
    @Override
    public long getItemId(int arg0) 
    {
        return arg0;
    }
    @Override
    public View getView(int pos, View view, ViewGroup parent) 
    {
        LayoutInflater inflater=LayoutInflater.from(context);
        view=inflater.inflate(android.R.layout.simple_spinner_dropdown_item, null);
        TextView txv=(TextView)view.findViewById(android.R.id.text1);
        txv.setBackgroundColor(colors.get(pos));
        txv.setTextSize(20f);
        txv.setText("Text  "+pos);
        return view;
    }

}

2.Set the adapter like this

spnColors=(Spinner)findViewById(R.id.spnColor);
spnColors.setAdapter(new SpinnerAdapter(this));

Final Result is

Do Accept Answer, If it helps!

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