简单的ListView选择题的Andr​​oid [英] simple ListView Multiple choice Android

问题描述

我开发板球的应用程序。我的要求是这样的，如果我选择团队1个可用的国名的列表中有显示，如果我从印度选择国名印度选手的名单显示有和，我有选择的多的球员。我所做的一切。但我的问题是我使用android.R.layout.simple_list_item_multiple_choice选择的球员。我使用的简单列表视图和列表的背景是黑色图像。而我的列表视图就是这样

 ＆LT; ListView控件
    机器人：ID =@ + ID /列表
    机器人：layout_width =FILL_PARENT
    机器人：layout_height =0dp
    机器人：layout_weight =8.5
    机器人：cacheColorHint =＃00000000     /＆GT;
 

现在的问题是，在ListView值呈现黑色。我已经有黑色的背景图像。和的值也黑色。所以它不是看起来很不错。如何列表视图值的颜色更改为白色无改变O自定义的适配器。

这是我的适配器类

 适配器=新ArrayAdapter＆LT;串GT;（这一点，android.R.layout.simple_list_item_multiple_choice，playersName）;
    lvview.setChoiceMode（ListView.CHOICE_MODE_MULTIPLE）;
    lvview.setAdapter（适配器）;
 

解决方案

您必须创建Custome 的TextView 来改变所有的ListView项目颜色 android.R.layout.simple_list_item_multiple_choice 到 ArrayAdapter 你应该通过自定义>列表项的XML，其具有不同TEXTCOLOR属性。

例如，在文件夹中创建布局custom_list_item.xml：

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
   ＆LT; CheckedTextView的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android
       机器人：ID =@ + ID / TextView的
       机器人：layout_width =FILL_PARENT
       机器人：layout_height =机器人：ATTR /列表preferredItemHeight
       机器人：textAppearance =机器人：ATTR / textAppearanceLarge
       机器人：重力=center_vertical
       安卓：勾选=机器人：ATTR / listChoiceIndicatorSingle
       机器人：paddingLeft =6DIP
       机器人：paddingRight =6DIP
       机器人：文字颜色=＃FF00FF
       /＆GT;
 

然后传递它像适配器如下：

 新ArrayAdapter＆LT;串GT;（这一点，R.layout.custom_list_item，playersName）;
 

编辑：

下面是code这是工作的罚款我已经测试了。

  lv.setAdapter（新ArrayAdapter＆LT;串GT;（这一点，R.layout.custom_list_item，playersName））;
    lv.setBackgroundColor（Color.BLACK）;
    lv.setChoiceMode（ListView.CHOICE_MODE_MULTIPLE）;
    lv.setOnItemClickListener（新OnItemClickListener（）
    {
        @覆盖
        公共无效onItemClick（适配器视图＆LT;＆GT; p_arg0，查看p_arg1，INT p_arg2，长p_arg3）
        {
             my_sel_items =新的String（选定项目）;
                SparseBooleanArray一个= lv.getCheckedItemPositions（）;
                的for（int i = 0; I＆LT; a.size（）;我++）{
                    如果（a.valueAt（ⅰ））{
                        my_sel_items = my_sel_items +，
                                +（字符串）lv.getAdapter（）的getItem（ⅰ）。
                    }
                }
                Log.v（价值观，my_sel_items）;
        }
    }）;
 

列表视图的布局

 ＆LT; ListView控件
                      机器人：ID =@ + ID /安卓名单
                      机器人：layout_marginTop =60dip
                      机器人：layout_width =FILL_PARENT
                      机器人：layout_height =FILL_PARENT
                      机器人：文字颜色=＃000000
                     /＆GT;
 

I am developing an app for cricket. My requirement is like this, if i select team 1 the list of available country name has to display and if i select a country name as India the list of player from India has to displayed and in that i have select a multiple players from that. I have done everything. But my problem is i am using android.R.layout.simple_list_item_multiple_choice for selecting players. I am using simple list view and the background of that list is black image. And my listview is like that

    <ListView
    android:id="@+id/list"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="8.5"
    android:cacheColorHint="#00000000" 

     />

Now the problem is the listview value is showing black in color. Already i have black background image. And the value also black in color. So its not looking good. How to change the color of listview values to white without changing o custom adapter.

And this is my adapter class

 adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,playersName);
    lvview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
    lvview.setAdapter(adapter);

解决方案

You have to create Custome TextView to change color of all ListView items, instead of passing default android.R.layout.simple_list_item_multiple_choice to ArrayAdapter you should pass custom list item XML, which has different TextColor attribute.

For example, created custom_list_item.xml under folder Layout:

   <?xml version="1.0" encoding="utf-8"?>
   <CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
       android:id="@+id/textView"
       android:layout_width="fill_parent"
       android:layout_height="?android:attr/listPreferredItemHeight"
       android:textAppearance="?android:attr/textAppearanceLarge"
       android:gravity="center_vertical"
       android:checkMark="?android:attr/listChoiceIndicatorSingle"
       android:paddingLeft="6dip"
       android:paddingRight="6dip"
       android:textColor="#FF00FF"
       />

Then passed it to adapter like as below:

     new ArrayAdapter<String>(this, R.layout.custom_list_item, playersName);

EDITED:

Here is the code which is working fine i have tested.

   lv.setAdapter(new ArrayAdapter<String>(this, R.layout.custom_list_item, playersName));
    lv.setBackgroundColor(Color.BLACK);
    lv.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
    lv.setOnItemClickListener(new OnItemClickListener()
    {
        @Override
        public void onItemClick(AdapterView<?> p_arg0, View p_arg1, int p_arg2, long p_arg3)
        {
             my_sel_items = new String("Selected Items");
                SparseBooleanArray a = lv.getCheckedItemPositions();
                for (int i = 0; i < a.size(); i++) {
                    if (a.valueAt(i)) {
                        my_sel_items = my_sel_items + ","
                                + (String) lv.getAdapter().getItem(i);
                    }
                }
                Log.v("values", my_sel_items);
        }
    });

Layout of listview

        <ListView
                      android:id="@+id/android:list"
                      android:layout_marginTop="60dip"
                      android:layout_width="fill_parent"
                      android:layout_height="fill_parent"
                      android:textColor="#000000"
                     />

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