Android的ListView的文本颜色 | Android的ListView的文本颜色

本文介绍了Android的ListView的文本颜色的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我试图设置ListView的文字颜色为黑色。由于我使用的是白色背景。

i am trying to set the ListView TextColor to Black. Since i am using a White Background.

下面是我的MailActivity

Here is my MailActivity

public class MailActivity extends ListActivity {

    String[] listItems = { "Compose", "Inbox", "Drafts", "Sent" };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mails);
        setListAdapter(new ArrayAdapter(this,
                android.R.layout.simple_list_item_1, listItems));

    }
}

和我的XML

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:background="#FFFFFF">
    <ListView android:id="@android:id/list" android:layout_width="fill_parent"
        android:layout_height="wrap_content"/>
    <TextView android:id="@android:id/empty" android:layout_width="wrap_content"
        android:layout_height="wrap_content" android:text="Empty set" android:textColor="#000000" />
</LinearLayout>

我得到的背景为白色。但我不知道在哪里设置前景色为黑色。试图在XML和看起来像它没有帮助

i get the background as white. but am not sure where to set foreground to black. tried in the xml and looks like its not helping

推荐答案

确定这里有一些事情，你应该是清楚的：

Ok here are some thing that you should be clear about:

的背景色在XML文件中要设置为活动的和不ListItems的你正在试图定义。
每个列表项都有自己的布局文件，它应该使用的是复杂的布局列表项传递或充气，以防万一。

我试着用code示例说明这一点：

I try to explain this with a code sample :

*的的让我们开始与ListItems的布局 * 的：它保存在你的Android项目的 RES /布局文件夹具有发言权的 list_black_text.xml

*Lets start with ListItems layout *: save it in your res/layout folder of you android project with say list_black_text.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Definig a container for you List Item-->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:gravity="center_vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!-- Defining where should text be placed. You set you text color here-->
<TextView
android:id="@+id/list_content"
android:textColor="#000000"
android:gravity="center"
android:text="sample"
android:layout_margin="4dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>

</LinearLayout>

好了的TextView 是precise一个简单的布局。你必须有一个分配给TextView的一个ID，才能使用它。

Well a simple layout with a TextView to be precise. You must have an id assigned to TextView, in order to use it.

现在来到你的屏幕/活动/首席布局，我说你要定义背景，你的屏幕与安卓背景属性。我看你已经定义了一个文本视图有作为，我怀疑你正试图确定there.Which不是在所有需要的内容/列表项。

Now coming to you screen/activity/chief layout, as I said you are defining background to you screen with android:background attribute. I see you have defined a text view there as well and I suspect you are trying to define content/list item there.Which is not at all needed.

继承人你编辑的布局，

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:background="#FFFFFF">
<ListView android:id="@android:id/list" android:layout_width="fill_parent"
    android:layout_height="wrap_content"/>
<!-- REMOVED TEXT VIEW, AND KEEPING BACKGROUND WHITE -->
</LinearLayout>

和最后最重要的是设置您的适配器。

And lastly most important is to set your adapter.

setListAdapter(new ArrayAdapter<String>(
            this,R.layout.list_black_text,R.id.list_content, listItems));

您必须注意它们传递给适配器 R.layout.list_black_text 和 R.id.list_content 是TextView的ID，我们宣布。我也改变了ArrayAdapter为String类型，因为其通用的。

You must notice the layout resource which are passing to adapter R.layout.list_black_text and R.id.list_content is TextView ID we declared. I have also changed ArrayAdapter to String type since its generic.

我希望这说明了一切。马克，如果你同意我的回答接受。

I hope this explains everything. Mark my answer accepted if you agree.

混乱的方式，但一个好的速战速决你也可以用速战速决做，如果你不想与复杂的布局定义等下去。

Messy Way But a Good quick fix You can also do this with a quick fix if you do not want to go ahead with complex layout defining etc.

在实例适配器声明的内部类要做到这一点，这里是code样品：

While instantiating the adapter declare an inner class to do this, here is the code sample:

    ArrayAdapter<String> adapter=new ArrayAdapter<String>(
            this,android.R.layout.simple_list_item_1, listItems){

        @Override
        public View getView(int position, View convertView,
                ViewGroup parent) {
            View view =super.getView(position, convertView, parent);

            TextView textView=(TextView) view.findViewById(android.R.id.text1);

            /*YOUR CHOICE OF COLOR*/
            textView.setTextColor(Color.BLUE);

            return view;
        }
    };
        /*SET THE ADAPTER TO LISTVIEW*/
        setListAdapter(adapter);

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