自定义对话框里面有单项选择列表项 [英] Customize dialog which has single-choice list items
本文介绍了自定义对话框里面有单项选择列表项的处理方法，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
我创建了一个对话框与单项选择列表中的项目：
I created a Dialog with single-choice list items:
final CharSequence[] items = {"Red", "Green", "Blue"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Colors");
builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
Toast.makeText(getApplicationContext(), items[item], Toast.LENGTH_SHORT).show();
}
});
AlertDialog alert = builder.create();
alert.show();
我如何可以自定义此对话框的布局，使该对话框中的每个列表项由图标和文字。如何在对话框的列表中创建自定义布局？
How can I customize the layout of this dialog so that each list item in the dialog consists of a icon and a text. How to create custom layout for the list on the dialog?
推荐答案
有关创建自定义对话框步骤：
Steps for Creating customize dialog:
-
创建对话框布局文件，如：
Create the dialog box layout files, like:
<RelativeLayout xmlns:android = "http://schemas.android.com/apk/res/android"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content">
<!-- The Title Bar -->
<LinearLayout
android:id = "@+id/ dlg_priority_titlebar"
android:orientation = "horizontal"
android:layout_width = "fill_parent"
android:layout_height = "wrap_content"
android:layout_alignParentTop = "true">
<ImageView
android:src = "@drawable/image"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:layout_margin the "5dip" />
<TextView
android:layout_width = "wrap_content
android:layout_height = "wrap_content"
android:text = "Select Task Priority"
android:layout_gravity = "center_vertical" />
</LinearLayout>
<ListView
android:id = "@+id/dlg_priority_lvw "
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:layout_below = "@+id/dlg_priority_titlebar"
the android:background = "@drawable/layout_home_bg">
</ListView>
</RelativeLayout>
由于在的ListView 自定义布局，所以要创造一个布局文件中的的ListView ：
Because the layout in the ListView custom, so to create a layout file for the ListView:
<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"
android:orientation = "horizontal"
android:layout_width = "fill_parent"
android:layout_height = "fill_parent">
<ImageView
android:id = "@+id/list_priority_img"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:layout_gravity = "center_vertical"
android:layout_margin = "5dip" />
<TextView
android:id = "@+id/list_priority_value"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:layout_gravity = "center_vertical"
android:textsize = "28dip"
android:textColor = "@drawable/ black" />
</LinearLayout>
创建一个自定义的对话框类 PriorityDlg 从对话继承
公共类PriorityDlg扩展对话框{
public class PriorityDlg extends Dialog {
private Context context;
private ListView dlg_priority_lvw = null;
public PriorityDlg(Context context) {
super(context);
this.context = context;
// TODO Auto-generated constructor stub
}
public PriorityDlg(Context context, int theme) {
super(context, theme);
this.context = context;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
this.setContentView(R.layout.dlg_priority);
dlg_priority_lvw = (ListView) findViewById(R.id.dlg_priority_lvw);
// ListView
SimpleAdapter adapter = new SimpleAdapter(context, getPriorityList(),
R.layout.lvw_priority, new String[] { "list_priority_img",
"list_priority_value" }, new int[] {
R.id.list_priority_img, R.id.list_priority_value });
dlg_priority_lvw.setAdapter(adapter);
//ListView
dlg_priority_lvw
.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int arg2, long arg3) {
}
});
}
private List<HashMap<String, Object>> getPriorityList() {
List<HashMap<String, Object>> priorityList = new ArrayList<HashMap<String, Object>>();
HashMap<String, Object> map1 = new HashMap<String, Object>();
map1.put("list_priority_img", R.drawable.priority_not_important);
map1.put("list_priority_value", context.getResources().getString(
R.string.dlg_priority_not_important));
priorityList.add(map1);
HashMap<String, Object> map2 = new HashMap<String, Object>();
map2.put("list_priority_img", R.drawable.priority_general);
map2.put("list_priority_value", context.getResources().getString(
R.string.dlg_priority_general));
priorityList.add(map2);
HashMap<String, Object> map3 = new HashMap<String, Object>();
map3.put("list_priority_img", R.drawable.priority_important);
map3.put("list_priority_value", context.getResources().getString(
R.string.dlg_priority_important));
priorityList.add(map3);
HashMap<String, Object> map4 = new HashMap<String, Object>();
map4.put("list_priority_img", R.drawable.priority_very_important);
map4.put("list_priority_value", context.getResources().getString(
R.string.dlg_priority_very_important));
priorityList.add(map4);
return priorityList;
}
}
要创建一个自定义对话框
To create a custom dialog box
PriorityDlg dlg = new PriorityDlg (SimpleTaskActivity.this, R.style.dlg_priority);
dlg.show();
其中， R.style.dlg_priority 设置对话框使用样式文件，只是让对话框删除标题栏，当然你也可以code到完成这个效果：
Where R.style.dlg_priority set the dialog box uses the style file, just let the dialog box to remove the title bar, and of course you can code to complete this effect:
<? Xml version = "1.0" encoding = "utf-8"?>
<resources>
<style name="dlg_priority" parent="@android:Theme.Dialog">
<item name = "android: windowNoTitle"> true </ item>
</ style>
</ resources>
这篇关于自定义对话框里面有单项选择列表项的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
