Android切近实战(七)
边看世界杯，边写博客。记得小时候，去山上玩，翻了两座山，到了一个叫克劳的地方。那里每到六月份，桃子，杏多的很，有时候你坐在树上吃一下午都不会有人来，自然了，那里也就人烟稀少。我当时渴急了，在玉米地边上的牛踩出的蹄窝里喝了一口水，那水真是甘甜哪，忽然觉得脚底下什么在动，抬脚一看，一只螃蟹被我踩到了泥土中。那时候吃野枣，自制枪打野鸡，用套套野兔，在河里捉螃蟹，钓鱼，在洪水中游泳，上山挖药，在山上烤红薯，烤玉米，到了冬天，可以点荒，一盒火柴去见识燎原，这都是经常的事。不知道现在我再去那地方还能不能可以去做这些事情，下周准备回去玩玩，看这些地方是否依然还是那么美丽。
OK，今天我们来看一下如下这个消息管理界面
先上图，看一下android版本的，先登录，登陆界面美化之后还像这么回事
我们看一下短消息管理界面
在这里我们还是要首先看一下WebService端
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public
class
MessageMng : System.Web.Services.WebService
{
[WebMethod]
public
List<MessageEntity> GetMessageEntity(
string
sendUser,
string
receiveUser,
string
title,
string
messageType,
string
startDate,
string
endDate)
{
try
{
return
MessageMngBiz.GetInstance().GetMessageEntity(sendUser, receiveUser, title, messageType, startDate, endDate);
}
catch
{
return
new
List<MessageEntity>();
}
}
}
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我们再看一下Biz层
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public
class
MessageMngBiz
{
static
MessageMngBiz messageMngBiz =
new
MessageMngBiz();
private
MessageMngBiz()
{ }
public
static
MessageMngBiz GetInstance()
{
return
messageMngBiz;
}
public
List<MessageEntity> GetMessageEntity(
string
sendUser,
string
receiveUser,
string
title,
string
messageType,
string
startDateStr,
string
endDateStr)
{
DateTime startDate = DateTime.MinValue;
DateTime endDate = DateTime.MinValue;
if
(!
string
.IsNullOrWhiteSpace(startDateStr))
{
DateTime.TryParse(startDateStr.Trim(),
out
startDate);
}
if
(!
string
.IsNullOrWhiteSpace(endDateStr))
{
DateTime.TryParse(endDateStr.Trim(),
out
endDate);
}
return
MessageMngDAL.GetInstance().GetMessageEntity(sendUser, receiveUser, title, messageType, startDate == DateTime.MinValue ?
null
: (DateTime?)startDate, endDate == DateTime.MinValue ?
null
: (DateTime?)endDate);
}
}
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再看一下DAL
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public
class
MessageMngDAL
{
static
MessageMngDAL messageMngDAL =
new
MessageMngDAL();
private
MessageMngDAL()
{ }
public
static
MessageMngDAL GetInstance()
{
return
messageMngDAL;
}
/// <summary>
///获取短信息
/// </summary>
/// <param name="sendUser">发送者</param>
/// <param name="receiveUser">接收者</param>
/// <param name="title">标题</param>
/// <param name="messageType">类型(未读/已读,已删)</param>
/// <param name="startDate">开始时间</param>
/// <param name="endDate">结束时间</param>
/// <returns></returns>
public
List<MessageEntity> GetMessageEntity(
string
sendUser,
string
receiveUser,
string
title,
string
messageType, DateTime? startDate, DateTime? endDate)
{
bool
isDateSearch = startDate.HasValue && endDate.HasValue;
DirectSpecification<Message> commonSpecification =
new
DirectSpecification<Message>(msg =>
(
string
.IsNullOrEmpty(sendUser) ?
true
: msg.CerateUser == sendUser)
&& (
string
.IsNullOrEmpty(title) ?
true
: msg.Title.Contains(title))
&& (isDateSearch ? (msg.CreateDate >= startDate && msg.CreateDate <= endDate) :
true
)
&& msg.ReceiveUser.Equals(receiveUser));
MessageType messageTypeEnum =
new
MessageTypeIndexes()[messageType];
using
(BonusEntities bonusEntities =
new
BonusEntities())
{
if
(messageTypeEnum == MessageType.READ)
{
DirectSpecification<Message> readMsgSpec =
new
DirectSpecification<Message>(msg => msg.IsDel ==
false
);
AndSpecification<Message> andSpecification =
new
AndSpecification<Message>(commonSpecification, readMsgSpec);
IEnumerable<Message> messageList = bonusEntities.Message.Where(andSpecification.SatisfiedBy());
return
messageList.AsEnumerable().Select(msg =>
new
MessageEntity()
{
TransactionNumber = msg.TransactionNumber,
Title = msg.Title,
MessageContent = msg.MessageContent.Length>50? msg.MessageContent.Substring(0, 50):msg.MessageContent,
CreateUser = msg.UserCreate.UerInfo !=
null
? msg.UserCreate.UerInfo.FirstOrDefault().Name : msg.UserCreate.UseNo,
CreateDate = msg.CreateDate.ToString(),
IsRead = msg.IsRead
}).ToList();
}
if
(messageTypeEnum == MessageType.DELETE)
{
DirectSpecification<Message> delMsgSpec =
new
DirectSpecification<Message>(msg => msg.IsDel ==
true
&& msg.IsDestroy ==
false
);
AndSpecification<Message> andSpecification =
new
AndSpecification<Message>(commonSpecification, delMsgSpec);
IQueryable<Message> messageList = bonusEntities.Message.Where(andSpecification.SatisfiedBy());
return
messageList.AsEnumerable().Select(msg =>
new
MessageEntity()
{
TransactionNumber = msg.TransactionNumber,
Title = msg.Title,
MessageContent = msg.MessageContent.Substring(0, 50),
CreateUser = msg.UserCreate.UerInfo !=
null
? msg.UserCreate.UerInfo.FirstOrDefault().Name : msg.UserCreate.UseNo,
CreateDate = msg.CreateDate.ToString(),
DelDate = msg.DelDate.HasValue? msg.DelDate.ToString():
string
.Empty
}).ToList();
}
return
new
List<MessageEntity>();
}
}
}
public
enum
MessageType
{
READ = 1,
DELETE = 2
}
public
class
MessageTypeIndexes
{
public
Array MessageTypeEnumArray
{
get
{
return
Enum.GetValues(
typeof
(MessageType));
}
}
public
MessageType
this
[
string
msgType]
{
get
{
int
messageType =
int
.Parse(msgType);
return
(MessageType)MessageTypeEnumArray.GetValue(--messageType);
}
}
}
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好了，都是些查询，没什么可说的。
OK，我们现在就来看一下android的实现，我们先看一下前台布局
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<?
xml
version
=
"1.0"
encoding
=
"utf-8"
?>
<
ScrollView
xmlns:android
=
"http://schemas.android.com/apk/res/android"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
android:scrollbars
=
"vertical"
android:fadingEdge
=
"none"
>
<
LinearLayout
xmlns:android
=
"http://schemas.android.com/apk/res/android"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
android:orientation
=
"vertical"
android:background
=
"@color/red1"
>
<
LinearLayout
android:layout_height
=
"wrap_content"
android:layout_width
=
"fill_parent"
android:orientation
=
"vertical"
android:background
=
"@color/teal1"
android:layout_margin
=
"1dp"
>
<
TableLayout
android:layout_height
=
"wrap_content"
android:layout_width
=
"wrap_content"
android:shrinkColumns
=
"1"
android:stretchColumns
=
"1"
android:background
=
"@color/teal"
android:layout_margin
=
"2dp"
>
<
TableRow
>
<
TextView
android:text
=
"@string/labSendUser"
android:textSize
=
"8pt"
android:gravity
=
"right"
android:textColor
=
"@color/white"
>
</
TextView
>
<
EditText
android:id
=
"@+id/txtSendUser"
android:drawableLeft
=
"@drawable/userhint"
android:singleLine
=
"true"
android:maxLength
=
"30"
android:textSize
=
"7pt"
></
EditText
>
</
TableRow
>
<
TableRow
>
<
TextView
android:text
=
"@string/labTitle"
android:gravity
=
"right"
android:textSize
=
"8pt"
android:layout_marginLeft
=
"10pt"
android:textColor
=
"@color/white"
>
</
TextView
>
<
EditText
android:id
=
"@+id/txtTitle"
android:drawableLeft
=
"@drawable/pencil"
android:singleLine
=
"true"
android:maxLength
=
"50"
></
EditText
>
</
TableRow
>
<
TableRow
>
<
CheckBox
android:id
=
"@+id/chkIsDateCheck"
android:text
=
"@string/chkSendDate"
android:textSize
=
"8pt"
android:gravity
=
"center_vertical"
android:layout_gravity
=
"center_vertical"
android:layout_span
=
"2"
></
CheckBox
>
</
TableRow
>
<
TableRow
>
<
TextView
android:text
=
"@string/chkBeginDate"
android:textSize
=
"8pt"
android:textColor
=
"@color/white"
></
TextView
>
<
EditText
android:id
=
"@+id/txtStartDate"
android:singleLine
=
"true"
android:editable
=
"false"
android:drawableRight
=
"@drawable/calander"
></
EditText
>
</
TableRow
>
<
TableRow
>
<
TextView
android:text
=
"@string/chkEndDate"
android:textSize
=
"8pt"
android:textColor
=
"@color/white"
></
TextView
>
<
EditText
android:id
=
"@+id/txtEndDate"
android:singleLine
=
"true"
android:editable
=
"false"
android:drawableRight
=
"@drawable/calander"
></
EditText
>
</
TableRow
>
</
TableLayout
>
<
LinearLayout
android:orientation
=
"horizontal"
android:layout_width
=
"fill_parent"
android:layout_height
=
"wrap_content"
>
<
ImageButton
android:id
=
"@+id/imgBtnSearch"
android:src
=
"@drawable/search"
android:layout_weight
=
"1"
android:layout_width
=
"wrap_content"
android:layout_height
=
"60dp"
android:scaleType
=
"centerInside"
android:layout_marginLeft
=
"5dp"
android:layout_marginBottom
=
"1dp"
></
ImageButton
>
<
ImageButton
android:id
=
"@+id/imgBtnReset"
android:layout_gravity
=
"center_horizontal"
android:layout_weight
=
"1"
android:src
=
"@drawable/undo"
android:layout_width
=
"wrap_content"
android:layout_height
=
"60dp"
android:scaleType
=
"centerInside"
android:layout_marginLeft
=
"10dp"
android:layout_marginRight
=
"5dp"
android:layout_marginBottom
=
"1dp"
></
ImageButton
>
</
LinearLayout
>
</
LinearLayout
>
<
TabHost
android:id
=
"@+id/tabhost"
android:layout_width
=
"fill_parent"
android:layout_height
=
"wrap_content"
>
<
LinearLayout
android:orientation
=
"vertical"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
>
<
TabWidget
android:id
=
"@android:id/tabs"
android:orientation
=
"horizontal"
android:layout_width
=
"fill_parent"
android:layout_height
=
"wrap_content"
/>
<
FrameLayout
android:id
=
"@android:id/tabcontent"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
>
<
HorizontalScrollView
android:layout_height
=
"fill_parent"
android:layout_width
=
"fill_parent"
android:scrollbarAlwaysDrawHorizontalTrack
=
"false"
>
<
TableLayout
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
android:stretchColumns
=
"0"
>
<
TableRow
>
<
bruce.controls.CustomScrollViewer
android:id
=
"@+id/gvMessageInfo"
android:layout_width
=
"fill_parent"
android:layout_height
=
"fill_parent"
>
</
bruce.controls.CustomScrollViewer
>
</
TableRow
>
</
TableLayout
>
</
HorizontalScrollView
>
</
FrameLayout
>
</
LinearLayout
>
</
TabHost
>
</
LinearLayout
>
</
ScrollView
>
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还是使用嵌套布局，在最后我们发现了一个tabHost,是的，这个就是来实现tab页的。我们看到tab页中有一个一行一列的table，里面放了一个bruce.controls.CustomScrollViewer。这个东西其实是我从网上粘出来的一个用于显示表格的自定义控件，这个写的里面还是有些问题，我对其进行了一些修改。
今天主要不是针对这个，所以这个东西等下次我在讲查看短消息功能的时候再说吧。
OK，我们先看一下查询条件，发送人和标题就不看了，时间查询的话，如果勾选了，就必须选择日期
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private
Boolean CheckSearchCriteria(String startDateStr, String endDateStr)
throws
ParseException {
if
(
this
.chkIsDateCheck.isChecked()) {
if
(startDateStr.length() ==
0
) {
this
.ShowToast(
"请选择开始日期！"
);
return
false
;
}
if
(endDateStr.length() ==
0
) {
this
.ShowToast(
"请选择开始日期！"
);
return
false
;
}
SimpleDateFormat dateFormat =
new
SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss"
);
Date startDate = dateFormat.parse(startDateStr +
" 00:00:01"
);
Date endDate = dateFormat.parse(endDateStr +
" 23:59:59"
);
if
(startDate.after(endDate)) {
this
.ShowToast(
"开始日期不能大于结束日期！"
);
return
false
;
}
}
return
true
;
}
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以前我们提示的时候都是使用Alert，现在的话，都是使用toast
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private
void
ShowToast(String content) {
Toast toast = Toast.makeText(getApplicationContext(), content,
Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER,
0
,
0
);
LinearLayout toastContentView = (LinearLayout) toast.getView();
ImageView imgToast =
new
ImageView(getApplicationContext());
imgToast.setAdjustViewBounds(
true
);
imgToast.setImageResource(R.drawable.alert);
toastContentView.addView(imgToast,
0
);
toast.show();
}
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上次的时候我们选择日期是使用Click事件，这次我们使用长按事件。
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txtStartDate.setOnLongClickListener(
new
OnLongClickListener() {
public
boolean
onLongClick(android.view.View view) {
if
(chkIsDateCheck.isChecked()) {
owner.ShowDatePicker(view);
}
return
true
;
}
});
txtEndDate.setOnLongClickListener(
new
OnLongClickListener() {
public
boolean
onLongClick(android.view.View view) {
if
(chkIsDateCheck.isChecked()) {
owner.ShowDatePicker(view);
}
return
true
;
}
});
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如下是ShowDatePicker的代码，这次将这个方法写成公用的。
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private
void
ShowDatePicker(
final
View view) {
Calendar calendar = Calendar.getInstance();
DatePickerDialog dialog =
new
DatePickerDialog(owner,
new
DatePickerDialog.OnDateSetListener() {
public
void
onDateSet(DatePicker dp,
int
year,
int
month,
int
dayOfMonth) {
if
(view
instanceof
EditText) {
((EditText) view).setText(year +
"-"
+ month +
"-"
+ dayOfMonth);
}
}
}, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH),
calendar.get(Calendar.DAY_OF_MONTH));
dialog.show();
}
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OK，以上是查询部分，接下来我们看一下查询结果部分，先是构造tab页。
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private
void
InitTabHost() {
tabHost = (TabHost)
this
.findViewById(R.id.tabhost);
tabHost.setup();
TabSpec specMessageNew = tabHost.newTabSpec(
"tabMessageNew"
);
specMessageNew.setContent(R.id.gvMessageInfo);
specMessageNew.setIndicator(
"已读/未读"
,
this
.getResources().getDrawable(
R.drawable.emailread));
TabSpec specMessageOld = tabHost.newTabSpec(
"tabMessageOld"
);
specMessageOld.setContent(R.id.gvMessageInfo);
specMessageOld.setIndicator(
"已删消息"
,
this
.getResources().getDrawable(
R.drawable.emaildel));
tabHost.addTab(specMessageNew);
tabHost.addTab(specMessageOld);
}
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在这里，我们加了两个tab，setIndicator第一个参数是设置tab标题，第二个参数是设置tab图标。
setContent是设置tab页的内容，这里我们设置的是刚才上面介绍的自定义控件。
好的，我们最后看一下查询部分，调用WebService代码如下
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private
void
SearchMessage()
throws
ParseException {
String startDateStr =
this
.txtStartDate.getText().toString().trim();
String endDateStr =
this
.txtEndDate.getText().toString().trim();
if
(!
this
.CheckSearchCriteria(startDateStr, endDateStr))
return
;
String title = txtTitle.getText().toString().trim();
String sendUser = txtSendUser.getText().toString().trim();
if
(
this
.chkIsDateCheck.isChecked()) {
SimpleDateFormat dateFormat =
new
SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss"
);
startDateStr = startDateStr +
" 00:00:01"
;
endDateStr = endDateStr +
" 23:59:59"
;
}
SoapObject response =
this
.GetMessageEntityList(title, sendUser,
startDateStr, endDateStr, (String.valueOf(tabHost
.getCurrentTab() +
1
)));
HashMap<String, Object> map =
null
;
ArrayList<HashMap<String, Object>> mapList =
new
ArrayList<HashMap<String, Object>>();
for
(
int
i =
0
; i < response.getPropertyCount(); i++) {
SoapObject soapObj = (SoapObject) response.getProperty(i);
map =
new
HashMap<String, Object>();
map.put(
"Title"
, soapObj.getProperty(
"Title"
).toString());
map.put(
"MessageContent"
, soapObj.getProperty(
"MessageContent"
)
.toString());
map.put(
"CreateUser"
, soapObj.getProperty(
"CreateUser"
).toString());
map.put(
"CreateDate"
, soapObj.getProperty(
"CreateDate"
).toString());
Object isReadObj = soapObj.getProperty(
"IsRead"
);
Boolean isRead = Boolean.valueOf(isReadObj.toString());
map.put(
"IsOpen"
, isRead ? R.drawable.folderopen
: R.drawable.ckffolder);
mapList.add(map);
}
this
.BinData(mapList);
}
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在这里我们拿到了webservice返回的数据，调用代码如下
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final
static
String NAMESPACE =
"http://tempuri.org/"
;
final
static
String METHOD_NAME =
"GetMessageEntity"
;
final
static
String SOAP_ACTION =
"http://tempuri.org/GetMessageEntity"
;
final
static
String URL = main.baseIP +
"/MessageMng.asmx?wsdl"
;
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private
SoapObject GetMessageEntityList(String title, String sendUser,
String startDate, String endDate, String messageType) {
SoapObject request =
new
SoapObject(NAMESPACE, METHOD_NAME);
PropertyInfo pi =
new
PropertyInfo();
pi.setName(
"sendUser"
);
pi.setType(String.
class
);
pi.setValue(sendUser);
request.addProperty(pi);
pi =
new
PropertyInfo();
pi.setName(
"receiveUser"
);
pi.setType(String.
class
);
pi.setValue(userNo);
request.addProperty(pi);
pi =
new
PropertyInfo();
pi.setName(
"title"
);
pi.setType(String.
class
);
pi.setValue(title);
request.addProperty(pi);
pi =
new
PropertyInfo();
pi.setName(
"messageType"
);
pi.setType(String.
class
);
pi.setValue(messageType);
request.addProperty(pi);
pi =
new
PropertyInfo();
pi.setName(
"startDate"
);
pi.setType(String.
class
);
pi.setValue(startDate);
request.addProperty(pi);
pi =
new
PropertyInfo();
pi.setName(
"endDate"
);
pi.setType(String.
class
);
pi.setValue(endDate);
request.addProperty(pi);
SoapSerializationEnvelope soapEnvelope =
new
SoapSerializationEnvelope(
SoapEnvelope.VER11);
soapEnvelope.dotNet =
true
;
HttpTransportSE httpTS =
new
HttpTransportSE(URL);
soapEnvelope.bodyOut = httpTS;
soapEnvelope.setOutputSoapObject(request);
// 设置请求参数
// new MarshalDate().register(soapEnvelope);
try
{
httpTS.call(SOAP_ACTION, soapEnvelope);
}
catch
(IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch
(XmlPullParserException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
SoapObject result =
null
;
try
{
result = (SoapObject) soapEnvelope.getResponse();
}
catch
(SoapFault e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return
result;
}
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OK，这些代码都是以前讲过的，在这里就不多说了。我们主要看BinData这个方法
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private
void
BinData(ArrayList<HashMap<String, Object>> mapList) {
String[] headers =
new
String[] {};
if
(mapList.size() >
0
) {
headers = mapList.get(
0
).keySet().toArray(headers);
}
gvMessage.setTableHeaders(
this
.TransferHeader(headers));
gvMessage.setTableCellMaxEms(
5
);
int
[] imgColums = {
1
};
gvMessage.setTableheadColor(R.color.teal);
for
(HashMap<String, Object> hm : mapList) {
gvMessage.addNewRow(hm.values().toArray(), imgColums);
}
}
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第一步先拿出列头，再转成汉字
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private
String[] TransferHeader(String[] headers) {
String[] header=
new
String[]{};
List<String> convertHeaderList =
new
ArrayList<String>();
for
(
int
i =
0
; i < headers.length; i++) {
if
(headers[i] ==
"CreateUser"
) {
convertHeaderList.add(
"发送人"
);
}
if
(headers[i] ==
"Title"
) {
convertHeaderList.add(
"标题"
);
}
if
(headers[i] ==
"IsOpen"
) {
convertHeaderList.add(
"已读/未读"
);
}
if
(headers[i] ==
"CreateDate"
) {
convertHeaderList.add(
"发送日期"
);
}
if
(headers[i] ==
"MessageContent"
) {
convertHeaderList.add(
"消息内容"
);
}
}
return
convertHeaderList.toArray(header);
}
|
然后再循环设置行内容
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for
(HashMap<String, Object> hm : mapList) {
gvMessage.addNewRow(hm.values().toArray(), imgColums);
}
|
这里我们循环ArrayList<HashMap<String,Object>>，然后往表格控件中加数据，第一个参数是内容，第二个参数是图片内容所在的列的数组。OK，运行一下，查询试试
通过查询check之后，我们看看结果
还行吧，OK，今天就到这里，下节我将给大家介绍这个自定义控件和实现
本文转自 BruceAndLee 51CTO博客，原文链接：http://blog.51cto.com/leelei/1426543，如需转载请自行联系原作者
