Android的使用KSOAP与解析变量的AsyncTask的并获得retured值 [英] Android use Ksoap as an AsyncTask with parse variables and get retured values
本文介绍了Android的使用KSOAP与解析变量的AsyncTask的并获得retured值的处理方法，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
我想用的AsyncTask 为KSOAP作为Thread.because我的应用程序不的Android 3.0或以上，并非Android的2我想任何问题，工作开发这个低于code到从发送参数的AsyncTask类，并获取值。
公共类ReceivedSMS扩展ListFragment实现AbsListView.OnScrollListener { 公开名单＆LT; ReceiveFields＆GT;行; 私人诠释prevVisibleItem; 私人TSMS TSMS; 私人字符串用户名; 私人字符串密码; 众长getLastID; 私人布尔isFirstTime; 私人上下文的背景下; 私人数据库处理器分贝; 私人SQLiteDatabase dbHelper; 私人ViewReceivedSMSDetailes receiveListView;
公共ReceivedSMS（上下文的背景下，字符串username，字符串密码）{ this.username =用户名; this.password =密码; this.context =背景; } 公共ReceivedSMS（字符串的用户名，密码字符串，长开始，长数，上下文的背景下）{ this.username =用户名; this.password =密码; this.context =背景; TSMS =新TSMS（背景下，新用户（this.username，this.password））; 尝试{ getReceivedSMS（启动，计数）; }赶上（例外E1）{ e1.printStackTrace（）; Log.e（错误getReceivedSMS（启动，计数）;，）;
} } 公开名单＆LT; ReceiveFields＆GT; getReceivedSMS（长开始，长计数）抛出UnsupportedEncodingException { TSMS =新TSMS（背景下，新用户（this.username，this.password））; 尝试{ 行= tsms.getReceivedSMS（启动，计数）; saveRowsintoDatabase（行）; }赶上（TException E）{ e.printStackTrace（）; Log.e（的getClass（）的toString（），错误获取短信从WebService的名单，LT; ReceiveFields＆GT; getReceivedSMS（长开始，长数）+将String.valueOf（e）条）; } 返回行;
}
@覆盖
公共无效的onCreate（捆绑savedInstanceState）{ super.onCreate（savedInstanceState）; DB =新数据库处理器（背景）; dbHelper = db.getWritableDatabase（）; setReceivedSMSToListView（）; }}私有类AsyncCallWS扩展的AsyncTask＆LT;太虚，太虚，太虚＆GT; {
@覆盖
保护无效doInBackground（虚空...... PARAMS）{ } @覆盖
保护无效onPostExecute（虚空结果）{ } @覆盖
在preExecute保护无效（）{ } @覆盖
保护无效onProgressUpdate（虚空......值）{ }}
这code不是问题，但我想移动从构造行动 AsyncCallWS ，例如：
1）在此构造：
公共ReceivedSMS（字符串的用户名，密码字符串，长开始，长数，上下文的背景下）{ this.username =用户名; this.password =密码; this.context =背景; TSMS =新TSMS（背景下，新用户（this.username，this.password））; 尝试{ getReceivedSMS（启动，计数）; }赶上（例外E1）{ e1.printStackTrace（）; Log.e（错误getReceivedSMS（启动，计数）;，）;
}}
我想移动：
TSMS =新TSMS（背景下，新用户（this.username，this.password））; 尝试{ getReceivedSMS（启动，计数）; }赶上（例外E1）{ e1.printStackTrace（）; Log.e（错误getReceivedSMS（启动，计数）;，）;
}
到 AsyncCallWS 类和这个构造：
公开名单＆LT; ReceiveFields＆GT; getReceivedSMS（长开始，长计数）抛出UnsupportedEncodingException { TSMS =新TSMS（背景下，新用户（this.username，this.password））; 尝试{ 行= tsms.getReceivedSMS（启动，计数）; saveRowsintoDatabase（行）; }赶上（TException E）{ e.printStackTrace（）; Log.e（的getClass（）的toString（），错误获取短信从WebService的+将String.valueOf（e）条）; } 返回行;
}
可以获取行从 AsyncCallWS 类。 AsyncCallWS 类。
更新后的：
在这个类 doInBackground 函数不允许返回字符串
公共类WSDLHelper {
公共静态字符串调用（SoapObject要求）{
ProcessTask P =新ProcessTask（请求）;
返回p.execute（）;
}
}
类ProcessTask扩展的AsyncTask＆LT;太虚，太虚，SoapObject＆GT; {
SoapObject请求; 公共字符串ProcessTask（SoapObject RQ）{ 请求= RQ; } @覆盖
在preExecute保护无效（）{
super.on preExecute（）;
} @覆盖
保护字符串doInBackground（虚空...... PARAMS）{
字符串结果= NULL; SoapSerializationEnvelope信封=新SoapSerializationEnvelope（SoapEnvelope.VER11）;
envelope.setOutputSoapObject（请求）; AndroidHttpTransport运输=新AndroidHttpTransport（Strings.URL_TSMS）;
transport.debug = TRUE; 尝试{
transport.call（Strings.URL_TSMS + request.getName（），信封）;
。结果= envelope.getResponse（）的toString（）;
}赶上（IOException异常前）{
Log.e（，ex.getMessage（））;
}赶上（XmlPullParserException前）{
Log.e（，ex.getMessage（））;
} 如果（result.equals（将String.valueOf（整数，code_USER_PASS_FALSE）））
返回结果;
其他
返回null;
} @覆盖
保护无效onPostExecute（字符串结果）{ super.onPostExecute（结果）;
}}
解决方案
您必须创建一个的 AsyncTask的第一。
公共类ProcessTask扩展的AsyncTask＆LT;无效，整数，字符串＆GT; {
串S1，S2，S3，S4; 公共ProcessTask（字符串STR1，字符串STR2，字符串STR3，字符串STR4）{
// TODO自动生成构造函数存根
S1 = STR1;
S2 = STR2;
S3 = STR3;
S4 = STR4;
} @覆盖
在preExecute保护无效（）{
// TODO自动生成方法存根
//做一些字符串
super.on preExecute（）;
} @覆盖
保护字符串doInBackground（虚空...... PARAMS）{
// TODO自动生成方法存根 //你解析code 返回null;
} @覆盖
保护无效onPostExecute（字符串结果）{
// TODO自动生成方法存根 super.onPostExecute（结果）;
}
}
称其为：
ProcessTask P =新ProcessTask（S1，S2，S3，S4）;
p.execute（）;
希望这有助于。
要返回列表与LT; ReceiveFields＆GT; ，更改：
公共类ProcessTask扩展的AsyncTask＆LT;无效，整数，字符串＆GT;
到
公共类ProcessTask扩展的AsyncTask＆LT;无效，整数，列表＆LT; ReceiveFields＆GT;＆GT;
您需要删除它返回字符串现有的覆盖方法并重写的正确方法doInBackground，它返回列表。
I want to use AsyncTask for Ksoap as an Thread.because my app don't work in Android 3 or above and that not any problem in Android 2. I want to develop this below code to send parameters to AsyncTask class and get values from that.
public class ReceivedSMS extends ListFragment implements AbsListView.OnScrollListener {
public List<ReceiveFields> rows;
private int prevVisibleItem;
private TSMS tsms;
private String username;
private String password;
public Long getLastID;
private boolean isFirstTime;
private Context context;
private DatabaseHandler db;
private SQLiteDatabase dbHelper;
private ViewReceivedSMSDetailes receiveListView;
public ReceivedSMS(Context context, String username, String password) {
this.username = username;
this.password = password;
this.context = context;
}
public ReceivedSMS(String username, String password, long start, long count, Context context) {
this.username = username;
this.password = password;
this.context = context;
tsms = new TSMS(context, new User(this.username, this.password));
try {
getReceivedSMS(start, count);
} catch (Exception e1) {
e1.printStackTrace();
Log.e("Error in getReceivedSMS(start, count); ", "");
}
}
public List<ReceiveFields> getReceivedSMS(long start, long count) throws UnsupportedEncodingException {
tsms = new TSMS(context, new User(this.username, this.password));
try {
rows = tsms.getReceivedSMS(start, count);
saveRowsintoDatabase( rows );
} catch (TException e) {
e.printStackTrace();
Log.e(getClass().toString(), "ERROR IN Fetch SMS From WebService List<ReceiveFields> getReceivedSMS(long start, long count) "+ String.valueOf(e));
}
return rows;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
db = new DatabaseHandler(context);
dbHelper = db.getWritableDatabase();
setReceivedSMSToListView();
}
}
private class AsyncCallWS extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
}
@Override
protected void onPostExecute(Void result) {
}
@Override
protected void onPreExecute() {
}
@Override
protected void onProgressUpdate(Void... values) {
}
}
this code is not problem but i want to move action from constructors to AsyncCallWS such as :
1) in this constructor:
public ReceivedSMS(String username, String password, long start, long count, Context context) {
this.username = username;
this.password = password;
this.context = context;
tsms = new TSMS(context, new User(this.username, this.password));
try {
getReceivedSMS(start, count);
} catch (Exception e1) {
e1.printStackTrace();
Log.e("Error in getReceivedSMS(start, count); ", "");
}
}
i want to move:
tsms = new TSMS(context, new User(this.username, this.password));
try {
getReceivedSMS(start, count);
} catch (Exception e1) {
e1.printStackTrace();
Log.e("Error in getReceivedSMS(start, count); ", "");
}
to AsyncCallWS class and this constructor:
public List<ReceiveFields> getReceivedSMS(long start, long count) throws UnsupportedEncodingException {
tsms = new TSMS(context, new User(this.username, this.password));
try {
rows = tsms.getReceivedSMS(start, count);
saveRowsintoDatabase( rows );
} catch (TException e) {
e.printStackTrace();
Log.e(getClass().toString(), "ERROR IN Fetch SMS From WebService "+ String.valueOf(e));
}
return rows;
}
can be get rows from AsyncCallWS class. AsyncCallWS class.
UPDATE POST:
in this class doInBackground function do not allow to return String
public class WSDLHelper {
public static String call(SoapObject request){
ProcessTask p =new ProcessTask(request);
return p.execute();
}
}
class ProcessTask extends AsyncTask<Void, Void, SoapObject > {
SoapObject request;
public String ProcessTask(SoapObject rq){
request = rq;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected String doInBackground(Void... params) {
String result = null;
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
AndroidHttpTransport transport = new AndroidHttpTransport(Strings.URL_TSMS);
transport.debug = true;
try {
transport.call(Strings.URL_TSMS + request.getName(), envelope);
result = envelope.getResponse().toString();
} catch (IOException ex) {
Log.e("" , ex.getMessage());
} catch (XmlPullParserException ex) {
Log.e("" , ex.getMessage());
}
if (result.equals(String.valueOf(Integers.CODE_USER_PASS_FALSE)))
return result;
else
return null;
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
}
}
解决方案
You will have to create an AsyncTask first.
public class ProcessTask extends AsyncTask<Void, Integer, String>{
String s1, s2, s3, s4;
public ProcessTask(String str1, String str2, String str3, String str4) {
// TODO Auto-generated constructor stub
s1 = str1;
s2 = str2;
s3 = str3;
s4 = str4;
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
//do something with strings
super.onPreExecute();
}
@Override
protected String doInBackground(Void... params) {
// TODO Auto-generated method stub
//your code of parsing
return null;
}
@Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
}
}
Call it as:
ProcessTask p = new ProcessTask(s1, s2, s3, s4);
p.execute();
Hope this helps.
To return a List<ReceiveFields>, change:
public class ProcessTask extends AsyncTask<Void, Integer, String>
to
public class ProcessTask extends AsyncTask<Void, Integer, List<ReceiveFields>>
You would need to remove existing overriden method which returns String and override the proper method doInBackground, which returns List.
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