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我有一個異步任務類，它獲取Web方法的名稱並運行它，我必須等待該Web方法的結果，所以我使用task.execute .get（）方法凍結了我的UI。問題是我想在任務執行時顯示一個加載對話框，但是當我試圖爲10個Web方法調用此方法10次時，UI凍結並且在執行10個Web方法後，加載對話框出現1秒。
我可以做什麼來顯示加載而無需將所有代碼移入doInBackground？我想要一個獲取Web方法信息並返回結果的類。這是我的類代碼：顯示加載的UI凍結異步任務像這樣
public class AsyncCallWs extends AsyncTask<String, Void, String> {
private ProgressDialog dialog;
public String methodName="";
private WebService ws;
private ArrayList<ServiceParam> paramsList;
private boolean hasParams;
public AsyncCallWs(Activity activity,String methodName) {
xLog.position();
try {
this.dialog = new ProgressDialog(activity);
this.methodName = methodName;
hasParams = false;
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
public AsyncCallWs(Activity activity,String methodName,ArrayList<ServiceParam> params) {
xLog.position();
try {
this.dialog = new ProgressDialog(activity);
this.methodName = methodName;
this.paramsList = params;
hasParams = true;
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
@Override
protected void onPreExecute() {
this.dialog.setMessage(PersianReshape.reshape("Loading..."));
this.dialog.show();
}
@Override
protected String doInBackground(String... params) {
xLog.position();
String result = "No async task result!";
try {
ws = new WebService(PublicVariable.NAMESPACE, PublicVariable.URL);
if (!hasParams){
result = ws.CallMethod(methodName);
}
else{
xLog.info("THIS METHOD IS: "+ methodName);
result = ws.CallMethod(methodName,paramsList);
xLog.info("THIS RESULT IS: "+ result);
}
} catch (Exception e) {
xLog.error(e.getMessage());
}
return result;
}
@Override
protected void onPostExecute(String result) {
xLog.position();
if (this.dialog.isShowing()) {
this.dialog.dismiss();
}
xLog.info("Output of current AsyncTask is:"+ result);
}
}
這是我打電話使用這個類Web方法的方式：
public void doSync(String method){
xLog.position();
AsyncCallWs t;
ArrayList<ServiceParam> serviceParams = new ArrayList<ServiceParam>();
String result="";
Settings settings = new Settings(activity);
PublicVariable.pGuid = Login(settings.getValue("Username"), settings.getValue("Password"));
xLog.info("pGuid in doSync is:" + PublicVariable.pGuid);
serviceParams.add(new ServiceParam("pGuid", PublicVariable.pGuid, String.class));
if (method=="all" || method=="person"){
try {
t = new AsyncCallWs(activity,"GetPersonInfo",serviceParams);
result = t.execute().get();
xLog.info("Sync Person=>"+ result);
String fields[] = result.split(PublicVariable.FIELD_SPLITTER);
Person person = new Person(activity,fields);
person.empty();
person.insert();
settings.update("PersonId",String.valueOf(person.getId()));
PublicVariable.personId = person.getId();
xLog.info("Person inserted...");
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
}
if (method=="all" || method=="personImage"){
try {
t = new AsyncCallWs(activity,"GetPersonImage",serviceParams);
result = t.execute().get();
if (!result.equals("Nothing")){
settings.update("picture", result);
xLog.info("Picture updatted...");
}
else
xLog.error("NO PERSON IMAGE FOUND!");
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
if (method=="all" || method=="lawyers"){
try {
t = new AsyncCallWs(activity,"GetLawyers",serviceParams);
result = t.execute().get();
xLog.info("Sync Lawyer=>"+ result);
if (!result.equals("Nothing")){
String records[] = result.split(PublicVariable.RECORD_SPLITTER);
String fields[];
Lawyer lawyer= new Lawyer(activity);
lawyer.empty();
for(int i=0;i<records.length;i++){
fields = records[i].split(PublicVariable.FIELD_SPLITTER);
lawyer = new Lawyer(activity, fields);
lawyer.insert();
}
xLog.info("Lawyers inserted...");
}
else
xLog.error("NO LAWYER FOUND!");
}catch (Exception e) {
xLog.error(e.getMessage());
}
}
if (method=="all" || method=="news"){
try {
t = new AsyncCallWs(activity,"GetNews",serviceParams);
result = t.execute().get();
String fields[];
Log.d("Ehsan","Sync News=>"+ result);
if (!result.equals("Nothing")){
String records[] = result.split(PublicVariable.RECORD_SPLITTER);
News news = new News(activity);
news.empty();
for(int i=0;i<records.length;i++){
fields = records[i].split(PublicVariable.FIELD_SPLITTER);
news= new News(activity,fields);
news.insert();
}
xLog.info("News inserted...");
}
else
xLog.error("NO NEWS FOUND!");
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
if (method=="all" || method=="messages"){
try {
t = new AsyncCallWs(activity,"GetMessagesInbox ",serviceParams);
result = t.execute().get();
Log.d("Ehsan","Sync message Inbox=>"+ result);
if (!result.equals("Nothing")){
String records[] = result.split(PublicVariable.RECORD_SPLITTER);
String fields[];
Message message = new Message(activity);
message.empty();
for(int i=0;i<records.length;i++){
fields = records[i].split(PublicVariable.FIELD_SPLITTER);
message= new Message(activity,fields);
message.insert();
}
xLog.info("Inbox messages inserted...");
}
else
xLog.error("NO MESSAGES FOUND!");
} catch (Exception e) {
xLog.error(e.getMessage());
}
try {
t = new AsyncCallWs(activity,"GetMessagesOutbox ",serviceParams);
result = t.execute().get();
Log.d("Ehsan","Sync message Outbox=>"+ result);
if (!result.equals("Nothing")){
String records[] = result.split(PublicVariable.RECORD_SPLITTER);
String fields[];
Message message = new Message(activity);
message.empty();
for(int i=0;i<records.length;i++){
fields = records[i].split(PublicVariable.FIELD_SPLITTER);
message= new Message(activity,fields);
message.insert();
}
xLog.info("Outbox messages inserted...");
}
else
xLog.error("NO MESSAGES FOUND!");
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
if (method=="all" || method=="requests"){
try {
t = new AsyncCallWs(activity,"GetAllRequests",serviceParams);
result = t.execute().get();
Log.d("Ehsan","Sync share buy sell requests=>"+ result);
if (!result.equals("Nothing")){
String records[] = result.split(PublicVariable.RECORD_SPLITTER);
String fields[];
Share share = new Share(activity);
share.empty();
for(int i=0;i<records.length;i++){
fields = records[i].split(PublicVariable.FIELD_SPLITTER);
share= new Share(activity,fields);
share.insert();
}
xLog.info("Shares inserted...");
}
else
xLog.error("NO MESSAGES FOUND!");
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
if (method=="all" || method=="financials"){
try {
t = new AsyncCallWs(activity,"GetFinancials",serviceParams);
result = t.execute().get();
Log.d("Ehsan","Sync Financials=>"+ result);
if (!result.equals("Nothing")){
String records[] = result.split(PublicVariable.RECORD_SPLITTER);
String fields[];
Financial financial = new Financial(activity);
financial.empty();
for(int i=0;i<records.length;i++){
fields = records[i].split(PublicVariable.FIELD_SPLITTER);
financial= new Financial(activity,fields);
financial.insert();
}
xLog.info("Financials inserted...");
}
else{
Log.e("Ehsan", "NOT FINANCIALS FOUND!");
}
} catch (Exception e) {
xLog.error(e.getMessage());
}
}
}