我的应用程序有一个function ShellExecute(hwnd: HWND; lpOperation: string; lpFile: string;
lpParameters: string; lpDirectory: string; nShowCmd: Integer): THandle;
external 'ShellExecuteW@shell32.dll stdcall';
function InitializeSetup(): Boolean;
var
HasLog: Boolean;
Params: string;
I: Integer;
S: string;
RetVal: Integer;
begin
HasLog := False;
Params := '';
for I := 1 to ParamCount do
begin
S := ParamStr(I);
if CompareText(Copy(S, 1, 5), '/LOG=') = 0 then
begin
HasLog := True;
break;
end;
{ Do not pass our /SL5 switch }
if CompareText(Copy(S, 1, 5), '/SL5=') = 0 then
begin
Params := Params + AddQuotes(S) + ' ';
end;
end;
Result := True;
if HasLog then
begin
Log('Log specified, continuing.');
end
else
begin
{ add selected language, so that user is not prompted again }
Params := Params + ' /LANG=' + ActiveLanguage;
{ force logging }
Params := Params + ' /LOG="' + ExpandConstant('{%TEMP}\ProductInstall.log') + '"';
Log(Format('Log file not specified, restarting setup with [%s]', [Params]));
RetVal := ShellExecute(0, '', ExpandConstant('{srcexe}'), Params, '', SW_SHOW);
Log(Format('Restarting setup returned [%d]', [RetVal]));
if RetVal > 32 then
begin
Log('Restart with logging succeeded, aborting this instance');
Result := False;
end
else
begin
Log(Format('Restarting with logging failed [%s], keeping this instance', [
SysErrorMessage(RetVal)]));
end;
end;
end;
，它是使用BroadCastReceiver以编程方式注册的。代码registerReceiver(receiver, filter)放在registerReceiver(receiver, filter)类中，因此它具有全局访问权限。Application启动BroadCastReceiver，向服务器发送多个OkHttp POST请求。当多个POST请求成功时，我想取消注册Service的实例。怎么办呢？
MyService.java：
BroadCastReceiverMyReciever.java：
public class MyService extends Service {
@Override
public void onCreate() {
for(int i=0;i<size;i++){
/....Multiple POST Requests..../
}
Callback/Event(){ execute unregisterReceiver();}
}
@Override
public void onDestroy() {
}
}
答案 0 :(得分：0)
好的，我只是使用一个计数器变量来解决它。
public class MyService extends Service {
int counter;
@Override
public void onCreate() {
counter = size ;
for(int i=0;i<size;i++){
/....Multiple POST Requests..../
OnResponse:
counter--
if(counter ==0){
execute unregisterReceiver();
}
}
}
@Override
public void onDestroy() {
}
}