I'm trying to create a global actions file in which i can call certain functions globally anywhere within the app. so far i have got it working with functions etc but now what i'm wanting to do is put a standard AsyncTask into my global actions and pass it functions/voids from my Activity so i'd want to pass it a function to run in background and a function to run once finished. does anyone know how do this? and also advise me on running multiple functions on a background thread do i create one AsyncTask and feed in multiple functions or do i create multiple AsyncTasks?
heres an example of what i have managed to do globally so far and how i'm currently implementing my Asynctask. Just to reiterate i'm trying to move the asynctask into a global actions and make it as reusuable as possible
in my Global Actions im creating a function that formulates a URL and sends post variables to that url which then feedsback a JSON response. then in my Activity i have created a function to both call that request and then Log the response
My Global Actions
public final static JSONObject startAPICallRequest(Context activityContext, String requestReference, String callLocation, Map<String, String> postVarsMap, Map<String, String> getVarsMap){
long unixTimeStamp = System.currentTimeMillis() / 1000L;
StringBuilder extraGetVarsString = new StringBuilder();
if(getVarsMap != null){
Map<String, String> map = (Map)getVarsMap;
for (Entry<String, String> entry : map.entrySet()) {
extraGetVarsString.append("&" + entry.getKey() + "=" + entry.getValue());
extraGetVarsString.toString();
}
}
String appVersion = null;
try {
appVersion = activityContext.getPackageManager().getPackageInfo(activityContext.getPackageName(), 0).versionName;
} catch (NameNotFoundException e) {
e.printStackTrace();
appVersion = activityContext.getResources().getString(R.string.appVersion);
}
String getVarsString = "?timestamp=" + unixTimeStamp + "&app_version=" + appVersion + extraGetVarsString;
String apiLocation = activityContext.getResources().getString(R.string.apiLocation);
String fullAPIURL = apiLocation + callLocation + getVarsString;
Log.v("globals", "fullAPIURL=" + fullAPIURL);
String api_key = activityContext.getResources().getString(R.string.apiKey);
String api_user = activityContext.getResources().getString(R.string.apiUser);
String request_token = returnSHAFromString(api_key, fullAPIURL);
String device_id = returnStringFromPreference(activityContext,"device_id");
String user_token = returnStringFromPreference(activityContext,"user_token");
List<NameValuePair> postVarsList = new ArrayList<NameValuePair>();
postVarsList.add(new BasicNameValuePair("request_token", request_token));
postVarsList.add(new BasicNameValuePair("api_user", api_user));
postVarsList.add(new BasicNameValuePair("device_id", device_id));
postVarsList.add(new BasicNameValuePair("user_token", user_token));
if(postVarsMap != null){
Map<String, String> map = (Map)postVarsMap;
for (Entry<String, String> entry : map.entrySet()) {
postVarsList.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
}
}
JSONObject responseJSON = null;
try {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(fullAPIURL);
post.setEntity (new UrlEncodedFormEntity(postVarsList));
HttpResponse response = client.execute(post);
BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent(), "UTF-8"));
String jsonResponse = reader.readLine();
Log.v("globals", "postList =" + postVarsList );
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return responseJSON;
}
MY Activity
public void apiCall(){
responseJSON = GlobalActions.startAPICallRequest(this, "login", "my-network/", null, null);
}
public class PostTask extends AsyncTask<Void, String, Boolean> {
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Boolean doInBackground(Void... params) {
apiCall();
boolean result = false;
publishProgress("progress");
return result;
}
protected void onProgressUpdate(String... progress) {
StringBuilder str = new StringBuilder();
for (int i = 1; i < progress.length; i++) {
str.append(progress[i] + " ");
}
}
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
checkLoginData();
}
}
public void checkLoginData(){
Log.v("IntroLoader", "responseJSON = " + responseJSON);
Intent register = new Intent(getApplicationContext(), LoginForm.class);
startActivity(register);
}
