I created a library project which I built as an AAR file and later included in another project. It's in the libs folder, and the main gradle.build file includes it: implementation fileTree(include: ['*.jar','*.aar'], dir: 'libs')
When I try to use classes of this aar file, all of them are available except one class. I initially imagined it could be Proguard, but I even removed Proguard and it is still not available. It's a public class, and it's even there when I decompile the AAR file.
This is the content:
package com.onboarding;
import android.content.Context;
import android.content.Intent;
import android.support.annotation.Keep;
/**
*
*/
#Keep
public class Builder {
/**
*
*/
public static String mainColor = null;
public static String baseUrl = null;
public static Class firstActivity = null;
public static Class onboardingSettingsActivity = null;
/**
*
*/
public static String tosUrl = null;
public static String privacyUrl = null;
public static String cookieUrl = null;
public static String contactsLearnMoreUrl = null;
/**
*
*/
private static Builder builder = null;
/**
*
*/
private Builder() {}
/**
*
*/
public static Builder init() {
if (builder == null) {
builder = new Builder();
}
return builder;
}
/**
*
*/
public void start(final Context context) {
final Intent intent = new Intent(context, Onboarding1.class);
context.startActivity(intent);
}
/**
*
*/
public Builder setMainColor(final String color) {
mainColor = color;
return this;
}
/**
*
*/
public Builder setBaseUrl(final String url) {
baseUrl = url;
return this;
}
/**
*
*/
public Builder setFirstActivity(final Class c) {
firstActivity = c;
return this;
}
/**
*
*/
public Builder setOnboardingSettingsActivity(final Class c) {
onboardingSettingsActivity = c;
return this;
}
/**
*
*/
public Builder setTosUrl(final String u) {
tosUrl = u;
return this;
}
/**
*
*/
public Builder setPrivacyUrl(final String u) {
privacyUrl = u;
return this;
}
/**
*
*/
public Builder setCookieUrl(final String u) {
cookieUrl = u;
return this;
}
/**
*
*/
public Builder setContactsLearnMoreUrl(final String u) {
contactsLearnMoreUrl = u;
return this;
}
}
Any idea why I can't access this class from the main project?
Thanks!
After randomly working then not working, it appears that a File -> Invalidate caches / restart in Android Studio did the trick.
So apparently Android Studio caches some part of the aar, which even a Clean nor Rebuild would fix.
Hi did you check your dependencies? if it was added in there? what i meant is this one Also refer to this documentation for the difference between implementation and api.
Related
package com.hope.carwallpapers.extra;
import java.lang.reflect.Field;
/**
* Created by croma on 21-08-2016.
*/
public class StringLensFlare {
public final static String O_1 = "{\"I\":\"p(1)\",\"ow\":768,\"oh\":491,\"data\":[{\"image\":\"two\",\"fw\":389,\"fh\":235,\"fx\":162,\"fy\":187},{\"image\":\"one\",\"fw\":389,\"fh\":235,\"fx\":461,\"fy\":187}]}";
public final static String O_2 = "{\"I\":\"p(2)\",\"ow\":768,\"oh\":512,\"data\":[{\"image\":\"two\",\"fw\":757,\"fh\":450,\"fx\":11,\"fy\":0},{\"image\":\"two\",\"fw\":381,\"fh\":227,\"fx\":0,\"fy\":99}]}";
public static String getDeclare(int i) {
try {
StringLensFlare stringLensFlare = new StringLensFlare();
Field f = stringLensFlare.getClass().getDeclaredField("O_" + i);
f.setAccessible(true);
return f.get(stringLensFlare).toString();
} catch (Exception e) {
}
return "";
}
};;
this is my public static filed remove after proguard i have already added in
proguard.txt file as-keepclasseswithmembernames class * {
native <methods>;
}
You are accessing a public static field via reflection, thus you have to instruct ProGuard to keep it:
-keep class StringLensFlare {
static java.lang.String O_*;
}
The other rule that you mention is pretty much useless for this case and completely unrelated.
I am generating protobuf class using Squareup Wire protobuf libary
here is my proto file
syntax = "proto2";
package squareup.dinosaurs;
option java_package = "com.squareup.dinosaurs";
message Dinosaur {
// Common name of this dinosaur, like "Stegosaurus".
optional string name = 1;
// URLs with images of this dinosaur.
repeated string picture_urls = 2;
}
and here is my auto generated code
// Code generated by Wire protocol buffer compiler, do not edit.
// Source file: dinosaur/dinosaur.proto at 8:1
package com.squareup.dinosaurs;
import com.squareup.wire.FieldEncoding;
import com.squareup.wire.Message;
import com.squareup.wire.ProtoAdapter;
import com.squareup.wire.ProtoReader;
import com.squareup.wire.ProtoWriter;
import java.io.IOException;
import java.lang.Object;
import java.lang.Override;
import java.lang.String;
import java.lang.StringBuilder;
import java.util.List;
import okio.ByteString;
public final class Dinosaur extends Message<Dinosaur, Dinosaur.Builder> {
public static final ProtoAdapter<Dinosaur> ADAPTER = new ProtoAdapter<Dinosaur>(FieldEncoding.LENGTH_DELIMITED, Dinosaur.class) {
#Override
public int encodedSize(Dinosaur value) {
return (value.name != null ? ProtoAdapter.STRING.encodedSizeWithTag(1, value.name) : 0)
+ ProtoAdapter.STRING.asRepeated().encodedSizeWithTag(2, value.picture_urls)
+ value.unknownFields().size();
}
#Override
public void encode(ProtoWriter writer, Dinosaur value) throws IOException {
if (value.name != null) ProtoAdapter.STRING.encodeWithTag(writer, 1, value.name);
if (value.picture_urls != null) ProtoAdapter.STRING.asRepeated().encodeWithTag(writer, 2, value.picture_urls);
writer.writeBytes(value.unknownFields());
}
#Override
public Dinosaur decode(ProtoReader reader) throws IOException {
Builder builder = new Builder();
long token = reader.beginMessage();
for (int tag; (tag = reader.nextTag()) != -1;) {
switch (tag) {
case 1: builder.name(ProtoAdapter.STRING.decode(reader)); break;
case 2: builder.picture_urls.add(ProtoAdapter.STRING.decode(reader)); break;
default: {
FieldEncoding fieldEncoding = reader.peekFieldEncoding();
Object value = fieldEncoding.rawProtoAdapter().decode(reader);
builder.addUnknownField(tag, fieldEncoding, value);
}
}
}
reader.endMessage(token);
return builder.build();
}
#Override
public Dinosaur redact(Dinosaur value) {
Builder builder = value.newBuilder();
builder.clearUnknownFields();
return builder.build();
}
};
private static final long serialVersionUID = 0L;
public static final String DEFAULT_NAME = "";
/**
* Common name of this dinosaur, like "Stegosaurus".
*/
public final String name;
/**
* URLs with images of this dinosaur.
*/
public final List<String> picture_urls;
public Dinosaur(String name, List<String> picture_urls) {
this(name, picture_urls, ByteString.EMPTY);
}
public Dinosaur(String name, List<String> picture_urls, ByteString unknownFields) {
super(unknownFields);
this.name = name;
this.picture_urls = immutableCopyOf("picture_urls", picture_urls);
}
#Override
public Builder newBuilder() {
Builder builder = new Builder();
builder.name = name;
builder.picture_urls = copyOf("picture_urls", picture_urls);
builder.addUnknownFields(unknownFields());
return builder;
}
#Override
public boolean equals(Object other) {
if (other == this) return true;
if (!(other instanceof Dinosaur)) return false;
Dinosaur o = (Dinosaur) other;
return equals(unknownFields(), o.unknownFields())
&& equals(name, o.name)
&& equals(picture_urls, o.picture_urls);
}
#Override
public int hashCode() {
int result = super.hashCode;
if (result == 0) {
result = unknownFields().hashCode();
result = result * 37 + (name != null ? name.hashCode() : 0);
result = result * 37 + (picture_urls != null ? picture_urls.hashCode() : 1);
super.hashCode = result;
}
return result;
}
#Override
public String toString() {
StringBuilder builder = new StringBuilder();
if (name != null) builder.append(", name=").append(name);
if (picture_urls != null) builder.append(", picture_urls=").append(picture_urls);
return builder.replace(0, 2, "Dinosaur{").append('}').toString();
}
public static final class Builder extends com.squareup.wire.Message.Builder<Dinosaur, Builder> {
public String name;
public List<String> picture_urls;
public Builder() {
picture_urls = newMutableList();
}
/**
* Common name of this dinosaur, like "Stegosaurus".
*/
public Builder name(String name) {
this.name = name;
return this;
}
/**
* URLs with images of this dinosaur.
*/
public Builder picture_urls(List<String> picture_urls) {
checkElementsNotNull(picture_urls);
this.picture_urls = picture_urls;
return this;
}
#Override
public Dinosaur build() {
return new Dinosaur(name, picture_urls, buildUnknownFields());
}
}
}
now the issue is i want to directly store the value of Dinosaur into the database using Realm in android. i want Dinosaur class to act as a model.
but the problem is Dinosaur class is declared as final so i cant even derive it.
So is there any design pattern or way that exists to reuse or convert Dinosaur class into model?
You cannot use the Wire Dinosaur with Realm as Wire also require you to extend the Message class, while Realm require you to extend RealmObject.
If you want to combine the two you can create a RealmDinosaur class that accept the wire Dinosaur. Something like this:
public class RealmDinosaur extends RealmObject {
private String name;
private RealmList<RealmString> pictureUrls;
public RealmDinosaur(Dinosaur dino) {
// Fill Realm fields. Note that Realm doesn't support Lists
// with primitive strings yet.
// See https://realm.io/docs/java/latest/#primitive-lists
}
// getter and setters
}
realm.beginTransaction();
realm.copyToRealm(new RealmDinosaur(wireDinosaur));
realm.commitTransaction();
Short answer: no.
For me, this is one of several show-stoppers for wide adoption of Realm.
The developers of Realm don't seem to have considered real-world use-cases such as yours, where your data objects already inherit from something.
They also seem don't seem to get Android's threading requirements.
If you really want to use Realm, I think that you'll have to create another set of objects, likely in another package, that you only use with Realm. Then, you'd have to copy your data from your 'real' objects into the Realm objects.
Personally, for anything non-trivial, I'd either use the built-in SQLite, or find another database that better meets your needs.
I have a project: myApp
these files...
- myFragment.java.
- myDialogFragment.java.
- myAsyncTask.java
I have a project: myLibrary
This project "is Library" of "myApp"
I have...
- myMethodsToUpload.java
One of these methods, have a While bucle for write the file on php server.
Everything works like magic! :)
and the reason for the file structure is to make the library reusable.
but...
How can I send the increments of a value inside of this While bucle, to myAsyncTask.java?
Considering that...
what I want to do... is to make "myMethodsToUpload.java", reusable.
Some code...
myFragment.java
myDialogFragment df = new myDialogFragment();
df.setMyThings(new myAsynctask(), myParameters);
df.setTargetFragment(this, 0);
df.show(getFragmentManager(), DIALOG_FRAGMENT_TAG);
.
myDialogFragment.java
public class myDialogFragment extends DialogFragment {
myAsyncTask async;
public void setMyThings(myAsynctask inAsynctask, String[] inArray){
async = inAsynctask;
async.sendFragment(this);
parameters = inArray;
}
//...
//Only called from "myAsyncTask.java"
public void updateFromAsyncTask(Integer porcent){
progressbar.setProgress(porcent);
}
//...
}
.
myAsyncTask.java
public class myAsynctask extends AsyncTask<String, Integer, String> {
void sendFragment(myDialogFrament inFragment){
myDialogFrament = inFragment;
}
//...
#Override
protected String doInBackground(String... inArray) {
String urlPHP = inArray[0];
String pathImg = inArray[1];
String paramValue = inArray[2];
String msj = "";
try {
methodsToUpload up = new methodsToUpload(urlPHP);
up.connectNow();
up.insertFile(pathImg);
up.insertParams("pName", paramValue);
up.insertFinish();
msj = up.coonectClose();
} catch (Exception e) {
e.printStackTrace();
}
return msj;
}
//Called from "myMethods.java"
public void updateFromAsyncTask(int porcent){
publishProgress(porcent);
}
#Override
protected void onProgressUpdate(Integer... inPorcent) {
if(myDialogFragment == null){
return;
}
myDialogFragment.updateFromAsyncTask(inPorcent[0]);
}
}
.
myMethodsToUpload.java
public class myMethodsToUpload {
//...
public myMethodsToUpload(String url_in){
this.url = url_in;
}
public void insertFile(String path) throws Exception {
//...
//...
while (bytesRead > 0) {
salidaStream.write(buffer, 0, bufferSize);
sendedPorcent += bytesRead;
completedPorcent = (int) (sendedPorcent * 100 / fileSize);
//This line doesn't work...
//because myAsyncTask.java, is in another project.
myAsyncTask.updateFromAsyncTask(completedPorcent);
bytesAvailable = archivoStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = archivoStream.read(buffer, 0, bufferSize);
}
//...
//...
}
}
.
I've already tried...
"MyLibrary" -> propeties -> java build path -> projects -> add -> Project(myApp)
but...
throws me errors:
W/System.err(32469): at java.util.concurrent.FutureTask.run(FutureTask.java:237)...
ThreadPoolExecutor.runworker...
etc.
And, in the status bar of eclipse appears every moment "Building Workspace (X%)"
I'm a newbie, but I think the error happens because "MyLibrary" is Library of "MyApp", and I'm trying use "java build path".
So... how can I resolve this?, I'm lost!!!
sorry by my english... thanks in advance! :)
Here is a simple exemple :
Your AsyncTask class :
private CallBack mCallback;
public static interface CallBack {
public void updateValue(int value);
}
public void setCallBack(CallBack callBack){
this.mCallBack = callBack;
}
#Override
protected void onProgressUpdate(Integer... inPorcent) {
mCallback.updateValue(inPorcent[0].intValue());
}
Your fragment class :
public class Fragment extends Fragment implements Callback {
private AsyncTask yourAsyncTask;
...
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
yourAsyncTask = new AsyncTask();
yourAsyncTask.setCallBack(this);
yourAsyncTask.excecute();
}
#Override
public void updateValue(int value){
Log.e(TAG,"Value : " + value);
}
}
EDIT 1 :
public class AdsHttpRequest {
private static final String TAG = AdsHttpRequest.class.getSimpleName(); // log
private GetHttpTask mGetAsyncTask;
private static AdsHttpRequest mInstance;
private OnGetRequestListener mCallBack;
private static final String SUCCESS = "success";
private static final String SUCCES = "succes";
private static final String FAILED = "fail";
/**
* #return a singleton instance of {#link AdsHttpRequest}
*/
public static AdsHttpRequest getInstance() {
if (mInstance == null) {
synchronized (AdsHttpRequest.class) {
if (mInstance == null) {
mInstance = new AdsHttpRequest();
}
}
}
return mInstance;
}
/**
* Initialize the {#link AsyncTask}, set the callback, execute the task
*
* #param url
* url for the request
* #param callback
* {#link OnGetRequestListener} for feed back
*/
public void post(String url, OnGetRequestListener callback) {
mCallBack = callback;
if (mGetAsyncTask == null) {
mGetAsyncTask = new GetHttpTask();
} else {
cancelGetTask();
mGetAsyncTask = new GetHttpTask();
}
mGetAsyncTask.execute(url);
}
/**
* cancel the {#link AsyncTask} if it's still alive <br>
* <b>see </b> {#link Status}
*/
public void cancelGetTask() {
if (mGetAsyncTask != null && mGetAsyncTask.getStatus().equals(Status.RUNNING)) {
mGetAsyncTask.cancel(true);
}
mGetAsyncTask = null;
}
private AdsHttpRequest() {
super();
}
/**
* Actually construct and launch the HTTP request
*
* #param url
* url of the request
* #return response of the server
*/
private String getResponseFromUrl(String url) {
String xml = null;
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
} catch (Exception e) {
Log.e(TAG, "", e);
}
return xml;
}
/**
* Manage the http request in background
*
* #param String
* url for the request
*/
private class GetHttpTask extends AsyncTask<String, String, String> {
#Override
protected String doInBackground(String... params) {
if (params[0] != null) {
return getResponseFromUrl(params[0]); // return the response of the server
}
return null;
}
#Override
protected void onPostExecute(String result) {
if (result != null) {
if (result.contains(SUCCES) || result.contains(SUCCESS)) {
mCallBack.onGetRequestResult(SUCCESS);
} else {
mCallBack.onGetRequestResult(FAILED);
}
}
}
}
}
The way that I'm doing this consume more memory, time, threads? (I'm guessing)
I used the following POJO to create an App Engine Endpoint.
package com.incident.incidentreporter;
import java.util.Date;
import javax.jdo.annotations.IdGeneratorStrategy;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;
import javax.persistence.Entity;
import javax.persistence.Id;
import com.google.appengine.api.datastore.Blob;
#Entity
public class Incidents {
#Id
#PrimaryKey
#Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
private Long id;
#Persistent
private Date incidentdate;
#Persistent
private String incidentdetails;
#Persistent
private double lat;
#Persistent
private double lngtitude;
#Persistent
private String reporter;
#Persistent
private Blob incidentimage;
public Incidents() {
// TODO Auto-generated constructor stub
}
public Incidents(Long id, Date incidentdate, String incidentdetails,
double lat, double lngtitude, String reporter, Blob incidentimage) {
super();
this.id = id;
this.incidentdate = incidentdate;
this.incidentdetails = incidentdetails;
this.lat = lat;
this.lngtitude = lngtitude;
this.reporter = reporter;
this.incidentimage = incidentimage;
}
/**
* #return the incidentdate
*/
public Date getIncidentdate() {
return incidentdate;
}
/**
* #param incidentdate the incidentdate to set
*/
public void setIncidentdate(Date incidentdate) {
this.incidentdate = incidentdate;
}
/**
* #return the incidentdetails
*/
public String getIncidentdetails() {
return incidentdetails;
}
/**
* #param incidentdetails the incidentdetails to set
*/
public void setIncidentdetails(String incidentdetails) {
this.incidentdetails = incidentdetails;
}
/**
* #return the lat
*/
public double getLat() {
return lat;
}
/**
* #param lat the lat to set
*/
public void setLat(double lat) {
this.lat = lat;
}
/**
* #return the lngtitude
*/
public double getLngtitude() {
return lngtitude;
}
/**
* #param lngtitude the lngtitude to set
*/
public void setLngtitude(double lngtitude) {
this.lngtitude = lngtitude;
}
/**
* #return the reporter
*/
public String getReporter() {
return reporter;
}
/**
* #param reporter the reporter to set
*/
public void setReporter(String reporter) {
this.reporter = reporter;
}
/**
* #return the incidentimage
*/
public Blob getIncidentimage() {
return incidentimage;
}
/**
* #param incidentimage the incidentimage to set
*/
public void setIncidentimage(Blob incidentimage) {
this.incidentimage = incidentimage;
}
/**
* #return the id
*/
public Long getId() {
return id;
}
}
The auto generated endpoint code is as below.
package com.incident.incidentreporter;
import com.incident.incidentreporter.EMF;
import com.google.api.server.spi.config.Api;
import com.google.api.server.spi.config.ApiMethod;
import com.google.api.server.spi.config.ApiNamespace;
import com.google.api.server.spi.response.CollectionResponse;
import com.google.appengine.api.datastore.Cursor;
import com.google.appengine.datanucleus.query.JPACursorHelper;
import java.util.List;
import javax.annotation.Nullable;
import javax.inject.Named;
import javax.persistence.EntityExistsException;
import javax.persistence.EntityNotFoundException;
import javax.persistence.EntityManager;
import javax.persistence.Query;
#Api(name = "incidentsendpoint", namespace = #ApiNamespace(ownerDomain = "incident.com", ownerName = "incident.com", packagePath = "incidentreporter"))
public class IncidentsEndpoint {
/**
* This method lists all the entities inserted in datastore.
* It uses HTTP GET method and paging support.
*
* #return A CollectionResponse class containing the list of all entities
* persisted and a cursor to the next page.
*/
#SuppressWarnings({ "unchecked", "unused" })
#ApiMethod(name = "listIncidents")
public CollectionResponse<Incidents> listIncidents(
#Nullable #Named("cursor") String cursorString,
#Nullable #Named("limit") Integer limit) {
EntityManager mgr = null;
Cursor cursor = null;
List<Incidents> execute = null;
try {
mgr = getEntityManager();
Query query = mgr.createQuery("select from Incidents as Incidents");
if (cursorString != null && cursorString != "") {
cursor = Cursor.fromWebSafeString(cursorString);
query.setHint(JPACursorHelper.CURSOR_HINT, cursor);
}
if (limit != null) {
query.setFirstResult(0);
query.setMaxResults(limit);
}
execute = (List<Incidents>) query.getResultList();
cursor = JPACursorHelper.getCursor(execute);
if (cursor != null)
cursorString = cursor.toWebSafeString();
// Tight loop for fetching all entities from datastore and accomodate
// for lazy fetch.
for (Incidents obj : execute)
;
} finally {
mgr.close();
}
return CollectionResponse.<Incidents> builder().setItems(execute)
.setNextPageToken(cursorString).build();
}
/**
* This method gets the entity having primary key id. It uses HTTP GET method.
*
* #param id the primary key of the java bean.
* #return The entity with primary key id.
*/
#ApiMethod(name = "getIncidents")
public Incidents getIncidents(#Named("id") Long id) {
EntityManager mgr = getEntityManager();
Incidents incidents = null;
try {
incidents = mgr.find(Incidents.class, id);
} finally {
mgr.close();
}
return incidents;
}
/**
* This inserts a new entity into App Engine datastore. If the entity already
* exists in the datastore, an exception is thrown.
* It uses HTTP POST method.
*
* #param incidents the entity to be inserted.
* #return The inserted entity.
*/
#ApiMethod(name = "insertIncidents")
public Incidents insertIncidents(Incidents incidents) {
EntityManager mgr = getEntityManager();
try {
mgr.persist(incidents);
} finally {
mgr.close();
}
return incidents;
}
/**
* This method is used for updating an existing entity. If the entity does not
* exist in the datastore, an exception is thrown.
* It uses HTTP PUT method.
*
* #param incidents the entity to be updated.
* #return The updated entity.
*/
#ApiMethod(name = "updateIncidents")
public Incidents updateIncidents(Incidents incidents) {
EntityManager mgr = getEntityManager();
try {
if (!containsIncidents(incidents)) {
throw new EntityNotFoundException("Object does not exist");
}
mgr.persist(incidents);
} finally {
mgr.close();
}
return incidents;
}
/**
* This method removes the entity with primary key id.
* It uses HTTP DELETE method.
*
* #param id the primary key of the entity to be deleted.
*/
#ApiMethod(name = "removeIncidents")
public void removeIncidents(#Named("id") Long id) {
EntityManager mgr = getEntityManager();
try {
Incidents incidents = mgr.find(Incidents.class, id);
mgr.remove(incidents);
} finally {
mgr.close();
}
}
private boolean containsIncidents(Incidents incidents) {
EntityManager mgr = getEntityManager();
boolean contains = true;
try {
Incidents item = mgr.find(Incidents.class, incidents.getId());
if (item == null) {
contains = false;
}
} finally {
mgr.close();
}
return contains;
}
private static EntityManager getEntityManager() {
return EMF.get().createEntityManager();
}
}
I successfully generated client endpoint libraries and deployed the app to Google App engine.
I thought the key field will be autogenerated.
The problem i am facing now is that the code that inserts the incident fails if i do not set the id field.
Are there errors in my code which caused this problem?
since this field is of Long datatype and must be unique, is there away of adding code to generate it?
I am using an android client app .
Please advise .
Ronald
This part
Query query = mgr.createQuery("select from Incidents as Incidents");
looks very suspicious for me. It is missing the column list from the select clause and I believe you should review the work-flow of all the logistics working with your columns. This might be enough to fix your problem, however, I believe this is where you should start researching your problem.
I am currently in the process of creating a high performance mobile application. Now i am looking at various design patterns for consuming rest services. One such pattern that stands out is the Google IO discussion here. How i have am looking at the code to develop this design. I will be using Spring Rest for doing the actual HTTP Rest and serialization to POJO with the Serialization Library. I came across this implementation here, and will be using it as a blue print for my application. Now a major question is here.
public interface HttpMethods {
public Object getForObject(Object ... params);
public Object putForObject(Object ... params);
}
public class LocationsHttpMethods implements HttpMethods{
private final Context mContext;
public LocationsHttpMethods(Context context)
{
mContext=context;
}
#Override
public Location[] getForObject(Object... params) {
return null;
}
#Override
public Object putForObject(Object... params) {
return null;
}
}
My Location is just a pojo class. Now the question that troubles me is that the second link that i have given just uses Boolean to return data. I will be returning an array of something.
package com.confiz.rest.services;
import java.util.ArrayList;
import java.util.HashMap;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import com.confiz.rest.providers.IProvider;
import com.confiz.rest.providers.LocationsProvider;
public class ProcessorService extends Service
{
private Integer lastStartId;
private final Context mContext = this;
/**
* The keys to be used for the required actions to start this service.
*/
public static class Extras
{
/**
* The provider which the called method is on.
*/
public static final String PROVIDER_EXTRA = "PROVIDER_EXTRA";
/**
* The method to call.
*/
public static final String METHOD_EXTRA = "METHOD_EXTRA";
/**
* The action to used for the result intent.
*/
public static final String RESULT_ACTION_EXTRA = "RESULT_ACTION_EXTRA";
/**
* The extra used in the result intent to return the result.
*/
public static final String RESULT_EXTRA = "RESULT_EXTRA";
}
private final HashMap<String, AsyncServiceTask> mTasks = new HashMap<String, AsyncServiceTask>();
/**
* Identifier for each supported provider.
* Cannot use 0 as Bundle.getInt(key) returns 0 when the key does not exist.
*/
public static class Providers
{
public static final int LOATIONS_PROVIDER = 1;
}
private IProvider GetProvider(int providerId)
{
switch(providerId)
{
case Providers.LOATIONS_PROVIDER:
return new LocationsProvider(this);
}
return null;
}
/**
* Builds a string identifier for this method call.
* The identifier will contain data about:
* What processor was the method called on
* What method was called
* What parameters were passed
* This should be enough data to identify a task to detect if a similar task is already running.
*/
private String getTaskIdentifier(Bundle extras)
{
String[] keys = extras.keySet().toArray(new String[0]);
java.util.Arrays.sort(keys);
StringBuilder identifier = new StringBuilder();
for (int keyIndex = 0; keyIndex < keys.length; keyIndex++)
{
String key = keys[keyIndex];
// The result action may be different for each call.
if (key.equals(Extras.RESULT_ACTION_EXTRA))
{
continue;
}
identifier.append("{");
identifier.append(key);
identifier.append(":");
identifier.append(extras.get(key).toString());
identifier.append("}");
}
return identifier.toString();
}
#Override
public int onStartCommand(Intent intent, int flags, int startId)
{
// This must be synchronised so that service is not stopped while a new task is being added.
synchronized (mTasks)
{
// stopSelf will be called later and if a new task is being added we do not want to stop the service.
lastStartId = startId;
Bundle extras = intent.getExtras();
String taskIdentifier = getTaskIdentifier(extras);
Log.i("ProcessorService", "starting " + taskIdentifier);
// If a similar task is already running then lets use that task.
AsyncServiceTask task = mTasks.get(taskIdentifier);
if (task == null)
{
task = new AsyncServiceTask(taskIdentifier, extras);
mTasks.put(taskIdentifier, task);
// AsyncTasks are by default only run in serial (depending on the android version)
// see android documentation for AsyncTask.execute()
task.execute((Void[]) null);
}
// Add this Result Action to the task so that the calling activity can be notified when the task is complete.
String resultAction = extras.getString(Extras.RESULT_ACTION_EXTRA);
if (resultAction != "")
{
task.addResultAction(extras.getString(Extras.RESULT_ACTION_EXTRA));
}
}
return START_STICKY;
}
#Override
public IBinder onBind(Intent intent)
{
return null;
}
public class AsyncServiceTask extends AsyncTask<Void, Void, Object>
{
private final Bundle mExtras;
private final ArrayList<String> mResultActions = new ArrayList<String>();
private final String mTaskIdentifier;
/**
* Constructor for AsyncServiceTask
*
* #param taskIdentifier A string which describes the method being called.
* #param extras The Extras from the Intent which was used to start this method call.
*/
public AsyncServiceTask(String taskIdentifier, Bundle extras)
{
mTaskIdentifier = taskIdentifier;
mExtras = extras;
}
public void addResultAction(String resultAction)
{
if (!mResultActions.contains(resultAction))
{
mResultActions.add(resultAction);
}
}
#Override
protected Object doInBackground(Void... params)
{
Log.i("ProcessorService", "working " + mTaskIdentifier);
Object result = false;
final int providerId = mExtras.getInt(Extras.PROVIDER_EXTRA);
final int methodId = mExtras.getInt(Extras.METHOD_EXTRA);
if (providerId != 0 && methodId != 0)
{
final IProvider provider = GetProvider(providerId);
if (provider != null)
{
try
{
result = provider.RunTask(methodId, mExtras);
} catch (Exception e)
{
result = false;
}
}
}
return result;
}
#Override
protected void onPostExecute(Object result)
{
// This must be synchronised so that service is not stopped while a new task is being added.
synchronized (mTasks)
{
Log.i("ProcessorService", "finishing " + mTaskIdentifier);
// Notify the caller(s) that the method has finished executing
for (int i = 0; i < mResultActions.size(); i++)
{
Intent resultIntent = new Intent(mResultActions.get(i));
//What to do here
resultIntent.put(Extras.RESULT_EXTRA, true);
//What to do here ends.
resultIntent.putExtras(mExtras);
resultIntent.setPackage(mContext.getPackageName());
mContext.sendBroadcast(resultIntent);
}
// The task is complete so remove it from the running tasks list
mTasks.remove(mTaskIdentifier);
// If there are no other executing methods then stop the service
if (mTasks.size() < 1)
{
stopSelf(lastStartId);
}
}
}
}
}
Now if you browse to the code that contain the AsyncService, and puts the resultIntent.put(Extras.RESULT_EXTRA, true);
Now how should i pass the data back to the intent. I heard Serializable is bad, and Parceable is ugly code. What else can i use. Secondly, where do i add the SQL cache retrieve code. How can i add this code to the framework. Hope i make sense.