First I will describe the process/problem briefly in words. Afterwards, I'll attach all of the code.
I start the android application in debug mode.
Main activity gets called.
It calls Activity2 via "intent".
Then (in onCreate) I start an Async activity in order to get information from a webserver. I do that with this command "new Kontakt(info1, info2, information).execute();"
I've put a break point at the onPostExecute method in "Kontakt" to see what happens. But!! It doesn't stop there. So then I figured, "okey, the doInBackground method didn't get called for some reason"
When I continue to run the code, as a surprise, onPostExecute gets called (somewhere at the end of onClick) and stops at the break point just the way I want it but than it's too late, because I'd like to have the output already in the onCreate method where I called "new Kontakt(info1, info2, information).execute();".
So why does it call onPostExecute too late and what can I do to make the process call it properly already in onCreate at the line "new Kontakt(info1, info2, information).execute();" in Activity2?
The code is below
MainActivity.java
package com.example.myapplication;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.preference.PreferenceManager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
public class MainActivity extends ActionBarActivity implements View.OnClickListener {
Button button1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(this);
}
#Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.button1:
Intent intent = new Intent(this, Activity2.class);
startActivity(intent);
break;
}
}
}
Activity2.java
package com.example.myapplication;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.preference.PreferenceManager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.text.InputType;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.ArrayList;
public class Activty2 extends ActionBarActivity implements View.OnClickListener {
Button button;
Context information;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity2);
information=this;
String info1="Yeah";
String info2="Yeah";
new Kontakt(info1, info2, information).execute();
button = (Button) findViewById(R.id.button);
button.setOnClickListener(this);
}
#Override
public void onClick(View view) {
if (view.getId() == R.id.button) {
}
}
Kontakt.java
package com.example.myapplication;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.util.Log;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.json.JSONObject;
import java.util.ArrayList;
public class Kontakt extends AsyncTask<Void, Void, Integer> {
public static final int CONNECTION_TIMEOUT = 1000 * 15;
public static final String SERVER_ADDRESS = "http://test.site.net/";
String info1;
String info2;
private final Context information;
public Kontakt(String info1, String info2, Context context) {
this.info1=info1;
this.Info2=info2;
this.information=context;
}
#Override
protected Integer doInBackground(Void... params) {
ArrayList<NameValuePair> dataToSend = new ArrayList<>();
dataToSend.add(new BasicNameValuePair("user", info1));
dataToSend.add(new BasicNameValuePair("password", info2));
HttpParams httpRequestParams = getHttpRequestParams();
HttpClient client = new DefaultHttpClient(httpRequestParams);
HttpPost post = new HttpPost(SERVER_ADDRESS
+ "Register.php");
try {
post.setEntity(new UrlEncodedFormEntity(dataToSend));
client.execute(post);
int result=1;
return result;
} catch (Exception e) {
e.printStackTrace();
int result=0;
return result;
}
//return null;
}
private HttpParams getHttpRequestParams() {
HttpParams httpRequestParams = new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpRequestParams,
CONNECTION_TIMEOUT);
HttpConnectionParams.setSoTimeout(httpRequestParams,
CONNECTION_TIMEOUT);
return httpRequestParams;
}
#Override
protected void onPostExecute(Integer result)
{
super.onPostExecute(result);
SharedPreferences.Editor editor = information.getSharedPreferences("INTERNET_KOLL", Context.MODE_PRIVATE).edit();
editor.putString("internet_status", String.valueOf(result));
editor.commit();
}
}
In Activity2, when onCreate() calls new Kontakt(info1, info2, information).execute();:
an asynchronous task (Kontakt) is started in the background
the execution of onCreate() continues
so it's normal that you don't have the response immediately.
Related
im trying to move the info of a user from one activity to the other, but everytime i run the app it crashes at the "startActivity(i)" Line (i checked everything else, it only crashes at that line).
that's the MainActivity Code
package com.example.hw1511;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.example.hw1511.Model.User;
import org.w3c.dom.Text;
import java.io.Serializable;
import java.util.LinkedList;
import java.util.List;
public class MainActivity extends AppCompatActivity implements Serializable {
private EditText Name;
private EditText Age;
private EditText Birth;
private Button AddUser;
private Button Send;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Name = findViewById(R.id.Name);
Age = findViewById(R.id.Age);
Birth = findViewById(R.id.Birth);
AddUser = findViewById(R.id.AddUser);
Send = findViewById(R.id.Send);
Intent i = new Intent(MainActivity.this, SecondActivity.class);
List<User> list1 = new LinkedList<>();
AddUser.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (Name.getText().toString().trim().length() > 0 && Age.getText().toString().trim().length() > 0 && Birth.getText().toString().trim().length() > 0) {
User u = new User(Name.getText().toString(), Integer.parseInt(Age.getText().toString()), Birth.getText().toString());
list1.add(u);
Name.setText("");
Age.setText("");
Birth.setText("");
}
else {
Toast.makeText(MainActivity.this, "Fill All", Toast.LENGTH_SHORT).show();
}
}
});
Send.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
i.putExtra("Users", (Serializable) list1);
startActivity(i);
}
});
}
}
and that's the SecondActivty Code (it's preety much empty)
package com.example.hw1511;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.example.hw1511.Model.User;
import java.io.Serializable;
import java.util.LinkedList;
import java.util.List;
import java.util.jar.Attributes;
public class SecondActivity extends AppCompatActivity{
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
}
}
please if anyone help me understand what is making my app crash everytime i press the send button! it would really help me a lot.
Your User objects need to implement Serializable as well.
Also, since LinkedLists are Serializable you can use putSerializable(String key, Serializable value) instead of putExtra
i have a issue with my code in android studio. the url of json object is not been open. when i change the url for testing whether there is any problem with my code or not, it is ok. and the only diffrence between those two urls is one of them is https (which run without any problem) and the other is http (which is not working). how can i run the code with out problem?
package com.example.chatbot;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void onClick(View view){
TextView textView = findViewById(R.id.textView);
String input = textView.getText().toString();
//textView.setText(" ");
TextView out=findViewById(R.id.outPut);
// Instantiate the RequestQueue.
RequestQueue queue = Volley.newRequestQueue(MainActivity.this);
String url ="http://api.brainshop.ai/get?bid=159114&key=OCfIpglFJbfXDt2G&uid=[uid]&msg=[msg]=hello";
JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
//set the text
String res = response.toString();
Toast.makeText(MainActivity.this,response.toString(),Toast.LENGTH_SHORT).show();
out.setText(res);
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
});
queue.add(request);
}
}
You should set "android:usesCleartextTraffic" flag to true in your AndroidManifest file.
Since target api 28 it defaults to false. more info here
How do I get the json result from onPostExecute to another activity? I was able to get the user details from the database based on the username logged in. So in my HomePageActivity there is a button to go to profile and when I clicked on btnprofile it displays the user details on textviews in the current activity(HomePageActivity) but what I wanted to do is to get the user details and then display it to a new activity, which is in the Profile Activity. I tried using Intent but when I go to Profile Activity it displays nothing. Can you please help me? :(
Here is my HomePageActivity:
package com.example.androidmp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import android.content.*;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.json.JSONArray;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.view.Menu;
import android.view.View;
import android.widget.*;
import com.example.androidmp.User;
import java.util.ArrayList;
import java.util.List;
import com.example.androidmp.User;
import com.example.androidmp.Poem;
import java.util.ArrayList;
import java.util.HashMap;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListView;
public class HomePageActivity extends Activity {
Button btnfeed, btnprofile;
User u = new User();
String Username,Password,Fullname,Email,Location,Bio,uname;
String getusername,getpw,getfn,getem,getloc,getb;
JSONObject jsonobject;
JSONArray jsonarray;
ListView listview;
ListViewAdapter adapter;
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist;
HashMap<String, String> hashMap = new HashMap<String, String>();
Intent i;
Bundle bundle;
private static final String USERNAME = "Username";
private static final String PASSWORD = "Password";
private static final String FULLNAME = "Fullname";
private static final String EMAIL = "Email";
private static final String BIO = "Bio";
private static final String LOCATION = "Location";
String s="";
TextView fn,em,loc,b;
private static final String TAG_PROFILE = "user";
private static final String PROFILE_URL = "http://192.168.1.5/webservices/mycontroller/getUser.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_homepage);
Intent intent = getIntent();
u.SetUsername(intent.getStringExtra(u.username()));
fn = (TextView) findViewById(R.id.textView1);
em = (TextView) findViewById(R.id.textView2);
loc = (TextView) findViewById(R.id.textView3);
b = (TextView) findViewById(R.id.textView4);
TextView textView = (TextView) findViewById(R.id.getusername);
textView.setText(u.getUsername());
uname = u.getUsername().toString();
//uname = textView.toString();
//u.SetUsername(uname.toString());
btnprofile = (Button) findViewById(R.id.btnprofile);
btnfeed = (Button) findViewById(R.id.btnfeed);
//getem = em.getText().toString();
//getloc = loc.getText().toString();
//getb = b.getText().toString();
btnprofile.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
new ProfileAsync().execute();
Intent i = new Intent(HomePageActivity.this,ProfileActivity.class);
i.putExtra("fullname",Fullname);
i.putExtra("email", Email);
i.putExtra("bio", Bio);
i.putExtra("location", Location);
startActivity(i);
finish();
}
});
btnfeed.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent a = new Intent(HomePageActivity.this,FeedActivity.class);
startActivity(a);
}
});
}
class ProfileAsync extends AsyncTask<String, String, String>{
private Dialog loadingDialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
loadingDialog = ProgressDialog.show(HomePageActivity.this, "Please wait", "Loading...");
}
#Override
protected String doInBackground(String... params) {
String json=null;
byte[] data;
StringBuffer buffer = null;
InputStream is = null;
try{
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("Username", uname));
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(PROFILE_URL);
httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
json = EntityUtils.toString(entity);
Log.e("Profile JSON: ", json.toString());
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return json;
}
#Override
protected void onPostExecute(String json){
super.onPostExecute(json);
loadingDialog.dismiss();
try
{
jsonobject = new JSONObject(json);
jsonarray = jsonobject.getJSONArray("user");
JSONObject jb= jsonarray.getJSONObject(0);
//Username = jb.getString("Username");
//Password = jb.getString("Password");
Fullname = jb.getString("Fullname");
Email = jb.getString("Email");
Bio = jb.getString("Bio");
Location = jb.getString("Location");
fn.setText(Fullname);
em.setText(Email);
loc.setText(Location);
b.setText(Bio);
}catch(Exception e)
{
e.printStackTrace();
}
}
}//end of asynctask
}
Here is my ProfileActivity:
package com.example.androidmp;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import android.content.*;
import com.example.androidmp.User;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.view.Menu;
import android.view.View;
import android.widget.*;
public class ProfileActivity extends Activity {
Button btncreate;
private TextView _username,_password,_fullname,_Email,_bio,_location;
User u = new User();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.profileview);
//_username = (TextView) findViewById(R.id._username);
//_password = (TextView) findViewById(R.id._password);
_fullname = (TextView) findViewById(R.id._fullname);
_Email = (TextView) findViewById(R.id._Email);
_bio = (TextView) findViewById(R.id._bio);
_location = (TextView) findViewById(R.id._location);
Intent i = getIntent();
u.SetUsername(i.getStringExtra(u.username()));
_username.setText(u.getUsername());
String displayfullname = i.getExtras().getString("fullname");
String displayemail = i.getExtras().getString("email");
String displaybio = i.getExtras().getString("bio");
String displaylocation = i.getExtras().getString("location");
_fullname.setText(displayfullname);
_Email.setText(displayemail);
_bio.setText(displaybio);
_location.setText(displaylocation);
}
}
It is because new activity starts before async task is completed. Just call function for start new activity in onPostExecute() function.
Pass values after fetching the details. Is the settext working properly? then you can give the intent at that scope, in the onPostexecute method. Look before doing this.Look this
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.VolleyLog;
import com.android.volley.toolbox.JsonObjectRequest;
import net.simonvt.menudrawer.MenuDrawer;
import net.simonvt.menudrawer.Position;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Method;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import adapter.MyRecyclerAdapter;
import app.AppController;
import data.FeedItem;
public class CategoryMain extends Activity {
private static final String URL_FEED = "http://lorempixel.com/800/400/nightlife/";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.category_main);
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.list);
recyclerView.setHasFixedSize(true);
final CatRecyclerAdapter adapter;
recyclerView.setAdapter(adapter = new CatRecyclerAdapter(createMockList(), R.layout.item));
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setItemAnimator(new DefaultItemAnimator());
adapter.setOnItemClickListener(new OnRecyclerViewItemClickListener<ViewModel>() {
#Override
public void onItemClick(View view, ViewModel viewModel) {
adapter.remove(viewModel);
}
});
}
//
private List<ViewModel> createMockList() {
List<ViewModel> items = new ArrayList<ViewModel>();
for (int i = 0; i < 20; i++) {
items.add(new ViewModel(i, "Item " + (i + 1), URL_FEED + (i % 10 + 1), i + ""));
}
return items;
}
}
I don't know how to import JSON Data to Arraylist. How can I import JSON Array in createMockList() ? Someone help me! I'm beginner. Sorry for my poor english. Thanks You!
I want to know how to replace with JSON Array?
The Android does not talk despite my code being error free and accurate. I have used a toast function to see where the issue occurs. However, both toasts are called.
I have removed all irrelevant code.
The code below is mostly relevant.
package com.example.android.BluetoothChat;
import android.R.string;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.CountDownTimer;
import android.os.Handler;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.telephony.SmsManager;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import java.util.Locale;
import java.util.Set;
import android.bluetooth.BluetoothDevice;
import java.io.InputStream;
import java.io.OutputStream;
import android.bluetooth.BluetoothSocket;
import android.widget.EditText;
import java.io.IOException;
import java.util.UUID;
public class MainActivity extends Activity implements LocationListener{
Button start, stop;
TextView tv;
TextView tv2;
TextView sum;
LocationManager lm;
static TextToSpeech Talker;
TextView myLabel;
Handler mhandler = new Handler();
int i;
int sum1 = 0;
static BluetoothDevice mmDevice;
static BluetoothAdapter mBluetoothAdapter;
static BluetoothSocket mmSocket;
String lat;
String lon;
EditText myTextbox;
static OutputStream mmOutputStream;
static InputStream mmInputStream;
static Thread workerThread;
static byte[] readBuffer;
static int readBufferPosition;
static int counter;
static volatile boolean stopWorker;
TextToSpeech talker;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);
setTitle("Seizure Detection Helmet Application");
myTextbox = (EditText)this.findViewById(R.id.name);
talker = new TextToSpeech(getApplicationContext(),new TextToSpeech.OnInitListener() {
#Override
public void onInit(int status) {
if(status != TextToSpeech.ERROR)
{
talker.setLanguage(Locale.US);
}
}
});
Button talk = (Button)this.findViewById(R.id.talk);
talk.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v)
{
speakOut();
}
});
public void speakOut()
{
String toSpeak = myTextbox.getText().toString();
Toast.makeText(getApplicationContext(), toSpeak, Toast.LENGTH_SHORT).show();
String full = ("My name is"+toSpeak+ "and I am having a Seizure at 38.901 Latitude and -77.031 Longitude ");
Toast.makeText(getApplicationContext(), toSpeak, Toast.LENGTH_SHORT).show();
talker.speak(full, TextToSpeech.QUEUE_FLUSH, null);
Toast.makeText(getApplicationContext(), full, Toast.LENGTH_SHORT).show();
talker.speak("HELLO",TextToSpeech.QUEUE_FLUSH, null);
}
}
There are several problems with your code. You should check for error returned by setLanguage. You cannot call speakOut until onInit has been called. One way you can insure this is to disable the talk button in the xml layout file and enable it in onInit.