Iam building Android application that checks the format of the received message
if it starts with $A its starts Activity A and send the content of the message to Activity A
if it starts with $B it starts Activity B and send the content of the message to Activity B
Please Any help
You can do it like this
if(messages.getMessageBody().contains("$A")) {
//Write your code here
}
else if(messages.getMessageBody().contains("$B")) {
//Write your code here
}
And to pass data to the next activity,do it like this,,
Intent i = new Intent(FirstScreen.this, SecondScreen.class);
i.putExtra("STRING_I_NEED", strName);
Then, to retrieve the value try something like:
String newString;
if (savedInstanceState == null) {
extras = getIntent().getExtras();
if(extras == null) {
newString= null;
} else {
newString= extras.getString("STRING_I_NEED");
}
} else {
newString= (String) savedInstanceState.getSerializable("STRING_I_NEED");
}
Related
i have a button and edit text. i want to work differently on pressing button depending on the condition whether edittext have some text or not?
i tried the code given below but it's not working.
String baseurl = null;(global variable)
code under button's onclick listener
baseurl = edittext.getText().toString();
if(!baseurl.isEmpty()){
body...
}else if(baseurl.trim().length() == 0 || baseurl.isEmpty() || baseurl == null){
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
if condition is working but else if is not working app is crashing on 2nd condition.
Just use TextUtil library
String baseurl = edittext.getText().toString();
if(TextUtils.isEmpty(baseurl)
{
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
else
{
// body
}
Check this:
baseurl = edittext.getText().toString();
if(baseurl == null || baseurl.isEmpty() ){
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
else
{
body...
}
You do not need to use
else if(baseurl.trim().length() == 0 || baseurl.isEmpty() || baseurl ==
null)
just use else
and then add your intent code in else part
else{
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
Use the following code for button click listener
baseurl = edittext.getText().toString();
if(!baseurl.isEmpty()){
//Code for edittext has a url
}else{
// Code for edittext has nothing
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
You don't need to check again in else clause. If !baseurl.isEmpty() is false that means baseurl has a 0 length. baseurl will never be null as per your code.
Use equalsIgnoreCase() method of string:
baseurl = edittext.getText().toString();
if(!baseurl.equalsIgnoreCase("")){
body...
}else if(baseurl.trim().length() == 0 || baseurl.isEmpty() || baseurl == null){
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
initialize your baseUrl to an empty string instead of null
String baseurl = ""; (global variable)
and then check the conditions
if(!baseurl.isEmpty()){
body...
}else if(baseurl.trim().length() == 0 || baseurl.isEmpty() || baseurl == null){
Intent i = new Intent(URLFetcher.this, MainActivity.class);
startActivity(i);
}
I am developing a code in which the app takes input as speech and does the specific tasks.
I have got the code from changing speech to text but I am not able to put a if condition to create calls or open maps
here is a piece of code after getting text
case RESULT_SPEECH: {
if (resultCode == RESULT_OK && null != data) {
ArrayList<String> text = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
Text.setText(text.get(0));
String check = text.get(0);
if(check.equals("call")){
System.out.println("yes calling");
}
}
break;
}
Here I am performing if condition if he says call it should print "yes calling" but its not printing. what should I do?
Okay you can do it.
case RESULT_SPEECH: {
if (resultCode == RESULT_OK && null != data) {
ArrayList<String> text = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
Text.setText(text.get(0));
String check = text.get(0);
if(check.equals("call")){
Intent intent = new Intent(package name for app);
try{
startActivity(intent);
}catch(ActivityNotFoundException e){
}
}
}
break;
}
I need to pick contacts in my app and would like to exclude those which are stored in my SIM card. Is it possible with ACTION_PICK?
No, it's not possible
Unfortunately, it's not possible for now.
To proof it, let's dive into source code of ContanctsListActivity.
Here's an onCreate() method of the Activity. In it, ContactApp reads Intent(ACTION_PICK) we passing to it and handles it respectively:
#Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
mIconSize = getResources().getDimensionPixelSize(android.R.dimen.app_icon_size);
mContactsPrefs = new ContactsPreferences(this);
mPhotoLoader = new ContactPhotoLoader(this, R.drawable.ic_contact_list_picture);
// Resolve the intent
final Intent intent = getIntent();
// Allow the title to be set to a custom String using an extra on the intent
String title = intent.getStringExtra(UI.TITLE_EXTRA_KEY);
if (title != null) {
setTitle(title);
}
String action = intent.getAction();
String component = intent.getComponent().getClassName();
// When we get a FILTER_CONTACTS_ACTION, it represents search in the context
// of some other action. Let's retrieve the original action to provide proper
// context for the search queries.
if (UI.FILTER_CONTACTS_ACTION.equals(action)) {
mSearchMode = true;
mShowSearchSnippets = true;
Bundle extras = intent.getExtras();
if (extras != null) {
mInitialFilter = extras.getString(UI.FILTER_TEXT_EXTRA_KEY);
String originalAction =
extras.getString(ContactsSearchManager.ORIGINAL_ACTION_EXTRA_KEY);
if (originalAction != null) {
action = originalAction;
}
String originalComponent =
extras.getString(ContactsSearchManager.ORIGINAL_COMPONENT_EXTRA_KEY);
if (originalComponent != null) {
component = originalComponent;
}
} else {
mInitialFilter = null;
}
}
Log.i(TAG, "Called with action: " + action);
mMode = MODE_UNKNOWN;
if (UI.LIST_DEFAULT.equals(action) || UI.FILTER_CONTACTS_ACTION.equals(action)) {
.....
else if (Intent.ACTION_PICK.equals(action)) {
// XXX These should be showing the data from the URI given in
// the Intent.
final String type = intent.resolveType(this);
if (Contacts.CONTENT_TYPE.equals(type)) {
mMode = MODE_PICK_CONTACT;
} else if (People.CONTENT_TYPE.equals(type)) {
mMode = MODE_LEGACY_PICK_PERSON;
} else if (Phone.CONTENT_TYPE.equals(type)) {
mMode = MODE_PICK_PHONE;
} else if (Phones.CONTENT_TYPE.equals(type)) {
mMode = MODE_LEGACY_PICK_PHONE;
} else if (StructuredPostal.CONTENT_TYPE.equals(type)) {
mMode = MODE_PICK_POSTAL;
} else if (ContactMethods.CONTENT_POSTAL_TYPE.equals(type)) {
mMode = MODE_LEGACY_PICK_POSTAL;
}
....
// VERY LONG IF WITH DIFFERENT MODE-SELECTION
....
}
.....
if (mMode == MODE_JOIN_CONTACT) {
setContentView(R.layout.contacts_list_content_join);
} else if (mSearchMode) {
setContentView(R.layout.contacts_search_content);
} else if (mSearchResultsMode) {
setContentView(R.layout.contacts_list_search_results);
} else {
setContentView(R.layout.contacts_list_content);
}
setupListView();
...
}
It's very long method (and I also suggest to check setupListView() method), but pretty straightforward. And, as you can see, there's no parameter you can pass to specify source of contacts you want to pick from. Only thing you can configure here is the particular mMode ContactsApp to use (MODE_PICK_CONTACT, MODE_PICK_PHONE, etc.) - but unfortunately number of possible modes is very limited by 6 and non of them suits you.
(If anyone needs to pass mMode to ContanctsListActivity - use intent's setType() method, for example: intent.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_TYPE);)
Workaround
As a workaround - as tiny sunlight's suggested in comments - render non-SIM contacts within the app and pick the one you needed from there.
How to get all android contacts but without those which are on SIM - this link looks like most promising one explaining how to query cursor with all contacts, apart from SIM ones.
I hope, it helps
I want to implement a search in my Android application.
In this page, first I am displaying a user list and then performing a search on the user list. Both are in the same activity. In the following manner, I am getting intent and some values from the previous page. When I display the user list, all the values are coming. But while performing search, spaceId gets lost and becomes null. I need this value.
Intent intent = this.getIntent();
Bundle receiveBundle = intent.getExtras();
spaceId = receiveBundle.getString("spaceId");
What should I do to get this value?
Edit:
String spaceId;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = this.getIntent();
Bundle receiveBundle = intent.getExtras();
spaceId = receiveBundle.getString("spaceId");
String URLTicketList = String.format(getString(R.string.URLTicketList, spaceId));
RestClient client = new RestClient(URLTicketList,
this.getApplicationContext());
try {
client.Execute(RequestMethod.GET);
} catch (Exception e) {
e.printStackTrace();
}
TabSettings ts = new TabSettings();
ts.setSelTab(0);
String response = client.getResponse();
tickets = parseTicketList(response);
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
searchResult=getMatchingStrings(tickets,query);
this.ticket_adapter = new TicketAdapter(this,
R.layout.ticket_details_row,searchResult);
setListAdapter(this.ticket_adapter);
}
else {
this.ticket_adapter = new TicketAdapter(this,
R.layout.ticket_details_row, tickets);
setListAdapter(this.ticket_adapter);
}
}
getMatchingstrings()
ArrayList<Ticket> getMatchingStrings(ArrayList<Ticket> list, String regex1) {
ArrayList <Ticket> listClone = new ArrayList<Ticket>();
for (Ticket string : list) {
if(string.getAssignedTo().equals(regex1)){
listClone.add(string);
}
}
return listClone;
}
Try it
getIntent().getExtras().getString("spaceId");
You said your activity is recreating. So you are not getting the value of spaceID after recreation. Then do this thing as below.
public String PREFS_NAME = "Shared_Pref";
Bundle receiveBundle = this.getIntent().getExtras();
String spaceId_value = receiveBundle.getString("spaceId");
SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
if(spaceId_value == null) {
spaceId_value = settings.getString("spaceId", "");
}
else {
SharedPreferences.Editor editor = settings.edit();
editor.putString("spaceId", spaceId_value);
}
I hope this will help you out.
edit :
I am editing your code.
Which part i have edited, i have mentioned that part as edited. Carefully see what i have changed and do that thing in your code. Then let me know.
String spaceId;
public String PREFS_NAME = "Shared_Pref"; //edited part
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//editing start
SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
Bundle receiveBundle = this.getIntent().getExtras();
if(receiveBundle != null) {
spaceId = receiveBundle.getString("spaceId");
if(spaceId == null) {
spaceId = settings.getString("spaceId", "");
}
else {
SharedPreferences.Editor editor = settings.edit();
editor.putString("spaceId", spaceId);
}
}
//editing end
String URLTicketList = String.format(getString(R.string.URLTicketList, spaceId));
RestClient client = new RestClient(URLTicketList,
this.getApplicationContext());
try {
client.Execute(RequestMethod.GET);
} catch (Exception e) {
e.printStackTrace();
}
TabSettings ts = new TabSettings();
ts.setSelTab(0);
String response = client.getResponse();
tickets = parseTicketList(response);
if (Intent.ACTION_SEARCH.equals(intent.getAction())) {
String query = intent.getStringExtra(SearchManager.QUERY);
searchResult=getMatchingStrings(tickets,query);
this.ticket_adapter = new TicketAdapter(this,
R.layout.ticket_details_row,searchResult);
setListAdapter(this.ticket_adapter);
}
else {
this.ticket_adapter = new TicketAdapter(this,
R.layout.ticket_details_row, tickets);
setListAdapter(this.ticket_adapter);
}
}
When you are firstly loading your list in activity,you have to save that spaceId in some SharedPreference variable for further use.And while reloading activity with search result,you can find that Id from SharedPreference variable previously saved.
Be sure,you overwrite that variable as and when you firstly load list in your activity to meet your needs cleanly.
Also you have to get spaceId from intent like:
int spaceId=0;
if(getIntent().hasExtra())
spaceId=getIntent().getStringExtra("spaceId");
Doing this wont give you excpetion when you reload the same activity with no extras to your intent.
Or,you will have to pass this spaceId along with intent you are using to reload the same activity for showing search result.
Hope,you get the point!
If u relaunching the same activity while performing search,u will lost that value. If u r doing so,while relaunching also pass that spaceId to the relaunching activity also using intent.putextra() method
as in your question and comments i guess you are getting problem if your activity is recreated
add following code in manifest file under your activity tag
android:configChanges="keyboardHidden|orientation"
your activity will not be created again
and then use the value of spaceID where you need
I am passing values between two activities and fetching the values like this:
Bundle extras = getIntent().getExtras();
if (extras != null)
{
initialUrl = extras.getString("initialUrl");
isFollow = extras.getString("isFollow");
}
if (isFollow == "true") {
editUrl.setText(initialUrl);
setUpWebView(initialUrl);
} else if (isFollow == "false") {
editUrl.setText("http://www.google.com");
setUpWebView("http://www.google.com");
}
the problem is I can see the values being retrieved in the debug window by adding watch to the variables but when the compiler enters the statement if(isFollow=="true"), the condition fails. The else case is also not dealt with. What else do i need to do to ensure that my if condition is satisfied properly?
You should use
isFollow.equals("true")
in your statements.
If String type of data is put in bundle then Try with the following code
String isFollow = null;
Bundle extras = getIntent().getExtras();
if (extras != null)
{
initialUrl = extras.getString("initialUrl");
isFollow = extras.getString("isFollow");
}
if (isFollow.equals("true")) {
editUrl.setText(initialUrl);
setUpWebView(initialUrl);
} else if (isFollow.equals("false")) {
editUrl.setText("http://www.google.com");
setUpWebView("http://www.google.com");
}
If Boolean type of data is put in bundle then Try with the following code
boolean isFollow = null;
Bundle extras = getIntent().getExtras();
if (extras != null)
{
initialUrl = extras.getString("initialUrl");
isFollow = extras.getBoolean("isFollow");
}
if (isFollow) {
editUrl.setText(initialUrl);
setUpWebView(initialUrl);
} else {
editUrl.setText("http://www.google.com");
setUpWebView("http://www.google.com");
}
You need to test either
isFollow.equals("true") or if it is a boolean and not a string, either
isFollow == true or just plain isFollow
(note the no quotes on the second one)
I know this is a really late answer but it would be better to do this if you are passing a Boolean into the intent from the sender:
Boolean isFollow = extras.getBoolean("isFollow");
if(isFollow) {
//Do stuff
}