I'm new on Android and I want to know how I can use Serializable in my code
First Activity:
#Override
public void onItemClick(Neighbour item) {
Intent i = new Intent(getActivity(), ProfilNeighbourActivity.class);
i.putExtra("avatar", item.getAvatarUrl());
i.putExtra("name", item.getName());
i.putExtra("city", item.getAddress());
i.putExtra("phone", item.getPhoneNumber());
i.putExtra("about", item.getAboutMe());
i.putExtra("fbUrl", item.getFbUrl());
startActivity(i);
}
Second Activity:
mAvatar = findViewById(R.id.profil_neighbour_image);
mName1 = findViewById(R.id.profil_neighbour_name1);
mName2 = findViewById(R.id.profil_neighbour_name2);
mCity = findViewById(R.id.profil_neighbour_city);
mPhone = findViewById(R.id.profil_neighbour_phone);
mAbout = findViewById(R.id.profil_neighbour_about);
mFbUrl = findViewById(R.id.profil_neighbour_fbUrl);
Intent i = getIntent();
String image = i.getStringExtra("avatar");
String name = i.getStringExtra("name");
String city = i.getStringExtra("city");
String phone = i.getStringExtra("phone");
String about = i.getStringExtra("about");
String fbUrl = i.getStringExtra("fbUrl");
Glide.with(this).asBitmap().load(image).fitCenter().into(mAvatar);
mName1.setText(name);
mName2.setText(name);
mCity.setText(city);
mPhone.setText(phone);
mFbUrl.setText(fbUrl + name);
mAbout.setText(about);
How can I shorten my code with Serializable please?
you can use passing objects around then Parcelable
more details : Parcelable
Related
enter image description here
I want to fetch the data from previous activity (using getIntent) in a .java class and same the data to next activity through intent. can anyone help me how.Thanks in advance.
public class AddToCartHelper {
public static void addToCart(Context context, Intent intent) {
String TAG = "AddToCart";
DecimalFormat decimalFormat;
boolean loginflagforuser = false, loginflagforguest = false;
String advId = "", num = "", uid = "", productName = "", emailCart = "",cartMessage = "";
Double price = 0.0;
Integer quantity = 1;
SharedPreferences preferences = context.getSharedPreferences("SECRETFILE", Context.MODE_PRIVATE);
loginflagforuser = preferences.getBoolean(Parameters.userEmail, false);
loginflagforguest = preferences.getBoolean(Parameters.guestEmail, false);
decimalFormat = new DecimalFormat("##.##");
if (loginflagforuser){
Intent fromCart = getIntent();
// imageId = fromCart.getStringExtra("image_url");
advId = fromCart.getStringExtra("Advid");
price = fromCart.getDoubleExtra("price", 0.0);
num = fromCart.getStringExtra("num");
uid = fromCart.getStringExtra("uid");
Log.d(TAG, "--- REGISTERD UID::::::::: " + uid);
quantity = fromCart.getIntExtra("quantity", 1);
productName = fromCart.getStringExtra("cart_product_name");
// total = fromCart.getDoubleExtra("total", 0.0);
emailCart = preferences.getString("email", null);
}else if (loginflagforguest){
}else{
}
}
}
you don't need to use this Intent fromCart = getIntent();,because in constructor you already pass intent ,then just use intent object
dvId = intent.getStringExtra("Advid");
price = intent.getDoubleExtra("price", 0.0);
num = intent.getStringExtra("num");
uid = intent.getStringExtra("uid");
Log.d(TAG, "--- REGISTERD UID::::::::: " + uid);
quantity = intent.getIntExtra("quantity", 1);
productName = intent.getStringExtra("cart_product_name");
// total = intent.getDoubleExtra("total", 0.0);
You have already pass parameter intent to addToCart function, so instead of advId = fromCart.getStringExtra("Advid");, you can use advId = intent.getStringExtra("Advid");
there is two ways to passing the data to the next activity you can either use intent or can use local broadcast receiver
if you want to fetch data from the previous activity then use
String a= getIntent().getStringExtra( "");// pass the name that you used in the previous activity
Why the value did not appear in the second activity which is consultDoctorAnaemia? I think the code is already correct. But it display null.
resultAnaemia
if(symptom16.equals("Yes"))
{
weight=0.11;
newWeight = 0.0 * 0.15; //cf disease = 0.6, [min=0.15]
String cf = Double.toString(newWeight);
Intent intent = new Intent(resultAnemia.this, consultDoctorAnaemia.class);
intent.putExtra("cfDiseases", cf);
startActivity(intent);
}
consultDoctorAnaemia
TextView textView = (TextView) findViewById(R.id.textCF);
//get passed intent
Intent intent = getIntent();
if(null != intent)
{
//get cf value from intent
String cf = intent.getStringExtra("cfDiseases");
textView.setText("Certainty value : " + cf);
}
Bundle extras = getIntent().getExtras();
if (extras != null) {
String Diseases = extras.getString("cfDiseases");
}
You need to do in the consultDoctorAnaemia activity:
Bundle bundle = getIntent().getExtras();
String value2 = bundle.getString("cfDiseases");
Try this in first activity:
// do your intent setup somewhere and then setup bundle
Bundle info = new Bundle();
info.putString("cfDiseases", cf);
intent.putExtras(info);
startActivity(intent);
In new activity:
Bundle info = new Bundle();
info = getIntent().getExtras();
cf = info.getString("cfDiseases");
You can also pass value like this way
Declare your string global and static For example
Declare in variable in this class
Class A
public class A extends Activity{
static String cf = "abcde";
}
Access variable in this B class
class B
public class B extends Activity{
String Temp;
//you can get variable like this
Temp=A.cf ;
Toast.makeText(B.this, "Temp = "+Temp, Toast.LENGTH_SHORT).show();
}
I want to send int parameter in intent like this:
String textname = (String) dataItem.get("name");
Intent m = new Intent(list.this,main.class);
m.putExtra("name",textname);
m.putExtra("page",1);
startActivity(m);
and in main class I get that parameter
Intent intent = getIntent();
name = intent.getStringExtra("name");
page1 = Integer.parseInt(intent.getStringExtra("page"));
but when I run my code it force closes!!!
You should use getIntent().getIntExtra(name, defaultValue) instead of Integer.parseInt(intent.getStringExtra("page"));
Update:
int defaultValue = -1;// take any default value of your choice
String name = intent.getStringExtra("name");
int page1 = intent.getIntExtra("page", defaultValue);
I in other class use the main class and send parameter to it and it work without any problem but just in list class i have problem
in other class i like this send parameter
protected void onListItemClick(ListView l, View v, int position, long id) {
Intent i = new Intent(list_sub.this,main.class);
i.putExtra("name", Name[position]);
i.putExtra("page", Ted[position]);
startActivity(i);
}
and in refresh class i get ted parameter
private void refresh(){
db.open();
int s = db.List_count("text", ID);
Name= new String[s];
Ted=new String[s];
for(int i=0;i<s;i++){
Name[i]=db.List_display_sub("text", ID, i);
Ted[i]=db.page_count("text", Name[i].toString())+"";
}
db.close();
}
Activity A
String textname = (String) dataItem.get("name");
Intent m = new Intent(list.this,main.class);
m.putExtra("name",textname);
m.putExtra("page",1);
startActivity(m);
Activity B
Intent intent = getIntent();
name = intent.getStringExtra("name");
int page = intent.getIntExtra("page", 0);
where 0 is the default value.
I need to get strings values from two different activities say activity1 and activity2, each activity should have maximum 4 edittext field..so totally eight fields should be displayed orderly in activity3. I have tried the code which is not displaying in the activity3.
Look at code,
Activity1
String namef = fname.getText().toString();
Intent first = new Intent(AssessmentActivity.this, Second.class);
first.putExtra("list1", namef);
startActivity(first);
String namel = lname.getText().toString();
Intent second = new Intent(AssessmentActivity.this, Second.class);
second.putExtra("list2", namel);
startActivity(second);
String phone = mob.getText().toString();
Intent third = new Intent(AssessmentActivity.this, Second.class);
third.putExtra("list3", phone);
startActivity(third);
String mailid = email.getText().toString();
Intent fourth = new Intent(AssessmentActivity.this, Second.class);
fourth.putExtra("list4", mailid);
startActivity(fourth);
Activity2
String cont = addr.getText().toString();
Intent fifth = new Intent(Second.this, Third.class);
fifth.putExtra("list5", cont);
startActivity(fifth);
String db = dob.getText().toString();
Intent sixth = new Intent(Second.this, Third.class);
sixth.putExtra("list6", db);
startActivity(sixth);
String nation = citizen.getText().toString();
Intent Seventh = new Intent(Second.this, Third.class);
Seventh.putExtra("list7", nation);
startActivity(Seventh);
String subject = course.getText().toString();
Intent Eight = new Intent(Second.this, Third.class);
Eight.putExtra("list8", subject);
startActivity(Eight);
*Activity3*
TextView first = (TextView)findViewById(R.id.textView2);
String fieldone = getIntent().getStringExtra("list1" );
first.setText(fieldone);
TextView second = (TextView)findViewById(R.id.textView3);
String fieldtwo = getIntent().getStringExtra("list2" );
second.setText(fieldtwo);
TextView third = (TextView)findViewById(R.id.textView4);
String fieldthree = getIntent().getStringExtra("list3" );
third.setText(fieldthree);
TextView fourth = (TextView)findViewById(R.id.textView5);
String fieldfour = getIntent().getStringExtra("list4" );
fourth.setText(fieldfour);
TextView fifth = (TextView)findViewById(R.id.textView6);
String fieldfive = getIntent().getStringExtra("list5" );
fifth.setText(fieldfive);
TextView sixth = (TextView)findViewById(R.id.textView7);
String fieldsix = getIntent().getStringExtra("list6" );
sixth.setText(fieldsix);
TextView seventh = (TextView)findViewById(R.id.textView8);
String fieldseven = getIntent().getStringExtra("list7" );
seventh.setText(fieldseven);
TextView eight = (TextView)findViewById(R.id.textView3);
String fieldeight = getIntent().getStringExtra("list8");
eight.setText(fieldeight);
I think you want to pass all of them into the new activity, not start a new activity with each.
Intent first = new Intent(AssessmentActivity.this, Second.class);
String namef = fname.getText().toString();
first.putExtra("list1", namef);
String namel = lname.getText().toString();
first.putExtra("list2", namel);
String phone = mob.getText().toString();
first.putExtra("list3", phone);
String mailid = email.getText().toString();
first.putExtra("list4", mailid);
startActivity(first);
Then when in your Second (the second activity)'s onCreate you can pull each of those and store them. Then when you're sending to the Third you can add each back in to the intent.
Intent fifth = new Intent(Second.this, Third.class);
fifth.putExtra("list1", namef_stored);
fifth.putExtra("list2", namel_stored);
fifth.putExtra("list3", phone_stored);
fifth.putExtra("list4", mailid_stored);
String cont = addr.getText().toString();
fifth.putExtra("list5", cont);
String db = dob.getText().toString();
fifth.putExtra("list6", db);
String nation = citizen.getText().toString();
fifth.putExtra("list7", nation);
String subject = course.getText().toString();
fifth.putExtra("list8", subject);
startActivity(fifth);
I have a way that I know is not the best way of sending them over rite now but I'm sending them as strings and converting them to an Int on the reciver side, the problem is when I do the conversion it crashes on my phone. This is what I have on my sender side:
public void sendMessage(View view) {
// Do something in response to button
Intent intent = new Intent(this, PayTracker.class);
// hourly wage send
EditText editText = (EditText) findViewById(R.id.hourly_wage);
String message1 = editText.getText().toString();
intent.putExtra(MESSAGE_1, message1);
// ot wage send
EditText editText1 = (EditText) findViewById(R.id.ot_wage);
String message2 = editText1.getText().toString();
intent.putExtra(MESSAGE_2, message2);
// hours per day send
EditText editText2 = (EditText) findViewById(R.id.hours_day);
String message3 = editText2.getText().toString();
intent.putExtra(MESSAGE_3, message3);
// start new activity
startActivity(intent);
And this is what is on my reciving side:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pay_tracker);
getActionBar().setDisplayHomeAsUpEnabled(true);
// Receive messages from options page
Intent intent = getIntent();
String message1 = intent.getStringExtra(Options.MESSAGE_1);
String message2 = intent.getStringExtra(Options.MESSAGE_2);
String message3 = intent.getStringExtra(Options.MESSAGE_3);
// convert string to integer
int HW = Integer.valueOf(message1);
int OTW = Integer.valueOf(message2);
int HPD = Integer.valueOf(message3);
Ive tested everything and its the conversion that is causing the app to crash, i was hoping somebody could help me make it not crash or give me a whole new way sending an int to my second activity insted of sending a string and converting it.
Thank you!
=======================================================================
Here is my new code with all your help!
Sending:
public void sendMessage(View view) {
// Do something in response to button
Intent intent = new Intent(this, PayTracker.class);
// Gather text from text boxes
EditText editText = (EditText) findViewById(R.id.hourly_wage);
EditText editText1 = (EditText) findViewById(R.id.ot_wage);
EditText editText2 = (EditText) findViewById(R.id.hours_day);
//Create String from text
String message1 = editText.getText().toString();
String message2 = editText1.getText().toString();
String message3 = editText2.getText().toString();
//Convert String to Int
int HW = 0, OTW = 0, HPD = 0;
try{
HW = Integer.valueOf(message1);
OTW = Integer.valueOf(message2);
HPD = Integer.valueOf(message3);
}
catch(NumberFormatException nfe){
//do something else here
//for e.g. initializing default values to your int variables
}
// Send Integers to PayTracker.java
intent.putExtra(MESSAGE_HW, HW);
intent.putExtra(MESSAGE_OTW, OTW);
intent.putExtra(MESSAGE_HPD, HPD);
// start new activity
startActivity(intent);
}
Receiving side:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pay_tracker);
getActionBar().setDisplayHomeAsUpEnabled(true);
// Receive messages from options page
Intent intent = getIntent();
int HW = intent.getIntExtra(Options.MESSAGE_HW, 0);
int OTW = intent.getIntExtra(Options.MESSAGE_OTW, 0);
int HPD = intent.getIntExtra(Options.MESSAGE_HPD, 0);
// set textview
TextView textView = (TextView) this.findViewById(R.id.yourpay);
textView.setText(String.valueOf(HW));
}
You don't need to pass Integers as Strings to be converted back in the receiving Activity. Intents can hold Integers as well as Strings.
Simply add your data like you normally would:
int foo = 5;
Intent intent = new Intent(this, bar.class);
intent.putExtra("foobar", foo);
And then retrieve your int from the intent in the receiving Activity as follows.
Intent intent = getIntent();
int foo = intent.getIntExtra("foobar", 0);
Intents can hold more data than just Strings. In fact, take a look at the documentation. You can see that Intents can hold Longs, Doubles, Floats, Parcelables, etc.
Pass data from one activity to another activity "String" value.useing intent
Activityone
Intent intent = new Intent(Activityone.this,Activitytwo.class)
intent.putExtra("TYPE", type);
startActivity(intent);
Activitytwo
Intent intent =getIntent();
Receivevalue =intent.getExtras().getString("TYPE");
(OR)
Receivevalue = getIntent().getExtras().getString("TYPE");
Pass data from one activity to another activity "Integer" value.useing intent
Activityone
Intent intent = new Intent(Activityone.this,Activitytwo.class)
intent.putExtra("TYPE", type);
startActivity(intent);
Activitytwo
Intent intent = getIntent();
value = intent.getIntExtra("TYPE", 0);
// Type = intent.getIntExtra(name, defaultValue);
Try something like this on the send side:
String message1 = editText.getText().toString();
intent.putExtra("MESSAGE_1", message1);
String message2 = editText1.getText().toString();
intent.putExtra("MESSAGE_2", message2);
String message3 = editText2.getText().toString();
intent.putExtra("MESSAGE_3", message3);
Receive side:
if (getIntent() != null) {
if (getIntent().getExtras() != null) {
String mess1 = getIntent().getExtras().getString("MESSAGE_1");
String mess2 = getIntent().getExtras().getString("MESSAGE_2");
String mess3 = getIntent().getExtras().getString("MESSAGE_3");
}
}
You can achieve your goal using following code
In Your Calling Activity
Intent value = new Intent(YourCallingActivity.this,DestinationActivity.class);
value.putExtra("integerone", integeronevalue);
value.putExtra("integertwo", integertwovalue);
value.putExtra("integerthree", integertwovalue);
startActivity(value);
In Destination Activity
int integerone = getIntent().getExtras().getInt("integerone");
int integertwo = getIntent().getExtras().getInt("integertwo");
int integerthree = getIntent().getExtras().getInt("integerthree");
Hope it helps
Encapsulate the conversion part within try/catch block, because your strings may not be convertible into integer values.
int HW, OTW, HPD;
try{
HW = Integer.valueOf(message1);
OTW = Integer.valueOf(message2);
HPD = Integer.valueOf(message3);
}
catch(NumberFormatException nfe){
//do something else here
//for e.g. initializing default values to your int variables
}
*Or more appropriately, pass the integer values in your sending part and receive them as it is.