Develop Reference

the intent always return the default value

i have many activities and i need to move an integer data from one to another one >>
in the first activity i have this code
final Intent go_to_main = new Intent(getBaseContext() , MainActivity.class);
go_to_main.putExtra("data" , i1) ;
and the secound one
Intent intent = getIntent() ;
data = intent.getIntExtra("data",3) ;
bbut always return the default which is 3 here
i have tried the bundle but when i use it like that my app stoping when i click the button to move to the secound activity
Intent go_to_main = new Intent(getApplicationContext() , MainActivity.class);
Bundle mBundle = new Bundle();
mBundle.putInt("data", i1);
go_to_main.putExtras(mBundle);
and in the secound one i have this code
Intent intent = getIntent() ;
data = intent.getExtras().getInt("data") ;
the error in the logcat is :
2020-05-30 18:27:56.461 14976-15008/com.e.pluspath E/eglCodecCommon: GoldfishAddressSpaceHostMemoryAllocator: ioctl_ping failed for device_type=5, ret=-1

Don't think you have to use bundle.
for go_to_main intent:
Intent go_to_main = new Intent(getApplicationContext() , MainActivity.class);
go_to_main.putExtra("data", i1);
And for your receiving end:
Intent intent = getIntent() ;
data = intent.getIntExtra("data", 0);

Sending multiple integers with intent

i am trying to send two values to another page, but everytime only one of them is working.Here is my code:
Sending:
Intent i = new Intent(getApplicationContext(),fight_1.class);
i.putExtra("deger2",ana_ekran_arti1_int);
startActivity(i);
Intent i = new Intent(getApplicationContext(),fight_1.class);
i.putExtra("deger", ana_ekran_can_int);
startActivity(i);
Taking:
int i = getIntent().getIntExtra("deger",-1);
int ii = getIntent().getIntExtra("deger2",-1);
arti1= ii;
fight_1_arti1.setText(arti1+"");
fight_1_can_int=i;
fight_1_can.setText(fight_1_can_int+"");

You are only sending one value you have to use the same intent without creating a new object.
I hope this helps
Intent i = new Intent(getApplicationContext(),fight_1.class);
i.putExtra("deger2", ana_ekran_arti1_int);
i.putExtra("deger", ana_ekran_can_int);
startActivity(i);

Android getting values from intent

Below shown is the code, i am using to get values from the intent
Bundle extras = intent.getExtras();
extras object has the follwoing information
Bundle[{message=Order #400000063 is Ready for pickup, android.support.content.wakelockid=2, collapse_key=do_not_collapse, from=552489062080, e_id=364}]
When I say
extras.getString("message");
returns null. I am not sure how to get the values ?

In your Activity1:
Intent i = new Intent(Activity1.this,Activity2.class);
i.putExtra("message", "string_value");
startActivity(i);
In your Activity2:
// do a try/catch block or check
//if getIntent().getStringExtra("message") is null
String str = getIntent().getStringExtra("string_tag");

Probably you are writing different tag name ..
Use the same tag name which you used while sending data with Intent.
while sending data if you used code as
Intent i = new Intent(Activity1.this,Activity2.class);
i.putExtra("TAG_NAME", "string_value");
startActivity(i);
then use code below as
String str = getIntent().getStringExtra("TAG_NAME");
try it...

Passing a string value between two different android applications?

Is it possible to be able to pass a string value between two different applications?
First app:
final Bundle bundle = this.getIntent().getExtras();
final String a = bundle.getString("data");
Intent i = new Intent(Intent.ACTION_MAIN);
PackageManager manager = getPackageManager();
i = manager.getLaunchIntentForPackage("me.stuart.foodapp");
i.addCategory(Intent.CATEGORY_LAUNCHER);
Bundle extras = new Bundle();
extras.putString(a, a);
i.putExtras(extras);
startActivity(i);
Second app:
Bundle bundle = this.getIntent().getExtras();
String a = bundle.getString("data");

You can send a broadcast with data from one application to another. Broadcasts are by their nature a cross-application facility

intent.putExtra not working

I need to pass information between two activities, but for some reason the information isn't sent / recieved.
LogCat doesn't give me any errors. The dubugger clearly shows something is added to the intent (variabl: mExtras), but it's hard to interpret exactly what is added. After that it gives me "source not found" and doesn't help me further.
But first things first. Am I doing things right so far?
Sending:
Intent intent = new Intent ( this, TaskListActivity.class );
intent.putExtra ( ProjectManager.ID, mId.toString () );
startActivity ( intent );
Recieving:
Intent intent = getIntent ();
mId = UUID.fromString ( intent.getStringExtra ( ProjectManager.ID ) );

add following code after intent:
Bundle extras = intent.getExtras();
String exampleString = extras.getString(ProjectManager.ID);

what is ProjectManager.ID?, you should pass same uniquekey while recieving data from putExtra even way of receiving data is wrong, check below code:
Sending:
Intent intent = new Intent ( this, TaskListActivity.class );
intent.putExtra (ProjectManager.ID, mId.toString () );
startActivity ( intent );
Recieving:
Bundle extras = intent.getExtras();
if(extras!=null){
String _Str = extras.getString(ProjectManager.ID);
}

Try This to Receive Extra:
Bundle extras = getIntent().getExtras();
String id;
if (extras != null) {
id= extras.getString(key);
}

In FirstActivity.java write these code.
Intent i = new Intent(FirstActivity.this,SecondActivity.class);
i.putExtra("KEY",value);
startActivity(i);
In SecondActivity.java:
Bundle extras=getIntent().getExtras();
String name=extras.getString("key"); //if data you are sending is String.
int i=extras.getInt("key"); //if data you are sending is integer.

To retrieve the extras in the new activity:
String valueOfExtra;
Intent i = getIntent();
//check first
if(i.hasExtra("extra1")){
valueOfExtra = i.getStringExtra("extra1");
}