I'm trying to send some data from one activity to another and it's sorta working but not like I want to work.
Problem 1-Things are getting mixed up. On the Next Activity part of the listitem is going to an incorrect textView and part to the correct textview.
Problem 2- I am only able to list 1 item on the new activity but I want to be able to send multiple listitems. I think the problem lies in combining different types of putExtra request to the same place like I do here.
.putExtra("inputPrice",(CharSequence)pick)
.putStringArrayListExtra("list", listItems)
Ant help would be appreciated.
Sending Data to next Activity
final TextView username =(TextView)findViewById(R.id.resultTextView);
String uname = username.getText().toString();
final TextView uplane =(TextView)findViewById(R.id.inputPrice);
String pick = uplane.getText().toString();
final TextView daplane =(TextView)findViewById(R.id.date);
String watch = daplane.getText().toString();
startActivity(new Intent(MenuView1Activity.this,RecordCheckActivity.class)
.putExtra("date",(CharSequence)watch)
.putExtra("Card Number",(CharSequence)uname)
.putExtra("inputPrice",(CharSequence)pick)
.putStringArrayListExtra("list", listItems)
);
finish();
This is the Next Activity
Intent is = getIntent();
if (is.getCharSequenceExtra("Card Number") != null) {
final TextView setmsg = (TextView)findViewById(R.id.saleRccn);
setmsg.setText(is.getCharSequenceExtra("Card Number"));
}
Intent it = getIntent();
if (it.getCharSequenceExtra("date") != null) {
final TextView setmsg = (TextView)findViewById(R.id.saleTime);
setmsg.setText(it.getCharSequenceExtra("date"));
}
Intent id1 = getIntent();
if (id1.getCharSequenceExtra("inputPrice") != null) {
final TextView setmsg = (TextView)findViewById(R.id.saleName);
setmsg.setText(id1.getCharSequenceExtra("inputPrice"));
}
ArrayList<String> al= new ArrayList<String>();
al = getIntent().getExtras().getStringArrayList("list");
saleNotes= (TextView) findViewById(R.id.saleNotes);
saleNotes.setText(al.get(0));
Alright, a few things:
First of all you do not need to cast your strings as CharSequence.
Second thing,
Define intent, add your extras and only then call startActivity as below:
Intent intent = new Intent(MenuView1Activity.this,RecordCheckActivity.class);
intent.putExtra("date", watch);
startActivity(intent);
Third, when retrieving the intent create a bundle first as below:
Bundle extras = getIntent().getExtras();
String date = extras.getString("date");
EDIT:
Here is how you convert your entire array list to one single string and add it to your textview.
String listString = "";
for (String s : al)
{
listString += s + "\t"; // use " " for space, "\n" for new line instead of "\t"
}
System.out.println(listString);
saleNotes.setText(listString);
Hope this helps!
Try this, Don't use CharSequence just put string value
startActivity(new Intent(MenuView1Activity.this,RecordCheckActivity.class)
.putExtra("date",watch)
.putExtra("Card Number",uname)
.putExtra("inputPrice",pick)
.putStringArrayListExtra("list", listItems)
);
And get like this
Intent is = getIntent();
if (is.getCharSequenceExtra("Card Number") != null) {
final TextView setmsg = (TextView)findViewById(R.id.saleRccn);
setmsg.setText(is.getStringExtra("Card Number"));
}
Related
This question already has answers here:
How do I pass data between Activities in Android application?
(53 answers)
Closed 2 years ago.
I have made the code and there's no error, but logcat shows a NullPointerException. This is my code to pass and to catch the value from each activity. Please help me solve this.
First activity:
try {
Intent in = new Intent();
in.setClass(p_daftar_pelanggan.this, ubah_data_pelanggan.class);
in.putExtra("id", eid.getText().toString());
in.putExtra("nama", tnama.getText().toString());
in.putExtra("alamat", ealamat.getText().toString());
in.putExtra("no_hp", ehp.getText().toString());
startActivity(in);
}
catch(NullPointerException ex)
{
}
Second activity:
Bundle b = getIntent().getExtras();
String idpgu = b.getString("id");
String namapgu = b.getString("nama");
String alamatpgu = b.getString("alamat");
String hppgu = b.getString("no_hp");
idp.setText(idpgu);
idp.setKeyListener(null);
nama.setText(namapgu);
ealamat.setText(alamatpgu);
hp.setText(hppgu);
Try the following in the second activity:
Intent intent = getIntent();
String idpgu = intent.getStringExtra("id");
You can use Bundle for this purpose:
Activity destActivity = new Activty();
Bundle b = new Bundle();
destActivity.putString("TAG_ForValue",YourValue.getText().toString());
destActivity.setArguments(b);
Intent intent = new Intent(startActivity.this, destActivity.class);
startActivity(intent);
And in your destActivity :
Bundle bundle = getArguments();
if(bundle !=null)
String value = bundle.getString("TAG_ForValue");
You are sending and receiving the values correctly, but probably some values are null, you can validate setting an empty string instead of a null value:
Bundle b = getIntent().getExtras();
String idpgu = (b.getString("id") != null)? b.getString("id") : "";
String namapgu = (b.getString("nama") != null)? b.getString("nama") : "";
String alamatpgu = (b.getString("alamat") != null)? b.getString("alamat") : "";
String hppgu = (b.getString("no_hp") != null)? b.getString("no_hp") : "";
You put extras using Intent in FirstActivity But Use Bundle to receive it, that is why you have NullPointerException because SecondActivity is looking for values in different place.
Do the following in your secondActvity
Intent intent = getIntent();
String idpgu = intent.getStringExtra("id");
String namapgu = intent.getStringExtra("nama");
String alamatpgu = intent.getStringExtra("alamat");
String hppgu = intent.getStringExtra("no_hp");
// Check Null for each Values e.g.
if (idpgu.trim().equals(" "))
{ idpgu = "null";
}
I intend to share 6 text information, however it always shows the last information only, i.e.
share.putExtra(Intent.EXTRA_TEXT, Contact);
I also tried to use a string array to store all 6 information, i.e:
share.putExtra(Intent.EXTRA_TEXT, stringArray);
However, it still doesn't work. Can anyone help ? Thank you.
My code:
public class SingleJobActivity extends Activity {
// JSON node keys
private static final String TAG_POSTNAME = "PostName";
private static final String TAG_LOCATION = "Location";
private static final String TAG_SALARY = "Salary";
private static final String TAG_RESPONSIBILITY = "Responsibility";
private static final String TAG_COMPANY = "Company";
private static final String TAG_CONTACT = "Contact";
String PostName;
String Location;
String Salary;
String Responsibility;
String Company;
String Contact;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_single_job_json_parsing);
// getting intent data
Intent in = getIntent();
// Get JSON values from previous intent
PostName = in.getStringExtra(TAG_POSTNAME);
Location = in.getStringExtra(TAG_LOCATION);
Salary = in.getStringExtra(TAG_SALARY);
Responsibility = in.getStringExtra(TAG_RESPONSIBILITY);
Company = in.getStringExtra(TAG_COMPANY);
Contact = in.getStringExtra(TAG_CONTACT);
// Displaying all values on the screen
TextView lblPostName = (TextView) findViewById(R.id.PostName_label);
TextView lblLocation = (TextView) findViewById(R.id.Location_label);
TextView lblSalary = (TextView) findViewById(R.id.Salary_label);
TextView lblResponsibility = (TextView) findViewById(R.id.Responsibility_label);
TextView lblCompany = (TextView) findViewById(R.id.Company_label);
TextView lblContact = (TextView) findViewById(R.id.Contact_label);
lblPostName.setText(PostName);
lblLocation.setText(Location);
lblSalary.setText(Salary);
lblResponsibility.setText(Responsibility);
lblCompany.setText(Company);
lblContact.setText(Contact);
// listeners of our button
View.OnClickListener handler = new View.OnClickListener() {
public void onClick(View v) {
switch (v.getId()) {
case R.id.share:
shareTextUrl();
break;
}
}
};
// our button
findViewById(R.id.share).setOnClickListener(handler);
}
// Method to share either text or URL.
private void shareTextUrl() {
Intent share = new Intent(android.content.Intent.ACTION_SEND);
share.setType("text/plain");
share.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
// Add data to the intent, the receiving app will decide
// what to do with it.
share.putExtra(Intent.EXTRA_SUBJECT, "Job Information:");
share.putExtra(Intent.EXTRA_TEXT, PostName);
share.putExtra(Intent.EXTRA_TEXT, Location);
share.putExtra(Intent.EXTRA_TEXT, Salary);
share.putExtra(Intent.EXTRA_TEXT, Responsibility);
share.putExtra(Intent.EXTRA_TEXT, Company);
share.putExtra(Intent.EXTRA_TEXT, Contact);
startActivity(Intent.createChooser(share, "Share via"));
}
}
Could anyone help ?
Concatenate the six strings into one larger string, and share that larger string.
You can Concatenate the individual strings to larger string, and can get it
Intent iin = getIntent();
Bundle b = iin.getExtras();
if (b != null) {
String j = (String) b.get("name");
JSONObject name = new JSONObject(j);
Textv.setText(name.getString("postName"));
TextvDesc.setText(name.getString("location"));
}
What's wrong with your actual code
Let's first understand why you only get the last piece of data.
Your problem is by convention in Java (and this also applies to the android.content.Intent.html#putExtra(String, String[]) method you are using) the methods "putXXX" replace the actual value (if it exists) with the new one you are passing.
This is similar to java.util.Map.html#put(K, V) method.
First possible solution
For your current code to work, you would have needed to use a different key for your extra data each time, that is, something like that:
share.putExtra(SingleJobActivity.EXTRA_TEXT_NAME, PostName);
share.putExtra(SingleJobActivity.EXTRA_TEXT_LOCATION, Location);
share.putExtra(SingleJobActivity.EXTRA_TEXT_SALARY, Salary);
share.putExtra(SingleJobActivity.EXTRA_TEXT_RESPONSIBILITY, Responsibility);
share.putExtra(SingleJobActivity.EXTRA_TEXT_COMPANY, Company);
share.putExtra(SingleJobActivity.EXTRA_TEXT_CONTACT, Contact);
This would work fine (assuming you declare as public static final the keys used, and you respect the Android contract for extra data keys, such as using the full package name for the key (e.g. public static final EXTRA_TEXT_NAME = "com.yourpackage.EXTRA_DATA_NAME";).
Second possible solution
Another way of doing it is to pass one extra with a String[] (see method documentation).
String[] extraParams = new String[6];
extraParams[0] = PostName;
extraParams[1] = Location;
extraParams[2] = Salary;
extraParams[3] = Responsibility;
extraParams[4] = Company;
extraParams[5] = Contact;
share.putExtra(SingleJobActivity.EXTRA_TEXT, extraParams);
Then in your new activity you retrieve this array using android.content.Intent.html#getStringArrayExtra(String) method.
Intent intent = getIntent();
String[] extraParams = intent.getStringArrayExtra(SingleJobActivity.EXTRA_TEXT);
I want to use the string which is typed in edittext as textview in a new activity.
sub6 = (EditText)findViewById(R.id.editText16);
txt6 = (TextView)findViewById(R.id.textView25);
subject = (String) sub6.getText().toString();
txt6.setText(getResources().getString(R.id.editText16));
I have used this code. But is of no use. Can you please help me?
You can send the string using Bundle
Intent i=new Intent(A.this, B.class);
Bundle b = new Bundle();
b.putString("name", sub6.getText().toString());
i.putExtras(b);
startActivity(i);
and in the receiving activity:
Bundle extras = getIntent().getExtras();
String text = extras.getString("name");
Here's how I do it:
EditText sub6 = (EditText) findViewById(R.id.edittext16);
TextView txt6 = (TextView) findViewById(R.id.textview25);
String subject = sub6.getText().toString();
txt6.setText(subject);
You do a lot of unnecessary casts. Like your third line casts a String to a String. Which is useless. Also, declare the object types (like String, EditText, etc.) before declaring them.
In MainActivity,send the string using intent
sub6 = (EditText)findViewById(R.id.editText16);
txt6 = (TextView)findViewById(R.id.textView25);
subject = sub6.getText().toString();
Intent in=new Intent(FirstActivity.this,SecondActivity.class);
in.putExtra("key",subject);
startActivity(in);
In the second Activity recieve intent using getIntent() andthe string using key getStringExtra()
Intent in=getIntent();
String s=in.getStringExtra("key");
txt6.setText(s);
New to android, I'm currently trying to send a String value from one Activity to another. I have looked through several threads like How to use putExtra() and getExtra() for string data for an answer, but I cannot get it to work.
The string I want to send is:
public void golf(View view) {
Intent intent = new Intent(SearchSport.this, EventList.class);
intent.putExtra("type", "golf");
startActivity(intent);
and my receiver looks like
String type;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_event_list);
Intent intent = getIntent();
Bundle extras = intent.getExtras();
if ( extras != null)
type = extras.getString("type");
if (type == "golf"){
TextView eventName = (TextView) findViewById(R.id.EOName);
TextView eventTime = (TextView) findViewById(R.id.EOTime);
TextView eventLocation = (TextView) findViewById(R.id.EOLocation);
DatabaseOperations dop = new DatabaseOperations(ctx);
Cursor CR = dop.getInformation(1);
CR.moveToFirst();
eventName.setText(CR.getString(1));
eventTime.setText(CR.getString(7) + " " + CR.getString(8) + ". " + CR.getString(9) + " kl. " + CR.getString(10) + ":" + CR.getString(11));
eventLocation.setText(CR.getString(4));}
else {Toast toast = Toast.makeText(this, "Error in Type.", Toast.LENGTH_LONG);
toast.show();}
I have no Idea what's wrong here. The app displays the toast everytime I test it, instead of filling out the TextViews with the data from my database entry.
EDIT: Code has been changed based on answers, but the problem has not yet been solved. Writing if (type.equals("golf")){} instead of if (type == "golf"){} crashed the app.
EDIT 2: Problem solved! Fixed case sensitivity, used .equals instead of ==, and wrote the receiver as
if(getIntent().hasExtra("Type"))
type = getIntent().getStringExtra("Type");
In the end, it turns out is was the virtual device I used which crashed the app, for as of yet unknown reasons. When tested on an actual android phone, the app works as intented.
Thanks to everyone for their help!
try this
if(getIntent().hasExtra("Type"))
type = getIntent().getStringExtra("Type");
Change the key it is case sensitive :
type = extras.getString("Type");
Key is wrong when try to get String from Intent Extra :
type = extras.getString("type");
Replace with :
type = extras.getString("Type");
Note : Also use equals() instead == for comparing String
if (type.equals("golf")){
1) First keys are case sensitive
2) pass as
Bundle bundle = new Bundle()
bundle.putString("type","golf");
intent.putExtras(bundle);
after that get it using
Bundle received = i.getExtras();
received.getString("type");
As you are passing the value using Extra. You must have to catch that using getStringExtra(); and the Key must be case sensitive.
Intent i = getIntent();
type = i.getStringExtra("Type");
Intent in = new Intent(MainActivity.this, Player.class);
String SongName = SpinSongSelector.getSelectedItem().toString ();
startActivity (in);
i wan to send SongName to next Activity
Try this in your first activity,
Intent intent = new Intent(MainActivity.this, Player.class);
String SongName = SpinSongSelector.getSelectedItem().toString ();
intent.putExtra("message", SongName);
startActivity(intent);
and then in second activity get your string like below
Bundle bundle = getIntent().getExtras();
String message = bundle.getString("message");
then set this string to text-view (This is not necessary but just for your reference, if you want to check whether you got correct string or not)
TextView txtView = (TextView) findViewById(R.id.your_resource_textview);
txtView.setText(message);
use this line before startActivty :
intent.putExtra("SongName",SongName);
then retrieve it from the target activty.
just use
first activity to send :
Intent in = new Intent(MainActivity.this, Player.class);
String SongName = SpinSongSelector.getSelectedItem().toString ();
in.putExtra("data",SongName);
startActivity (in);
to receive in another activity:
String Sname = getIntent().getExtras().getString("data");
to see the details of intents refer here : http://developer.android.com/guide/components/intents-filters.html