I am devloping an app in which when user enter their mail id, i am storing that in a varible and passing to other activity.
For this i am using navigation drawer,in that from main activity i am passing the email to another activity that is internShips.In that i am passing the value by using its position:as shown below:
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
if(position==3)
{
Intent intent = new Intent(MainActivity.this,internships.class) ;
intent.putExtra("email", email);
startActivity(intent);
}
In internships i am using recyclerview .In that if i click on any item it will start another activity.For clicking item i am giving clicking option in internshipAdapter as shown below:
holder.itemView.setOnClickListener (new View.OnClickListener() {
#Override
public void onClick(View v)
{
Intent i = new Intent(v.getContext(), InternShipsDetails.class);
String email = i.getStringExtra("email");
i.putExtra("email" , email);
v.getContext().startActivity(i);
}
});
}
and in other activity i am getting the value using intent as shown below:
Intent intent = getIntent();
String email=intent.getStringExtra("email");
But the problem is, the value for email is showing null.So,where i am wrong,help here.
Change your code as this inside holder onClick. Because you are using intent for which you are changing your activity. So you need to use getIntent() to get email value.
Intent i = new Intent(v.getContext(), InternShipsDetails.class);
Intent emailIntent = ((Activity)v.getContext()).getIntent();
String email = emailIntent.getStringExtra("email");
i.putExtra("email" , email);
Log.d("###$email", email + "");
v.getContext().startActivity(i);
Instead of Intent i = new Intent(v.getContext(), InternShipsDetails.class)
use the context you should be passing to the adapter (The activity that the adapter is set in) and do like this:
Intent i = new Intent(context, InternShipsDetails.class);
Related
I want to receive intent on the two activity classes, but not sure how since startActivity can only start one intent to only one activity class
private void populateListView()
{
Log.d(TAG, "Populating listview");
Cursor data = dbManager.getTitle();
final ArrayList<String> listTitle = new ArrayList<>();
while (data.moveToNext())
{
listTitle.add(data.getString(1));
}
final ListAdapter adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, listTitle);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener()
{
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id)
{
String name = adapterView.getItemAtPosition(position).toString();
Cursor data = dbManager.getTitleID(name);
int titleID = -1;
while (data.moveToNext())
{
titleID = data.getInt(0);
}
if (titleID > -1)
{
Intent intent= new Intent(List_Title_Activity.this, MainActivity.class);
//Intent intent2= new Intent(List_Title_Activity.this, ViewListContents.class);
intent.putExtra("id", titleID);
intent.putExtra("title", name);
startActivity(edit);
}
else
{
Toast.makeText(List_Title_Activity.this, "No id associated with that name", Toast.LENGTH_SHORT).show();
}
}
});
MainActivity and ViewListContent:
Intent receiveIntent = getIntent();
selectedID = receiveIntent.getIntExtra("id",-1);
1 Activity is 1 page in android. That is, you can call/view 1 page/Activity at a time. If you want to share same data to multiple pages in use shared preference / Database. Or if you are using 1 activity and multiple fragments in it, use interface.
if you want to send data from one activity to 2nd activity you can use simple intent and pass data from first activity to second . But if you want to send the data first activity to second and get data from second activity to first activity i suggest you to use startActivityForResult. for more see here
I have my Cart Activity which contains the items that the user wanted to purchase.
What I want is if I click the "CHECK OUT" button, all of the data in the cart will be sent to the next Activity having ListView B.
Here is a part of my CartCustomerAdpater.class where i set the textview fields
final Order data = items.get(position);
holder.cart_name.setText(data.getName());
holder.cart_price.setText("Php "+data.getPrice());
holder.cart_qty.setText(data.getQty());
Here is a part of my Cart.class where my CHECK OUT button is located.
checkout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//WHAT SHOULD I DO HERE?
}
});
Suppose you declared your ListView:
ListView lv =(ListView) findViewById(R.id.lv);
For the case of a listView use setOnItemClickListener() , this is my sample code for sending data to the next Activity.
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
ModelClass jhild = (ModelClass) adapter.getItem(position);
Intent in = new Intent(getApplicationContext(), BuyApartmentsInformation.class);
in.putExtra(KEY_DISTRICT_NAME, jhild.getDistrict());
in.putExtra(KEY_FLOORS, jhild.getFloors());
in.putExtra(KEY_AREA, jhild.getArea());
in.putExtra(KEY_BUYLAND_CODE, jhild.getBuyno());
in.putExtra(KEY_PRICES, jhild.getPrice());
in.putExtra(KEY_INFORMATION, jhild.getInformation());
startActivity(in);
}
});
But my piece of Advice you have to update to RecyclerView
Hope it works well.
use intent
send
Intent intent = new Intent(A.this, B.class);
intent.putextra("keyName","value");
startActivity(intent);
recieve
String data = getIntent().getExtras().getString("keyName");
1. You need to implement Serializable or Parcelable in your **Order.java** class so that you can pass the ArrayList of Order through Bundle or Intent .
public class Order implements Serializable{
}
2. Pass the list of items through intent and start new activity
checkout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent newActivity = new Intent(this , NewActivity.class);
newActivity.putExtra("orderList" , items);
startActivity(newActivity);
}
});
3. Get the list in NewActivity class
List<Order> itemsList = (List<Order>)getIntent.getSerializableExtra("orderList");
Hope it helps!
I have created a list view something like this: http://imgur.com/a/bhWhR in activity1
Onitemselect i want to launch another acitivity which shows description about listitem1 like below
http://imgur.com/a/agGma
but did not find any helpful material to create and activity with same layout to get different content like this one ::
I did explore for quite some time and I could not find any solution that helped me .
Use OnItemClickListener and use intent to open other activities on item clicks
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
if (i == 1) {
Intent intent = new Intent(MainActivity.this, Lu1Activity.class);
startActivity(intent);
} else if (i == 2) {
Intent intent = new Intent(MainActivity.this, Lu2Activity.class);
startActivity(intent);
} else if (i == 3) {
Intent intent = new Intent(MainActivity.this, Lu3Activity.class);
startActivity(intent);
} else if (i == 4) {
Intent intent = new Intent(MainActivity.this, Lu4Activity.class);
startActivity(intent);
}
}
});
If you want to use same 2nd activity for each intent and show different content then use a global variable to know which item is selected and change content of 2nd activity as you wish.
Add a variable like this
public static int itemNumber;
Use OnItemClickListner
mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
itemNumber = i;
Intent intent = new Intent(MainActivity.this, OtherActivity.class);
startActivity(intent);
}
});
In OtherActivity, Set different content to your views depending on itemNumber's value.
Note: You can also use putExtra to extend data to the intent and use that to determine which item is clicked.
So im trying to figure out if I can pass a intent extra from a custom adapter to an activity which then passes that intent extra to another activity?
Is something like that possible or is there a better way to do what I want to do?
Activity A:
Intent intent = new Intent(A.this, B.class);
intent.putExtra("someString", "string");
startActivity(intent):
Activity B:
onCreate(...) {
String myString = getIntent().getStringExtra("someString");
MyAdapter myAdapter = new MyAdapter(B.this, myString);
}
MyAdapter :
Context myContext;
String myString;
MyAdapter(Context context, String string) {
this.myContext = context;
this.myString = string
}
Now you have the String from activity A into your adapter :)
I assume, that you know how to send intent extras to an activity. And what you are looking for is a way to forward that same intent to another activity. You can do it like this:
Intent intent = new Intent(this, SecondActivity.class);
intent.putExtras(getIntent());
All the answers mentioned above would work. What I ended up using was an onItemClickListener on my listview and got the information that way. Instead of starting the intent in the custom adapter, i started the intent in the activity the custom adapter was in.
yourListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//This is where you get the item clicked and specifically what you want from the custom adapter.
String yourString = ((TextView) view.findViewById(R.id.yourTextView)).getText().toString();
Intent goToNewActivity = new Intent(YourActivity.this, MainActivity.class);
goToNewActivity.putExtra("yourExtra", yourString);
startActivity(goToNewActivity);
}
});
yourListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//This is where you get the item clicked and specifically what you want from the custom adapter.
String yourString = ((TextView) view.findViewById(R.id.yourTextView)).getText().toString();
Intent goToNewActivity = new Intent(YourActivity.this, MainActivity.class);
goToNewActivity.putExtra("yourExtra", yourString);
startActivity(goToNewActivity);
}
});
Once the user chooses a product from my ListView, it then puts the selected text from that ListView into an EditText. The problem I am having is when the user selects a product from the list, and then presses back, it comes up with the list again instead of returning to the EditText activity.
I have tried using "finish();" after the activity starts but nothing seems to be working.
Activity that holds the EditText that launches the List activity:
EditText CPU = (EditText) findViewById(R.id.autoCompleteTextView4);
CPU.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent CPUList = new Intent(getApplicationContext(),
CPUList.class);
startActivityForResult(CPUList, 1);
Intent i = getIntent();
String product = i.getStringExtra("key");
EditText CPU = ((EditText) findViewById(R.id.autoCompleteTextView4));
CPU.setText(product);
}
});
List view class
#Override
public void onCreate(Bundle OnsaveInstanceState) {
super.onCreate(OnsaveInstanceState);
setContentView(R.layout.activity_cpulist);
ListView listViewCPU = (ListView) findViewById(R.id.listViewCPU);
listViewCPU.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
String CPUList[] = {
"CPU's go here", "CPU's go here", "CPU's go here", "CPU's go here" };
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, CPUList);
listViewCPU.setAdapter(adapter);
listViewCPU.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> listview, View myView,
int pos, long mylng) {
String CPU = (String) listview.getAdapter().getItem(pos);
Intent i = new Intent();
i.putExtra("key", CPU);
setResult(1, i);
finish();
}
});
You need to launch your activity in a way that it doesn't get added to back stack.
Here's how you do that: https://stackoverflow.com/a/12358563/375929
If I understand you correctly, you are calling finish() on the wrong Activity. If you want the list Activity to finish then that's where you need to call finish()
#Override
public void onItemClick(AdapterView<?> listview, View myView,
int pos, long mylng) {
String CPU = (String) listview.getAdapter().getItem(pos);
Intent i = new Intent(getApplicationContext(),
ListmenuActivity.class);
i.putExtra("key", CPU);
startActivity(getIntent());
startActivity(i);
finish(); // finish here
}
and remove finish() from your EditText Activity
Another issue I see is it looks like you are starting that second bit of code with the first using startActivityForResult() but you aren't sending back a result in your second code. Instead, you seem to be starting another Activity. It seems that second bit should be more like
#Override
public void onItemClick(AdapterView<?> listview, View myView,
int pos, long mylng) {
String CPU = (String) listview.getAdapter().getItem(pos);
Intent i = new Intent();
i.putExtra("key", CPU);
setResult(1, i);
finish(); // finish here
}