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Is it possible to pass a value from Adapter to Activity?

I have Activity1, Activity1 Adapter and Activity2
I'm not able to pass value between an Adapter and Activity. When back button is pressed, I'm expecting a value to be coming from the Second Activity (Activity 2) to Activity1 Currently, it gives me null
Here are my code snippets.
Activity1 Adapter
holder.cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Activity origin = (Activity) context;
Intent intent = new Intent(context, PostActivity.class);
intent.putExtra("searchText", staggeredCustomCard.getSearchText());
origin.startActivityForResult(intent, 1);
}
});
Activity2
#Override
public void onBackPressed() {
super.onBackPressed();
Intent mIntent = new Intent();
mIntent.getStringExtra("searchText");
setResult(1, mIntent);
}
I'm expecting this searchText to be going to Activity1. Could anyone please guide me how to achieve this?

You are getting getStringExtra("searchText"); from a completely new intent, that's why it's returning null. You need to get search text from getIntent() like this:
#Override
public void onBackPressed() {
super.onBackPressed();
Intent mIntent = new Intent();
String search = getIntent().getStringExtra("searchText");
mIntent.putExtra("searchText", search);
setResult(1, mIntent);
}

Android Studio: Activity only finishes when you call the finish() for second time

So, we're working with intents at school and I'm having trouble with the intents when I try to pass data from the "Activity2" to the "Activity1", when I do the setResult() and stuff. The problem is it won't go back to the first activity when I trigger the event the first time, but it will the second.
I've been working with Android studio only for about 12h so I really lack a lot of understanding.
Here is what I'm doing:
First I call this form the main activity.
public void CheckPassword(View view) {
password = PasswordManagement.getPassword(this);
TextView txtPassword = findViewById(R.id.txtPassword);
if (txtPassword.getText().toString().equals(password)) {
Intent intent;
intent = new Intent(this, WelcomeActivity.class);
intent.putExtra("password", password);
startActivityForResult(intent, 1);
startActivity(intent);
} else {
Intent intent;
intent = new Intent(this, RestrictedActivity.class);
startActivityForResult(intent, 1);
startActivity(intent);
}
}
Then, when I'm done from the second activity I run this:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_restricted);
lblRestrictedArea = findViewById(R.id.lblRestrictedArea);
lblRestrictedArea.setOnLongClickListener(
new OnLongClickListener() {
public boolean onLongClick(View view) {
intent = new Intent();
intent.putExtra(EXTRA_RESPONSE, true);
setResult(RESULT_OK, intent);
finish();
return false;
}
});
}
And back to the main activity I overwrote this to act according to the response:
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
if (data.getBooleanExtra(RestrictedActivity.EXTRA_RESPONSE,false)){
LinearLayoutPasswordActivity.setBackgroundColor(getResources().getColor(R.color.red));
}else{
LinearLayoutPasswordActivity.setBackgroundColor(getResources().getColor(R.color.white));
}
}
}
}
If anyone can help I would be very glad, meanwhile I'll try to solve it my own.
Thanks!

Your are calling startActivity twice. So there are two instance of the same Activity and then you have to finish twice.
Keep your startActivityForResult(...) and delete startActivity in CheckPassword(View view)
->
public void CheckPassword(View view) {
password = PasswordManagement.getPassword(this);
TextView txtPassword = findViewById(R.id.txtPassword);
if (txtPassword.getText().toString().equals(password)) {
Intent intent;
intent = new Intent(this, WelcomeActivity.class);
intent.putExtra("password", password);
startActivityForResult(intent, 1);
// startActivity(intent);
} else {
Intent intent;
intent = new Intent(this, RestrictedActivity.class);
startActivityForResult(intent, 1);
//startActivity(intent);
}
}
Plus, note that you are using the same requestCode (1) for two different activities. The requestCode is very important for onActivityResult method.

How to check if firstrun has been skipped?

I have in my firstrun activity, a button that says "continue" and starts new activity (MainActivity intent), but I've found out it's possible skip that button and firstrun activity by restarting the app. So I would like to make sure it will be impossible to skip the activity.
That's what I have been thinking about:
firstEntry.java - In this method I'm putting new value in the shared preference that confirm that firstrun haven't been skipped (it only add the value if the button is clicked).
btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putBoolean(skip, false);
editor.commit();
Intent i = new Intent(getApplicationContext(), MainActivity.class);
startActivity(i);
finish();
}
OnCreate() method in MainActivity
boolean skipper = prefs.getBoolean(skip, false);
if(skipper == true){
Intent i = new Intent(getApplicationContext(), firstEntry.class);
startActivity(i);
}
OnResume function:
#Override
protected void onResume() {
super.onResume();
if (prefs.getBoolean("firstrun", true)) {// Checks if application is on its first run
Intent i = new Intent(getApplicationContext(), firstEntry.class);
startActivityForResult(i, 1);
prefs.edit().putBoolean("firstrun", false).commit();
finish();
}
}
How can I check if shared preference method "firstrun" has skipped the continue button by using shared preference values?

change following line in btn.setOnClickListener(new View.OnClickListener()
editor.putBoolean(skip, false);
to
editor.putBoolean(skip, true);
And then in OnCreate() method of firstEntry.java
boolean skipper = prefs.getBoolean(skip, false);
if(skipper == true){
Intent i = new Intent(getApplicationContext(), MainActivity.class);
Log.i("firstEntry.java","skipped the activity");
startActivity(i);
}

handling intents using SharedPreferences

Please how can i use a button in an intro activity that when pressed will take me to the main activity. The intro page is meant to show on the first use of the app.
here is my IntroActivity.java onCreate method
Button switchButton = (Button) findViewById(R.id.switchButton);
switchButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
SharedPreferences pref = getSharedPreferences("ActivityPREF", Context.MODE_PRIVATE);
if (pref.getBoolean("activity_executed", false)) {
Intent switchSwag = new Intent(IntroActivity.this, MainActivity.class);
startActivity(switchSwag);
finish();
} else {
Editor ed = pref.edit();
ed.putBoolean("activity_executed", true);
ed.commit();
}
}
});

I am assuming you want to show the intro activity only during the first time the app is started. Add the following code inside onCreate and NOT in on button click.
SharedPreferences pref = getSharedPreferences("ActivityPREF", Context.MODE_PRIVATE);
if (pref.getBoolean("activity_executed", false)) {
Intent switchSwag = new Intent(IntroActivity.this, MainActivity.class);
startActivity(switchSwag);
finish();
} else {
Editor ed = pref.edit();
ed.putBoolean("activity_executed", true);
ed.commit();
}
Then managing button click:
Button switchButton = (Button) findViewById(R.id.switchButton);
switchButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent switchSwag = new Intent(IntroActivity.this, MainActivity.class);
startActivity(switchSwag);
finish();
}
});

How to call one activity multiple times based on from which the activity has been called?

I have one activity which is common for all other activities. I want to call this activity and want to set some conditions based on from which activity it has been called. I thought of bundle for this. How can I call a condition based on bundle value? I have another activity in between. I am not calling the activity directly. So how can we pass data by using bundle?
txt_from.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
i = new Intent(getApplicationContext(), PickLocationActivity.class);
GoSendData.instance.addressType = 0;
i.putExtra("type",1);
startActivity(i);
}
});
From this I am calling second activity.
In common activity I have a view I am calling the activity back from this. The activity from which it has been called , it should be called back from this view.
useLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bundle extras = intent.getExtras();
activityType = extras.getInt("type");
if(activityType==0) {
intent = new Intent(ChooseFromMapActivity.this, GoSend.class);
startActivity(intent);
}
if(activityType == 1)
{
intent = new Intent(ChooseFromMapActivity.this, GoRideActivity.class);
startActivity(intent);
}
}
});
How to achieve this...?
How can I do this with shared preferences?

Change
Bundle extras = intent.getExtras();
to
Bundle extras = getIntent().getExtras();
Hope this helps :)

Check the below code
Activity_1. : This will send the data to the Common Activity.
Intent i = new Intent(Activity_1.this, CommonActivity.class);
i.putExtra("type",1);
startActivity(i);
Activity_2. : This will send the data to the Common Activity.
Intent i = new Intent(Activity_2.this, CommonActivity.class);
i.putExtra("type",2);
startActivity(i);
Then on your Common Activity write this code in the onCreate function.
int receivedValue = getIntent().getIntExtra("type", 0);
// here 0 is the default value when there is no data in the particular key.
now you can check the condition like this
if(receivedValue==1)
{
// do something here
}
if(receivedValue==2)
{
// do something here
}
This will definitely work for you. Try it..!!
Happy coding.

Activity1,
txt_from.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
i = new Intent(getApplicationContext(), PickLocationActivity.class);
GoSendData.instance.addressType = 0;
i.putExtra("type",1);
startActivity(i);
}
});
Activity2,
txt_from.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
i = new Intent(getApplicationContext(), PickLocationActivity.class);
GoSendData.instance.addressType = 0;
i.putExtra("type",2);
startActivity(i);
}
});
Common Activity
useLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = getIntent();
int type = i.getInt("type");
if(type==1) {
Intent intent = new Intent(ChooseFromMapActivity.this, Activity1.class);
startActivity(intent);
}
if(type == 2)
{
Intent intent = new Intent(ChooseFromMapActivity.this, Activity2.class);
startActivity(intent);
}
}
});