I know how to show text with a button click on the same page, but my question is (since I couldn't find anything on Google): Is it possible when you click a button, that the text shows up on another activity?
Yes, you can
In your FirstActivity execute this when button is clicked:
Intent intent = new Intent(this, SecondActivity.class);
intent.putExtra("data","Messsage to be sent");
startActivity(intent);
In your SecondActivity inside onCreate():
String someData = getIntent().getStringExtra("data");
yourTextView.setText(someData);
If you need pass values between the activities you use this:
String name="aaaa";
Intent intent=new Intent(Main_Activity.this,Other_Activity.class);
intent.putExtra("name", name);
startActivity(intent);
And this code to recovery data on new Activity:
Bundle b = new Bundle();
b = getIntent().getExtras();
String name = b.getString("name");
You can use Intent for this. Intent is used to move on other activity from first activity.
You can use :
Intent i = new Intent(MainActivity.this,SecondActivity.class);
i.putExtra("YourValueKey", yourData.getText().toString());
then you can get it from your second activity by :
Intent intent = getIntent();
String YourtransferredData = intent.getExtras().getString("YourValueKey");
Related
Im making a quiz game with questions on diferent topics
For Example i have activities for these topics: Flags, Capitals, Population, Economy, Continent, etc.
And i have one single ResultActivity to obtain the Score of the quiz.
The ResultActivity has a PLAY AGAIN button.
On the FlagsActivity i have this code:
Intent intent = new Intent(getApplicationContext(),ResultActivity.class);
intent.putExtra("RIGHT_ANSWER_COUNT", score);
intent.putExtra("NAME_ACTIVITY", "FlagsActivity");
startActivity(intent);
On the CapitalActivity i have this code:
Intent intent = new Intent(getApplicationContext(),ResultActivity.class);
intent.putExtra("RIGHT_ANSWER_COUNT", score);
intent.putExtra("NAME_ACTIVITY", "CapitalActivity");
startActivity(intent);
etc.....
On the ResultActivity i have this code:
activity = getIntent().getStringExtra("NAME_ACTIVITY");
public void playAgain(View view){
if(activity.equals("FlagsActivity")){
Intent intent = new Intent(getApplicationContext(), FlagsActivity.class);
startActivity(intent);
}
if(activity.equals("CapitalActivity")){
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(intent);
}
if(activity.equals("PopulationActivity")){
Intent intent = new Intent(getApplicationContext(), PopulationActivity.class);
startActivity(intent);
}
if(activity.equals("EconomyActivity")){
Intent intent = new Intent(getApplicationContext(), EconomyActivity.class);
startActivity(intent);
}
if(activity.equals("ContinentActivity")){
Intent intent = new Intent(getApplicationContext(), ContinentActivity.class);
startActivity(intent);
}
}
Basically im sending an Intent with a String containing the name of the activity, then on the Result Activity evaluating with "if" the String = That activity name, start the activity.
What i want to do is someting like this:
On the Flags Activity:
Intent(getApplicationContext(),ResultActivity.class);
intent.putExtra(FlagsActivity.class);
startActivity(intent);
On the CapitalActivity:
Intent(getApplicationContext(),ResultActivity.class);
intent.putExtra(CapitalActivity.class);
startActivity(intent);
On the Result Activity:
activity = getIntent();
public void playAgain(View view){
Intent intent = new Intent(getApplicationContext(), activity);
startActivity(intent);
}
So that i can create as many quiz activities without having to create an "if" statement on the ResultActivity for it to work.
You can pass the class name as a string and use reflection to look up a class object for that type. Something like this:
Class classToLoad = Class.forName(getIntent().getStringExtra("NAME_ACTIVITY"));
Intent intent = new Intent(getApplicationContext(), classToLoad);
startActivity(intent);
I would pass the fully qualified class name to avoid errors.
You could pass the String of activity name to the Result activity, and get its corresponding class name using reflection:
String strActivity = "com.package.FlagsActivity";
Intent intent = new Intent(getApplicationContext(),ResultActivity.class);
intent.putExtra("activity_name", strActivity );
startActivity(intent);
String activityName = getIntent().getStringExtra("activity_name");
Class<?> myClass = Class.forName(activityName );
Intent myIntent = new Intent(getApplicationContext(), myClass);
Something like this.
In the Results Activity
public static void toActivity(Context context, final Class ActivityToOpen){
//whatever awesome code you would like to perform
Intent intent = new Intent(context, ActivityToOpen);
startActivity(intent);
}
In the originating Activity (Flags Activity for example)
ResultsActivity.toActivity(FlagsActivity.this, FlagActivity.class);
Check for typos... I kinda winged this :)
You should be able to call from any originating Activity without if statement.
When you receive the data
String activity;
Bundle bundle = getIntent().getExtras();
if (bundle != null){
activity = bundle.getString("NAME_ACTIVITY");
}
The problem I am having is that it prints out Null on the second activity and not the actual username that is entered. Is the data being passed to the second activity correctly? Does the second activity need more code? Sorry but not the best at programming.
I have this code in my main class
if (username.getText().toString().equals("batman") &&
password.getText().toString().equals("Joker")) {
Toast.makeText(MainActivity.this, "Username and
password is correct", Toast.LENGTH_SHORT).show();
Intent intent = new Intent("com.example.*******.loginpage.User");
intent.putExtra("username",String.valueOf(username));
startActivity(new Intent(MainActivity.this, User.class));
This is the code inside my second class.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_user);
Intent intent = getIntent();
String username = getIntent().getStringExtra("username");
TextView textView = (TextView) findViewById(R.id.textView4);
textView.setText("Welcome" + " " + username );
The problem is your intent in your first class
Intent intent = new Intent("com.example.*******.loginpage.User"); <-- have created an intent
intent.putExtra("username",String.valueOf(username));
startActivity(new Intent(MainActivity.this, User.class)); <-- but using new Intent
You have created an intent but you passing new intent. Use your created Intent instead of passing new Intent.
Intent intent = new Intent(MainActivity.this, User.class);
intent.putExtra("username",String.valueOf(username));
startActivity(intent);
EDIT
Instead using String.valueOf(username) you must use username.getText(), because String.valueOf(username) is method to translate your object to String.
Intent intent = new Intent(MainActivity.this, User.class);
intent.putExtra("username",username.getText());
startActivity(intent);
Two problems here.
First one is that you have to pass the intent where you put your extra instead of creating new one to startActivity, like
Intent intent = new Intent(MainActivity.this, User.class);
intent.putExtra("username",username.getText().toString());
startActivity(intent);
Second problem is that username looks like editText, String.valueOf won't pass actual value, use username.getText().toString() like i mentioned in code.
I have question about passing data between activities. Is possible from main activity open few next activities, and return result from last opened to root activity and how? I've added screenshot for better vision what I mean. Thanks for answers.
enter image description here
working with this question #Sahil Lombar
Intent i = new Intent(this, FirstActivity.class);
i.putExtra("data", "data");
startActivity(i);
in other activity we can
//firt validate if value extra "data" it was sent
if(getIntent().hashExtra("data") {
String value = getIntent().getStringExtra("data");
Log.d("SecondActivity", value);
}
working with String, int, boolean, double, Byte and array of these
more.. https://developer.android.com/reference/android/content/Intent.html
Start the First Activity with Intent holding the result;
In Activity 3
Intent i = new Intent(this, FirstActivity.class);
i.putExtra("data", "data");
startActivity(i);
finish();
In Activity 1 receive the result in public void onNewIntent or if you are starting a new activity in the onCreate method
public void onCreate(){
super.onCreate();
Intent i = getIntent();
String result = i.getStringExtra("data");
}
i want to send value from one activity's edit-text to another activity's text-view.I have written following code but when i am running the program than it is showing nothing.so can you help on this...
Home.java
Intent in = new Intent(Home.this, Splash.class);
String Data= UserName.getText().toString();
in.putExtra("text",Data);
startActivity(in);
splash.java
Intent in = new Intent(Splash.this, SearchData.class);
UserWelcome.setText(in.getStringExtra("text"));
startActivity(in);
here username is the edittext and userwelcome is the textview.
You should change in splash
UserWelcome.setText(in.getStringExtra("text"));
to
UserWelcome.setText(getIntent().getStringExtra("text"));
In splash.java do this..
UserWelcome.setText(getIntent.getStringExtra("text"));
Just replace this in splash.java
Intent in = new Intent(Splash.this, SearchData.class);
UserWelcome.setText(in.getStringExtra("text"));
startActivity(in);
with
UserWelcome.setText(getIntent().getStringExtra("text"));
I am calling an Activity using an Intent, and I need to pass variables to that Activity when is initialized. On iOS you can use a custom initialization using the initWithNibName method. How can a similar thing be achieved on Android?
Here is my code that creates an Intent...
Intent myIntent = new Intent(webPush.this, webPushActivity.class);
startActivity(myIntent);
Intent myIntent = new Intent(webPush.this, webPushActivity.class);
myIntent.putExtra("mystring",strValue)' <<---put String here
startActivity(myIntent);
and in second Activity...
String str = getIntent.getExtras().getString("mystring");<<get string in second class
and check this
How do I pass data between Activities in Android application?
You can put extra data into the Intent...
myIntent.putExtra("exampleString","This is some extra data");
myIntent.putExtra("exampleNumber",1234);
When you call the Intent, it starts the Activity. in one of the main methods of the Activity, like onCreate(), you can access the Intent and get the extras from it, like so...
Intent callingIntent = getIntent();
String exampleString = callingIntent.getStringExtra("exampleString");
int exampleNumber = callingIntent.getIntExtra("exampleNumber");
You can set extras to the intent:
myIntent.putStringExtra("First key", 1);
myIntent.putStringExtra("Second key", "some string");
And then get it in the new activity
Int extraInt = getIntent().getIntExtra("First key");
String extraString = getIntent().getStringExtra("Second key");
See more in the Intent docs
This can be done with intent extras. For example:
int variable = 6;
Intent myIntent = new Intent(webPush.this, webPushActivity.class);
myIntent.PutExtra("stringLabel", variable);
startActivity(myIntent);