setText on button from another activity android

You can pass the button caption to CadastroTimes with intent as

Intent intent = new Intent(EditarTimes.this, CadastroTimes.class);intent.putExtra("buttontxt","Changed Text");startActivity(intent);

Then in CadastroTimes.java set the text of the button to the new value that you passed. The code will look like:

button = (Button)findViewById(R.id.button); // This is your reference from the xml. button is my name, you might have your own id given already.Bundle extras = getIntent().getExtras();String value = ""; // You can do it in better and cleaner wayif (extras != null) {    value = extras.getString("buttontxt");}button.setText(value);

Do remember to do it in onCreate after setContentView

//From ActivityIntent intent = new Intent(EditarTimes.this, CadastroTimes.class);intent.putExtra("change_tag", "text to change");startActivity(intent);//To Activitypublic void onCreate(..){    Button changeButton = (Button)findViewById(R.id.your_button);    // Button to set received text    Intent intent = getIntent();    if(null != intent &&              !TextUtils.isEmpty(intent.getStringExtra("change_tag"))) {        String changeText = intent.getStringExtra("change_tag");        // Extracting sent text from intent                changeButton.setText(changeText);        // Setting received text on Button     }}

1: Use intent.putExtra() to share a value from one activity another activity, as:

In ActivityOne.class :

startActivity(    Intent(        applicationContext,         ActivityTwo::class.java    ).putExtra(        "key",         "value"    ))

In ActivityTwo.class :

var value = ""if (intent.hasExtra("key")    value = intent.getStringExtra("key")

2: Modify button text programatically as:

btn_object.text = value

Hope this will help you