I want to show selected checkbox values with calories to another activity when button clicked in Android Studio. And show total calorie intake in editText in second activity. I want to show them with textView in second activity. I am trying to pass checked values with their calories to another activity(it's textview.)

Could you help me, how can I do that?. :(

This is my first class :

'''

public class Nutrition extends AppCompatActivity {

FloatingActionButton buttonNext ;
FloatingActionButton buttonBack ;
CheckBox apple ;
CheckBox egg ;
CheckBox pasta ;
CheckBox pizza ;
CheckBox broccoli ;
CheckBox banana ;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_nutrition);


    apple = (CheckBox) findViewById(R.id.apple);
    egg = (CheckBox) findViewById(R.id.egg);
    pasta = (CheckBox) findViewById(R.id.pasta);
    pizza = (CheckBox) findViewById(R.id.pizza);
    broccoli = (CheckBox) findViewById(R.id.broccoli);
    banana = (CheckBox) findViewById(R.id.banana);


    buttonNext = (FloatingActionButton) findViewById(R.id.btnNext);
    buttonNext.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            Intent intent = new Intent(Nutrition.this, foods.class);
            intent.putExtra("Apple", apple.isChecked());
            intent.putExtra("Egg", egg.isChecked());
            intent.putExtra("Pasta", pasta.isChecked());
            intent.putExtra("Pizza", pizza.isChecked());
            intent.putExtra("Broccoli", broccoli.isChecked());
            intent.putExtra("Banana", banana.isChecked());
            startActivity(intent);

        }

    });

}}'''

This is my second class :

'''

public class foods extends AppCompatActivity {

TextView txtFood;
EditText txtTotalIntake ;

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_foods);

        Intent intent = getIntent();

        Boolean apple = this.getIntent().getExtras().getBoolean("Apple", false);
        Boolean egg = this.getIntent().getExtras().getBoolean("Egg", false);
        Boolean pasta = this.getIntent().getExtras().getBoolean("Pasta", false);
        Boolean pizza = this.getIntent().getExtras().getBoolean("Pizza", false);
        Boolean broccoli = this.getIntent().getExtras().getBoolean("Broccoli", false);
        Boolean banana = this.getIntent().getExtras().getBoolean("Banana", false);



    }

}'''

CodePudding user response：

you can try like this-

public class foods extends AppCompatActivity {

TextView txtFood;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_foods);

    Intent intent = getIntent();

    Boolean apple = this.getIntent().getExtras().getBoolean("Apple", false);
    Boolean egg = this.getIntent().getExtras().getBoolean("Egg", false);
    Boolean pasta = this.getIntent().getExtras().getBoolean("Pasta", false);
    Boolean pizza = this.getIntent().getExtras().getBoolean("Pizza", false);
    Boolean broccoli = this.getIntent().getExtras().getBoolean("Broccoli", false);
    Boolean banana = this.getIntent().getExtras().getBoolean("Banana", false);


    String food="";

    if(apple){
     food ="Apple ";
   }

    if(egg){
     food ="Egg "
   } 

    if(pasta){
     food ="Pasta";
    }

        if (pizza) {
            food  = "Pizza ";
        }

        if (broccoli) {
            food  = "Broccoli ";
        }

        if (banana) {
            food  = "Banana ";
        }

       txtFood.setText(food);

}

}

CodePudding user response：

Here's a clear solution,

public class foods extends AppCompatActivity {

        TextView txtFood;

        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_foods);

            Intent intent = getIntent();

            Boolean apple = this.getIntent().getExtras().getBoolean("Apple", false);
            Boolean egg = this.getIntent().getExtras().getBoolean("Egg", false);
            Boolean pasta = this.getIntent().getExtras().getBoolean("Pasta", false);
            Boolean pizza = this.getIntent().getExtras().getBoolean("Pizza", false);
            Boolean broccoli = this.getIntent().getExtras().getBoolean("Broccoli", false);
            Boolean banana = this.getIntent().getExtras().getBoolean("Banana", false);
            
            //Newly added code
            String food = "";

            if (apple) {
                food  = "Apple ";
            }

            if (egg) {
                food  = "Egg ";
            }

            if (pasta) {
                food  = "Pasta ";
            }
            if (pizza) {
                food  = "Pizza ";
            }

            if (broccoli) {
                food  = "Broccoli ";
            }

            if (banana) {
                food  = "Banana ";
            }
        }
            txtFood.setText(food);

    }