How can I add a few seconds delay between activities in my app?

Question

I've been trying to add a few second delay to my activity swap in my basic app but whenever I try I get errors. I'm basing my attempts off of this previous thread (How to put some delay in calling an activity from another activity?) but have been unsuccessful multiple times. Can anyone help?

Here's my main activity code:

package winfield.joe.wind.v1;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.View;
import android.view.animation.BounceInterpolator;
import android.view.animation.ScaleAnimation;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Toast;

public class MainActivity extends Activity {

    // public var
    private EditText text;

    // default function
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //localise this
        Toast.makeText(this, "onCreate!!", Toast.LENGTH_LONG).show();
        setContentView(R.layout.activity_main);
        // (EditText) = typecast
        text = (EditText) findViewById(R.id.userInput);
    }

        //Will be executed by clicking on the calculate button because we assigned "calc" to the "onClick" Property
        public void calc(View view) {

                    bounce(view, 0.95f);           

            RadioButton toKilometers = (RadioButton) findViewById(R.id.toKilometers);
            RadioButton toKnots = (RadioButton) findViewById(R.id.toKnots);

            if (text.getText().length() == 0) {
                // if the text field is empty show the message "enter a valid number" via toast message
                //ATTENTION:localise this
                Toast.makeText(this, "enter a valid number", Toast.LENGTH_LONG).show();
            } else {

                //int userInput = R.string.userInput;
                Intent i = new Intent(MainActivity.this, SecondActivity.class);
                //putExtra("userInput", userInput); 
                startActivity(i);

                // parse input Value from Text Field
                double inputValue = Double.parseDouble(text.getText().toString());
                // convert to...
                if (toKilometers.isChecked()) {
                    text.setText(String.valueOf(convertToKM(inputValue)));
                    // uncheck "to km" Button
                    toKilometers.setChecked(true);
                    // check "to knots" Button
                    toKnots.setChecked(false);
                } else { /* if toKnots button isChecked() */
                    text.setText(String.valueOf(convertToKnots(inputValue)));
                    // uncheck "to knots" Button
                    toKnots.setChecked(true);
                    // check "to km" Button
                    toKilometers.setChecked(false);
                }

            }

        }

    //bounce animation on button on-click
    public void bounce(View view, float amount) {
    ScaleAnimation anim = new ScaleAnimation(amount, 1f, amount, 1f);
    anim.setDuration(750);
    anim.setInterpolator(new BounceInterpolator());
    view.startAnimation(anim);
    }

    private double convertToKM(double inputValue) {
        // convert knots to km
        return (inputValue * 1.8);
    }

    private double convertToKnots(double inputValue) {
        // convert km to knots
        return (inputValue * 0.539956803);
    }

}

Answer 1

Try this code

  new Handler().postDelayed(new Runnable() { 
        @Override public void run() { 
            //other code here Intent i = new Intent(MainActivity.this,SecondActivity.class); 
            startActivity(i); //other code here } }, 5000);

Answer 2

You could use an Handler:

    new Handler().postDelayed(new Runnable() {

        @Override
        public void run() {

            if(...) {
                // start here the other Activity
            }

            else {

                // do something else

            }

        }
    }, YOUR_TIME_OUT);