How to start new activity on button click

🚀 How to Start a New Activity on Button Click in Android 📲💥

So you've built an awesome Android application, and now you want to give your users the power to navigate between different screens. Maybe you want to display a new activity when a button is clicked, and perhaps you want to pass some data between these activities. Fear not, brave Android developer! I'm here to guide you through this process, step by step. Let's dive in! 💪

📋 Step 1: Set up your button and activity 🎮🏠

First things first, you need to set up your button and activity. Make sure you have a button element in your XML layout file, like so:

<Button
    android:id="@+id/myButton"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Click me"
    />

Next, create a new activity by following these simple steps:

1. Right-click on your project folder.

2. Go to New -> Activity -> Empty Activity.

3. Give your activity a name and click on the "Finish" button.

💻 Step 2: Handle the button click event 👆

Now that your button and activity are all set up, let's write some code to handle the button click event. Open the Java file corresponding to your initial activity and find the onCreate method. Inside this method, add the following code:

Button myButton = findViewById(R.id.myButton);

myButton.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        // Code to start the new activity goes here
    }
});

📦 Step 3: Start the new activity 🏃‍♂️🆕

Congratulations! You're almost there. Now it's time to actually start the new activity when the button is clicked. Replace the comment in the onClick method with the following code:

Intent intent = new Intent(CurrentActivity.this, NewActivity.class);
startActivity(intent);

Make sure to replace CurrentActivity with the name of your initial activity and NewActivity with the name of your newly created activity.

📝 Step 4: Passing data between activities 🌟💬

Passing data between activities is a common requirement in Android development. To pass data from your initial activity to the new activity, you can use the putExtra method of the Intent class. Here's an example:

Intent intent = new Intent(CurrentActivity.this, NewActivity.class);
intent.putExtra("key", "value");
startActivity(intent);

To retrieve the data in your new activity, you can use the getIntent method and then call getStringExtra or other appropriate methods based on the data type. Here's an example:

Intent intent = getIntent();
String data = intent.getStringExtra("key");

🥳 Time to Celebrate! 🎉

You did it! 🎉Now you know how to start a new activity on button click and even pass data between them. Go ahead and give it a try in your own Android application. Your users will love the seamless navigation and personalized experiences you're about to create! 👏

If you have any questions, or if you want to share your awesome Android project, drop a comment below. Happy coding! 🚀🔥