android studio 2.2.3 start new activity button click

How to Start a New Activity when Clicking a Button in Android Studio 2.2.3

Starting a new activity is one of the fundamental features of an Android application, and it can be achieved by using various methods. In this article, we will explore how to start a new activity when clicking a button in Android Studio 2.2.3.

To begin with, let's create a new project in Android Studio. Go to File > New > Project... > Empty Activity > Next > Enter the name of your project > Finish. This will create a basic project structure for us.

Next, we need to set an onClickListener to the element that we want to use to navigate between pages (in this case, a button). To do this, we need to write some code in our MainActivity.java file.

In our activity_main.xml file, add the following code to define the layout of our first page:

```xml

android:layout_width='match_parent'

android:layout_height='match_parent'

android:orientation='vertical'>

android:id='@+id/button1'

android:layout_width='wrap_content'

android:layout_height='wrap_content'

android:text='Click me!' />

```

In our MainActivity.java file, we need to set an onClickListener to the button. Add the following code:

```java

public class MainActivity extends AppCompatActivity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button button = findViewById(R.id.button1);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

// Code to start a new activity goes here

}

});

}

```

Now, when the button is clicked, we need to write code to start a new activity. There are three different ways to do this:

1. Using an Intent:

```java

Intent intent = new Intent(this, ActivityMain2.class);

startActivity(intent);

```

2. Using an Intent with extras:

```java

Intent intent = new Intent(this, ActivityMain2.class);

intent.putExtra('key', 'value');

startActivity(intent);

```

3. Using a startActivityForResult method:

```java

startActivityForResult(new Intent(this, ActivityMain2.class), 1);

```

In this article, we have demonstrated how to start a new activity when clicking a button in Android Studio 2.2.3 using three different methods. This is just one example of how you can navigate between pages in an application, and there are many more ways to achieve this.

By following these steps, you should be able to successfully start a new activity when clicking a button in your Android application.

Android studio 2.2.3 start new activity button click