How to show/hide grouped views in Android?

Question

I want to create an activity such as mentioned in photo... as soon as I press the maximize button I want it to become full screen for the activity and part 1 become minimize, an

Answer 1

Part one and two should be in their own layout. After, play with the visilibity property of each layout. Specifically to hide any view without it continues to occupy its space, use the value gone for the visibility property.

Ok, here I go. Below you have a complete example of how to hide/show grouped views.

main.xml

Activity

public class MyActivity extends Activity implements OnClickListener {

    private boolean viewGroupIsVisible = true;  

    private View mViewGroup;
    private Button mButton;

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

        mViewGroup = findViewById(R.id.viewsContainer);

        mButton = findViewById(R.id.button);
        mButton.setOnClickListener(this);
    }


    @Override
    public void onClick(View button) {

    if (viewGroupIsVisible) {
        mViewGroup.setVisibility(View.GONE);
        mButton.setText("Show");
    } else {
        mViewGroup.setVisibility(View.VISIBLE);
        mButton.setText("Hide");
    }

    viewGroupIsVisible = !viewGroupIsVisible;
}

I hope this helps ;)