private void findViews() {
    toolbar = (Toolbar) findViewById(R.id.air_toolbar);

    inputTitle = (TextInputEditText) findViewById(R.id.air_inputTitle);
    inputDescription = (TextInputEditText) findViewById(R.id.air_inputDescription);
    textDeviceInfo = (TextView) findViewById(R.id.air_textDeviceInfo);
    buttonDeviceInfo = (ImageButton) findViewById(R.id.air_buttonDeviceInfo);
    layoutDeviceInfo = (ExpandableRelativeLayout) findViewById(R.id.air_layoutDeviceInfo);

    inputUsername = (TextInputEditText) findViewById(R.id.air_inputUsername);
    inputPassword = (TextInputEditText) findViewById(R.id.air_inputPassword);
    inputEmail = (TextInputEditText) findViewById(R.id.air_inputEmail);
    optionUseAccount = (RadioButton) findViewById(R.id.air_optionUseAccount);
    optionAnonymous = (RadioButton) findViewById(R.id.air_optionAnonymous);
    layoutLogin = (ExpandableRelativeLayout) findViewById(R.id.air_layoutLogin);
    layoutAnonymous = (ExpandableRelativeLayout) findViewById(R.id.air_layoutGuest);

    buttonSend = (FloatingActionButton) findViewById(R.id.air_buttonSend);
}
 

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

    getSupportActionBar().setTitle(ExpandableLayoutActivity.class.getSimpleName());

    mExpandButton = (Button) findViewById(R.id.expandButton);
    mMoveChildButton = (Button) findViewById(R.id.moveChildButton);
    mMoveChildButton2 = (Button) findViewById(R.id.moveChildButton2);
    mMoveTopButton = (Button) findViewById(R.id.moveTopButton);
    mSetCloseHeightButton = (Button) findViewById(R.id.setCloseHeightButton);
    mExpandLayout = (ExpandableRelativeLayout) findViewById(R.id.expandableLayout);
    mExpandButton.setOnClickListener(this);
    mMoveChildButton.setOnClickListener(this);
    mMoveChildButton2.setOnClickListener(this);
    mMoveTopButton.setOnClickListener(this);
    mSetCloseHeightButton.setOnClickListener(this);
}
 

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

    getSupportActionBar().setTitle(ExampleReadMoreActivity.class.getSimpleName());

    mExpandButton = (Button) findViewById(R.id.expandButton);
    mExpandLayout = (ExpandableRelativeLayout) findViewById(R.id.expandableLayout);
    mOverlayText = (TextView) findViewById(R.id.overlayText);
    mExpandButton.setOnClickListener(this);

    mGlobalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            mExpandLayout.move(mOverlayText.getHeight(), 0, null);

            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                mOverlayText.getViewTreeObserver().removeGlobalOnLayoutListener(mGlobalLayoutListener);
            } else {
                mOverlayText.getViewTreeObserver().removeOnGlobalLayoutListener(mGlobalLayoutListener);
            }
        }
    };
    mOverlayText.getViewTreeObserver().addOnGlobalLayoutListener(mGlobalLayoutListener);
}
 

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

    getSupportActionBar().setTitle(ExampleSearchActivity.class.getSimpleName());

    mExpandButton = (Button) findViewById(R.id.expandButton);
    mExpandLayout = (ExpandableRelativeLayout) findViewById(R.id.expandableLayout);
    mExpandButton.setOnClickListener(this);

    final RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
    recyclerView.setHasFixedSize(true);
    recyclerView.addItemDecoration(new DividerItemDecoration(this));
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    final ArrayList data = new ArrayList();
    for(int i = 0; i < 15; i++) {
        data.add("Result");
    }
    recyclerView.setAdapter(new ExampleSearchRecyclerAdapter(data));
}