51.5 Changing the Title and Scrim Color

As a final task, edit the MainActivity.java file and add some code to the onCreate() method to change the title text on the collapsing layout manager instance and to set a different scrim color (note that the scrim color may also be set within the layout resource file):

package com.ebookfrenzy.carddemo;

.

.

import com.google.android.material.appbar.CollapsingToolbarLayout;

import android.graphics.Color;

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.

.

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_card_demo);

        Toolbar toolbar = findViewById(R.id.toolbar);

        setSupportActionBar(toolbar);

 

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