Working with Coordinator layout

The CoordinatorLayout is a new layout, introduced with the Android Design Support Library. The CoordinatorLayout is a super-powered FrameLayout  If you have used a FrameLayout before, you should be very comfortable using CoordinatorLayout. If you haven’t used a FrameLayout, do not worry, it is pretty straightforward.


==> activity_coordinatorlayout.xml

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/main_content"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/MyAppbar"
        android:layout_width="match_parent"
        android:layout_height="250dp"
        android:fitsSystemWindows="true">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapse_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@color/material_deep_teal_500"
            android:fitsSystemWindows="true"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:background="@drawable/profilepic"
                android:scaleType="centerCrop"
                app:layout_collapseMode="parallax" />

            <android.support.v7.widget.Toolbar
                android:id="@+id/MyToolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="pin" />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.NestedScrollView
        android:layout_width="match_parent"
        android:visibility="gone"
        android:layout_height="match_parent"
        android:layout_gravity="fill_vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:paddingTop="24dp">

            <android.support.v7.widget.CardView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="This text is part of first Cardview\n\n"
                        android:textColor="@color/error_color"
                        android:textSize="20sp" />

                </LinearLayout>

            </android.support.v7.widget.CardView>

            <android.support.v7.widget.CardView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:layout_marginTop="10dp">

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical">

                    <TextView
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:text="This text is part of second Cardview\n\n"
                        android:textColor="@color/abc_search_url_text"
                        android:textSize="20sp" />

                </LinearLayout>

            </android.support.v7.widget.CardView>

        </LinearLayout>

    </android.support.v4.widget.NestedScrollView>


</android.support.design.widget.CoordinatorLayout>


==> CoordinatorLayoutExample.java

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.graphics.Palette;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import butterknife.BindView;
import butterknife.ButterKnife;


public class CoordinatorLayoutExample extends AppCompatActivity {


    @BindView(R.id.MyToolbar)
    Toolbar MyToolbar;

    @BindView(R.id.collapse_toolbar)
    CollapsingToolbarLayout collapse_toolbar;

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_coordinatorlayout);
        ButterKnife.bind(this);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            getWindow().setStatusBarColor(ContextCompat.getColor(this, R.color.colorPrimaryDark));
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            Window w = getWindow();
            w.setFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS, WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
        } else {
            getWindow().getDecorView().setSystemUiVisibility(
                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
        }
//        setSupportActionBar(MyToolbar);
//        getSupportActionBar().setTitle("All in One");
//        getSupportActionBar().setDisplayHomeAsUpEnabled(true);

        setSupportActionBar(MyToolbar);
        ActionBar actionBar = getSupportActionBar();
        actionBar.setTitle("All in One");
        actionBar.setDisplayHomeAsUpEnabled(true);

        dynamicToolbarColor();
        toolbarTextAppernce();
    }

    private void dynamicToolbarColor() {

        Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
                R.drawable.profilepic);
        Palette.from(bitmap).generate(new Palette.PaletteAsyncListener() {

            @Override
            public void onGenerated(Palette palette) {
                collapse_toolbar.setContentScrimColor(palette.getMutedColor(getResources().getColor(R.color.colorPrimary)));
                collapse_toolbar.setStatusBarScrimColor(palette.getMutedColor(getResources().getColor(R.color.colorPrimaryDark)));
            }
        });
    }

    private void toolbarTextAppernce() {
        collapse_toolbar.setCollapsedTitleTextAppearance(R.style.collapsedappbar);
        collapse_toolbar.setExpandedTitleTextAppearance(R.style.expandedappbar);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                onBackPressed();
                break;
        }
        return true;
    }



}