Develop Reference

setTitleTextColor does not change the color of the text

I am new to android programming and am trying to add the color white to the text of toolbar which I have added programmatically using setTitleTextColor() method, however the color remains black. How to do it?
Here is my code
package com.example.android.tourguide;
import android.content.Intent;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
public class DetailClassForListItemOption extends AppCompatActivity {
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.detail_layout);
final Intent intent = getIntent();
TextView informationTextView = findViewById(R.id.information_about_the_place);
informationTextView.setText(intent.getStringExtra("informationAboutPlace"));
TextView timingsTextView = findViewById(R.id.timings_of_the_venue);
timingsTextView.setText(intent.getStringExtra("timingsOfThePlace"));
android.support.v7.widget.Toolbar nameOfTheToolbar = findViewById(R.id.toolbar_for_detail_layout);
nameOfTheToolbar.setTitle(intent.getStringExtra("nameForToolbar"));
nameOfTheToolbar.setTitleTextColor(Color.WHITE);
setSupportActionBar(nameOfTheToolbar);
ImageView imageInsideThePlace = findViewById(R.id.image_of_the_inside_of_a_place);
imageInsideThePlace.setImageResource(intent.getIntExtra("imageOfTheInsideOfThePlace", 0));
FloatingActionButton locationOfVenueFab = findViewById(R.id.floating_action_button);
locationOfVenueFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Uri gmmIntentUri = Uri.parse(intent.getStringExtra("coordinatesOfThePlace"));
Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
mapIntent.setPackage("com.google.android.apps.maps");
mapIntent.setClassName("com.google.android.apps.maps", "com.google.android.maps.MapsActivity");
if (mapIntent.resolveActivity(getPackageManager()) != null) {
startActivity(mapIntent);
}
}
});
}
}
EDIT: And here the xml of the activity in that is used in the above
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.v4.widget.NestedScrollView
android:id="#+id/nested_scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.FloatingActionButton
android:id="#+id/floating_action_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:clickable="true"
android:src="#drawable/baseline_location_on_white_24" />
<android.support.v7.widget.CardView
android:id="#+id/general_information_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:text="#string/bengaluru_general_information"
android:textColor="#android:color/black"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="#+id/information_about_the_place"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:textStyle="italic" />
</LinearLayout>
</android.support.v7.widget.CardView>
</RelativeLayout>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:text="#string/timings"
android:textColor="#android:color/black"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="#+id/timings_of_the_venue"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:textSize="18sp"
android:textStyle="italic|bold" />
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="256dp">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="#color/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/image_of_the_inside_of_a_place"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax"
tools:ignore="ContentDescription" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_for_detail_layout"
android:layout_width="match_parent"
android:layout_height="52dp"
android:elevation="6dp"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
</android.support.v4.widget.DrawerLayout>
and here is the screenshot of the app

You have a Collapsing Toolbar, so you must set the color for this:
CollapsingToolbarLayout ct;
ct = findViewById(R.id.collapsing_toolbar_layout);
ct.setTitle(title);
ct.setCollapsedTitleTextColor(Color.WHITE);

Nested Scroll View cannot inflate class

This is my xml code,When i run my app the error appears telling me that the NestedScrollView class has an error inflating it
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="#+id/codinator_layout"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar_layout"
android:layout_width="match_parent"
android:layout_height="250dp"
android:theme="#style/AppTheme.AppBarOverlay"
app:layout_anchor="#+id/appbar_layout"
app:layout_anchorGravity="left|top">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/imgdetalle"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/carapp_logo"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="56dp"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.AppBarOverlay"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffe5e5e5"
android:nestedScrollingEnabled="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.v7.widget.CardView
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardUseCompatPadding="true"
android:layout_marginTop="15dp"
app:cardCornerRadius="2dp">
<LinearLayout
android:padding="8dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Referencia"
android:textSize="20dp"
/>
<TextView
android:layout_marginLeft="10dp"
android:id="#+id/detalle_referencia"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="asasa3343"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="Precio"/>
<TextView
android:id="#+id/detalle_precio"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:textStyle="bold"
android:background="#af370b"
android:padding="5dp"
android:textColor="#android:color/white"
android:text="$500000000"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Modelo"
android:textSize="20dp"
/>
<TextView
android:layout_marginLeft="10dp"
android:id="#+id/detalle_modelo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="2020"/>
</LinearLayout>
<LinearLayout
android:id="#+id/lymotor"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Motor"
android:textSize="20dp"
/>
<TextView
android:layout_marginLeft="10dp"
android:id="#+id/detalle_motor"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="120000 km"/>
</LinearLayout>
<LinearLayout
android:id="#+id/lykilometraje"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:visibility="gone"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Kilometraje"
android:textSize="20dp"
/>
<TextView
android:layout_marginLeft="10dp"
android:id="#+id/detalle_kilometraje"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="120000 km"/>
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
<TextView
android:id="#+id/txt_descripcion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Descripcion"
android:layout_marginTop="130dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"/>
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
app:fabSize="mini"
android:src="#drawable/ic_favorite_border"
android:layout_margin="16dp" />
</android.support.design.widget.CoordinatorLayout>
This is my class
package com.example.mac.mycarapp.UI;
import android.os.Bundle;
import android.support.design.widget.AppBarLayout;
import android.support.design.widget.CollapsingToolbarLayout;
import android.support.design.widget.CoordinatorLayout;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Display;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.example.mac.mycarapp.Modelos.Automoviles;
import com.example.mac.mycarapp.R;
import butterknife.BindView;
import butterknife.ButterKnife;
public class CarroDetalleActivity extends AppCompatActivity {
#BindView(R.id.detalle_modelo)
TextView detalleModelo;
#BindView(R.id.detalle_kilometraje)
TextView detalleKilometraje;
#BindView(R.id.detalle_motor)
TextView detalleMotor;
#BindView(R.id.lykilometraje)
LinearLayout lykilometraje;
#BindView(R.id.detalle_precio)
TextView detallePrecio;
#BindView(R.id.txt_descripcion)
TextView detalle_descripcion_vehiculo;
private Automoviles automoviles;
#BindView(R.id.imgdetalle)
ImageView imgdetalle;
#BindView(R.id.detalle_referencia)
TextView txt_referencia;
#BindView(R.id.appbar_layout)
AppBarLayout appBarLayout;
#BindView(R.id.codinator_layout)
CoordinatorLayout coordinatorLayout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_carro_detalle);
ButterKnife.bind(this);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
automoviles = getIntent().getExtras().getParcelable("ListaVehiculos");
toolbar.setTitle(automoviles.getMarca());
detalleModelo.setText(automoviles.getYear() + "");
if (!automoviles.isNuevo()) {
lykilometraje.setVisibility(View.VISIBLE);
}
detalleKilometraje.setText(automoviles.getKilometraje() + "");
detalleMotor.setText(automoviles.getMotor() + "");
txt_referencia.setText(automoviles.getReferencia());
detalleMotor.setText(automoviles.getMotor()+"");
detallePrecio.setText("$"+automoviles.getPrecio());
detalle_descripcion_vehiculo.setText(R.string.descripcion_prueba);
Glide.with(this).load(automoviles.getImagen()).into(imgdetalle);
final Display dwigth = getWindowManager().getDefaultDisplay();
appBarLayout.post(new Runnable() {
#Override
public void run() {
int heigthPx = dwigth.getWidth() * 1 / 3;
setAppbarOffset(heigthPx);
}
});
}
private void setAppbarOffset(int heigthPx) {
CoordinatorLayout.LayoutParams params = (CoordinatorLayout.LayoutParams) appBarLayout.getLayoutParams();
AppBarLayout.Behavior behavior = (AppBarLayout.Behavior) params.getBehavior();
behavior.onNestedPreScroll(coordinatorLayout, appBarLayout, null, 0, heigthPx, new int[]{0, 0});
}
}
i checked this post
Error inflating class - NestedScrollView - class not found
But the suggestions there i followed them.

NestedScrollView should contain only one child. But you have added 2
CardView
TextView
Remove the following TextView and it should work
<TextView
android:id="#+id/txt_descripcion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Descripcion"
android:layout_marginTop="130dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"/>

FloatingActionButton between layouts with CollapsingToolbarLayout

I would like to add a floating action button between two layouts with different elevation to get something like this:
This is my layout, but probably it's overcomplicated:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:theme="#style/AppTheme.NoActionBar">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="250dp"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="#color/color_primary"
app:scrimAnimationDuration="300"
app:titleEnabled="false"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed">
<ImageView
android:id="#+id/trailer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:fitsSystemWindows="true"
tools:ignore="ContentDescription" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat"
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:layout_height="match_parent"
android:clipToPadding="false"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<LinearLayout
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="150dp"
android:background="#color/color_primary"
android:elevation="16.0dp">
<com.est.streamcorn.views.AspectRatioImageView
android:id="#+id/image"
android:layout_width="150dp"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:scaleType="centerInside"
android:theme="#style/MoviePosterImage"
tools:ignore="ContentDescription"
app:elevation="6dp"/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/play"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:elevation="6dp"
app:srcCompat="#drawable/player_action_play"
app:layout_constraintTop_toBottomOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"/>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="parent"
app:layout_constraintStart_toEndOf="#id/image"/>
<TextView
android:id="#+id/link1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toBottomOf="#id/title"
app:layout_constraintStart_toEndOf="#id/image"/>
</android.support.constraint.ConstraintLayout>
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</android.support.constraint.ConstraintLayout>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
All the examples I found anchor the floating button to the coordinator layout, but I would like to have it fixed like the other elements inside the NestedScrollView. Mybe there is a better way to accomplish the different color and elevation without needing two different layouts?

At the end I was able to achieve this:
This is the layout:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:background="#color/colorPrimaryReverse"
android:theme="#style/AppTheme.NoActionBar">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="220dp"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar">
<com.est.streamcorn.views.CustomCollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:scrimAnimationDuration="250"
app:titleEnabled="false"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed">
<ImageView
android:id="#+id/trailer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:scaleType="centerCrop"
tools:ignore="ContentDescription"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat"
app:layout_collapseMode="pin">
<TextView
android:id="#+id/toolbar_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:ellipsize="end"
android:layout_marginEnd="5dp"
style="#style/TextAppearance.AppCompat.Widget.ActionBar.Title" />
</android.support.v7.widget.Toolbar>
</com.est.streamcorn.views.CustomCollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:behavior_overlapTop="40dp"
app:layout_behavior="#string/appbar_scrolling_view_behavior" >
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.FloatingActionButton
android:id="#+id/play"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:clickable="true"
android:focusable="true"
android:layout_margin="20dp"
app:elevation="6dp"
app:srcCompat="#drawable/player_action_play"
app:backgroundTint="#color/colorAccent"
app:layout_anchor="#id/header"
app:layout_anchorGravity="bottom|right|end"/>
<android.support.v7.widget.CardView
android:id="#+id/image_container"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="15dp"
app:cardElevation="6dp"
app:cardCornerRadius="6dp"
app:layout_anchor="#id/header"
app:layout_anchorGravity="top|left|start">
<com.est.streamcorn.views.AspectRatioImageView
android:id="#+id/image"
android:layout_width="110dp"
android:layout_height="wrap_content"
android:scaleType="centerCrop"
tools:ignore="ContentDescription"
app:aspectRatio="#dimen/movie_poster_aspect_ratio" />
</android.support.v7.widget.CardView>
<FrameLayout
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="170dp"
android:background="#android:color/transparent"
android:elevation="4.0dp">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="130dp"
android:background="#color/colorPrimaryReverse"
android:orientation="vertical"
android:layout_gravity="bottom"
android:layout_marginBottom="0dp"
android:paddingEnd="0dp"
android:paddingStart="135dp">
<TextView
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:ellipsize="end"
android:maxLines="2"
android:singleLine="false"
android:textAppearance="#style/MovieDetail.Title"
app:layout_constraintBottom_toTopOf="#id/text1"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#id/download"
app:layout_constraintHorizontal_weight="0"
tools:text="The Martian - A Test Movie As Placeholder" />
<TextView
android:id="#+id/text1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:singleLine="true"
android:textAppearance="#style/MovieDetail.Text1"
app:layout_constraintBottom_toTopOf="#id/text2"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#id/download"
android:layout_marginBottom="5dp"
tools:text="2015" />
<TextView
android:id="#+id/text2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:ellipsize="end"
android:singleLine="true"
android:textAppearance="#style/MovieDetail.Text2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toStartOf="#id/download"
android:layout_marginBottom="15dp"
tools:text="141 minutes" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/download"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="20dp"
android:background="#android:color/transparent"
app:layout_constraintBottom_toBottomOf="#id/title"
app:layout_constraintTop_toTopOf="#id/title"
app:layout_constraintEnd_toEndOf="parent"
app:backgroundTint="#android:color/transparent"
app:borderWidth="0dp"
app:elevation="0dp"
app:srcCompat="#drawable/ic_download"
tools:ignore="ContentDescription" />
</android.support.constraint.ConstraintLayout>
</FrameLayout>
<LinearLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="150dp"
android:background="#color/backgroundColorReverse"
android:orientation="vertical"
android:paddingEnd="15dp"
android:paddingStart="15dp"
android:paddingTop="60dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:textSize="16sp"
android:textAllCaps="true"
android:textColor="#color/textColorPrimaryReverse"
android:text="#string/description" />
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
The custom view:
public class CustomCollapsingToolbarLayout extends CollapsingToolbarLayout {
private Boolean previousShowing = true;
public static interface Listener {
public void onContentScrimAnimationStarted(boolean showing);
}
private Listener mListener;
public CustomCollapsingToolbarLayout(Context context) {
super(context);
}
public CustomCollapsingToolbarLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public CustomCollapsingToolbarLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
#Override
public void setScrimsShown(boolean shown, boolean animate) {
super.setScrimsShown(shown, animate);
if (animate && mListener != null && shown != previousShowing) {
mListener.onContentScrimAnimationStarted(shown);
previousShowing = shown;
}
}
public void setListener(Listener listener) {
mListener = listener;
}
}
And in the activity OnCreate:
setSupportActionBar(toolbar);
getSupportActionBar().setTitle("");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
TypedValue tv = new TypedValue();
getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true);
final int actionBarHeight = getResources().getDimensionPixelSize(tv.resourceId);
collapsingToolbarLayout.setScrimVisibleHeightTrigger(actionBarHeight + 100);
collapsingToolbarLayout.setListener(showing -> {
if(showing){
toolbarTitle.setVisibility(View.VISIBLE);
toolbarTitle.animate().alpha(1).setDuration(250);
}
else{
toolbarTitle.setVisibility(View.INVISIBLE);
toolbarTitle.animate().alpha(0).setDuration(250);
}
});
The custom view is needed only if you want to make the title disappear when expanding the CollapsingToolbarLayout. For the layout maybe it's not a good solution but it's smooth. Better ideas are welcome.

RecyclerView not showing up properly (scrunched up)

I've been trying to implement multiple RecyclerView within a layout that is part of a collapsing tab. However, my RecyclerView hasn't been working and I don't know what I did wrong in my code. Please help me!
Here is the Github Link: github.com/arxbombus/RecipeDetails
Here is the desired view: image
Here is what I'm getting for some reason: image
As you can see, everything is all scrunched up. :(
Below I've included the layouts for my MainActivity and also the Java files for my Adapters.
Here is my activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<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/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="400dp"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingToolbarLayout"
android:layout_width="match_parent"
android:layout_height="400dp"
app:title="Some Randome Recipe"
app:titleEnabled="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/ivParallax"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="#drawable/food"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/nestedScrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<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:id="#+id/txtAbout"
android:text="About this recipe"
android:textStyle="bold"
android:textSize="13sp"
android:padding="15dp"
android:layout_marginBottom="-25dp"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/txtRecipeDescription"
android:text="#string/recipe_description"
android:padding="15dp"
android:layout_marginBottom="-5dp"
android:textSize="12sp"/>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/colorDivider"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/txtInfo"
android:text="Info"
android:textStyle="bold"
android:textSize="13sp"
android:padding="15dp"
android:layout_marginBottom="-20dp"
android:layout_marginTop="-5dp"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/rvRecipeInfo"
android:layout_width="match_parent"
android:layout_height="75dp"
android:layout_gravity="center_vertical"
android:orientation="horizontal"
android:padding="15dp"></android.support.v7.widget.RecyclerView>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/colorDivider"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/txtIngredient"
android:text="Ingredients"
android:textStyle="bold"
android:textSize="13sp"
android:padding="15dp"
android:layout_marginBottom="-20dp"
android:layout_marginTop="-5dp"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/rvRecipeIngredient"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="15dp"></android.support.v7.widget.RecyclerView>
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/colorDivider"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
/>
walking
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/txtProcedures"
android:text="Procedures"
android:textStyle="bold"
android:textSize="13sp"
android:padding="15dp"
android:layout_marginBottom="-20dp"
android:layout_marginTop="-5dp"/>
<android.support.v7.widget.RecyclerView
android:id="#+id/rvRecipeProcedure"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="15dp"></android.support.v7.widget.RecyclerView>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
And my CardView
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/recipeInfoCards"
android:layout_width="81dp"
android:layout_height="75dp"
app:cardCornerRadius="6dp"
android:elevation="15dp"
android:orientation="horizontal"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorRecipeInfoCardBG"
android:padding="10dp"
android:orientation="vertical">
<TextView
android:id="#+id/txtRecipeInfoCardTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cooking Time:"
android:textSize="11sp"
android:textColor="#android:color/black"
android:layout_gravity="center_horizontal"
android:gravity="center"
android:layout_marginTop="5dp"
/>
<TextView
android:id="#+id/txtRecipeInfoCardDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="20 Minutes"
android:textSize="11sp"
android:textColor="#color/colorTextSecondary"
android:layout_gravity="center_horizontal"
android:gravity="center"/>
</LinearLayout>
</android.support.v7.widget.CardView>
And here are my MainActivity and Adapters respectiviely
public class MainActivity extends AppCompatActivity {
ArrayList < Recipe > recipeData;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
recipeData = new ArrayList < Recipe > ();
createData();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
if (getSupportActionBar() != null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
RecyclerView recipeInfoCardRV = (RecyclerView) findViewById(R.id.rvRecipeInfo);
recipeInfoCardRV.setHasFixedSize(true);
recipeInfoCardRV.setNestedScrollingEnabled(false);
RecipeInfoAdapter recipeInfoAdapter = new RecipeInfoAdapter(this, recipeData);
recipeInfoCardRV.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false));
recipeInfoCardRV.setAdapter(recipeInfoAdapter);
RecyclerView recipeIngredientRV = (RecyclerView) findViewById(R.id.rvRecipeIngredient);
recipeIngredientRV.setHasFixedSize(true);
recipeIngredientRV.setNestedScrollingEnabled(false);
recipeIngredientRV.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
RecipeIngredientAdapter recipeIngredientAdapter = new RecipeIngredientAdapter(this, recipeData);
recipeIngredientRV.setAdapter(recipeIngredientAdapter);
}
public void createData() {
ArrayList < RecipeInfoCard > recipeInfoCards = new ArrayList < RecipeInfoCard > ();
recipeInfoCards.add(new RecipeInfoCard("Cooking Time", "20 Minutes"));
recipeInfoCards.add(new RecipeInfoCard("Calories", "3501"));
recipeInfoCards.add(new RecipeInfoCard("Procedures", "Three"));
ArrayList < RecipeIngredient > recipeIngredients = new ArrayList < RecipeIngredient > ();
for (int i = 1; i <= 10; i++) {
recipeIngredients.add(new RecipeIngredient("Ingredient " + i, String.valueOf(i), "grams"));
}
Recipe dm = new Recipe(recipeInfoCards, recipeIngredients);
recipeData.add(dm);
}
}
My adapter for my CardView
public class RecipeInfoAdapter extends RecyclerView.Adapter < RecipeInfoAdapter.RecipeInfoCardItemRowHolder > {
private Context mContext;
private ArrayList < Recipe > recipeData;
public RecipeInfoAdapter(Context mContext, ArrayList < Recipe > recipeData) {
this.mContext = mContext;
this.recipeData = recipeData;
}
#Override
public RecipeInfoCardItemRowHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recipe_info_card_view, null);
return new RecipeInfoCardItemRowHolder(v);
}
#Override
public void onBindViewHolder(RecipeInfoCardItemRowHolder recipeInfoCardItemRowHolder, int position) {
Recipe recipe = recipeData.get(position);
recipeInfoCardItemRowHolder.infoCardTitle.setText(recipe.getRecipeInfoCards().get(position).getRecipeInfoCardTitle());
recipeInfoCardItemRowHolder.infoCardDescription.setText(recipe.getRecipeInfoCards().get(position).getRecipeInfoCardDescription());
}
#Override
public int getItemCount() {
return (null != recipeData ? recipeData.size() : 0);
}
public class RecipeInfoCardItemRowHolder extends RecyclerView.ViewHolder {
protected TextView infoCardTitle;
protected TextView infoCardDescription;
public RecipeInfoCardItemRowHolder(View view) {
super(view);
this.infoCardTitle = (TextView) view.findViewById(R.id.txtRecipeInfoCardTitle);
this.infoCardDescription = (TextView) view.findViewById(R.id.txtRecipeInfoCardDescription);
}
}
}
I didn't put all my code here because I think the question is long enough but I would really appreciate if someone helped me. Thank you!

Try to change your rvRecipeInfo RecyclerView height.. becasue your hardicoading it to 75 dp which is wrong.
<android.support.v7.widget.RecyclerView
android:id="#+id/rvRecipeInfo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:orientation="horizontal"
android:padding="15dp"></android.support.v7.widget.RecyclerView>
similer to cardview as well
< ?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/recipeInfoCards"
android:layout_width="100dp"
android:layout_height="75dp"
app:cardCornerRadius="6dp"
android:elevation="15dp"
android:orientation="horizontal"
>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/colorRecipeInfoCardBG"
android:padding="10dp"
android:orientation="vertical">
<TextView
android:id="#+id/txtRecipeInfoCardTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cooking Time:"
android:textSize="11sp"
android:textColor="#android:color/black"
android:layout_gravity="center_horizontal"
android:gravity="center"
android:layout_marginTop="5dp"
/>
<TextView
android:id="#+id/txtRecipeInfoCardDescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="20 Minutes"
android:textSize="11sp"
android:textColor="#color/colorTextSecondary"
android:layout_gravity="center_horizontal"
android:gravity="center"/>
</LinearLayout>
</android.support.v7.widget.CardView>

RecyclerView inside NestedScrollView scrolling issue

Iv seen many threads like that, but non of them helped me. When i use RecyclerView inside NestedScrollView im having scrolling issues - stuck. I know its because that is scroll inside scroll,
rv.setNestedScrollingEnabled(false); is not working for me.
on few thread there was information that NestedScrollView dont have to be used - but then toolbar is not collapsing.
My XML:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleGravity="bottom"
app:expandedTitleMarginStart="#dimen/activity_vertical_margin"
app:expandedTitleTextAppearance="#style/CollapsedAppBarTopic"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="parallax">
<FrameLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/activity_vertical_margin">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/imageView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="#dimen/activity_vertical_margin"
android:alpha="0.5"
app:layout_collapseMode="parallax"
app:srcCompat="#drawable/logo_white" />
<TextView
android:id="#+id/yourVotes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginEnd="15dp"
android:layout_marginRight="15dp"
android:layout_toLeftOf="#+id/votesSum"
android:layout_toStartOf="#+id/votesSum"
android:text="#string/YourVotes"
android:textAlignment="viewStart" />
<TextView
android:id="#+id/votesSum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginRight="#dimen/activity_horizontal_margin"
android:text="1" />
</RelativeLayout>
</FrameLayout>
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbarDetails"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TableLayout
android:id="#+id/tableLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorBackground">
<TableRow>
<TextView
android:layout_weight="1"
android:elevation="1dp"
android:text="#string/VotesSum"
android:textAlignment="center" />
<TextView
android:layout_weight="1"
android:elevation="0dp"
android:text="#string/TodayVotes"
android:textAlignment="center" />
<TextView
android:layout_weight="1"
android:text="#string/TodayAdded"
android:textAlignment="center" />
</TableRow>
<TableRow>
<TextView
android:layout_weight="1"
android:text="1"
android:textAlignment="center" />
<TextView
android:id="#+id/textView3"
android:layout_weight="1"
android:text="2"
android:textAlignment="center" />
<TextView
android:layout_weight="1"
android:text="3"
android:textAlignment="center" />
</TableRow>
</TableLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/tracks_recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="60dp"
android:background="#color/colorBackground" />
<ProgressBar
android:id="#+id/progressBarDetails"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|center"
android:background="#android:color/transparent" />
</LinearLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#color/colorPrimary"
app:itemBackground="#color/colorPrimary"
app:itemIconTint="#drawable/bottom_nav_colors"
app:itemTextColor="#drawable/bottom_nav_colors"
app:menu="#menu/navigation" />
</android.support.design.widget.CoordinatorLayout>
So, please help me to make that work
public class PlaylistDetailActivityWithoutFragmet extends AppCompatActivity {
private TextView votesLeft;
private RecyclerView lvTracks;
private SinglePlaylistFragment_.OnFragmentInteractionListener mListener;
SinglTracksAdapter recyclerViewAdapter;
final ArrayList<PlaylistTracks> playlistsTracks = new ArrayList<PlaylistTracks>();
final ArrayList<PlaylistTracks> playlistsTracks2 = new ArrayList<PlaylistTracks>();
int lastId = 0;
private boolean loading = true;
ProgressBar progressBar;
Toolbar toolbarDetails;
CollapsingToolbarLayout collapsingToolbarLayout;
int firstVisibleItem, visibleItemCount, totalItemCount;
private int visibleThreshold = 2;
final LinearLayoutManager llm = new LinearLayoutManager(this);
int height;
NestedScrollView nestedScrollView;
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener() {
#Override
public boolean onNavigationItemSelected(#NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.navigation_home:
// mTextMessage.setText(R.string.Playlist);
return true;
case R.id.navigation_dashboard:
// mTextMessage.setText(R.string.Statistics);
return true;
case R.id.navigation_notifications:
// mTextMessage.setText(R.string.Users);
return true;
}
return false;
}
};
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test_coordinator_layout);
toolbarDetails = (Toolbar) findViewById(R.id.toolbarDetails);
collapsingToolbarLayout = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
setSupportActionBar(toolbarDetails);
collapsingToolbarLayout.setTitle(playlistName);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
toolbarDetails.setNavigationIcon(getResources().getDrawable(R.drawable.ic_arrow_back_black_24dp));
toolbarDetails.setNavigationOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
mWebSocketClient.close();
onBackPressed();
}
});
llm.setOrientation(LinearLayoutManager.VERTICAL);
// nestedScrollView = (NestedScrollView) findViewById(R.id.nestedScroll);
lvTracks = (RecyclerView) findViewById(R.id.tracks_recycler_view);
lvTracks.setLayoutManager(llm);
lvTracks.setNestedScrollingEnabled(false);
// nestedScrollView.setSmoothScrollingEnabled(true);
progressBar = (ProgressBar) findViewById(R.id.progressBarDetails);
progressBar.setVisibility(View.GONE);
loading = true;
getTracks();
lvTracks.addOnScrollListener(new RecyclerView.OnScrollListener() {
#Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
visibleItemCount = llm.getChildCount();
totalItemCount = llm.getItemCount();
firstVisibleItem = llm.findFirstVisibleItemPosition();
Log.i("dx", String.valueOf(dx));
Log.i("dy", String.valueOf(dy));
Log.i("visibleItemCount", String.valueOf(visibleItemCount));
Log.i("firstVisibleItem", String.valueOf(firstVisibleItem));
Log.i("totalItemCount", String.valueOf(totalItemCount));
if (!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)) {
loading = true;
getMoreTracks(1, 2);
}
}
});
//
// nestedScrollView.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() {
// #Override
// public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {
// if (!loading && v.getChildAt(v.getChildCount() - 1) != null) {
// if ((scrollY >= (v.getChildAt(v.getChildCount() - 1).getMeasuredHeight() - v.getMeasuredHeight())) &&
// scrollY > oldScrollY) {
// progressBar.setVisibility(View.VISIBLE);
// loading = true;
//
// getMoreTracks(scrollX, scrollY);
//
//
// }
// }
// }
// });
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
}
#Override
public void onBackPressed() {
mWebSocketClient.close();
super.onBackPressed();
}
}
}
Updated XML
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleGravity="bottom"
app:expandedTitleMarginStart="#dimen/activity_vertical_margin"
app:expandedTitleTextAppearance="#style/CollapsedAppBarTopic"
app:layout_collapseMode="parallax"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_collapseMode="parallax">
<FrameLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/activity_vertical_margin">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/imageView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="#dimen/activity_vertical_margin"
android:alpha="0.5"
app:layout_collapseMode="parallax"
app:srcCompat="#drawable/logo_white" />
<TextView
android:id="#+id/yourVotes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginEnd="15dp"
android:layout_marginRight="15dp"
android:layout_toLeftOf="#+id/votesSum"
android:layout_toStartOf="#+id/votesSum"
android:text="#string/YourVotes"
android:textAlignment="viewStart" />
<TextView
android:id="#+id/votesSum"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginRight="#dimen/activity_horizontal_margin"
android:text="1" />
</RelativeLayout>
</FrameLayout>
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbarDetails"
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.v7.widget.RecyclerView
android:id="#+id/tracks_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="60dp"
android:background="#color/colorBackground"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#color/colorPrimary"
app:itemBackground="#color/colorPrimary"
app:itemIconTint="#drawable/bottom_nav_colors"
app:itemTextColor="#drawable/bottom_nav_colors"
app:menu="#menu/navigation" />
</android.support.design.widget.CoordinatorLayout>

All you have to do is use below line in your activity class:
ViewCompat.setNestedScrollingEnabled(recycler_view, false);
its compatible for lower versions also. and if you want to give compatible to API >21 only then use;
recycler_view.setNestedScrollingEnabled(false);

Since your final objective is to have the ToolBar diasappear/collapse when you scroll on the recyclerView, you should not use NestedScrollView, but CoordinatorLayout instead.
Have a look here.
Here is a quick example taken from the doc I provided on how to create a collapsing toolbar.
Firstly in your xml:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"></android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
Make sure that in your Activity, in your onCreate() you set it the right way:
CollapsingToolbarLayout collapsingToolbar =
(CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
collapsingToolbar.setTitle("Title");
Hope it helps.