I am having trouble positioning views in a full screen android app - android

Hey thank you very much for that help and the code looks great but now I am just running into all sorts of problems... First I can not make a circle with the 2nd stacked ImageView, also I can not position the first 3 ImageViews to the top of the screen with 8dp of padding, it will literally not let me do anything without the whole thing becoming one big cluster. I have an image of what I am trying to achieve and will attach it. If you have any ideas all are welcome. Thank you very much by the way! enter image description here


XML code
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:background="?attr/fullscreenBackgroundColor"
android:theme="#style/ThemeOverlay.Experiment.FullscreenContainer"
tools:context=".FullscreenActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="8dp">
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:layout_weight="1"
android:src="#mipmap/ic_launcher"
android:textAllCaps="false"
android:textColor="#color/white" />
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:layout_weight="1"
android:src="#mipmap/ic_launcher"
android:textAllCaps="false"
android:textColor="#color/white" />
<ImageView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:layout_weight="1"
android:src="#mipmap/ic_launcher"
android:textAllCaps="false"
android:textColor="#color/white" />
</LinearLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_margin="12dp"
android:background="#color/white"
android:src="#drawable/ic_launcher_background"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_image"
android:layout_width="120dp"
android:layout_height="120dp"
android:src="#drawable/cybersecurity_1134x638"
app:civ_border_color="#FF000000"
app:civ_border_width="2dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.526"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/white"
android:text="Inner Button"
android:textAllCaps="false"
android:textColor="#color/black"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.762"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.795" />
</androidx.constraintlayout.widget.ConstraintLayout>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/black"
android:text="Button1"
android:textAllCaps="false"
android:textColor="#color/white" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/black"
android:text="Button2"
android:textAllCaps="false"
android:textColor="#color/white" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/black"
android:text="Button3"
android:textAllCaps="false"
android:textColor="#color/white" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/black"
android:text="Button4"
android:textAllCaps="false"
android:textColor="#color/white" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/black"
android:text="Button5"
android:textAllCaps="false"
android:textColor="#color/white" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:backgroundTint="#color/white"
android:text="Button"
android:textAllCaps="false"
android:textColor="#color/black" />
<ImageView
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_margin="12dp"
android:background="#color/black"
android:src="#drawable/ic_launcher_background" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
Design-Output
Use https://github.com/hdodenhof/CircleImageView for Circle ImageView.
Add dependency in your app Level gradle file.
implementation 'de.hdodenhof:circleimageview:3.1.0'
Add or replace ImageView to your XML file.
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_image"
android:layout_width="120dp"
android:layout_height="120dp"
android:src="#drawable/cybersecurity_1134x638"
app:civ_border_color="#FF000000"
app:civ_border_width="2dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.526"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
For Top Images I think you should check the height of the imageview Instead of wrap_content you can change with static value.

Related

How to show image in the place of creating message in androidX..?

I am creating an offlline SMS app.In that I have to place the option of selecting an image button and after selecting image I want to place it at the position of sending image.But do not understand how to adjust the imageView button to get desired layout.Someone can help me..?
I have searched a lot but found nothing.
XML FILE
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto">
<LinearLayout
android:layout_width="match_parent"
android:padding="5dp"
android:layout_height="wrap_content"
android:gravity="left"
android:orientation="horizontal" tools:ignore="MissingConstraints" android:id="#+id/linearLayout">
<ImageView
android:id="#+id/inbox_thumb"
android:layout_width="60dp"
android:layout_height="60dp"
android:src="#drawable/circle"/>
<TextView
android:hint="Phone Number"
android:layout_width="5dp"
android:layout_marginTop="6dp"
android:padding="10dp"
android:textStyle="bold"
android:textSize="15dp"
android:gravity="left"
android:layout_height="wrap_content" android:id="#+id/phone" android:layout_weight="1"/>
</LinearLayout>
<androidx.recyclerview.widget.RecyclerView android:layout_width="384dp"
android:layout_height="661dp"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:id="#+id/reyclerview_message_list"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/linearLayout">
</androidx.recyclerview.widget.RecyclerView>
<View android:layout_width="0dp"
android:layout_height="2dp"
tools:ignore="MissingConstraints"
android:background="#color/colorPrimaryDark"
android:layout_marginBottom="0dp"
app:layout_constraintBottom_toTopOf="#+id/message_area"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
</View>
<LinearLayout android:layout_width="0dp" android:layout_height="wrap_content"
android:id="#+id/message_area"
android:orientation="horizontal"
android:minHeight="48dp"
android:background="#ffffff"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
tools:ignore="MissingConstraints">
<Button
android:text="attach img"
android:layout_width="wrap_content"
android:layout_height="wrap_content" android:id="#+id/btn1"
/>
<EditText
android:id="#+id/txtMessage"
android:hint="Enter message"
android:background="#android:color/transparent"
android:layout_gravity="center"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:maxLines="6"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content" app:srcCompat="#mipmap/ic_launcher" android:id="#+id/imageView2"
android:layout_weight="1"/>
<Button
android:id="#+id/btnSend"
android:text="SEND"
android:textSize="14dp"
android:clickable="true"
android:layout_width="64dp"
android:layout_height="48dp"
android:gravity="center"
android:layout_gravity="bottom" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
Expected
Actual

I have created a basic template using your Layout in AndroidX. You can beautify it using your style, icons and colors accordingly. Please copy it and look at it in your Android Studio.
<androidx.constraintlayout.widget.ConstraintLayout 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">
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="left"
android:orientation="horizontal"
android:padding="5dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/inbox_thumb"
android:layout_width="60dp"
android:layout_height="60dp"
android:src="#drawable/ic_launcher" />
<androidx.appcompat.widget.AppCompatTextView
android:id="#+id/phone"
android:layout_width="5dp"
android:layout_height="wrap_content"
android:layout_marginTop="6dp"
android:layout_weight="1"
android:gravity="left"
android:hint="Phone Number"
android:padding="10dp"
android:textSize="15dp"
android:textStyle="bold" />
</LinearLayout>
<LinearLayout
android:id="#+id/message_area"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="10dp"
android:background="#drawable/rounded_rect_shape"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
<androidx.appcompat.widget.AppCompatImageButton
android:id="#+id/btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:src="#drawable/ic_launcher" />
<androidx.cardview.widget.CardView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
app:cardBackgroundColor="#android:color/darker_gray"
app:cardCornerRadius="6dp"
app:cardElevation="2dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<androidx.appcompat.widget.AppCompatImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="#mipmap/ic_launcher" />
<androidx.appcompat.widget.AppCompatEditText
android:id="#+id/txtMessage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:background="#android:color/transparent"
android:hint="Enter message"
android:maxLines="6" />
</LinearLayout>
</androidx.cardview.widget.CardView>
<androidx.appcompat.widget.AppCompatButton
android:id="#+id/btnSend"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:gravity="center"
android:text="SEND"
android:textSize="14dp" />
</LinearLayout>
<View
android:layout_width="0dp"
android:layout_height="2dp"
android:layout_marginBottom="0dp"
android:background="#color/colorPrimaryDark"
app:layout_constraintBottom_toTopOf="#+id/message_area"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/reyclerview_message_list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="16dp"
android:scrollbarAlwaysDrawVerticalTrack="true"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintBottom_toTopOf="#id/message_area"
app:layout_constraintTop_toBottomOf="#+id/linearLayout"/>

If I understand correctly, you're trying to place the "imageView2" ImageView on top of the "txtMessage" EditText, is that right?
If that's how it is, what you need to do is wrap both of them in a vertical LinearLayout, like so:
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:id="#+id/txtMessage"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_weight="1"
android:background="#android:color/transparent"
android:hint="Enter message"
android:maxLines="6" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
app:srcCompat="#mipmap/ic_launcher" />
</LinearLayout>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="bottom"
android:orientation="horizontal"
android:padding="8dp">
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/circle_drawable"
android:backgroundTint="#android:color/black"
android:padding="8dp"
android:layout_margin="8dp"
android:src="#drawable/ic_add_black_24dp"
android:tint="#android:color/white" />
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:cardBackgroundColor="#android:color/darker_gray"
app:cardCornerRadius="6dp"
app:cardElevation="2dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:src="#mipmap/ic_launcher" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="bottom"
android:weightSum="1">
<EditText
android:id="#+id/et1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_toStartOf="#+id/ib2"
android:layout_margin="8dp"
android:text="Hello" />
<ImageButton
android:id="#+id/ib2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/circle_drawable"
android:backgroundTint="#android:color/black"
android:padding="8dp"
android:layout_margin="8dp"
android:layout_alignParentEnd="true"
android:src="#drawable/ic_send_black_24dp"
android:tint="#android:color/white" />
</RelativeLayout>
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
I have used background drawable, you can replace with your add and send image.
Hope it solves your problem.

Why does my RecyclerView Layout width looks like its wrap content even though i put it match parent

so I have a recycler view layout that look like the image below. I set the width to match parent and in this layout it is like what I want it to be. So when I call this recycler layout to my home I want the view to be exactly like this.
Recycler Layout
but when I call the recycler view to my home layout and I try to run it why does it becomes like this? its like my width is wrap content. the width isn't full until the right side.
My recycler view when I run the app
here is my recyclerview layout xml code :
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
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="90dp"
android:layout_margin="5dp">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView"
android:layout_width="72dp"
android:layout_height="72dp"
android:layout_marginLeft="5dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
android:src="#mipmap/ic_launcher"
/>
<TextView
android:id="#+id/textViewTitle"
android:layout_marginLeft="5dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintLeft_toRightOf="#+id/imageView"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginTop="20dp"
android:text="Plastik"
android:textSize="20sp"
android:textStyle="bold" />
<TextView
android:id="#+id/textViewCategory"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
app:layout_constraintTop_toBottomOf="#+id/textViewTitle"
app:layout_constraintLeft_toRightOf="#+id/imageView"
android:text="Non Organik"
android:textSize="16sp"/>
<TextView
android:id="#+id/textViewPrice"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Price"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
android:layout_marginRight="5dp"
android:textSize="#dimen/font_medium"
android:textStyle="bold"/>
</android.support.constraint.ConstraintLayout>
</android.support.v7.widget.CardView>
And this is my Home Layout xml code
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView 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:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:orientation="vertical"
android:theme="#style/HomeTheme"
tools:context=".HomeFragment">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/logog40w"
android:layout_width="150dp"
android:layout_height="60dp"
android:src="#drawable/logog4w"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/pohong4w"
android:layout_width="200dp"
android:layout_height="200dp"
android:layout_alignParentRight="true"
android:src="#drawable/pohong4w"
app:layout_constraintRight_toRightOf="parent" />
<TextView
android:id="#+id/user_name"
android:layout_width="85dp"
android:layout_height="wrap_content"
android:layout_marginTop="100dp"
android:text="Name"
android:textSize="25sp"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/pohong4w"
app:layout_constraintTop_toTopOf="#+id/logog40w" />
<TextView
android:id="#+id/jemputrutin_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="20dp"
android:text="Status Penjemputan Rutin:"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="#+id/pohong4w" />
<TextView
android:id="#+id/fragment_home_jemputrutin_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:text="STATUS"
android:textSize="18sp"
android:textStyle="bold"
app:layout_constraintLeft_toRightOf="#+id/jemputrutin_status"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="#+id/jemputrutin_status" />
<LinearLayout
android:id="#+id/layoutmainfeature"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:orientation="horizontal"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/jemputrutin_status">
<android.support.v7.widget.CardView
android:id="#+id/jemput_rutin"
android:layout_width="105dp"
android:layout_height="135dp"
android:layout_margin="5dp"
tools:layout_editor_absoluteX="51dp"
tools:layout_editor_absoluteY="51dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
android:padding="8dp"
>
<ImageView
android:layout_width="90dp"
android:layout_height="90dp"
android:padding="4dp"
android:src="#drawable/g4w_jemputrutin" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Jemput Rutin"
android:textColor="#000000"
android:textSize="12dp" />
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/antar_sendiri"
android:layout_width="105dp"
android:layout_height="135dp"
android:layout_margin="5dp"
tools:layout_editor_absoluteX="51dp"
tools:layout_editor_absoluteY="51dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
android:padding="8dp">
<ImageView
android:id="#+id/img_antarsendiri"
android:layout_width="90dp"
android:layout_height="90dp"
android:padding="4dp"
android:src="#drawable/g4w_antarsendiri" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Antar Sendiri"
android:textColor="#000000"
android:textSize="12dp" />
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:id="#+id/jemput_sekarang"
android:layout_width="105dp"
android:layout_height="135dp"
android:layout_margin="5dp"
tools:layout_editor_absoluteX="51dp"
tools:layout_editor_absoluteY="51dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
android:padding="8dp">
<ImageView
android:layout_width="90dp"
android:layout_height="90dp"
android:padding="4dp"
android:src="#drawable/g4w_jemputsekarang" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Jemput Sekarang"
android:textColor="#000000"
android:textSize="11dp" />
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
<TextView
android:id="#+id/recyler_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="Harga Per Kg"
android:textAppearance="#style/TextAppearance.AppCompat.Headline"
android:textStyle="bold"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="#+id/layoutmainfeature" />
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:nestedScrollingEnabled="true"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/recyler_title" />
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.NestedScrollView>

remove these two lines from recycler view and try again
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent
which makes your recycler view part like this
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:nestedScrollingEnabled="true"
app:layout_constraintTop_toBottomOf="#+id/recyler_title" />

How do I convert constraint layout to Relative layout?

I am currently trying to convert my constraint layout to relative layout, but not sure how to deal with "app:" parameters which refer to constraints top of, bottom of etc. Here's my code for clarification:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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/myFragmentConstaintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/gray"
android:orientation="vertical">
<RelativeLayout
android:id="#+id/activeSpeakerContainer"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/groupList"
app:layout_constraintDimensionRatio="1:1"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/myStatusContainer">
<FrameLayout
android:id="#+id/activeSpeakerVideo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/black" />
<ImageView
android:id="#+id/activeSpeakerImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="48dp"
android:background="#color/black"
android:src="#drawable/my_default_profile" />
<TextView
android:id="#+id/myParticipantCountText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:ellipsize="end"
android:lines="1"
android:background="#drawable/rounded_rect"
android:layout_marginStart="18dp"
android:layout_marginTop="18dp"
android:drawablePadding="2dip"
android:paddingLeft="10dip"
android:textColor="#color/gray6"
android:textSize="16sp"
android:textStyle="bold"
android:drawableLeft="#drawable/drawable_user_count_icon"
android:drawableStart="#drawable/drawable_user_count_icon"/>
<ImageView
android:id="#+id/image_mark"
android:layout_width="130dp"
android:layout_height="28dp"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginBottom="36dp"
android:layout_marginRight="16dp"
android:layout_marginEnd="16dp"
android:src="#drawable/image_mark_blue" />
<TextView
android:id="#+id/activeSpeakerName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#AA555555"
android:ellipsize="end"
android:gravity="center_horizontal|bottom"
android:lines="1"
android:textColor="#color/gray6"
android:textSize="16sp"
tools:text="user#gmail.com" />
<TextView
android:id="#+id/DurationText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:gravity="start|bottom"
android:lines="1"
android:textColor="#color/gray6"
android:textSize="14sp"
tools:text="03:16" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/screenShareContainer"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="0dp"
android:layout_marginStart="0dp"
android:layout_marginBottom="0dp"
android:layout_marginLeft="0dp"
android:layout_marginRight="0dp"
app:layout_constraintDimensionRatio="16:9"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/myStatusContainer"
app:layout_constraintBottom_toTopOf="#+id/myButtonContainer">
<PinchandZoomLayout
android:id="#+id/screenShareVideo"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/black"/>
<ImageButton
android:id="#+id/screenShareToggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginBottom="36dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:background="#android:color/transparent"
android:src="#drawable/ic_video_cam_switch" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/myStatusContainer"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#AA555555"
android:padding="8dp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<TextView
android:id="#+id/myNameText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:ellipsize="end"
android:lines="1"
android:textColor="#color/gray6"
android:textSize="14sp"
tools:text="user2#gmail.com" />
<ImageButton
android:id="#+id/myButtonVideoRotate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:background="#android:color/transparent"
android:src="#drawable/ic_video_cam_switch" />
</RelativeLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/groupList"
android:layout_width="0dp"
android:layout_height="0dp"
android:visibility="invisible"
app:layout_constraintBottom_toTopOf="#+id/myButtonContainer"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/activeSpeakerContainer">
</android.support.v7.widget.RecyclerView>
<RelativeLayout
android:id="#+id/myProgressContainer"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="#+id/groupList"
app:layout_constraintLeft_toLeftOf="#+id/groupList"
app:layout_constraintRight_toRightOf="#+id/groupList"
app:layout_constraintTop_toTopOf="#+id/groupList">
<TextView
android:id="#+id/myProgressName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="8dp"
android:gravity="center_horizontal"
android:textColor="#color/gray6"
android:textSize="20sp"
tools:text="My Name" />
<TextView
android:id="#+id/myProgressText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/myProgressName"
android:layout_centerHorizontal="true"
android:layout_marginTop="8dp"
android:gravity="center_horizontal"
android:text="#string/my_status_connecting"
android:textColor="#color/gray6"
android:textSize="16sp" />
</RelativeLayout>
<include
android:id="#+id/myButtonContainer"
layout="#layout/layout_my_button_bar_1_row"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent" />
<android.support.constraint.ConstraintLayout
android:id="#+id/myButtonContainerUnavailable"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:visibility="gone"
app:layout_constraintBottom_toBottomOf="#+id/myButtonContainer"
app:layout_constraintLeft_toLeftOf="#+id/myButtonContainer"
app:layout_constraintRight_toRightOf="#+id/myButtonContainer"
app:layout_constraintTop_toTopOf="#+id/myButtonContainer"
tools:visibility="visible">
<Button
android:id="#+id/myButtonCancel"
style="#style/myButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableTop="#drawable/btn_my_end"
android:text="#string/dialog_button_cancel"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toLeftOf="#+id/myButtonRetry"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/myButtonRetry"
style="#style/myButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableTop="#drawable/btn_my_retry"
android:text="#string/button_try_again"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="#+id/myButtonCancel"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>
I just tried replacing "android.support.constraint.ConstraintLayout" with relative layout but there's these parameters " app:layout_constraint..." which are more difficult to deal with.Any easier way to go around this?
Thanks in advance.

I am using Android Studio version 3.1.2
No need to do that much complex stuff.Just right click on
layout name in component tree as shown in image and select option convert view and choose the layout which you want to use.

Nested LinearLayouts inside ScrollView inside ConstraintLayout best practise

I have a layout where I was using Constraintlayout and it was working fine with 4 horizontial Linearlayouts all with there own subviews. There is an imageview at the top of the screen and adview at the bottom.
It was looking fine on large screens but obviously not on small screens so I placed the 4 horizontial Linearlayouts inside a Vertical Linearlayout that is inside a ScrollView.
Its working fine but I am uncertain if this is the correct way to acomplish this tasks. I would of liked to add a constraint for the internal horizontial Linearlayouts but had to settle for match parent for width and set the height along with margins.
Is this approach correct or is there a better way?
<android.support.constraint.ConstraintLayout
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorBackground"
tools:context="au.com.xxxxxx.xxxxx.Activities.MainActivity">
<ImageView
android:id="#+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:cropToPadding="false"
android:scaleType="fitXY"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/fish_in_wave" />
<ScrollView
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="0dp"
android:layout_marginLeft="0dp"
android:layout_marginRight="0dp"
android:layout_marginTop="0dp"
app:layout_constraintBottom_toTopOf="#+id/adView"
app:layout_constraintHorizontal_bias="0.496"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/imageView">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout
android:id="#+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="10dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
android:orientation="horizontal"
tools:layout_editor_absoluteX="56dp"
tools:layout_editor_absoluteY="354dp">
<ImageButton
android:id="#+id/closest"
android:layout_width="70dp"
android:layout_height="70dp"
android:background="#color/colorPrimary"
android:elevation="10dp"
android:paddingBottom="40dp"
android:paddingEnd="40dp"
android:paddingLeft="40dp"
android:paddingRight="40dp"
android:paddingStart="40dp"
android:paddingTop="40dp"
app:srcCompat="#drawable/near_me_white_24dp"
tools:layout_editor_absoluteX="35dp"
tools:layout_editor_absoluteY="161dp" />
<Button
android:id="#+id/fsNearMe"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:background="#color/colorWhite"
android:elevation="10dp"
android:text="Show closest fishing spots."
android:textAlignment="center"
android:textColor="#color/colorBlack"
android:textIsSelectable="false"
android:textSize="18sp"
tools:layout_editor_absoluteX="107dp"
tools:layout_editor_absoluteY="256dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="10dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="10dp"
android:orientation="horizontal"
tools:layout_editor_absoluteX="54dp"
tools:layout_editor_absoluteY="451dp">
<ImageButton
android:id="#+id/browseby"
android:layout_width="70dp"
android:layout_height="70dp"
android:background="#color/colorPrimary"
android:elevation="10dp"
app:srcCompat="#drawable/map_white_24dp"
tools:layout_editor_absoluteX="35dp"
tools:layout_editor_absoluteY="255dp" />
<Button
android:id="#+id/fsByState"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/fsNearMe"
android:background="#color/colorWhite"
android:elevation="10dp"
android:text="Browse known fishing spots"
android:textAlignment="center"
android:textColor="#color/colorBlack"
android:textSize="18sp"
tools:layout_editor_absoluteX="123dp"
tools:layout_editor_absoluteY="244dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="10dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="10dp"
android:orientation="horizontal"
tools:layout_editor_absoluteX="54dp"
tools:layout_editor_absoluteY="551dp">
<ImageButton
android:id="#+id/addOwn"
android:layout_width="70dp"
android:layout_height="70dp"
android:background="#color/colorPrimary"
android:elevation="10dp"
app:srcCompat="#drawable/add_location_white_24dp"
tools:layout_editor_absoluteX="185dp"
tools:layout_editor_absoluteY="0dp" />
<Button
android:id="#+id/addMyMap"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/fsByState"
android:background="#color/colorWhite"
android:elevation="10dp"
android:text="Add your own fishing spots"
android:textAlignment="center"
android:textColor="#color/colorBlack"
android:textSize="18sp"
tools:layout_editor_absoluteX="107dp"
tools:layout_editor_absoluteY="355dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout4"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginBottom="20dp"
android:layout_marginEnd="20dp"
android:layout_marginStart="20dp"
android:layout_marginTop="10dp"
android:orientation="horizontal"
tools:layout_editor_absoluteX="67dp"
tools:layout_editor_absoluteY="629dp">
<ImageButton
android:id="#+id/notes"
android:layout_width="70dp"
android:layout_height="70dp"
android:background="#color/colorPrimary"
android:elevation="10dp"
app:srcCompat="#drawable/note_add_white_24dp"
tools:layout_editor_absoluteX="35dp"
tools:layout_editor_absoluteY="449dp" />
<Button
android:id="#+id/addMyNotes"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorWhite"
android:elevation="10dp"
android:text="Notes and Pictures"
android:textAlignment="center"
android:textColor="#color/colorBlack"
android:textSize="18sp"
tools:layout_editor_absoluteX="0dp"
tools:layout_editor_absoluteY="0dp" />
</LinearLayout>
</LinearLayout>
</ScrollView>
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
app:adSize="BANNER"
app:adUnitId="#string/UNIT_ID"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent" />
</android.support.constraint.ConstraintLayout>

after sync gradle all layout change in build

i was working in android studio with any problem, but suddenly after opening "lint warning in layout" after click on its suggest Gradle synced and all my layout has been change in output APK but all layout in android studio has not any problem .please see my attached image .
why this problem occurred ?
this is my xml code :
<android.support.constraint.ConstraintLayout 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"
tools:context="fragments.AboutHimmelFragment"
tools:layout_editor_absoluteY="81dp"
tools:layout_editor_absoluteX="0dp">
<!-- TODO: Update blank fragment layout -->
<ImageView
android:id="#+id/imageView9"
android:layout_width="0dp"
android:layout_height="167dp"
android:scaleType="fitXY"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/headerabout" />
<LinearLayout
android:id="#+id/lin_telegramchannel"
android:layout_width="70dp"
android:layout_alignParentBottom="true"
android:layout_height="70dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="129dp"
android:background="#drawable/circle"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal"
app:layout_constraintHorizontal_bias="0.076"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp">
<ImageView
android:id="#+id/imageView10"
android:layout_width="35dp"
android:layout_height="35dp"
app:srcCompat="#drawable/icontelegram" />
</LinearLayout>
<ScrollView
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="32dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/imageView9">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:orientation="vertical">
<TextView
android:id="#+id/txt_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="درباره هیمل"
android:textColor="#color/title"
android:textSize="24sp" />
<LinearLayout
android:id="#+id/ln_Call1"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="5dp"
android:background="#color/BackGeneralGreen"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal">
<TextView
android:id="#+id/textView66"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="09122831879"
android:textColor="#color/WhiteColor"
android:textSize="20sp" />
<LinearLayout
android:layout_width="1dp"
android:layout_height="match_parent"
android:layout_marginBottom="9dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="9dp"
android:background="#color/WhiteColor"
android:orientation="horizontal"></LinearLayout>
<ImageView
android:id="#+id/imageView133"
android:layout_width="26dp"
android:layout_height="24dp"
app:srcCompat="#drawable/iconphone" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="5dp"
android:background="#color/BackGeneralGreen"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal">
<TextView
android:id="#+id/textView666"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="021-55741239"
android:textColor="#color/WhiteColor"
android:textSize="20sp" />
<LinearLayout
android:layout_width="1dp"
android:layout_height="match_parent"
android:layout_marginBottom="9dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="9dp"
android:background="#color/WhiteColor"
android:orientation="horizontal"></LinearLayout>
<ImageView
android:id="#+id/imageView1333"
android:layout_width="26dp"
android:layout_height="24dp"
app:srcCompat="#drawable/iconphone" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="5dp"
android:background="#color/BackGeneralGreen"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal">
<TextView
android:id="#+id/textView65"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="09101596788"
android:textColor="#color/WhiteColor"
android:textSize="20sp" />
<LinearLayout
android:layout_width="1dp"
android:layout_height="match_parent"
android:layout_marginBottom="9dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="9dp"
android:background="#color/WhiteColor"
android:orientation="horizontal"></LinearLayout>
<ImageView
android:id="#+id/imageView13"
android:layout_width="26dp"
android:layout_height="24dp"
app:srcCompat="#drawable/iconphone" />
</LinearLayout>
<LinearLayout
android:id="#+id/Ln_SendMail"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_marginTop="5dp"
android:background="#color/BackGeneralGreen"
android:gravity="center_vertical|center_horizontal"
android:orientation="horizontal">
<TextView
android:id="#+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="info#himmel.com"
android:textColor="#color/WhiteColor"
android:textSize="20sp" />
<LinearLayout
android:layout_width="1dp"
android:layout_height="match_parent"
android:layout_marginBottom="9dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="9dp"
android:background="#color/WhiteColor"
android:orientation="horizontal"></LinearLayout>
<ImageView
android:id="#+id/imageView132"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:srcCompat="#android:drawable/sym_action_email" />
</LinearLayout>
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:orientation="horizontal"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="467dp">
<ImageView
android:id="#+id/imageView14"
android:layout_width="39dp"
android:layout_height="29dp"
android:layout_marginTop="20dp"
app:srcCompat="#drawable/iconabout" />
<TextView
android:id="#+id/txt_Content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
android:layout_weight="1"
android:gravity="top|right"
android:lineSpacingExtra="14sp"
android:text="#string/AboutHimmel"
android:textSize="18sp" />
</LinearLayout>
i clean and remove apk in emulator more than 3 times but never thing has not been changed ! any one can help me ?

I found reason ! this happened because of list line :
<ScrollView
android:layout_width="0dp"
android:layout_height="0dp"
when i change 0dp to match-parent its work fine. but yet i dont know why this doesn't show in preview !

Try, go to Files>Invalidate Cache/Restart

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