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In design, EditText error "Render problem" in android

i have error with EditText is "render problem" in design in android when i drag and drop "Plain Text" from Palette to frame design. But when i run app, app run and show normally in genymotion.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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=".MainActivity">
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.122" />
<EditText
android:id="#+id/editTextTextPersonName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="92dp"
android:ems="10"
android:inputType="textPersonName"
android:text="Name"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView" />
</androidx.constraintlayout.widget.ConstraintLayout>
thank you!

i solved this by change rendering engine (below the message Rendering problem). Sry. forgot to take a screenshot :P

Best way is to let android studio instruct you what could be possibly done a manner; efficient & standardized for developer by pressing alt+enter or following tip icon & applying the changes.

One thing you need to always remember is that "when you are using drag and drop feature in the android studio you need to extract string resources for every component
see this image of my code
In this code, the text view type is not specified in most cases like you there is an error for Hardcoded string. try to use ALT+Enter for specifically required operation on this particular component.

Element TextViewCompat is not allowed here

I'm trying to use TextViewCompat on my app to support older android versions according this article from Android Documentation.
But I'm facing this waring on Android Studio:
Element TextViewCompat is not allowed here
This inspection highlights unallowed XML tags in Android resource files and AndroidManifest.xml
What am I doing wrong?
<?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/parent"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.841"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.87" />
<TextViewCompat
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginTop="8dp"
android:textSize="120sp"
android:text="10 min"
app:layout_constraintBottom_toTopOf="#+id/button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

Use android.support.v7.widget.TextViewCompat or android.support.v7.widget.AppCompatTextView

You don't need to do this to take advantage of AppCompatTextView, as per the documentation:
This will automatically be used when you use TextView in your layouts and the top-level activity / dialog is provided by appcompat. You should only need to manually use this class when writing custom views.
Basically, when you build your app, appcompat swaps out instances of various UI widgets in XML for the Compat version. As long as you aren't extending a widget, you don't need to worry about this behavior (and you'll get a lint warning telling you what to do if you do want to extend widgets).
You only need TextViewCompat if you try to manipulate the auto-sizing APIs programmatically from Java/Kotlin. This is done by finding the view as a TextView, and then using static methods on TextViewCompat:
TextView textView = findViewById(R.id.textView);
TextViewCompat.setAutoSizeTextTypeWithDefaults(textview, myTextSizeType);

Elements overlapping on each other in my android studio emulator

I am new to Android Studio, when I created my app all my elements overlapped on each other. I am not sure how to edit this code. Please give me a detailed description.
Layout editor and emulator result
Code for the layout
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="schemas.android.com/apk/res/android";
xmlns:app="schemas.android.com/apk/res-auto";
xmlns:tools="schemas.android.com/tools";
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.first.anew.MainActivity">
<TextView
android:layout_width="216dp"
android:layout_height="60dp"
android:text="Hello World!"
tools:layout_editor_absoluteY="16dp"
tools:layout_editor_absoluteX="61dp" />
<Button
android:id="#+id/button"
android:layout_width="100dp"
android:layout_height="45dp"
android:text="Login"
tools:layout_editor_absoluteY="343dp"
tools:layout_editor_absoluteX="177dp" />
<TextView
android:id="#+id/textView"
android:layout_width="215dp"
android:layout_height="65dp"
android:text="username"
tools:layout_editor_absoluteY="117dp"
tools:layout_editor_absoluteX="61dp" />
<android.support.constraint.Guideline
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/guideline"
app:layout_constraintGuide_begin="20dp"
android:orientation="horizontal" />
<EditText
android:id="#+id/editText"
android:layout_width="217dp"
android:layout_height="57dp"
android:ems="10"
android:inputType="textPassword"
tools:layout_editor_absoluteY="218dp"
tools:layout_editor_absoluteX="61dp" />
</android.support.constraint.ConstraintLayout>

Your emulator screen and the layout editor are different because of tools namespace. In a few words, it is a tool that helps you to better visualise the written code. This tool also generates constraints like tools:layout_editor_absoluteY="343dp", which inform the layout editor on how it should draw the views. The problem is that this constraints will not be present in your app code, resulting in that weird behaviour when all views are overlapped (since the above mentioned constraints are not used in the app code we can deduct that there are no constraint at all).
Since you are a beginner I would recommend to start with a LinearLayout or RelativeLayout because I think that ConstraintLayout is harder to understand, use and debug.

put the whole code. if you are using Relativelayout, this will happen. change it to Linearlayout at the top i mean the bottom most element, and put orientation as vertical

see this - for me my soltion works...
add this in xml to the button etc
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.57"
then play with it in the design.
Good luck! :)

you can click the infer Constraints buttonclick on this
and run your programme again..it will solve your problem

GUI elements not displaying properly

I was following along some Android tutorial on Youtube when I encountered the following problem:
(left the designer, right the emulator)
I tried searching on google, but can't seem to find the right link.
Does anyone have any idea what is going on? I tried deleting and placing new elements, but the same problem keeps occurring.
[Edit]
XML code which I didn't change. This was created with a new project.
All elements in the picture were dragged and dropped. No code was changed.
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="visible"
tools:context="com.example.todor.myapplication.MainActivity">
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
tools:layout_editor_absoluteX="159dp"
tools:layout_editor_absoluteY="235dp"
tools:text="#string/loginbutton" />
<TextView
android:id="#+id/textView2"
android:layout_width="132dp"
android:layout_height="31dp"
android:layout_marginBottom="42dp"
android:fontFamily="monospace"
android:textAlignment="center"
android:textColor="#color/colorAccent"
android:textColorHint="#android:color/holo_blue_bright"
android:textStyle="bold"
android:visibility="visible"
app:layout_constraintBottom_toTopOf="#+id/editText"
tools:text="#string/logintext"
tools:layout_editor_absoluteX="126dp" />
<EditText
android:id="#+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="33dp"
android:width="300dp"
android:ems="10"
android:hint="#string/emailhint"
android:inputType="textEmailAddress"
app:layout_constraintBottom_toTopOf="#+id/editText2"
tools:layout_editor_absoluteX="42dp" />
<EditText
android:id="#+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="40dp"
android:width="300dp"
android:ems="10"
android:hint="#string/passowrdhint"
android:inputType="textPassword"
app:layout_constraintBottom_toTopOf="#+id/button"
tools:layout_editor_absoluteX="42dp" />
</android.support.constraint.ConstraintLay
out>

Here are some tips for you !
Read about Tools Attributes Reference
Android Studio supports a variety of XML attributes in the tools namespace that enable design-time features (such as which layout to show in a fragment) or compile-time behaviors (such as which shrinking mode to apply to your XML resources). When you build your app, the build tools remove these attributes so there is no effect on your APK size or runtime behavior.
You need to understand the difference of below attributes!
tools:text="loginbutton"
android:text="loginbutton"
Your views are not constrained they have only design time position!
Go to the design, drag the corners until the circle turns green and then give the constraint.Here is an extra guidance from linkOne LinkTwo related with ConstraintLayout
If you mess it up big-time you can replace android.support.constraint.ConstraintLayout with LinearLayout but that's not the solution it's another way instead!

android rtl issue using v17 version layout

I'm trying to support rtl view in a layout that has an imageView and textView (so in rtl devices the image will be at the right side of the text, see pic below)
in order to accomplish that I:
created v17 layout (see below).
added android:supportsRtl="true" in the manifest
the layout code:
<RelativeLayout
android:id="#id/asked_by_container"
android:layout_alignParentTop="true"
android:layout_width="match_parent"
android:layout_height="34dp"
android:layout_centerHorizontal="true">
<ImageView
android:layout_width="34dp"
android:layout_height="34dp"
android:id="#+id/profile_imageview"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:background="#drawable/question_profile_icon_corner_radius"
android:scaleType="centerCrop"
android:src="#drawable/anonprofile01" />
<com.theapp.widget.CustomTextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/asked_textview"
android:layout_centerVertical="true"
android:layout_toEndOf="#+id/profile_imageview"
android:layout_marginStart="8dp"
android:textSize="14sp"
app:ttf_name="fonts/merriweather_sans/MerriweatherSans-Regular.otf"/>
</RelativeLayout>
<com.theapp.widget.CustomTextView
android:layout_below="#id/asked_by_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="New Text"
android:id="#+id/question_textview"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:textSize="16sp"
android:layout_marginTop="4dp"
app:ttf_name="fonts/merriweather_sans/MerriweatherSans-Regular.otf"/>
the preview shows that it should work:
android studio regular and rtl preview
To be sure I added rootView.setLayoutDirection(View.LAYOUT_DIRECTION_RTL); in the adapter holding the RelativeLayout.
It didnt work so I made sure the app is actually using the v17 version (by adding a dummy button in the v17 version).. still not working.. any help?
I also checked Force RTL layout direction not working for app but it wasn't useful to me..

Once set layoutDirection opposite to the textDirection
and once set layoutDirection same as the textDirection
to see which one could help you in your situation.