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How to set Dialog width and height in percents in XML

I need my Dialog width and height fill 70% of screen space. I'm using ConstraintLayout as root layout and tried to achieve this by using app:layout_constraintWidth_percent but it's not working.
It would be great to achieve this in XML without Java code.
Here is my code:
<?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="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/dialog_background_shape"
android:padding="#dimen/app_padding">
<TextView
android:id="#+id/textView13"
style="#style/text_plain3"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginTop="0dp"
android:text="#string/add_member_title"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/button_add_member_close"
style="#style/text_title2"
android:textStyle="bold"
android:layout_width="28dp"
android:layout_height="28dp"
android:background="#drawable/button_dialog_close"
android:gravity="center"
android:text="X"
android:textColor="#color/text_plain3"
android:textSize="20sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<TextView
android:id="#+id/add_member_group_id"
style="#style/text_group_id"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginTop="64dp"
android:layout_marginEnd="32dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView13" />
<TextView
android:id="#+id/textView17"
style="#style/text_card"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="#string/add_member_annotation"
app:layout_constraintStart_toStartOf="#+id/add_member_group_id"
app:layout_constraintTop_toBottomOf="#+id/add_member_group_id"/>
<EditText
android:id="#+id/add_member_user_id"
android:layout_width="248dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:ems="10"
android:hint="#string/add_member_hint_id"
android:importantForAutofill="no"
android:inputType="textPersonName"
android:maxLength="28"
app:layout_constraintEnd_toEndOf="#+id/add_member_group_id"
app:layout_constraintStart_toStartOf="#+id/add_member_group_id"
app:layout_constraintTop_toBottomOf="#+id/textView17" />
<Button
android:id="#+id/button_add_member"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
android:layout_marginBottom="48dp"
android:text="#string/add_member_button_add"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="#+id/add_member_group_id"
app:layout_constraintStart_toStartOf="#+id/add_member_group_id"
app:layout_constraintTop_toBottomOf="#+id/add_member_user_id"/>
</androidx.constraintlayout.widget.ConstraintLayout>

In order to have a constraint width/height DialogFragment or (any specific width or height in general):
wrap your ConstraintLayout into another ConstraintLayout in order to make the outer take the full size of the screen, and the inner get the desired width/height percentage:
Make the android:background of the outer to be transparent
Constraint the width & height of the inner ConstraintLayout, make it centered in parent, and add the percentage constraint to the width & height:
app:layout_constraintHeight_percent="0.7"
app:layout_constraintWidth_percent="0.7"
Now the layout looks like:
<?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:id="#+id/root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/main_layout"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_gravity="center"
android:background="#drawable/dialog_background_shape"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHeight_percent="0.7"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintWidth_percent="0.7"
android:padding="#dimen/app_padding">
<TextView
android:id="#+id/textView13"
style="#style/text_plain3"
android:textStyle="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="0dp"
android:layout_marginTop="0dp"
android:text="#string/add_member_title"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/button_add_member_close"
style="#style/text_title2"
android:textStyle="bold"
android:layout_width="28dp"
android:layout_height="28dp"
android:background="#drawable/button_dialog_close"
android:gravity="center"
android:text="X"
android:textColor="#color/text_plain3"
android:textSize="20sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:ignore="HardcodedText" />
<TextView
android:id="#+id/add_member_group_id"
style="#style/text_group_id"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginTop="64dp"
android:layout_marginEnd="32dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView13" />
<TextView
android:id="#+id/textView17"
style="#style/text_card"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="#string/add_member_annotation"
app:layout_constraintStart_toStartOf="#+id/add_member_group_id"
app:layout_constraintTop_toBottomOf="#+id/add_member_group_id" />
<EditText
android:id="#+id/add_member_user_id"
android:layout_width="248dp"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:ems="10"
android:hint="#string/add_member_hint_id"
android:importantForAutofill="no"
android:inputType="textPersonName"
android:maxLength="28"
app:layout_constraintEnd_toEndOf="#+id/add_member_group_id"
app:layout_constraintStart_toStartOf="#+id/add_member_group_id"
app:layout_constraintTop_toBottomOf="#+id/textView17" />
<Button
android:id="#+id/button_add_member"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
android:layout_marginBottom="48dp"
android:text="#string/add_member_button_add"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="#+id/add_member_group_id"
app:layout_constraintStart_toStartOf="#+id/add_member_group_id"
app:layout_constraintTop_toBottomOf="#+id/add_member_user_id" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
In your custom DialogFragment:
Designate the width & height of the dialog to MATCH_PARENT:
dialog?.window?.setLayout(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT
)
Set no background the theme:
<style name="NoBackgroundDialogTheme" parent="Theme.AppCompat.Light.Dialog">
<item name="android:windowBackground">#null</item>
</style>
Custom Dialog Fragment:
Java:
public class MyDialogFragment extends DialogFragment {
#Nullable
#org.jetbrains.annotations.Nullable
#Override
public View onCreateView(#NonNull #NotNull LayoutInflater inflater, #Nullable #org.jetbrains.annotations.Nullable ViewGroup container, #Nullable #org.jetbrains.annotations.Nullable Bundle savedInstanceState) {
return inflater.inflate(
R.layout.dialog_layout, container,
false
);
}
#Override
public int getTheme() {
return R.style.NoBackgroundDialogTheme;
}
#Override
public void onStart() {
// Making the dialog full screen
if (getDialog() != null)
getDialog().getWindow().setLayout(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT
);
super.onStart();
}
}
Kotlin:
class MyDialogFragment : DialogFragment() {
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View {
return inflater.inflate(
R.layout.dialog_layout, container,
false
)
}
override fun getTheme(): Int = R.style.NoBackgroundDialogTheme
override fun onStart() {
super.onStart()
// Making the dialog full screen
dialog?.window?.setLayout(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT
)
}
}
Note: I am assuming that the dialog layout is R.layout.dialog_layout
UPDATE
now if I click on empty space around the Dialog, it doesn't close.
This is because the dialog fragment consumes the entire screen size; you can solve this by the below workaround:
Add an ID to the outer most ConstraintLayout, assume it is root >> Updated on the top layout
Add an ID to the inner ConstraintLayout, assume it is main_layout >> Updated on the top layout
Dismiss the dialog when the root is clicked
Do nothing when the main_layout is clicked to consume the event so that it won't be dismissed:
So, update the onStart() of the MyDialogFragment to:
override fun onStart() {
super.onStart()
// Making the dialog full screen
dialog?.window?.setLayout(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT
)
val root = requireView().findViewById<ConstraintLayout>(R.id.root)
root.setOnClickListener {
dismiss() // Dismiss the dialog
}
val main = requireView().findViewById<ConstraintLayout>(R.id.main_layout)
main.setOnClickListener {
// Consume the event
}
}

ConstraintLayout:
I see your "Dialog" Box contains a lot of different views. For that I made a simple example for you to show how to use Guideline for achieving percentages of Views.
I suggest to learn how this works and rebuild your layout with better constraining on this Guidelines, because now everything is wired up really bad. The idea will be to wire the ConstraintLayout to the Guideline and everything beside that (e.g. TextView etc.) to the ConstraintLayout. (Without Hardcoding!, that's how relative design work).
My example shows a TextView (could be your ConstraintLayout (frame for everything) that has exactly 70% (app:layout_constraintGuide_percent="0.7") vertically and horizontal of the screen. Important is to set the TextViews width and height to 0dp and to attach to the Guideline:
<?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">
<androidx.constraintlayout.widget.Guideline
android:id="#+id/vertical_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.7" />
<androidx.constraintlayout.widget.Guideline
android:id="#+id/horizontal_guideline"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
app:layout_constraintGuide_percent="0.7" />
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="#2962FF"
app:layout_constraintBottom_toTopOf="#+id/horizontal_guideline"
app:layout_constraintEnd_toStartOf="#+id/vertical_guideline"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:text="TextView" />
</androidx.constraintlayout.widget.ConstraintLayout>
Result:
In addition same for LinearLayout:
You can use android:layout_weight="" to give a percent amount. So 70% means a weight of .70.
Keep in mind to set the width or/and height to 0dp
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:text="70 percent of screen"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".70" />
</LinearLayout>

How can access a VIEW in Android

I am working with Platform View in Flutter and I want to return a VIEW in my getView() constructor.
I have an .xml file with the View group that I want to return to in this. My question is how to return this since my constructor returns a VIEW.
That is the sample code:
internal class SBNativeView(context: Context, id: Int, creationParams: Map<String?, Any?>?) : PlatformView, AppCompatActivity() {
private val textView: TextView
override fun getView(): View {
return textView
}
override fun dispose() {}
init {
textView = TextView(context)
textView.textSize = 72f
textView.setBackgroundColor(Color.rgb(255, 255, 255))
textView.text = "Rendered on a native Android view (id: $id)"
}
}
I need return this view
<?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:id="#+id/loginConstraintLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff">
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/textlayout_login_user_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="48dp"
android:layout_marginEnd="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<com.google.android.material.textfield.TextInputEditText
android:id="#+id/edittext_login_user_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="UserID"
android:imeOptions="actionDone"
android:inputType="textVisiblePassword"/>
</com.google.android.material.textfield.TextInputLayout>
<com.google.android.material.textfield.TextInputLayout
android:id="#+id/textlayout_login_nickname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="16dp"
app:layout_constraintTop_toBottomOf="#+id/textlayout_login_user_id">
<com.google.android.material.textfield.TextInputEditText
android:id="#+id/edittext_login_nickname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Nickname"
android:imeOptions="actionDone"
android:inputType="textVisiblePassword"/>
</com.google.android.material.textfield.TextInputLayout>
<androidx.appcompat.widget.AppCompatButton
android:id="#+id/button_login_connect"
style="#style/Widget.AppCompat.Button.Colored"
android:layout_width="match_parent"
android:layout_height="44dp"
android:layout_marginStart="16dp"
android:layout_marginTop="44dp"
android:layout_marginEnd="16dp"
android:background="#774df2"
android:stateListAnimator="#null"
android:text="Connect"
app:layout_constraintTop_toBottomOf="#+id/textlayout_login_nickname"/>
</androidx.constraintlayout.widget.ConstraintLayout>
How Can I return this view in getView()?

Gone elements in ConstraintLayout leaves ghost space

So I have a layout file for a RecycleView which has expandable/collapsible viewholders.
Clicking on the header would expand/collapse the extra data. Everything looks fine in the editor. However, it would have a ghost space similar to layout_marginBottom.
First loaded appearance
Expanded
Collapsed correctly
So the editor would only display the ViewHolder as Figure 2 and 3.
However when running on a device, it would first display Figure 1, then after clicking on it to expand it, it would display Figure 2. Collapsing it once again would display Figure 3 instead of Figure 1. It would continue to display the correct figures (2 and 3).
The extra contents in Figure 2 have common parents with the header which is a ConstraintLayout.
This would happen regardless of the GONE specifiers: Programmatically or XML
Using activity.runOnUIThread would not help. Using a new Handler().onPostDelayed would only be worse as would display Figure 1 but with more unwanted space, as much as Figure 2, only without the extra info.
Here's the XML file:
<?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="wrap_content"
android:layout_marginBottom="10dp"
app:cardCornerRadius="10dp">
<android.support.constraint.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal"
android:padding="10dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/validity"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0">
<ImageButton
android:id="#+id/expand"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:layout_marginRight="8dp"
android:layout_marginEnd="8dp"
app:srcCompat="#drawable/ic_right" />
<TextView
android:id="#+id/title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ellipsize="end"
android:maxLines="1"
android:textColor="#color/textDark" />
</LinearLayout>
<View
android:id="#+id/divider"
android:layout_width="0dp"
android:layout_height="2dp"
android:layout_marginEnd="16dp"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_marginStart="16dp"
android:background="#color/colorSecondaryDark"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/header" />
<TextView
android:id="#+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="8dp"
android:layout_marginStart="10dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toStartOf="#+id/size"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/divider" />
<TextView
android:id="#+id/size"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/divider" />
<TextView
android:id="#+id/amount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="8dp"
android:layout_marginStart="10dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toStartOf="#+id/validity"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/date" />
<LinearLayout
android:id="#+id/validity"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="8dp"
android:gravity="center_vertical"
android:orientation="horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/size">
<ImageView
android:id="#+id/help"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_weight="1"
android:contentDescription="#string/backup_layout_help_desc"
app:srcCompat="#drawable/ic_help" />
<TextView
android:id="#+id/invalid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/backup_layout_invalid"
android:textAllCaps="true"
android:textColor="#color/red" />
</LinearLayout>
<TextView
android:id="#+id/passwords"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginStart="10dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/amount" />
<Button
android:id="#+id/delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="8dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:background="#android:color/transparent"
android:text="#string/backup_layout_delete"
android:textColor="#color/red"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/importshare"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/passwords"
app:layout_constraintVertical_bias="1.0" />
<LinearLayout
android:id="#+id/importshare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="10dp"
android:orientation="horizontal"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/validity"
app:layout_constraintVertical_bias="1.0">
<Button
android:id="#+id/commit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#android:color/transparent"
android:text="Import"
android:textColor="#color/yellow" />
<ImageButton
android:id="#+id/share"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#android:color/transparent"
android:contentDescription="Share"
android:padding="10dp"
app:srcCompat="#drawable/ic_share" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>
And the ViewHolder (cut to show relevant parts):
public ViewHolder(View itemView, Context context) {
super(itemView);
Amount = itemView.findViewById(R.id.amount);
Date = itemView.findViewById(R.id.date);
Delete = itemView.findViewById(R.id.delete);
Divider = itemView.findViewById(R.id.divider);
ExpandCollapse = itemView.findViewById(R.id.expand);
Import = itemView.findViewById(R.id.commit);
ImportShare = itemView.findViewById(R.id.importshare);
Header = itemView.findViewById(R.id.header);
Help = itemView.findViewById(R.id.help);
Passwords = itemView.findViewById(R.id.passwords);
Share = itemView.findViewById(R.id.share);
Size = itemView.findViewById(R.id.size);
Title = itemView.findViewById(R.id.title);
Validity = itemView.findViewById(R.id.validity);
Title.setTypeface(Typeface.createFromAsset(context.getAssets(), "cera.otf"));
Header.setOnClickListener(this);
onClick(Header);
}
#Override
public void onClick(View v) {
if (expanded) collapse();
else expand();
}
public void expand() {
ExpandCollapse.animate().rotation(90).start();
Date.setVisibility(View.VISIBLE);
Size.setVisibility(View.VISIBLE);
Amount.setVisibility(View.VISIBLE);
Passwords.setVisibility(View.VISIBLE);
Divider.setVisibility(View.VISIBLE);
Validity.setVisibility(valid ? View.INVISIBLE : View.VISIBLE);
Delete.setVisibility(View.VISIBLE);
ImportShare.setVisibility(View.VISIBLE);
expanded = true;
}
public void collapse() {
ExpandCollapse.animate().rotation(0).start();
Date.setVisibility(View.GONE);
Size.setVisibility(View.GONE);
Amount.setVisibility(View.GONE);
Passwords.setVisibility(View.GONE);
Divider.setVisibility(View.GONE);
Validity.setVisibility(View.GONE);
Delete.setVisibility(View.GONE);
ImportShare.setVisibility(View.GONE);
expanded = false;
}

Kotlin
I had a very similar issue when attempting to hide elements when the keyboard is open
What would happen is when you open the keyboard you would get two resizes, One adjustment for the opening and the keyboard and another for setting the views to gone. The problem is the second adjustment would only occur when another element requests a layout so your screen would jump around very noticeably twice
When keyboard open
When you tap or move another UI element
I have found a solution for this, but only when Window soft input mode = adjust resize
See below
class MainActivity : AppCompatActivity() {
private var activityHeight = 0
private var keyboardOpen = false
private var mainScreen : ConstraintLayout? = null
private var infoText : TextView? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.main_screen)
mainScreen = findViewById(R.id.mainConstraintLayout)
infoText = findViewById(R.id.mainInfoText)
//...
/* Capture initial screen size */
this#MainActivity.window.decorView.doOnNextLayout {
val displayFrame : Rect = Rect()
this#MainActivity.window.decorView.getWindowVisibleDisplayFrame(displayFrame)
activityHeight = displayFrame.height()
}
/* Check for keyboard open/close */
this#MainActivity.window.decorView.addOnLayoutChangeListener { v, left, top, right, bottom, oldLeft, oldTop, oldRight, oldBottom ->
val drawFrame : Rect = Rect()
this#MainActivity.window.decorView.getWindowVisibleDisplayFrame(drawFrame)
val currentSize = drawFrame.height()
if(keyboardOpen){
keyboardOpen = currentSize < activityHeight
if (!keyboardOpen){
infoText?.visibility = View.VISIBLE
}
}else {
keyboardOpen = currentSize < activityHeight
if(keyboardOpen) {
infoText?.visibility = View.GONE
/* Request a new layout on your base layout so screen adjusts correctly */
mainScreen?.requestLayout()
}
}
}
}
}

How to use ConstraintSet for animation in Android with Java?

I find that there is a quick way to create animation with ConstraintSet for ConstrainLayout Activity. Faster than use TransitionManager for RelativeLayout
ConstraintSet use two xml file for an Activity. One for the first position and next one for the destination.
I want to create something like this:
https://media.giphy.com/media/2UwXdWEoLWe9iQMFIY/giphy.gif
But there is no clearly instruction show how to use it in Java. Anyone had done this can show me the source code or link to some post like that.
Thanks for reading the post.

This is possible with ConstraintSet. They key is two have two layouts one layout has ui elements of the screen and the other has elements on the screen. Now you can use TransitionManager with interpolator and duration of your choice and animate the layout changes.
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraint"
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="#181818"
tools:context=".MainActivity">
<ImageView
android:id="#+id/backgroundImage"
android:layout_width="0dp"
android:layout_height="0dp"
android:src="#drawable/mugello"
android:scaleType="centerCrop"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="JUNE 3, 2018"
app:layout_constraintRight_toRightOf="#+id/title"
app:layout_constraintBottom_toBottomOf="#+id/title"
android:textSize="12sp"
android:background="#d3d3d3"
android:paddingStart="16dp"
android:paddingEnd="16dp"
android:paddingTop="3dp"
android:paddingBottom="3dp"/>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
android:background="#F44336"
android:paddingBottom="8dp"
android:paddingEnd="24dp"
android:paddingStart="24dp"
android:paddingTop="8dp"
android:text="Mugello Circuit"
android:textColor="#FFFF"
android:textSize="45sp"
app:layout_constraintRight_toLeftOf="#+id/backgroundImage"
app:layout_constraintTop_toTopOf="parent" />
<View
android:id="#+id/fadeBackgroudView"
android:layout_width="wrap_content"
android:layout_height="90dp"
android:foreground="#drawable/gradient_variant"
app:layout_constraintBottom_toTopOf="#+id/description" />
<TextView
android:id="#+id/tap"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="12dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:text="Tap for info"
android:textSize="15sp"
android:textColor="#ffffff"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="The Mugello is a historic region and valley in northern Tuscany, in Italy. It is located to the north of the city of Florence and consists of the northernmost portion of the Metropolitan City of Florence. It is connected to the separate Santerno river valley by the Futa Pass."
android:textSize="22sp"
android:textColor="#FFFF"
android:background="#181818"
android:gravity="center"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:paddingBottom="8dp"
app:layout_constraintTop_toBottomOf="#+id/backgroundImage"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
</android.support.constraint.ConstraintLayout>
activity_main_detail.xml
<?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"
tools:context=".MainActivity">
<ImageView
android:id="#+id/backgroundImage"
android:layout_width="0dp"
android:layout_height="0dp"
android:scaleType="centerCrop"
android:src="#drawable/mugello"
app:layout_constraintBottom_toTopOf="#+id/description"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="48dp"
android:background="#F44336"
android:paddingBottom="8dp"
android:paddingEnd="24dp"
android:paddingStart="24dp"
android:paddingTop="8dp"
android:text="Mugello Circuit"
android:textColor="#FFFF"
android:textSize="45sp"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="JUNE 3, 2018"
app:layout_constraintRight_toRightOf="#+id/title"
app:layout_constraintTop_toBottomOf="#+id/title"
android:textSize="12sp"
android:background="#d3d3d3"
android:paddingStart="16dp"
android:paddingEnd="16dp"
android:paddingTop="3dp"
android:paddingBottom="3dp"/>
<View
android:id="#+id/fadeBackgroudView"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:foreground="#drawable/gradient"
app:layout_constraintBottom_toTopOf="#+id/description" />
<TextView
android:id="#+id/tap"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:text="Tap for info"
android:textSize="15sp"
android:textColor="#ffffff"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<TextView
android:id="#+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="The Mugello is a historic region and valley in northern Tuscany, in Italy. It is located to the north of the city of Florence and consists of the northernmost portion of the Metropolitan City of Florence. It is connected to the separate Santerno river valley by the Futa Pass."
android:textSize="22sp"
android:textColor="#FFFF"
android:gravity="center"
android:background="#181818"
android:paddingStart="8dp"
android:paddingEnd="8dp"
android:paddingBottom="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
</android.support.constraint.ConstraintLayout>
MainActivity.java
public class MainActivity extends AppCompatActivity {
private boolean show = false;
private ImageView backgroundImage;
private ConstraintLayout constraint;
private ConstraintSet constraintSet = new ConstraintSet();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
constraint = findViewById(R.id.constraint);
backgroundImage = findViewById(R.id.backgroundImage);
backgroundImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(show)
hideComponents(); // if the animation is shown, we hide back the views
else
showComponents() ;// if the animation is NOT shown, we animate the views
}
});
}
private void showComponents(){
show = true;
constraintSet.clone(this, R.layout.activity_main_detail);
Transition transition = new ChangeBounds();
transition.setInterpolator(new AnticipateOvershootInterpolator(1.0f));
transition.setDuration(1000);
TransitionManager.beginDelayedTransition(constraint, transition);
constraintSet.applyTo(constraint);
}
private void hideComponents(){
show = false;
constraintSet.clone(this, R.layout.activity_main);
Transition transition = new ChangeBounds();
transition.setInterpolator(new AnticipateOvershootInterpolator(1.0f));
transition.setDuration(1000);
TransitionManager.beginDelayedTransition(constraint, transition);
constraintSet.applyTo(constraint);
}
}
Here's a slide share on ConstraintLayout https://speakerdeck.com/camaelon/advanced-animations-and-constraintlayout

FloatingActionButton over EditText is not clickable

I have a FloatingActionButton over a big EditText. When I launch the app and try to tap on the FloatingActionButton the keyboard flips up because it takes the tap of the EditText.
What do I need to change in my code such that the FloatingActionButton is "above" the EditText?
I found that I need to add the FloatingActionButton last, what I already did, such that it is on top, but it didn't work. I also have implemented an onClickListener, which I suppose is not the problem.
Here a screenshot of my layout: Layout Screenshot
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="#drawable/listviewbackground"
android:backgroundTint="#80FFFFFF"
android:backgroundTintMode="src_over"
>
<EditText
android:id="#+id/itemTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="true"
android:paddingLeft="5dp"
android:paddingTop="5dp"
android:hint="What do you need to do?"
android:textAlignment="center"
android:textAppearance="?attr/textAppearanceListItem"
android:textSize="30dp"
android:background="#android:color/transparent"/>
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/itemTitle"
android:paddingTop="50dp"
android:gravity="center"
android:orientation="horizontal"
android:weightSum="2"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true">
<TextView
android:id="#+id/DueDate"
android:layout_width="0dp"
android:layout_height="39dp"
android:layout_marginEnd="64dp"
android:layout_marginStart="40dp"
android:layout_weight="1"
android:text="Due Date"
android:textAlignment="textStart"
android:textSize="24dp"
app:layout_constraintEnd_toStartOf="#+id/Date"
app:layout_constraintStart_toStartOf="parent"
tools:layout_editor_absoluteY="0dp" />
<TextView
android:id="#+id/Date"
android:layout_width="110dp"
android:layout_height="33dp"
android:layout_marginEnd="32dp"
android:layout_weight="1.2"
android:clickable="true"
android:focusable="false"
android:onClick="openCalendarView"
android:textAlignment="center"
android:textSize="18dp"
app:layout_constraintEnd_toEndOf="parent"
tools:layout_editor_absoluteY="0dp" />
<TextView
android:id="#+id/Important"
android:layout_width="149dp"
android:layout_height="39dp"
android:layout_marginBottom="8dp"
android:layout_marginStart="40dp"
android:layout_marginTop="8dp"
android:text="Is important?"
android:textAlignment="textStart"
android:textSize="24dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/DueDate"
app:layout_constraintVertical_bias="0.0" />
<Switch
android:id="#+id/switch1"
android:layout_width="51dp"
android:layout_height="40dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_toRightOf="#id/Important"
android:gravity="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.59"
app:layout_constraintStart_toEndOf="#+id/Important"
app:layout_constraintTop_toBottomOf="#+id/Date"></Switch>
</android.support.constraint.ConstraintLayout>
<EditText
android:id="#+id/Description"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="true"
android:layout_below="#id/constraintLayout1"
android:background="#android:color/transparent"
android:hint="Put in your description"
android:inputType="textPersonName"
android:nextFocusLeft="#id/Description"
android:nextFocusUp="#id/Description"
android:paddingTop="20dp"
android:textAlignment="center"
android:textSize="18dp" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingButtonDone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingRight="5dp"
android:paddingLeft="5dp"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:srcCompat="#drawable/check"
android:backgroundTint="#color/Green"
android:layout_alignBottom="#id/Description"
android:layout_alignParentRight="true"
android:focusable="true"
/>
</RelativeLayout>
Here my onClickListener
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_itemdetail, container, false);
//Getting Data and Creation of ToDoItem Object
FloatingActionButton floatingbutton = view.findViewById(R.id.floatingButtonDone);
floatingbutton.bringToFront();
floatingbutton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
//Getting Data
try {
//Do something
} catch (Exception e) {
Snackbar.make(view, "You need to set a Title", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
}
});

Put your FloatingActionButton inside a frame layout and set its gravity and padding accordingly where you want to show it.
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
<android.support.design.widget.FloatingActionButton
android:id="#+id/floatingButtonDone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:backgroundTint="#color/Green"
android:contentDescription="#null"
android:gravity="bottom|end"
android:padding="3dp"
android:src="#drawable/check" />
</FrameLayout>