Develop Reference

DialogFragment: constant height of the central view

I have a DialogFragment which consists of three parts, from up to down: the title, the central view which displays all the contents, and the bottom pane which holds the PositiveButton "OK":
public Dialog onCreateDialog(Bundle savedInstanceState)
{
FragmentActivity act = getActivity();
LayoutInflater inflater = act.getLayoutInflater();
AlertDialog.Builder builder = new AlertDialog.Builder(act);
// TITLE:
TextView title = (TextView) inflater.inflate(R.layout.dialog_title, null);
title.setText(R.string.updates);
builder.setCustomTitle(title);
// CENTRAL VIEW:
View view = inflater.inflate(R.layout.dialog_updates, null);
// ... customize it ...
builder.setView(view);
// POSITIVE BUTTON:
builder.setPositiveButton( R.string.ok, new DialogInterface.OnClickListener()
{
#Override
public void onClick(DialogInterface dialog, int which)
{
// something
}
});
}
The stuff that's shown by the central view is downloaded from the web. Initially, when a user pops up the dialog, the View shows just the "Downloading..." message:
When we get an answer, we create a ScrollView and keep adding vertically scrollable Panes to it like so:
(image above shows three such panes added so far)
The result is that the height of the dialog keeps changing, which is visually unpleasant.
So I really want to keep the height of the whole Dialog constant, let's say pinned to 3/4 of the height of the screen. Let's do it then:
public void onResume()
{
super.onResume();
Window window = getDialog().getWindow();
Context context = getContext();
if( window!=null && context!=null )
{
DisplayMetrics metrics = context.getResources().getDisplayMetrics();
final float height= metrics.heightPixels;
WindowManager.LayoutParams params = window.getAttributes();
params.width = WindowManager.LayoutParams.WRAP_CONTENT;
params.height = (int)(0.75f*height);
window.setAttributes(params);
}
}
Result:
This does kind of work, as you can see though - it works by enlarging the lower pane with the 'OK' button, rather than the central View.
How to fix this?
EDIT: here's my dialog_title.xml:
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="20sp"
android:gravity="center"
android:padding="10dp"/>

One workaround for this issue is to use ConstrainedLayout for your whole dialog like this:
fragment_dialog layout:
<?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"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="#+id/title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:padding="10dp"
android:text="Updates"
android:textSize="20sp"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/central_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:text="Downloading"
app:layout_constrainedHeight="true"
app:layout_constraintBottom_toTopOf="#id/positive_action"
app:layout_constraintHeight_percent="0.8"
app:layout_constraintTop_toBottomOf="#id/title" />
<androidx.appcompat.widget.AppCompatButton
android:id="#+id/positive_action"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_margin="8dp"
android:text="OK"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
You can change the percentage of your central view with app:layout_constraintHeight_percent="0.8"
DialogFragment class:
public class LoadingDialog extends DialogFragment {
#NonNull
#Override
public Dialog onCreateDialog(#Nullable Bundle savedInstanceState) {
FragmentActivity act = getActivity();
LayoutInflater inflater = act.getLayoutInflater();
View view = inflater.inflate(R.layout.fragment_dialog, null);
AlertDialog.Builder builder = new AlertDialog.Builder(act).setView(view);
// POSITIVE BUTTON:
view.findViewById(R.id.positive_action).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//something
}
});
return builder.create();
}
#Override
public void onResume() {
super.onResume();
getDialog().getWindow().setLayout(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT
);
}
}
And you will get this result:

How to use BottomSheetDialog?

I want to try BottomSheetDialog introduced in Android Support Library 23.2 but it doesn't seem to work correctly. Here is what the doc says:
While BottomSheetBehavior captures the persistent bottom sheet case, this release also provides a BottomSheetDialog and
BottomSheetDialogFragment to fill the modal bottom sheets use case.
Simply replace AppCompatDialog or AppCompatDialogFragment with their
bottom sheet equivalents to have your dialog styled as a bottom
sheet."
So I changed my AppCompatDialog to BottomSheetDialog:
package my.package.ui.dialog;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.design.widget.BottomSheetDialog;
import my.package.R;
public class AccountActionsDialog extends BottomSheetDialog {
public AccountActionsDialog(Context context) {
super(context);
if (context instanceof Activity) {
setOwnerActivity((Activity) context);
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutInflater().inflate(R.layout.dialog_account_actions, null));
}
}
Here is my layout file:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ff0000"
android:padding="16dp"
android:text="Delete account"
android:textColor="#ffffff" />
</LinearLayout>
Then I use the following code in my Activity:
new AccountActionsDialog(this).show();
My screen becomes dimmed but the content of my dialog is not visible. Any thoughts on what might be missing? It works fine when I use AppCompatDialog instead.

Instead of having a separate class, you can simply create an instance for BottomSheetDialog in your Activity/Fragment like following and you can use it. It is very easier and simpler I think.
val dialog = BottomSheetDialog(this)
val bottomSheet = layoutInflater.inflate(R.layout.bottom_sheet, null)
bottomSheet.buttonSubmit.setOnClickListener { dialog.dismiss() }
dialog.setContentView(bottomSheet)
dialog.show()

This is the layout file of BottomSheetDialog.
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:soundEffectsEnabled="false">
<FrameLayout
android:id="#+id/design_bottom_sheet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
app:layout_behavior="#string/bottom_sheet_behavior"
style="?attr/bottomSheetStyle"/>
</android.support.design.widget.CoordinatorLayout>
Your content view is inside the view design_bottom_sheet, it will be positioned center vertically by CoordinatorLayout, and BottomSheetBehavior will offset it.
mParentHeight = parent.getHeight();
mMinOffset = Math.max(0, mParentHeight - child.getHeight());
mMaxOffset = mParentHeight - mPeekHeight;
if (mState == STATE_EXPANDED) {
ViewCompat.offsetTopAndBottom(child, mMinOffset);
} else if (mHideable && mState == STATE_HIDDEN) {
ViewCompat.offsetTopAndBottom(child, mParentHeight);
} else if (mState == STATE_COLLAPSED) {
ViewCompat.offsetTopAndBottom(child, mMaxOffset);
}
It intented to positon design_bottom_sheet at mMaxOffset, but actually the initial getTop of the child view is not 0, but (mParentHeight - childHeight) / 2, so you view if offset more than the desired offset.
Find the view design_bottom_sheet and set its gravity to Gravity.TOP | Gravity.CENTER_HORIZONTAL will fix it. But, if the childHeight is less than mPeekHeight, there will be blank area below you content view.
However, if peekHeight > childHeight, the mMaxOffset will less than mMinOffset, which will cause weird behavior.
Maybe the code should be changed to
mMaxOffset = Math.max((mParentHeight - mPeekHeight), mMinOffset);
insted of
mMaxOffset = mParentHeight - child.getHeight();

Here's the issue on code.google.com https://code.google.com/p/android/issues/detail?id=201793
An issue some users are seeing boils down to the FrameLayout that wraps our content view being centered vertically. The BottomSheetBehavior only works if this view is top aligned. I haven't figured out what causes the FrameLayout to become centered vertically yet, but here's a possible workaround:
View contentView = ...
// You may have to measure your content view first.
dialog.setContentView(contentView);
// Change this to a percentage or a constant, whatever you want to do.
// The default is 1024 - any views smaller than this will be pulled off
// the bottom of the screen.
float peekHeight = contentView.getMeasuredHeight();
View parent = (View)contentView.getParent();
BottomSheetBehavior behavior = BottomSheetBehavior.from(parent);
behavior.setPeekHeight(peekHeight);
CoordinatorLayout.LayoutParams layoutParams =
(CoordinatorLayout.LayoutParams)parent.getLayoutParams();
layoutParams.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;

I was expriencing the same issue, dimmed background and content not visible. Here is how I managed to workaround it by setting the content view in setupDialog() hidden method.
public class CustomBottomSheetDialogFragment extends BottomSheetDialogFragment {
private TextView mOffsetText;
private TextView mStateText;
private BottomSheetBehavior.BottomSheetCallback mBottomSheetBehaviorCallback = new BottomSheetBehavior.BottomSheetCallback() {
#Override
public void onStateChanged(#NonNull View bottomSheet, int newState) {
setStateText(newState);
if (newState == BottomSheetBehavior.STATE_HIDDEN) {
dismiss();
}
}
#Override
public void onSlide(#NonNull View bottomSheet, float slideOffset) {
setOffsetText(slideOffset);
}
};
private LinearLayoutManager mLinearLayoutManager;
private ApplicationAdapter mAdapter;
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
return super.onCreateDialog(savedInstanceState);
}
#Override
public void onViewCreated(View contentView, #Nullable Bundle savedInstanceState) {
super.onViewCreated(contentView, savedInstanceState);
}
#Override
public void setupDialog(Dialog dialog, int style) {
super.setupDialog(dialog, style);
View contentView = View.inflate(getContext(), R.layout.bottom_sheet_dialog_content_view, null);
dialog.setContentView(contentView);
mBottomSheetBehavior = BottomSheetBehavior.from(((View) contentView.getParent()));
if (mBottomSheetBehavior != null) {
mBottomSheetBehavior.setBottomSheetCallback(mBottomSheetBehaviorCallback);
}
mOffsetText = (TextView) contentView.findViewById(R.id.offsetText);
mStateText = (TextView) contentView.findViewById(R.id.stateText);
}
}
And the layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/offsetText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#android:color/black" />
<TextView
android:id="#+id/stateText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#android:color/black" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>

It started to work when I set fixed height for my TextView (200dp), although for some height values it still behaves incorrectly. Obviously it's an issue of support lib. There are already few reports related to BottomSheetDialog in the bug tracker:
https://code.google.com/p/android/issues/detail?id=201793&sort=-opened&colspec=ID%20Status%20Priority%20Owner%20Summary%20Stars%20Reporter%20Opened
https://code.google.com/p/android/issues/detail?id=201826

Adjusting DialogFragment Width and Height

I have problem with DialogFragmnt's Width and Height. Here is my class representing DialogFragmetn:
public class RecipeAddDialogFragment extends DialogFragment {
private ArrayList<RecipeDialogItem> recipeDialogItems;
private RecipeAddDialogAdapter recipeDialogAdapter;
private String recipeUniqueId;
private CoordinatorLayout coordinatorLayout;
private RecipeAddDialogFragment recipeDialogFragment;
#Override
public void onStart() {
super.onStart();
if (getDialog() == null) {
return;
}
int dialogWidth = 600;
int dialogHeight = 300;
getDialog().getWindow().setLayout(dialogWidth, dialogHeight);
getDialog().setTitle(getString(R.string.recipe_dialog_title));
}
#Override
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
setStyle(DialogFragment.STYLE_NORMAL, R.style.AppTheme_DialogFragment);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.dialog_fragment, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
recipeDialogItems = new ArrayList<>();
RecyclerView dialogRecyclerView = (RecyclerView) view.findViewById(
R.id.dialog_recycler_view);
recipeDialogAdapter = new RecipeAddDialogAdapter(getContext(), recipeDialogItems,
R.layout.recipe_dialog_item);
recipeDialogAdapter.setRuidClRdf(recipeUniqueId, coordinatorLayout, recipeDialogFragment);
dialogRecyclerView.setHasFixedSize(true);
dialogRecyclerView.setAdapter(recipeDialogAdapter);
dialogRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
fillRecipeDialogArray();
}
private void fillRecipeDialogArray() {
String name = getString(R.string.add_to_favourites);
int icon = R.drawable.ic_heart_48dp;;
RecipeDialogItem dialogItem = new RecipeDialogItem();
dialogItem.setRowIcon(icon);
dialogItem.setRowOption(name);
recipeDialogItems.add(dialogItem);
recipeDialogAdapter.notifyDataSetChanged();
}
public void setReferences(String recipeUniqueId, CoordinatorLayout coordinatorLayout,
RecipeAddDialogFragment recipeDialogFragment) {
this.recipeUniqueId = recipeUniqueId;
this.coordinatorLayout = coordinatorLayout;
this.recipeDialogFragment = recipeDialogFragment;
}
}
Here is .xml which I infalte in this DialogFragment:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center|left"
android:padding="16dp"
android:orientation="horizontal"
android:clickable="true"
android:background="?android:attr/selectableItemBackground">
<!-- Option Icon -->
<ImageView
android:id="#+id/recipe_dialog_option_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="4dp"
android:tint="#color/primary" />
<!-- Text Option -->
<TextView
android:id="#+id/recipe_dialog_option_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp"
android:textColor="#color/primary_text" />
</LinearLayout>
The problem is that when I set it's size to 600 x 300 it is displayed fine in my 1280x720 device, but for example when my friend displays it on 1920x1080 resolution dialog is wrapped and only title is shown. List is wrapped and is not entire shown. Any idea how can I automaticly set it's size to fit every display and show entire dialog which is wrapped to it's content?
Edit
I have figured out to adjust the width of the DialogFragment to it's content like this:
getDialog().getWindow().setLayout(WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT);
getDialog().setTitle(getString(R.string.recipe_dialog_title));
However height is not working properly :/

In DialogFragment.onResume():
int width = getResources().getDimensionPixelSize(R.dimen.popup_width);
int height = getResources().getDimensionPixelSize(R.dimen.popup_height);
getDialog().getWindow().setLayout(width, height);
In the layout for the dialog:
android:layout_width="match_parent"
android:layout_height="match_parent"
Can take whole screen with:
getDialog().getWindow().setLayout(
getResources().getDisplayMetrics().widthPixels,
getResources().getDisplayMetrics().heightPixels
);
Hope that helps
Found the idea here How to set DialogFragment's width and height?

Android: Resize only parts of view with soft keyboard on screen

I have a view with a Edittext field on top of an ImageView. When the keyboard comes up I want the window to resize so that EditText is no longer hidden by the keyboard. In the AndroidManifest file I declared android:windowSoftInputMode="adjustResize" and the screen is resized but the issue is that I want the ImageView to not be re-sized.
How can I make the ImageView unaffected?
Could I inflate an additional layout with just the ImageView or will the resize still affect it?

The full solution involves a few key points
Use RelativeLayout, so that Views can be setup to overlap one another
Align the EditText with the bottom of the Windows using android:layout_alignParentBottom="true"
Use android:windowSoftInputMode="adjustResize" in your manifest, so that the bottom of the Window changes when the keyboard pops up (as you mentioned)
Put the ImageView inside a ScrollView so that the ImageView can be larger than the Window, and disable scrolling on the ScrollView by using ScrollView#setEnabled(false)
Here is the layout file
<RelativeLayout
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"
tools:context="com.so3.MainActivity">
<ScrollView
android:id="#+id/scroll"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/stickfigures"/>
</ScrollView>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#android:color/holo_blue_bright"
android:text="Please enter text"
android:textSize="40sp"
android:gravity="center_horizontal"/>
</RelativeLayout>
Here is my Activity
package com.so3;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ScrollView;
public class MainActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ScrollView sv = (ScrollView)findViewById(R.id.scroll);
sv.setEnabled(false);
}
}
My AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.so3" >
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.so3.MainActivity"
android:windowSoftInputMode="adjustResize"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Screen shots of my solution

Adding ScrollView was making my image scrollable which I wanted to avoid so I used this samples-keyboardheight calculator and onKeyboardHeightChanged recalculated position of the bottom Edittext placed it above Keyboard and used this flag in Manifest.
android:windowSoftInputMode="adjustNothing|stateHidden"
Here is KeyboardHeightProvider :
import android.app.Activity;
import android.content.res.Configuration;
import android.graphics.Point;
import android.graphics.Rect;
import android.graphics.drawable.ColorDrawable;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.WindowManager.LayoutParams;
import android.widget.PopupWindow;
/**
* The keyboard height provider, this class uses a PopupWindow
* to calculate the window height when the floating keyboard is opened and closed.
*/
public class KeyboardHeightProvider extends PopupWindow {
/** The tag for logging purposes */
private final static String TAG = "sample_KeyboardHeightProvider";
/** The keyboard height observer */
private KeyboardHeightObserver observer;
/** The cached landscape height of the keyboard */
private int keyboardLandscapeHeight;
/** The cached portrait height of the keyboard */
private int keyboardPortraitHeight;
/** The view that is used to calculate the keyboard height */
private View popupView;
/** The parent view */
private View parentView;
/** The root activity that uses this KeyboardHeightProvider */
private Activity activity;
/**
* Construct a new KeyboardHeightProvider
*
* #param activity The parent activity
*/
public KeyboardHeightProvider(Activity activity) {
super(activity);
this.activity = activity;
LayoutInflater inflator = (LayoutInflater) activity.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
this.popupView = inflator.inflate(R.layout.popupwindow, null, false);
setContentView(popupView);
setSoftInputMode(LayoutParams.SOFT_INPUT_ADJUST_RESIZE | LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED);
parentView = activity.findViewById(android.R.id.content);
setWidth(0);
setHeight(LayoutParams.MATCH_PARENT);
popupView.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
if (popupView != null) {
handleOnGlobalLayout();
}
}
});
}
/**
* Start the KeyboardHeightProvider, this must be called after the onResume of the Activity.
* PopupWindows are not allowed to be registered before the onResume has finished
* of the Activity.
*/
public void start() {
if (!isShowing() && parentView.getWindowToken() != null) {
setBackgroundDrawable(new ColorDrawable(0));
showAtLocation(parentView, Gravity.NO_GRAVITY, 0, 0);
}
}
/**
* Close the keyboard height provider,
* this provider will not be used anymore.
*/
public void close() {
this.observer = null;
dismiss();
}
/**
* Set the keyboard height observer to this provider. The
* observer will be notified when the keyboard height has changed.
* For example when the keyboard is opened or closed.
*
* #param observer The observer to be added to this provider.
*/
public void setKeyboardHeightObserver(KeyboardHeightObserver observer) {
this.observer = observer;
}
/**
* Get the screen orientation
*
* #return the screen orientation
*/
private int getScreenOrientation() {
return activity.getResources().getConfiguration().orientation;
}
/**
* Popup window itself is as big as the window of the Activity.
* The keyboard can then be calculated by extracting the popup view bottom
* from the activity window height.
*/
private void handleOnGlobalLayout() {
Point screenSize = new Point();
activity.getWindowManager().getDefaultDisplay().getSize(screenSize);
Rect rect = new Rect();
popupView.getWindowVisibleDisplayFrame(rect);
// REMIND, you may like to change this using the fullscreen size of the phone
// and also using the status bar and navigation bar heights of the phone to calculate
// the keyboard height. But this worked fine on a Nexus.
int orientation = getScreenOrientation();
int keyboardHeight = screenSize.y - rect.bottom;
if (keyboardHeight == 0) {
notifyKeyboardHeightChanged(0, orientation);
}
else if (orientation == Configuration.ORIENTATION_PORTRAIT) {
this.keyboardPortraitHeight = keyboardHeight;
notifyKeyboardHeightChanged(keyboardPortraitHeight, orientation);
}
else {
this.keyboardLandscapeHeight = keyboardHeight;
notifyKeyboardHeightChanged(keyboardLandscapeHeight, orientation);
}
}
/**
*
*/
private void notifyKeyboardHeightChanged(int height, int orientation) {
if (observer != null) {
observer.onKeyboardHeightChanged(height, orientation);
}
}
public interface KeyboardHeightObserver {
void onKeyboardHeightChanged(int height, int orientation);
}
}
popupwindow.xml :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/popuplayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/transparent"
android:orientation="horizontal"/>
Here is MainActivity.java :
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewGroup;
public class MainActivity extends AppCompatActivity implements KeyboardHeightProvider.KeyboardHeightObserver {
private KeyboardHeightProvider keyboardHeightProvider;
private ViewGroup relativeView;
private float initialY;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
keyboardHeightProvider = new KeyboardHeightProvider(this);
relativeView = findViewById(R.id.bottomEditor);
relativeView.post(() -> initialY = relativeView.getY());
View view = findViewById(R.id.activitylayout);
view.post(() -> keyboardHeightProvider.start());
}
#Override
public void onKeyboardHeightChanged(int height, int orientation) {
if(height == 0){
relativeView.setY(initialY);
relativeView.requestLayout();
}else {
float newPosition = initialY - height;
relativeView.setY(newPosition);
relativeView.requestLayout();
}
}
#Override
public void onPause() {
super.onPause();
keyboardHeightProvider.setKeyboardHeightObserver(null);
}
#Override
public void onResume() {
super.onResume();
keyboardHeightProvider.setKeyboardHeightObserver(this);
}
#Override
public void onDestroy() {
super.onDestroy();
keyboardHeightProvider.close();
}
}
activity_main.xml :
<?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:id="#+id/activitylayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:adjustViewBounds="true"
android:scaleType="fitCenter"
/>
<RelativeLayout
android:id="#+id/bottomEditor"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
>
<EditText
android:id="#+id/edit_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="4dp"
android:layout_toStartOf="#+id/btn_send"
android:hint="Add caption"
android:paddingBottom="12dp"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:paddingStart="8dp"
android:paddingTop="12dp"
/>
<ImageButton
android:id="#+id/btn_send"
android:layout_width="48dp"
android:layout_height="48dp"
android:layout_alignBottom="#+id/edit_message"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginEnd="4dp"
android:layout_marginRight="4dp"
app:srcCompat="#android:drawable/ic_menu_send"
/>
</RelativeLayout>
</RelativeLayout>
P.S. : Keyboard height calculation code is copied from siebeprojects
Here is demo example app of implementation.

final View activityRootView = findViewById(R.id.mainScroll);
activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int heightView = activityRootView.getHeight();
int widthView = activityRootView.getWidth();
if (1.0 * widthView / heightView > 1) {
Log.d("keyboarddddd visible", "no");
relativeLayoutForImage.setVisibility(View.GONE);
relativeLayoutStatic.setVisibility(View.GONE);
//Make changes for Keyboard not visible
} else {
Log.d("keyboarddddd visible ", "yes");
relativeLayoutForImage.setVisibility(View.VISIBLE);
relativeLayoutStatic.setVisibility(View.VISIBLE);
//Make changes for keyboard visible
}
}
});

For me i did not want to assume that keyboards heights are a certain measurement. Whatever view your concerned about make a onTouchListener and then do this:
setOnTouchListener(new OnTouchListener() {
Runnable shifter=new Runnable(){
public void run(){
try {
int[] loc = new int[2];
//get the location of someview which gets stored in loc array
findViewById(R.id.someview).getLocationInWindow(loc);
//shift so user can see someview
myscrollView.scrollTo(loc[0], loc[1]);
}
catch (Exception e) {
e.printStackTrace();
}
}}
};
Rect scrollBounds = new Rect();
View divider=findViewById(R.id.someview);
myscollView.getHitRect(scrollBounds);
if (!divider.getLocalVisibleRect(scrollBounds)) {
// the divider view is NOT within the visible scroll window thus we need to scroll a bit.
myscollView.postDelayed(shifter, 500);
}
});
//essentially we make a runnable that scrolls to a new location of some view that you WANT visible on the screen. you execute that runnable only if its not within the scrollviews bounds (its not on the screen). This way it shifts the scrollview to the referenced view (in my case 'someview' which was a line divider).

In my opinion the easiest way to do this it is this combination of the two changes:
android:windowSoftInputMode="adjustResize"
in your AndroidManifest.xml
+
getWindow().setBackgroundDrawable(your_image_drawable);
in your activity in #onCreate() method
It works for me.

The best solution is to use a DialogFragment
Show dialog
DialogFragment.show(getSupportFragmentManager(), DialogFragment.TAG);
Full screen
#NonNull
#Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Dialog dialog = new Dialog(getActivity(), R.style.MainDialog) { //set the style, the best code here or with me, we do not change
#Override
public void onBackPressed() {
super.onBackPressed();
getActivity().finish();
}
};
return dialog;
}
Style
<style name="MainDialog" parent="#android:style/Theme.Dialog">
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:windowFrame">#null</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsFloating">false</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowContentOverlay">#null</item>
<item name="android:background">#null</item>
<item name="android:windowAnimationStyle">#null</item>
</style>
Layout Activity
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
android:background="#color/black">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
Layout dialog fragment
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/transparent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
android:background="#color/background_transparent_60"
android:gravity="center_vertical">
<EditText
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="#dimen/spacing_1_8dp"
android:layout_marginLeft="#dimen/spacing_1_8dp"
android:layout_marginRight="#dimen/spacing_1_8dp"
android:layout_weight="1"
android:hint="#string/comment_entry_hint"
android:inputType="textMultiLine"
android:maxLines="4"
android:textColor="#color/white"
android:textColorHint="#color/secondary_text_hint"
android:textSize="#dimen/text_2_12sp" />
<ImageView
android:layout_width="#dimen/livestream_comment_height"
android:layout_height="#dimen/livestream_comment_height"
android:layout_margin="#dimen/spacing_1_8dp"
android:src="#drawable/ic_send" />
</LinearLayout>
</RelativeLayout>

The solution that worked for me was in AndroidManifest.xml in that activity tag just put
android:windowSoftInputMode="stateHidden|adjustResize|adjustNothing"
All set..Hope this will work for you.

final View activityRootView = findViewById(R.id.mainScroll);
activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int heightView = activityRootView.getHeight();
int widthView = activityRootView.getWidth();
if (1.0 * widthView / heightView > 1) {
Log.d("keyboarddddd visible", "no");
relativeLayoutForImage.setVisibility(View.GONE);
relativeLayoutStatic.setVisibility(View.GONE);
//Make changes for Keyboard not visible
//relativeLayoutForImage.setVisibility(View.VISIBLE);
//relativeLayoutStatic.setVisibility(View.VISIBLE);
} else {
Log.d("keyboarddddd visible ", "yes");
relativeLayoutForImage.setVisibility(View.VISIBLE);
relativeLayoutStatic.setVisibility(View.VISIBLE);
//Make changes for keyboard visible
// relativeLayoutForImage.setVisibility(View.GONE);
//relativeLayoutStatic.setVisibility(View.GONE);
}
}
});

findViewById usage in View

I'm struggling with a problem for a few days already and couldn't find solution to my problem so far.
I have two classes:
- StartActivity extends Activity
- TimeGraphView extends SurfaceView
What I want to achieve is to add dynamically buttons from within TimeGraphView to another view (LinearLayout).
To do so wanted to get that LinearLayout inside TimeGraphView with findViewById() but it returns null, and it should because I call it in TimeGraphView not in root element where I used setContentView();
So my question is how can I add button dynamically from custom view level to another view.
And my code:
public class StartActivity extends Activity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.time_graph);
LinearLayout layout = (LinearLayout) this.findViewById(R.id.TimeGraphLayout);
//here I can add button but it's not what I want
}
}
and ...
public class TimeGraphView extends SurfaceView implements SurfaceHolder.Callback, Runnable {
public TimeGraphView(Context context) {
super(context);
}
public TimeGraphView(Context context, AttributeSet set) {
super(context, set);
}
public TimeGraphView(Context context, AttributeSet set, int arg) {
super(context, set, arg);
}
public void run() {
while (run) {
if (something) {
LinearLayout layout = (LinearLayout) findViewById(R.id.TimeGraphLayout);
if (layout != null) {
Button button = new Button(context);
button.setText(text);
layout.addView(button);
} else {
Log.e("TimeGraphView", "TimeGraphLayout is null");
//and "layout" is always null and that's the problem ;(
}
}
}
}
}
... and my XML
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/TimeGraphRootLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<HorizontalScrollViewa
android:id="#+id/TimeGraphPanel"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:id="#+id/TimeGraphLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" />
</HorizontalScrollView>
<my.package.TimeGraphView
android:id="#+id/TimeGraphChart"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>

You cannot use it in that way. If you add a root element Linearlayout and reference that in addition it might work. If you want to get the TimeGraphLayout class though:
TimeGraphView layout = (TimeGraphView) findViewById(R.id.TimeGraphLayout);
setContentView(layout);
The original way you did it will not work because TimeGraphView is not a LinearLayout