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setVisibility on ProgressBar in Android

I have the following progress bar in my Android application:
<ProgressBar
android:id="#+id/progressBar"
android:layout_width="200sp"
android:layout_height="200sp"
android:layout_marginTop="60sp"
android:visibility="gone"
android:indeterminate="true"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
I also have an ImageView with an image in it. What I want to do is while I'm making a call to an API, make the image invisible and show the ProgressBar in its place, then when it ends show the image again and hide the ProgressBar. However, this does not work:
searchBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ProgressBar progressBar = findViewById(R.id.progressBar);
ImageView image = findViewById(R.id.image);
image.setVisibility(View.INVISIBLE);
progressBar.setVisibility(View.VISIBLE);
Thread thread = new Thread(new Runnable() {
#Override
public void run() {
makeRequest();
}
});
thread.start();
try {
thread.join();
progressBar.setVisibility(View.INVISIBLE);
image.setVisibility(View.VISIBLE);
} catch (InterruptedException e) {
}
}
});
I've tried various combinations with View.INVISIBLE and View.GONE, nothing works. I've also searched through similar questions on here but none of them answers my question.
I thought maybe it's because it disappears and reappears so quickly I don't notice it, but even if I do Thread.sleep() the progress bar still doesn't show up.
What am I doing wrong?

Calling thread.join() within OnClickListener blocks the UI thread and hence block any UI updates.
To fix your code, you can remove thread.join() and put progressBar.setVisibility(View.INVISIBLE);image.setVisibility(View.VISIBLE); within run() after makeRequest() but warp with runOnUiThread()
searchBtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ProgressBar progressBar = findViewById(R.id.progressBar);
ImageView image = findViewById(R.id.image);
image.setVisibility(View.INVISIBLE);
progressBar.setVisibility(View.VISIBLE);
Thread thread = new Thread(new Runnable() {
#Override
public void run() {
makeRequest();
runOnUiThread(new Runnable() {
#Override
public void run() {
progressBar.setVisibility(View.INVISIBLE);
image.setVisibility(View.VISIBLE);
}
});
}
});
thread.start();
}
});

How to disable onTouch of other items in Recyclerview? [duplicate]

I am using Floating Action Button. I want to disable Recyclerview Items from Clicking when i press FAB button. I tried this method but not working setClickable(true);
My Layout
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:fab="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="#fff"
tools:context="com.hartwintech.socialchat.activity.IconTabsActivity">
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
>
</android.support.v7.widget.RecyclerView>
<com.github.clans.fab.FloatingActionMenu
android:id="#+id/floatmenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_marginBottom="60dp"
android:layout_marginRight="16dp"
fab:fab_showAnimation="#anim/show_from_bottom"
fab:fab_hideAnimation="#anim/hide_to_bottom"
fab:menu_labels_style="#style/MenuLabelsStyle"
fab:menu_shadowColor="#444"
fab:menu_colorNormal="#FFB805"
fab:menu_colorPressed="#F2AB00"
fab:menu_colorRipple="#D99200"/>
</RelativeLayout>
Java Class
floatMenu.setOnMenuToggleListener(new FloatingActionMenu.OnMenuToggleListener() {
#Override
public void onMenuToggle(boolean opened) {
if (opened) {
final int color = R.color.transp;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
mrecyclerview.setClickable(false);
mrecyclerview.setEnabled(false);
mrecyclerview.setForeground(new ColorDrawable(ContextCompat.getColor(getContext(), color)));
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
mrecyclerview.setClickable(true);
mrecyclerview.setEnabled(true);
mrecyclerview.setForeground(null);
}
}
}
});

You can add a simple boolean to your adapter like this:
public boolean isClickable = true;
and set it in your fab-click:
mAdapter.isClickable = true/false;
And within your OnClickListener in the Adapter, only act when it is clickable:
public void onClick(View view) {
if(!isClickable)
return;
// do your click stuff
}

To disable RecyclerView, follow below steps:
1. Add following view into your layout file,
<View
android:id="#+id/viewDisableLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#40000000"
android:clickable="true"
android:focusable="true"
android:visibility="gone"/>
2. Set View Visibility `View.VISIBLE when you want to disable RecyclerView else

You can simply use recursion to disable/enable clicks on view
public static void setClickable(View view, boolean clickable) {
if (view != null) {
if (view instanceof ViewGroup) {
ViewGroup viewGroup = (ViewGroup) view;
for (int i = 0; i < viewGroup.getChildCount(); i++) {
setClickable(viewGroup.getChildAt(i), clickable);
}
}
view.setClickable(clickable);
}
}

Björn Kechel's answer helps me. As he said I just added Boolean. When i click the fab menu the boolean is activated. Then have to write the condition on mrecyclerview.addOnItemTouchListenerJava Class
public Boolean fabClick = false;
floatMenu.setOnMenuToggleListener(new FloatingActionMenu.OnMenuToggleListener() {
#Override
public void onMenuToggle(boolean opened) {
if (opened) {
final int color = R.color.transp;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
fabClick = true;
mrecyclerview.setClickable(false);
mrecyclerview.setEnabled(false);
mrecyclerview.setForeground(new ColorDrawable(ContextCompat.getColor(getContext(), color)));
}
} else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
fabClick = false;
mrecyclerview.setClickable(true);
mrecyclerview.setEnabled(true);
mrecyclerview.setForeground(null);
}
}
}
});
mrecyclerview.addOnItemTouchListener(new RecyclerTouchListener(getActivity(), mrecyclerview, new RecyclerTouchListener.ClickListener() {
#Override
public void onClick(View view, int position) {
if(!fabClick) {
android.support.v4.app.FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.setCustomAnimations(R.anim.fragment_anim_start, R.anim.fragment_anim_stop);
Intent i = new Intent(getActivity(), Group_Chat_Screen.class);
startActivity(i);
}
}

You need to set the click listener to every FloatingActionButton.
see this issue on library

Working solution with RecyclerView.OnItemTouchListener:
#SuppressLint("ClickableViewAccessibility")
#BindingAdapter("itemsClickable")
fun setRecyclerViewClickable(view: RecyclerView, clickable: Boolean) {
view.isEnabled = clickable
if (!clickable) {
val itemTouchListener = object : RecyclerView.OnItemTouchListener {
override fun onTouchEvent(rv: RecyclerView?, e: MotionEvent?) {
}
override fun onInterceptTouchEvent(rv: RecyclerView?, e: MotionEvent?): Boolean {
return rv?.isEnabled == false
}
override fun onRequestDisallowInterceptTouchEvent(disallowIntercept: Boolean) {
}
}
view.addOnItemTouchListener(itemTouchListener)
view.tag = itemTouchListener
} else {
(view.tag as? RecyclerView.OnItemTouchListener)?.let {
view.requestDisallowInterceptTouchEvent(true)
view.removeOnItemTouchListener(it)
}
}
}

Java
recyclerView.setOnTouchListener((view1, motionEvent) -> true );
Kotlin
reyclerView.setOnTouchListener { v, event -> true }
this solution disables all touch events

You can disable the touch of recyclerview
recyclerView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
return true;
}
});

In the xml file, set the layout_width and layout_height for FloatingActionMenu as match_parent and set clickable as false :
android:layout_width="match_parent "
android:layout_height="match_parent "
android:clickable="false"
In your java class,
floatMenu.setOnMenuToggleListener(new FloatingActionMenu.OnMenuToggleListener() {
#Override
public void onMenuToggle(boolean opened) {
if (opened) {
floatMenu.setClickable(true);
} else {
floatMenu.setClickable(false);
}
}
});
This should work.

I solved this problem with very simple logic. This will prevent double click on single item and multiple items of RecyclerView as well.
Declare a Variable in your Activity.
private long mLastClickTime = 0;
Then use in any OnClickListener.
#Override
public void onClick(View v) {
if(SystemClock.elapsedRealtime() - mLastClickTime < 1000){//You can reclick after 1 second
return;//Before 1 seconds from first click this onclick will return from here
}
mLastClickTime = SystemClock.elapsedRealtime();
//Do stuff here
}
Actually I found this solution in stackover flow when I was searching for preventing double click on Button. I'm writing this line to acknowledge that actual answer is posted by someone ( Unfortunatly I'm unable to find that answer to link his/her answer here.)
Hope this will solve your problem.:)

Why is my Android ImageView empty (loading up through Uri, Bitmap or using Picasso)

I have a fragment to display a queue of either videos of images. The video I display in the VideoView works fine, it replays, it's golden. But the images I put in the ImageView just appear invisible. I tried loading them through Uri, by reading a Bitmap, now they're set up with Picasso, and none of it fixed it. The AssetObtainer you'll see in MultimediaPlayer works with both sound files and videos so far, so I highly doubt it has an issue with images. Here's the code:
MultimediaPlayer.java :
public class MultimediaPlayer extends Fragment
{
VideoView mVideoView;
ImageView mImageView;
MultimediaViewModel mMultimediaViewModel;
Play mPlayThread;
Activity mActivity;
AssetObtainer assetObtainer = new AssetObtainer();
public Long mTutorialId;
public List<Multimedia> multimedias = new LinkedList<>();
#Override
public View onCreateView(#NotNull LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
return inflater.inflate(R.layout.fragment_multimedia_player, container, false);
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState)
{
mActivity = requireActivity();
mMultimediaViewModel = new ViewModelProvider(this).get(MultimediaViewModel.class);
mVideoView = view.findViewById(R.id.video_embed);
mImageView = view.findViewById(R.id.image_embed);
getPlayer(0);
}
private void getPlayer(int position)
{
if(mPlayThread != null) {
mPlayThread.interrupt();
position++;
}
if(!multimedias.isEmpty()) {
mPlayThread = new Play(multimedias.get(position));
mPlayThread.start();
}
}
private class Play extends Thread
{
private final Multimedia currentMedia;
Play(Multimedia media){
currentMedia = media;
}
#Override
public void run()
{
int position = currentMedia.getPosition();
int displayTime = currentMedia.getDisplayTime();
boolean loopBool = currentMedia.getLoop();
if(currentMedia.getType()) {
mActivity.runOnUiThread(() -> {
mImageView.setVisibility(View.VISIBLE);
mVideoView.setVisibility(View.GONE);
try {
Picasso.get().load(assetObtainer.getFileFromAssets(requireContext(), currentMedia.getFullFileName())).into(mImageView);
} catch (IOException ignored) {}
});
if(displayTime>0) {
try {
sleep(displayTime);
if(!loopBool) multimedias.remove(currentMedia);
if(position<multimedias.size()-1) {
getPlayer(position);
} else getPlayer(0);
} catch (InterruptedException e) {
mActivity.runOnUiThread(() -> mImageView.setVisibility(View.GONE));
interrupt();
}
}
} else {
mActivity.runOnUiThread(() -> {
mVideoView.setVisibility(View.VISIBLE);
mImageView.setVisibility(View.GONE);
try {
mVideoView.setVideoURI(Uri.fromFile(assetObtainer.getFileFromAssets(requireContext(), currentMedia.getFullFileName())));
} catch (IOException ignored) {}
if(loopBool && multimedias.size()==1) mVideoView.setOnCompletionListener(v->getPlayer(position-1));
mVideoView.start();
});
}
}
}
#Override
public void onPause()
{
if(mPlayThread!=null){
mPlayThread.interrupt();
}
super.onPause();
}
}
bed for the fragment in the activity .xml file :
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/layout_multimedia"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toTopOf="#id/active_instructions" />
and the .xml file of the fragment :
<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="wrap_content"
tools:context=".tutorial.mediaplayer.MultimediaPlayer">
<VideoView
android:id="#+id/video_embed"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/image_embed"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
android:contentDescription="#string/image_default_no_description" />
</androidx.constraintlayout.widget.ConstraintLayout>
As mentioned, video works super fine, but images won't show. I'd appreciate even monkey wrench suggestions before I have to rework this entirely.

As mentioned in my other answer, it's not related to the ImageView, it's a problem with SQLite and loading a boolean from the database. The default false which I wanted to correspond with video types is default, so it worked, but since it doesn't default to true the image condition wasn't fulfilled. Anyway the ImageView will work once it is actually ran.

Understanding why onClick() is Called Even After onDispatchTouchEvent() Returns True

Lets say, in an Android app, we want to have the ability to temporarily and reliably ignore all user touches at any moment.
From the research I have done on stack-overflow as well as here, here, and here, the agreed-upon solution seems to be something like this:
(Code of MainActivity.java):
// returning true should mean touches are ignored/blocked
#Override
public boolean dispatchTouchEvent(MotionEvent pEvent) {
if (disableTouches) {
return true;
} else {
return super.dispatchTouchEvent(pEvent);
}
}
However, when we introduce the Android Monkey Exerciser Tool and send touch events to the app at a rapid rate, it becomes apparent that pigs begin to fly at the quantum level -- we can get calls to onClick() even after/during times where "blockTouches" has been set to true.
MY QUESTION IS: Why is that? -- Is this a normal Android behavior, or did I make a mistake in my code? :)
Note: I have already ruled out the possibility of onClick() being called by user input other than touches (and therefore being uncontrolled by the onDispatchTouchEvent() method)... by adding "—-pct-touch 100" to the monkey command.
Here is the code I am using for this test:
MainActivity:
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
View rootView; // turns black when "touch rejection" is in progress
View allowedButton;
View notAllowedButton;
// Used to decide whether to process touch events.
// Set true temporarily when notAllowedButton is clicked.
boolean touchRejectionAnimationInProgress = false;
int errorCount = 0; // counting "unexpected/impossible" click calls
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
rootView = findViewById(R.id.rootView);
allowedButton = findViewById(R.id.allowedButton);
notAllowedButton = findViewById(R.id.notAllowedButton);
allowedButton.setOnClickListener(this);
notAllowedButton.setOnClickListener(this);
allowedButton.setBackgroundColor(Color.GREEN);
notAllowedButton.setBackgroundColor(Color.RED);
}
// returning true should mean touches are ignored/blocked
#Override
public boolean dispatchTouchEvent(MotionEvent pEvent) {
if (touchRejectionAnimationInProgress) {
Log.i("XXX", "touch rejected in dispatchTouchevent()");
return true;
} else {
return super.dispatchTouchEvent(pEvent);
}
}
#Override
public void onClick(View viewThatWasClicked){
Log.i("XXX", "onClick() called. View clicked: " + viewThatWasClicked.getTag());
//checking for unexpected/"impossible"(?) calls to this method
if (touchRejectionAnimationInProgress) {
Log.i("XXX!", "IMPOSSIBLE(?) call to onClick() detected.");
errorCount ++;
Log.i("XXX!", "Number of unexpected clicks: " + errorCount);
return;
} // else proceed...
if (viewThatWasClicked == allowedButton) {
// Irrelevant
} else if (viewThatWasClicked == notAllowedButton) {
// user did something that is not allowed.
touchRejectionAnimation();
}
}
// When the user clicks on something "illegal,"
// all user input is ignored temporarily for 200 ms.
// (arbitrary choice of duration, but smaller is better for testing)
private void touchRejectionAnimation() {
Log.i("XXX", "touchRejectionAnimation() called.");
touchRejectionAnimationInProgress = true;
rootView.setBackgroundColor(Color.BLACK);
// for logging/debugging purposes...
final String rejectionID = (new Random().nextInt() % 9999999) + "";
Log.i("XXX", "rejection : " + rejectionID + " started.");
Thread thread = new Thread(new Runnable() {
#Override
public void run() {
try { Thread.sleep(200); } catch (Exception e) {
Log.e("XXX", "exception in touchRejection() BG thread!");
}
runOnUiThread(new Runnable() {
#Override
public void run() {
Log.i("XXX", "rejection " + rejectionID + " ending");
rootView.setBackgroundColor(Color.WHITE);
touchRejectionAnimationInProgress = false;
}
});
}
});
thread.start();
}
}
layout.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:id="#+id/rootView"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<View
android:id="#+id/allowedButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="32dp"
android:layout_marginBottom="32dp"
android:tag="allowedButton"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/notAllowedButton"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:id="#+id/notAllowedButton"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginTop="32dp"
android:layout_marginBottom="32dp"
android:tag="view2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/allowedButton"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

If you don't want your onClick() to be triggered on any view click.
Following are the steps which need to take care.
Create custom viewGroup eg: MyConstraintLayout and add all child
inside it.
Override onInterceptTouchEvent(MotionEvent ev) and return it has true.
public class MyConstraintLayout extends ConstraintLayout {
private boolean mIsViewsTouchable;
public ParentView(Context context) {
super(context);
}
public ParentView(Context context, AttributeSet attrs) {
super(context, attrs);
inflate(context, R.layout.custom_view, this);
}
public ParentView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
public void setViewsTouchable(boolean isViewTouchable) {
mIsViewsTouchable = isViewTouchable;
}
#Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return mIsViewsTouchable;
}
}
Note: Use setViewsTouchable() method as per your requirement, If you pass the parameter as true all views are not clickable if false your views will be clickable.

How to hide and display a view in front of a webview depending on user input

I'm currently working on a project where I use a webview packed in RelativeLayout and I placed a ImageButton in the left-bottom corner:
<RelativeLayout
android:id="#+id/relativeLayout_maincontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<WebView
android:id="#+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
/>
<ImageButton
android:id="#+id/imageButton_call"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginLeft="2dp"
android:src="#android:drawable/ic_menu_call" />
</RelativeLayout>
This works just fine. The next step I was thinking of is that the button can sometimes disturb my users, when they can't see the stuff behind the button... So I tried to hide the button after a few seconds and when the user is scrolling/touching/or whatever (just some user input) I'll display it and after a few seconds the button should disappear again. Like the zoom-in and zoom-out buttons in a webview. The best way would be to use the same functionality as these zoom buttons, but I couldn't find a way to do this. I created a function based on the knowledge of How to show a view for 3 seconds, and then hide it? :
private void startCallButtonHidingThread() {
Thread thread = new Thread() {
#Override
public void run() {
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
runOnUiThread(new Runnable() {
#Override
public void run() {
callButton.setVisibility(ImageButton.GONE);
}
});
}
};
thread.start();
}
That works great. The next step was to display the button when user input happens, so I tried things like that:
relativeLayout.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
if(callButton.getVisibility() == ImageButton.GONE) callButton.setVisibility(ImageButton.VISIBLE);
startCallButtonHidingThread();
return false;
}
});
or that:
relativeLayout.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
if(callButton.getVisibility() == ImageButton.GONE) callButton.setVisibility(ImageButton.VISIBLE);
startCallButtonHidingThread();
}
});
and the same I tried on the webview. Most of the time it works just one time and then there is no reaction at all.
So if you have any idea or a better solution, please let me know.
I really appreciate your help!

I think it's android restriction. Try to use handler:
private Handler handler = new Handler(){
#Override
public void handleMessage(Message msg) {
switch (msg.what){
case 1:{
if(callButton.getVisibility() == ImageButton.GONE) callButton.setVisibility(ImageButton.VISIBLE);
startCallButtonHidingThread();
}
}
};
And your listener:
relativeLayout.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
handler.sendEmptyMessage(1);
return false;
}
});