Develop Reference

Scroll all the screen when use gridview with other items

I have a fragment that displays some items "images and buttons"
I want to scroll all the screen, not just the gridview, I made some search and used some codes but it is sold not working, so how can I do that.......
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Here is the problem 4 sec
my codes
<ScrollView
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="#FFFFFF"
android:overScrollMode="never"
android:scrollbars="none"
tools:context=".Fragment.ImagesFragmentProject.HomeImagesFragment">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF">
<!-- editor's chooses text -->
<TextView
android:id="#+id/choose_text2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/scrollView_image"
android:paddingTop="20dp"
android:paddingRight="10dp"
android:paddingBottom="6dp"
android:text="إختيار المحررين"
android:textColor="#color/colorBlack"
android:textSize="18sp"
android:textStyle="bold" />
<GridView
android:id="#+id/gridview_image_choose"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_below="#id/choose_text2"
android:background="#fff"
android:columnWidth="100dp"
android:fastScrollEnabled="false"
android:gravity="center"
android:horizontalSpacing="0dp"
android:numColumns="auto_fit"
android:paddingTop="8dp"
android:scrollbars="none"
android:stretchMode="columnWidth"
android:verticalSpacing="0dp" />
</RelativeLayout>
Java class
public class HomeImagesFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
/* ArrayList for chooseImages */
final String[] chooseImages = {
"https://i1.wp.com/www.newphotodownload.info/wp-content/uploads/2018/12/%D8%A8%D9%88%D8%B3%D8%AA%D8%A7%D8%AA-%D8%AF%D9%8A%D9%86%D9%8A%D8%A9-61-1.jpg",
"https://quotess.cc/wp-content/uploads/2020/01/4688.jpg",
"https://whatt.cc/wp-content/uploads/2018/07/4443.jpg",
"https://i1.wp.com/www.newphotodownload.info/wp-content/uploads/2018/12/%D8%A8%D9%88%D8%B3%D8%AA%D8%A7%D8%AA-%D8%AF%D9%8A%D9%86%D9%8A%D8%A9-61-1.jpg",
"https://quotess.cc/wp-content/uploads/2020/01/4688.jpg",
"https://whatt.cc/wp-content/uploads/2018/07/4443.jpg",
"https://i1.wp.com/www.newphotodownload.info/wp-content/uploads/2018/12/%D8%A8%D9%88%D8%B3%D8%AA%D8%A7%D8%AA-%D8%AF%D9%8A%D9%86%D9%8A%D8%A9-61-1.jpg"
};
/* make new object and find the view "GridView" */
GridView gridview1 = rootView.findViewById(R.id.gridview_image_choose);
// display all the images from Array on it
gridview1.setAdapter(new PicassoImagesAdapter(getActivity(), chooseImages));
/* display the image when click on it */
// we made a class for this method called "PicassoDisplayImageAdapter"
gridview1.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// get the image
String image = chooseImages[position];
Intent intent = new Intent(getActivity(), PicassoDisplayImageAdapter.class);
intent.putExtra("imageUrl", image);
getActivity().startActivity(intent);
}
});
return rootView;
}
}

long click triggers click, long click doesn't get registered

I have a listview in a constraintlayout.
when I try to do a long click on one of the elements of the list, to inflate the context menu, there are 2 problems:
1: It triggers the long click only sometimes, really random
2: After the long click was triggered the "normal" click is also triggered even though the onContextItemSelected returns true (to indicate the event was handled)
for some list elements, I want to have both the onClickListener and the long click for the contextmenu, on others only the contextmenu. (the listview is registered for contextmenu).
Heres the XML of the MainActivity
<?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="it.netknights.piauthenticator.MainActivity"
tools:layout_editor_absoluteY="81dp"
tools:layout_editor_absoluteX="0dp">
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
app:backgroundTint="#color/PIBLUE"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:srcCompat="#drawable/ic_add_white_24dp" />
<TextView
android:id="#+id/countdownfield"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:layout_marginLeft="8dp"
android:layout_marginStart="8dp"
android:backgroundTint="#color/PIBLUE"
android:text="TextView"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#color/PIBLUE"
android:elevation="4dp"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:popupTheme="#color/PIBLUE"
tools:layout_editor_absoluteY="-57dp" />
<ListView
android:id="#+id/listview"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="8dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintBottom_toTopOf="#+id/countdownfield"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="#+id/toolbar"
app:layout_constraintVertical_bias="1.0" />
</android.support.constraint.ConstraintLayout>
and the XML of the listentry
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:longClickable="true"
tools:layout_editor_absoluteY="81dp"
tools:layout_editor_absoluteX="0dp">
<TextView
android:id="#+id/textViewToken"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="124891"
android:textSize="28sp"
android:textStyle="bold"
tools:layout_editor_absoluteY="0dp"
android:layout_marginLeft="0dp"
app:layout_constraintLeft_toLeftOf="parent" />
<!-- android:clickable="false"
android:focusable="false"
android:focusableInTouchMode="false"-->
<TextView
android:id="#+id/textViewLabel"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="privacyidea something"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_marginTop="0dp"
app:layout_constraintTop_toBottomOf="#+id/textViewToken"
android:layout_marginLeft="0dp"
app:layout_constraintLeft_toLeftOf="parent" />
<ProgressBar
android:id="#+id/progressBar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="0dp"
android:layout_height="20dp"
android:layout_marginLeft="0dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginTop="0dp"
app:layout_constraintTop_toBottomOf="#+id/textViewLabel"
android:layout_marginRight="0dp"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintHorizontal_bias="0.517"
/>
</android.support.constraint.ConstraintLayout>
the part of the MainActivity.java
final ListView listview = (ListView) findViewById(R.id.listview);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(view.getContext(), "SHORT itemclick", Toast.LENGTH_SHORT).show();
}
});
registerForContextMenu(listview);
and the getview method from my custom adapter:
#Override
public View getView(final int position, View v, ViewGroup parent) {
if (v == null) {
final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
v = inflater.inflate(R.layout.tokenentry, parent, false);
}
v.setLongClickable(true);
v.setTag(position);
final ProgressBar progressBar = (ProgressBar) v.findViewById(R.id.progressBar);
final Token token = getItem(position);
final TextView tmp2 = (TextView) v.findViewById(R.id.textViewToken);
final TextView tmp1 = (TextView) v.findViewById(R.id.textViewLabel);
if (token.getType().equals(HOTP)) {
progressBar.setVisibility(GONE);
} else {
progressBar.setVisibility(VISIBLE);
//v.setClickable(false);
}
progressBar.setTag(position);
progressBar.setMax(token.getPeriod());
progressBar.getProgressDrawable().setColorFilter(
Color.rgb(0x83, 0xc9, 0x27), android.graphics.PorterDuff.Mode.SRC_IN);
token.setPb(progressBar);
tmp1.setText(token.getLabel());
tmp2.setText(token.getCurrentOTP());
EDIT: thank you for taking your time to post answers.
Ive solved the/my problem: the rootelement of the listentries was a contraintlayout and that doesn't seem to work properly with the scenarios i want, so i changed it so a relativelayout and it now it works perfectly!

hi Cxc the problem might be due to listView registered for both onClick and onLongClick . So instead of setting the onClickListener for the entire list view try setting the onClick listener to only the item view for which you need both onClickListener and long click.
You can set onClickListener to particular views inside getView() method based on their position or view type.
for example,
#Override
public View getView(final int position, View v, ViewGroup parent) {
if (v == null) {
final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
v = inflater.inflate(R.layout.tokenentry, parent, false);
}
v.setLongClickable(true);
v.setTag(position);
if(position % 2 == 0)
{
v.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(v.getContext(), "SHORT itemclick",
Toast.LENGTH_SHORT).show();
}
});
hope this helps

I think you can use both onClick and onLongClick and override the onLongClick method making it returns true to avoid conflict of triggering onClick event
ex:
GridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
<do somthing here>
}
});
GridView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> adapterView, final View view, final int i, long l) {
<do something here>
return true;
}
});

Want to open WebView in each list item click?

I Want to open a static HTML file in each click of List item but when i call my listview is disappeared . please help me to short out this problem.
My Tab1Fragment.java Code is this
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_tab1, container, false);
Resources res = getResources();
mainTopic = res.getStringArray(R.array.MainTopic);
mainDescription = res.getStringArray(R.array.DescriptionContent);
listView = (ListView) view.findViewById(R.id.listView);
MyAdapter myAdapter = new MyAdapter(getActivity(), mainTopic, image1,
mainDescription);
listView.setAdapter(myAdapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
switch (position) {
case 0:
wb=(WebView)view.findViewById(R.id.webView);
wb.loadUrl("file:///assets/ActivePassive.html");
wb.getSettings().setJavaScriptEnabled(true);
wb.setWebViewClient(new WebViewClient());
}
}
});
return view;
}
}
My fragment_tab1.xml code is :-
<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="androidthirst.company.abhi.totalenglish.Tab1Fragment">
<!-- TODO: Update blank fragment layout -->
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
And my separate listView code is this
single_row.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#1A237E"
android:gravity="center"
android:textStyle="bold"
android:textSize="30sp"
android:layout_margin="9dp"
android:textColor="#ffffff"
android:id="#+id/imageView" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:id="#+id/textView"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/imageView"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Small Text"
android:id="#+id/textView2"
android:layout_toRightOf="#+id/imageView"
android:layout_below="#+id/textView"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignBottom="#+id/imageView" />
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/webView">
</WebView>
</RelativeLayout>
Here you can see the image i just want to open thml file in first list Item Click

Try Bellow code:
list_Id.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
list_Id.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
WebView webView = new WebView(v.getContext());
String[] urls = getResources().getStringArray(R.array.bookmark_urls);
webView.loadUrl(urls[position]);
}
});
}
});
Create a file string-array.xml inside values and put all web addresses as bellow:
<resources>
<string-array name="bookmark_urls">
<item>http://www.google.com</item>
<item>http://www.android.com/</item>
<item>http://www.facebook.com/</item>
<item>http://www.android.com/</item>
<item>http://www.android.com/</item>
</string-array>
</resources>

you can use something like below
String url = "http://www.example.com";
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);

Your layout is "fragment_tab1"
View view = inflater.inflate(R.layout.fragment_tab1, container, false);
While you wrot layout name "My tab1_fragment.xml code is :-"
please check is that exact layout?
And your Webview is in Row file which used in adapter class.. (single_row.xml)
You tried to load in activity..
Thanks abhi..

ListView - view is related with many rows

I want item from ListView disappear when I touch it. It is working but
problem is when I scroll list. Random items are disappearing or showing.
This is my code:
private ListView list;
(...)
list = (ListView) findViewById(R.id.units_list);
adapter = new UnitAdapter(this, R.layout.row_list, units);
list.setAdapter(adapter);
list.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
v.setVisibility(View.INVISIBLE);
}
});
ListView XML:
<ListView
android:id="#+id/units_list"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#id/strut"
android:layout_marginTop="5dp" >
</ListView>
row_list.xml:
<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="${relativePackage}.${activityClass}"
android:descendantFocusability="blocksDescendants" >
<ImageView
android:id="#+id/img"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginBottom="15dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="15dp"
android:gravity="center_vertical" />
<TextView
android:id="#+id/description"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="20dp"
android:layout_marginTop="5dp"
android:layout_toRightOf="#id/img"
android:gravity="center_vertical"
android:textSize="14sp" />
<ImageView
android:id="#+id/upgrade"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentRight="true"
android:layout_marginBottom="15dp"
android:layout_marginRight="10dp"
android:layout_marginTop="15dp"
android:gravity="center_vertical" />
I tried too:
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
list.getChildAt(position).setVisibility(View.INVISIBLE);
}
And even:
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
list.getChildAt((int) id).setVisibility(View.INVISIBLE);
}
But it works same.
What is the problem? Why View is related with multiple rows? How can I fix this?

It may be related to the fact that a view in a ListView is recycled in Android, so when you edit a row you may see the difference when you scroll in multiple rows.
One solution could be to update the underlying adapter and then call notifyDataSetChanged. But there may be smoother solutions.

Use View Holder design pattern.
when you are removing the item from List View, remove the same from list(in your case unit) also.

ListFragment OnItemClickListener

I have a list fragment displaying my custom list items which consist of a relative layout containing images and text etc.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#color/main_background"
android:paddingLeft="20dp"
android:paddingTop="10dp"
android:paddingRight="20dp"
android:paddingBottom="10dp"
android:descendantFocusability="blocksDescendants" >
<ImageView
android:id="#+id/source_image"
android:layout_width="30dp"
android:layout_height="30dp"
android:background="#color/black"
android:layout_alignParentLeft="true"
android:contentDescription="#string/info" />
<TextView
android:id="#+id/item_description"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:textStyle="bold"
android:layout_toRightOf="#+id/source_image"
android:textColor="#color/black"
android:paddingRight="5dp"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingLeft="5dp"
android:textAlignment="center"
android:text="#string/item_desc" />
<ImageView
android:id="#+id/arrow_image"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginRight="30dp"
android:layout_alignParentRight="true"
android:contentDescription="#string/info"
android:src="#drawable/arrow_right" />
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="none"
android:layout_centerInParent="true"
android:background="#color/main_background"
android:layout_below="#+id/item_description">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#color/white"
android:layout_gravity="fill_horizontal"
android:layout_marginRight="20dp"
android:padding="5dp"
android:orientation="horizontal" >
<ImageView
android:id="#+id/item_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/info"
android:src="#drawable/chameleon" />
<ImageView
android:id="#+id/item_image2"
android:paddingLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/info"
android:gravity="center"
android:src="#drawable/chameleon" />
<ImageView
android:id="#+id/item_image3"
android:paddingLeft="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/info"
android:gravity="center"
android:src="#drawable/chameleon" />
</LinearLayout>
</HorizontalScrollView>
</RelativeLayout>
I am trying to set up an OnItemClickListener so when the user clicks anywhere on the list item, a new Intent is started.
#Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
//Populate list view with array objects
adapter = new HomeListItemAdapter(items, getActivity());
listView = getListView();
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
Toast toast = Toast.makeText(listView.getContext(), "CLICKED", Toast.LENGTH_SHORT);
toast.show();
}
});
}
I am attempting this as shown above but can't seem to get the OnItemClickListener to work (just testing with Toast instead of Intent for now). Where am I going wrong?
Thanks
EDIT: Added custom list adapter code
public class HomeListItemAdapter extends BaseAdapter {
private List<HomeListItem> items;
private Context context;
private int numItems = 0;
public HomeListItemAdapter(final List<HomeListItem> items, Context context) {
this.items = items;
this.context = context;
this.numItems = items.size();
}
public int getCount() {
return numItems;
}
public HomeListItem getItem(int position) {
return items.get(position);
}
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
// Get the current list item
final HomeListItem item = items.get(position);
// Get the layout for the list item
final RelativeLayout itemLayout = (RelativeLayout) LayoutInflater.from(context).inflate(R.layout.list_item, parent, false);
// Set the the item picture(s)
ImageView itemImage = (ImageView) itemLayout.findViewById(R.id.item_image);
itemImage.setImageDrawable(item.getItemPic());
//Set the profile picture / source picture
ImageView sourceImage = (ImageView) itemLayout.findViewById(R.id.source_image);
sourceImage.setImageDrawable(item.getSourcePic());
// Set the text label as defined in our list item
TextView itemDesc = (TextView) itemLayout.findViewById(R.id.item_description);
AssetManager am = context.getAssets();
Typeface font = Typeface.createFromAsset(am, "Raleway-Thin.ttf");
itemDesc.setTypeface(font);
itemDesc.setText(item.getText());
return itemLayout;
}
}

Try extending ListFragment (instead of just a normal Fragment). Then you can override onListItemClicked:
public void onListItemClick(ListView l, View v, int pos, long id)
This gives you the list, view, position, and id, so you should be able to do whatever you need.

Could you try setting the HozizontalScrollView to not get focus with the XML attribute
android:focusable="false"

If you have a TextView inside the row then that will take focus when the row is clicked. This will mean that onListItemClick is not called. You either need to have an OnClickListener on the TextView or remove focus from the TextView.
See ListFragment OnListItemClick not being called

Try this sample project for costum ListFragment. It is a very good example with a costum ListFragment showing 2 types of views for phone and tablets.
http://s000.tinyupload.com/index.php?file_id=09444774931653041243
Courtsey
http://jcrazyandroider.blogspot.in/2015/01/download-links.html