I've been looking for the answer to my problem, and I've found similar entries and have fixed some things but not the main problem.
When I run my code all thumbnails' images are the same and there is no text displaying in the TextViews, even though the Log.D is showing I'm changing the textViews to the correct texts and images.
My activity code:
ListView lvMaterias;
String[] materiasNombre;
int[] thumbnails={R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui,
R.drawable.thumbnailanato,
R.drawable.thumbnailbioqui};
List<materiaRow> materiasObjetos= new ArrayList<materiaRow>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_select);
//inicializar los arrays y todo
lvMaterias = (ListView)findViewById(R.id.lvMaterias);
materiasNombre=this.getResources().getStringArray(R.array.nombreMateria);
int i=0;
for (String nombre : materiasNombre){
Log.d("loop", nombre);
materiasObjetos.add(new materiaRow(thumbnails[i],nombre, "0%"));
}
lvMaterias.setAdapter(new materiasAdapter(getApplicationContext(), R.layout.rowmateria, materiasObjetos));
}
}
My Adapter Class, the log.d at the getView method show I have the correct text and images, but textViews are not getting changes:
public class materiasAdapter extends ArrayAdapter implements View.OnClickListener{
private int layout;
public materiasAdapter(Context context, int resource, List objects) {
super(context, resource, objects);
layout=resource;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
materiaHolder mH;
if (convertView==null){
mH= new materiaHolder();
LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView= inflater.inflate(layout, parent, false);
mH.thumbnail= (ImageView) convertView.findViewById(R.id.ivthumbnail);
mH.materia= (TextView) convertView.findViewById(R.id.tvmateria);
mH.porcentaje= (TextView) convertView.findViewById(R.id.tvporcentaje);
mH.favorito = (Button) convertView.findViewById(R.id.bfavoritos);
mH.favorito.setOnClickListener(this);
convertView.setTag(mH);
}
else {
mH= (materiaHolder) convertView.getTag();
}
materiaRow mR= (materiaRow) getItem(position);
mH.thumbnail.setImageResource(mR.getThumbnail());
mH.porcentaje.setText(mR.getPorcentaje());
Log.d("thumbnail", Integer.toString(mR.getThumbnail()));
mH.materia.setText(mR.getMateria());
Log.d("texto", mR.getMateria());
return convertView;
}
#Override
public void onClick(View v) {
}
class materiaHolder {
ImageView thumbnail;
TextView materia;
TextView porcentaje;
Button favorito;
}
}
XML as requested (Select Activity):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
tools:context="com.example.quetzal.elite.Select">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"></LinearLayout>
<ListView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/lvMaterias" />
And rowMateria (resource of the adapter class):
<?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="horizontal">
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:id="#+id/ivthumbnail" />
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="20dp" >
<TextView
android:layout_width="wrap_content"
android:layout_height="50dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/tvmateria" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="20dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="50dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Large Text"
android:id="#+id/tvporcentaje" />
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="50dp"
android:text="fav"
android:id="#+id/bfavoritos" />
</LinearLayout>
Thanks in advance for the help.
As far as the issue with the thumgnail goes... In your main onCreate(), it doesn't look like you aren't adding the rows correctly.
int i=0;
for (String nombre : materiasNombre){
Log.d("loop", nombre);
materiasObjetos.add(new materiaRow(thumbnails[i],nombre, "0%"));
}
You need to increment i, or you will always get thumbnails[0].
When I ran your code, for whatever reason on my emulator, the text color and background color were the same - So the text was being set, but you could not see it.
You can set up your background on the activity as something specific like
android:background="#android:drawable/screen_background_dark"
and the text with something like
android:textColor="#android:color/primary_text_light"
I'm not very well versed on the preferred methods of setting the background and text colors - longer term you should be looking at the themes I believe.
Try making the ViewHolder class static like here:
https://github.com/isaacurbina/ViewHolderListView/blob/master/app/src/main/java/com/mac/isaac/viewholderlistview/MyArrayAdapter.java
Hope it helps!
Related
I created a layout like this:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/rlMenu"
android:layout_centerHorizontal="true"
android:gravity="center"
android:layout_centerVertical="true">
<RelativeLayout
android:background="#drawable/dark_rectangle_bord"
android:id="#+id/rl1dia"
android:elevation="10dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_width="#dimen/sizeCard"
android:layout_height="#dimen/sizeCard"
android:layout_marginBottom="#dimen/padding_bottom_cards"
android:layout_marginEnd="#dimen/padding_end_cards"
android:layout_marginRight="#dimen/padding_end_cards"
android:layout_marginLeft="#dimen/padding_start_cards"
android:layout_marginStart="#dimen/padding_start_cards"
android:layout_marginTop="#dimen/padding_top_cards">
<TextView
android:text="1º Dia"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/tv1dia"
android:textStyle="normal|bold"
android:textColor="#color/Branco"
android:layout_alignParentBottom="true"
android:padding="10dp"
android:textSize="#dimen/texto_pequeno"
android:gravity="center"
android:fontFamily="sans-serif"
android:layout_centerHorizontal="true"/>
<ImageView
app:srcCompat="#drawable/ic_calendario_1"
android:id="#+id/iv1dia"
android:layout_width="#dimen/sizeImage"
android:layout_height="#dimen/sizeImage"
android:layout_centerHorizontal="true"
android:layout_alignParentTop="true"
/>
After that, I had included it on my MainActivity.
<include
android:id="#+id/my_custom_view"
layout="#layout/custom_view></include>
But in this Custom View there are a RelativeLayout, a ImageView and a TextView. I need to create some Custom Views dynamically, sample as below.
How can i create this Custom View Programatically?
Ex.:
Button bt = new Button(MainActivity.this);
And how can I change the TextView, RelativeLayout, background and the ImageView programatically? Like:
CustomView cv = new CustomView(MainActivity.this);
cv.setImage(R.drawable.chips);
cv.setRlBackground(Color.WHITE);
cv.setText("Hello, World!");
You can use LayoutInflater for that
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View mView = (View) inflater.inflate(R.layout.custom_view, null);
View email = (View) mView.findViewById(R.id.email);
yourParentView.addView(mView);
But make sure when you add view to its parent call removeAllview() method of yourParentView
Maybe you want to create an actual custom View, using include will not create a custom View but will only inject in your layout that particular xml. So, create a class (in this case extends RelativeLayout but you can use whatever suits you here)
public class CustomView extends RelativeLayout {
private TextView textView;
private ImageView imageView;
public CustomView(Context context, AttributeSet attrs) {
super(context, attrs);
inflate(context, R.layout.custom_view, this);
imageView = (ImageView) findViewById(R.id.image_view);
textView = (TextView) findViewById(R.id.text_view);
}
public void setImage(int resId){
imageView.setImageResource(resId);
}
public void setText(String text){
textView.setText(text);
}
}
an xml of the layout of your custom View (custom_view.xml), you might want to use merge instead of include since you already have a parent layout (RelativeLayout in this case)
<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android">
<TextView
android:id="#+id/text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<ImageView
android:id="#+id/image_view"
android:layout_width="48dp"
android:layout_height="48dp"
/>
</merge>
add your custom view to the Activity layout like this, please note that you need to use the full name of the custom View class you're using, in this case com.example.lelloman.dummy.CustomView
<?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:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin">
<com.example.lelloman.dummy.CustomView
android:id="#+id/custom_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
and in your Activity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_activity);
CustomView customView = (CustomView) findViewById(R.id.custom_view);
customView.setImage(R.drawable.some_icon);
customView.setText("Hello world");
}
I have a custom view adapter with four buttons and a title that populate a ListView.
When a user clicks one of those buttons, I want to retrieve the title associated with that specific adapter.
So far I have tried retrieving the parent and getting the textView but that does not return the correct title.
So...how would I get the specific title affiliated to the adapter that has the button the user clicked on?
I'd be happy to clarify if you need more information.
Here is the layout of the adapter.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:textAppearance="?android:attr/textAppearanceLarge"
android:id="#+id/fragment_student_home_classTitle_textView"
android:paddingTop="20dp"
android:layout_toLeftOf="#+id/linearLayout"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<LinearLayout
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="right"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:id="#+id/linearLayout">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="#+id/fragment_student_home_grades"
android:background="#ffff130c" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/fragment_student_home_grades_imageButton"
android:src="#drawable/ic_grades_512"
android:background="#00000000" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="#+id/fragment_student_home_notification_textEdit"
android:background="#ffff130c" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/fragment_student_home_notification_imageButton"
android:src="#drawable/ic_bell_512"
android:background="#00000000" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="#+id/fragment_student_home_homework"
android:background="#ffff130c" />
<ImageButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/fragment_student_home_homework_imageButton"
android:src="#drawable/ic_foundation_book_bookmark_simple_black_512x512"
android:contentDescription="#string/homework_notification_icon"
android:background="#00000000" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:weightSum="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="#+id/fragment_student_home_attendance"
android:background="#ffff130c" />
<ImageButton
android:layout_width="42dp"
android:layout_height="40dp"
android:id="#+id/fragment_student_home_attendance_imageButton"
android:src="#drawable/ic_attendance"
android:contentDescription="#string/homework_notification_icon"
android:background="#00000000" />
</LinearLayout>
</LinearLayout>
And here is the adapter where I implemented the onClick
public class ClassAdapter extends ArrayAdapter<SchoolClass> implements View.OnClickListener{
private SchoolClass aClass;
public ClassAdapter(Context context, int resource, ArrayList<SchoolClass> objects) {
super(context, resource, objects);
}
public SchoolClass getSchoolClass(){
return this.aClass;
}
public void setSchoolClass(SchoolClass schoolClass){
this.aClass = schoolClass;
}
#Override
public View getView(int position, View convertView, ViewGroup parent){
View v = convertView;
if (v == null) {
LayoutInflater vi;
vi = LayoutInflater.from(getContext());
v = vi.inflate(R.layout.classes_adapter, null);
}
aClass = getItem(position);
if(aClass != null){
TextView title = (TextView) v.findViewById(R.id.fragment_student_home_classTitle_textView);
if(title != null){
title.setText(aClass.getTitle());
}
setSchoolClass(aClass);
}
//set buttons
ImageButton notificationsButton = (ImageButton) v.findViewById(R.id.fragment_student_home_notification_imageButton);
ImageButton gradesButton = (ImageButton) v.findViewById(R.id.fragment_student_home_grades_imageButton);
ImageButton attendanceButton = (ImageButton) v.findViewById(R.id.fragment_student_home_attendance_imageButton);
ImageButton homeworkButton = (ImageButton) v.findViewById(R.id.fragment_student_home_homework_imageButton);
notificationsButton.setOnClickListener(this);
gradesButton.setOnClickListener(this);
attendanceButton.setOnClickListener(this);
homeworkButton.setOnClickListener(this);
return v;
}
#Override
public void onClick(View v) {
Intent intent = new Intent(getContext(), ClassActivity.class);
View parent = (View) v.getRootView();
//v.getParent() returns null when I look for the textView
TextView title = (TextView) parent.findViewById(R.id.fragment_student_home_classTitle_textView);
System.out.println("\n\n title: " + title.getText().toString() + " \n\n");
intent.putExtra("__CLASS_NAME__", title.getText().toString());
It populates a list view and if I were to click on fragment_student_home_attendance_imageButton I would want to get the fragment_student_home_classTitle_textView associated with that ClassAdapter.
Just give a idea to you, hope this can help to fix the problem :)
#Override
public View getView(int position, View convertView, ViewGroup parent){
View v = convertView;
// ....
ImageButton notificationsButton = (ImageButton) v.findViewById(R.id.fragment_student_home_notification_imageButton);
notificationsButton.setTag(R.id.fragment_student_home_notification_imageButton);
// ....
return v;
}
#Override
public void onClick(View v) {
if(v!=null && v.getTag()!=null && v.getTag()==R.id.fragment_student_home_notification_imageButton){
// do something you like
}
}
Ok nevermind, I got it.
#Override
public void onClick(View v) {
Intent intent = new Intent(getContext(), ClassActivity.class);
//It's the parent of the parent OF THE parent where
//the textView lies in my layout.
View parent = (View) v.getParent().getParent().getParent();
TextView title = (TextView) parent.findViewById(R.id.fragment_student_home_classTitle_textView);
System.out.println("\n\n title: " + title.getText().toString() + " \n\n");
intent.putExtra("__CLASS_NAME__", title.getText().toString());
If there is a better way to get this solution, as it seems like a head on approach to the problem, I welcome any comments!
I've wrote a small application, which shows several android cards. But I'd like to be able to set a colour and title to the top of the card like in the image below, so far I haven't found any information online how to do this. So some help would be fantastic :-)
(My code so far does not accomplish the above, so far my code just produces regular all white cardviews)
My code so far is below:
CardAdapter.java
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
public List<TTItem> posts = new ArrayList<>();
public void addItems(List<TTItem> items) {
posts.addAll(items);
notifyDataSetChanged();
}
public void clear() {
posts.clear();
notifyDataSetChanged();
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = parent.getContext();
View view = View.inflate(context, R.layout.item_cardview, null);
return new ViewHolder(view);
}
#Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.mTextView.setText(posts.get(position).title);
Picasso.with(holder.mImageView.getContext()).load(posts.get(position).images[0]).into(holder.mImageView);
}
#Override
public int getItemCount() {
return posts.size();
}
static class ViewHolder extends RecyclerView.ViewHolder {
public TextView mTextView;
public ImageView mImageView;
public ViewHolder(View view) {
super(view);
mTextView = (TextView) view.findViewById(R.id.textview);
mImageView = (ImageView) view.findViewById(R.id.imageView);
}
}
}
MainActivity.java
public class MainActivity extends ActionBarActivity implements SwipeRefreshLayout.OnRefreshListener {
#InjectView(R.id.mainView)
RecyclerView mRecyclerView;
#InjectView(R.id.refreshContainer)
SwipeRefreshLayout refreshLayout;
private LinearLayoutManager mLayoutManager;
private CardAdapter mAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.inject(this);
mRecyclerView.setHasFixedSize(true);
refreshLayout.setOnRefreshListener(this);
TypedValue tv = new TypedValue();
int actionBarHeight = 0;
if (getTheme().resolveAttribute(R.attr.actionBarSize, tv, true)) {
actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, getResources().getDisplayMetrics());
}
refreshLayout.setProgressViewEndTarget(true, actionBarHeight);
mAdapter = new CardAdapter();
mRecyclerView.setAdapter(mAdapter);
// use a linear layout manager
mLayoutManager = new GridLayoutManager(this, 1);
mRecyclerView.setLayoutManager(mLayoutManager);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
return super.onOptionsItemSelected(item);
}
#Override
public void onRefresh() {
mAdapter.clear();
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
public void run() {
refreshLayout.setRefreshing(false);
}
}, 2500);
}
}
Activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/refreshContainer"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="#+id/mainView"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.SwipeRefreshLayout>
</LinearLayout>
item_cardview.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="200dp"
android:layout_height="200dp"
android:padding="10dp"
card_view:cardCornerRadius="2dp"
card_view:contentPadding= "5dp"
card_view:cardUseCompatPadding="true"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="150dp"
android:scaleType="centerCrop"/>
<TextView
android:id="#+id/textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:textStyle="bold"
android:layout_gravity="center"/>
</LinearLayout>
</android.support.v7.widget.CardView>
The only change I've made from yours is, card_view:cardCornerRadius="8dp"> and removed the imageview(as no longer needed)
Screenshot of flashcard not filling to half of card:
I believe this is (almost) exact layout of what you want. It is pretty self-explanatory but feel free to ask if something's not clear.
<?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"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="#+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
app:cardElevation="8dp"
card_view:cardCornerRadius="2dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<LinearLayout <!-- This is the specific part you asked to color -->
android:id="#+id/heading_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/teal_500"
android:padding="36dp"
android:orientation="vertical">
<TextView
android:id="#+id/tv_heading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="22 mins to Ancona"
android:textColor="#color/white"
android:textStyle="bold"
android:textSize="36sp" />
<TextView
android:id="#+id/tv_subheading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_below="#+id/tv_heading"
android:text="Light traffic on ss16"
android:textColor="#color/teal_200"
android:textSize="24sp" />
</LinearLayout>
<ImageView
android:id="#+id/iv_map"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:contentDescription="Assigned delivery boy"
android:scaleType="fitXY"
android:src="#drawable/bg_map" />
<TextView
android:id="#+id/tv_footer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:layout_below="#+id/tv_heading"
android:text="It is just an example!"
android:textColor="#color/grey_500"
android:textStyle="bold"
android:textSize="24sp" />
</LinearLayout>
</android.support.v7.widget.CardView>
I have replaced your mapFragment (presumably) with imageView to reduce complications.
Update: As the question now addresses the infamous "round corner" problem, this is actually by design. Yes, it is a big flaw. But the solution (as given in docs Here) would be to use card_view:cardPreventCornerOverlap="false" attribute (which I don't think does anything good because it just makes card square again).
See these questions for a good reference to this problem:
Appcompat CardView and Picasso no rounded Corners
Make ImageView fit width of CardView
From my understanding, you can change the colour of a CardView in it's entirety but not parts of it. I'm not sure how that would even work.
What you can do, is nest a TextView with the title within the CardView, then colour the background of the TextView to the colour you would like. Use appropriate margins/padding for a uniform look. Add a background to your TextView and see what you get.
Your TextView is already using the match_parent parameter on your android:layout_width="" so you would only need to add the background like so:
<TextView
android:id="#+id/textview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
android:textStyle="bold"
android:layout_gravity="center"
android:background="#FF4444"/>
To change the entire CardView colour like I mentioned at the beginning you can do it the same way or programmatically like so:
cardView.setCardBackgroundColor(COLOURHERE);
So, I'm trying to create a screen that when clicking a button this takes the data from some EditText and add them to a ListView item, now I know there are a lot of examples on the web and I've done them and they work, but when I took them to what I want to do it just adds one item and stops working it doesn't throw any exception or anything, it just add one item, this is what I got so far...
create_class.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.eduardolaguna.mariela.app.activities.CreateClass">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="#+id/cc_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/cc_hint_class_name" />
<View
android:id="#+id/cc_divider1"
style="#style/Divider"
android:layout_below="#+id/cc_name" />
<TextView
android:id="#+id/tv_cc_professors_data"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/cc_divider1"
android:text="#string/cc_tv_professors_data" />
<EditText
android:id="#+id/cc_professors_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/tv_cc_professors_data"
android:hint="#string/cc__hint_professors_name"
android:inputType="textPersonName|textAutoComplete|textAutoCorrect" />
<EditText
android:id="#+id/cc_professors_email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/cc_professors_name"
android:hint="#string/cc_hint_professors_email"
android:inputType="textEmailAddress" />
<EditText
android:id="#+id/cc_professors_phonenumber"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/cc_professors_email"
android:hint="#string/cc_hint_professors_phonenumber"
android:inputType="phone" />
<View
android:id="#+id/cc_divider2"
style="#style/Divider"
android:layout_below="#id/cc_professors_phonenumber" />
<TextView
android:id="#+id/tv_cc_schedule"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/cc_divider2"
android:text="#string/cc_tv_class_schedule" />
<Spinner
android:id="#+id/sp_cc_day_of_the_week"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/tv_cc_schedule"
android:entries="#array/dow" />
<EditText
android:id="#+id/cc_from_schedule"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#id/sp_cc_day_of_the_week"
android:hint="#string/cc_hint_from_schedule"
android:inputType="time" />
<EditText
android:id="#+id/cc_to_schedule"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_below="#id/sp_cc_day_of_the_week"
android:layout_toRightOf="#id/cc_from_schedule"
android:hint="#string/cc_hint_to_schedule"
android:inputType="time" />
<EditText
android:id="#+id/cc_floor_number"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_below="#id/sp_cc_day_of_the_week"
android:layout_toRightOf="#id/cc_to_schedule"
android:hint="#string/cc_hint_floor"
android:inputType="number" />
<EditText
android:id="#+id/cc_classroom"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:layout_below="#id/sp_cc_day_of_the_week"
android:layout_toRightOf="#id/cc_floor_number"
android:hint="#string/cc_hint_classroom" />
<Button
android:id="#+id/btn_cc_add_schedule"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/cc_from_schedule"
android:text="#string/cc_add_schedule" />
<ListView
android:id="#+id/cc_schedule_list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/btn_cc_add_schedule" />
</RelativeLayout>
</ScrollView>
</LinearLayout>
schedule_item.xml
<?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/sch_day_of_the_week"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Miércoles"
android:textSize="60dp" />
<TextView
android:id="#+id/sch_from"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="5:45"
android:textSize="20dp" />
<TextView
android:id="#+id/sch_to"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="7:15"
android:textSize="20dp" />
<TextView
android:id="#+id/sch_floor"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="7"
android:textSize="20dp" />
<TextView
android:id="#+id/sch_clasroom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="lab1"
android:textSize="20dp" />
</LinearLayout>
ScheduleAdapter.java
public class ScheduleAdapter extends ArrayAdapter<Actividad> {
private int layoutResourceId;
private LayoutInflater inflater;
private List<Actividad> shifts;
public ScheduleAdapter(Context context, int resource, List<Actividad> objects) {
super(context, resource, objects);
layoutResourceId = resource;
shifts = objects;
inflater = LayoutInflater.from(context);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
Holder holder = null;
row = inflater.inflate(layoutResourceId, null);
holder = new Holder();
holder.actividad = shifts.get(position);
holder.dow = (TextView) row.findViewById(R.id.sch_day_of_the_week);
holder.fromTXT = (TextView) row.findViewById(R.id.sch_from);
holder.toTXT = (TextView) row.findViewById(R.id.sch_to);
holder.floorTXT = (TextView) row.findViewById(R.id.sch_floor);
holder.roomTXT = (TextView) row.findViewById(R.id.sch_clasroom);
setupItem(holder);
row.setTag(holder);
return row;
}
private void setupItem(Holder holder) {
holder.dow.setText(holder.actividad.getDiaDeLaSemana());
holder.fromTXT.setText(holder.actividad.getDesdeStr());
holder.toTXT.setText(holder.actividad.getHastaStr());
holder.floorTXT.setText(holder.actividad.getPiso());
holder.roomTXT.setText(holder.actividad.getSalon());
}
public static class Holder {
Actividad actividad;
TextView dow;
TextView fromTXT;
TextView toTXT;
TextView floorTXT;
TextView roomTXT;
}
}
And finally the CreateClass.java
public class CreateClass extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.create_class);
ListView view = (ListView) findViewById(R.id.cc_schedule_list);
final ScheduleAdapter adapter = new ScheduleAdapter(getApplicationContext(), R.layout.schedule_item, new ArrayList<Actividad>());
view.setAdapter(adapter);
Button addSchedule = (Button) findViewById(R.id.btn_cc_add_schedule);
addSchedule.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Resources res = getResources();
ListView scheduleView = (ListView) findViewById(R.id.cc_schedule_list);
ScheduleAdapter adapter1 = (ScheduleAdapter) scheduleView.getAdapter();
Actividad act = new Actividad(TipoEvento.CLASE);
Spinner dow = (Spinner) findViewById(R.id.sp_cc_day_of_the_week);
act.setDiaDeLaSemana(dow.getSelectedItem().toString());
TextView from = (TextView) findViewById(R.id.cc_from_schedule);
act.setDesdeStr(res.getString(R.string.from) + ": " + from.getText().toString());
TextView to = (TextView) findViewById(R.id.cc_to_schedule);
act.setHastaStr(res.getString(R.string.to) + ": " + to.getText().toString());
TextView floor = (TextView) findViewById(R.id.cc_floor_number);
act.setPiso(res.getString(R.string.floor) + ": " + floor.getText().toString());
TextView classroom = (TextView) findViewById(R.id.cc_classroom);
act.setSalon(res.getString(R.string.classroom) + ": " + classroom.getText().toString());
adapter1.add(act);
}
});
}
}
You should instantiate your adapter with the Activity context, not the application context.
Storing a copy of the constructed list in shifts can be dangerous.
Don't store shifts in the Holder. Only views go in there.
When populating the convertView, reference the internal getItem(position) method to obtain the Actividad data...not your shifts variable.
You're also using the ViewHolder paradigm incorrectly. Example here.
Turns out the problem is the ListView is inside the ScrollView, this does not work properly when the list grows dynamically, I move it out the ScrollView and it works like a charm.
This was according to #Romain Guy a developer in the Android project, where he stated that
Using a ListView to make it not scroll is extremely expensive and goes against the whole purpose of ListView. You should NOT do this. Just use a LinearLayout instead.
So I use a LinearLayout to draw the new items on the layout.
I have listview that i want to fill the whole screen,There are four items in listview. It leaves empty space below after four items are filled.You can see in the screenshot. It leaves the blank space. I want whole screen to be covered.
I would like to have like this:
Here is the source Code
MainActivity.java.
public class MainActivity extends Activity {
ListView resultPane;
List<Taskinfo> list;
CustomAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
resultPane = (ListView) findViewById(R.id.mylist);
list = new ArrayList<Taskinfo>();
Resources res = getResources(); // resource handle
Drawable drawable = res.getDrawable(R.drawable.browse_home);
list.add(new Taskinfo("Browse", drawable));
drawable = res.getDrawable(R.drawable.jewelry);
list.add(new Taskinfo("Whats New", drawable));
drawable = res.getDrawable(R.drawable.show);
list.add(new Taskinfo("Upcoming Show", drawable));
drawable = res.getDrawable(R.drawable.contact);
list.add(new Taskinfo("Contact Us", drawable));
adapter = new CustomAdapter(this, list);
resultPane.setAdapter(adapter);
}
}
CustomAdapter.java
public class CustomAdapter extends BaseAdapter {
private Context context;
private List<Taskinfo> list;
public CustomAdapter(Context context, List<Taskinfo> list) {
this.context = context;
this.list = list;
}
public View getView(int index, View view, final ViewGroup parent) {
if (view == null) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
view = inflater.inflate(R.layout.single_list_item, parent, false);
}
Taskinfo t = list.get(index);
RelativeLayout l = (RelativeLayout) view
.findViewById(R.id.testrelative);
l.setBackgroundDrawable(t.getImage());
TextView textView = (TextView) view.findViewById(R.id.title);
textView.setText(t.getName());
return view;
}
}
single_list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/testrelative"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#drawable/browse_home"
android:orientation="horizontal"
android:padding="5dip" >
<!-- ListRow Left sied Thumbnail image -->
<LinearLayout
android:id="#+id/thumbnail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginRight="5dip"
android:padding="3dip" >
</LinearLayout>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="16dp"
android:text=""
android:textColor="#040404"
android:textSize="15dip"
android:textStyle="bold"
android:typeface="sans" />
</RelativeLayout>
activity_main.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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="45sp"
android:id="#+id/llayout"
android:background="#drawable/navbar"
android:padding="3sp" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_weight="1"
android:gravity="center_horizontal"
android:text="Golden Stone"
android:textColor="#color/white"
android:textSize="20sp" >
</TextView>
</LinearLayout>
<ListView
android:id="#+id/mylist"
android:layout_width="match_parent"
android:layout_below="#id/llayout"
android:layout_height="match_parent" >
</ListView>
</RelativeLayout>
Using ListView in such case is strange and unnecessary. Think about your constraints (like: what if items overflow?) and just use a proper layout manager. Like a vertical LinearLayout with the last item having a non-zero layout weight.
ListViews make sense only if you need an abstraction that generates list items on-the-fly.
You would want to set a background on the ListView. Currently your view should be going to the bottom, but the background of the ListView is transparent, so setting it white should achieve what you're asking.
<ListView ...
android:background="#android:color/white"
... />
if there are so few items, you can use the LinearLayout instead, and give weights for each of its items.
However, do note that android supports many devices and screens, so you might want to have a limitation of how small each row would be.
anyway, in case you wish to make each row the fitting height, you can check its size and then divide by the number of items.
in order to get the size of the listView , you can use this small snippet i've made .