How to show imageViews in RecyclerView (Android)
I create a image's array : (logos.xml)
<integer-array name="icons"><Item>@drawable/pic_01 to @drawable/pic_04<item>
Then , in my class Function : I have
public Function(String name , int icon) { this.icon = icon }
public void getIcon() { return icon; }
Final , in FunctionAdapter , I get Imageview
punlic FunctionAdapter(Context context) { icons = context.getResources().getIntArray(R.array.icons);
my question is in onBindViewHolde(@NonNull FunViewHolder holder, int position)
holder.itemImageView.setImageResource(icons[position])
is not working , I want to know what am I miss ? Thanks Help.
I want to change my ImageView (pic1 to pic4)
my Adapter :
public class FunctionAdapter extends RecyclerView.Adapter<FunctionAdapter.FunViewHolder>
{
private final String functions;
private final int icons;
Context context;
public FunctionAdapter(Context context){
this.context = context;
functions = context.getResources().getStringArray(R.array.functions);
icons = context.getResources().getIntArray(R.array.icons);
}
public FunViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
View view = LayoutInflater.from(context).inflate(R.layout.group_layout, parent,false);
return new FunViewHolder(view);
}
public void onBindViewHolder(@NonNull FunViewHolder holder, int position) {
holder.nameText.setText(functions[position]);
holder.itemImageView.setImageResource(icons[position]);
}
public int getItemCount() { return functions.length; }
public class FunViewHolder extends RecyclerView.ViewHolder{
TextView nameText;
ImageView itemImageView;
public FunViewHolder(@NonNull View itemView) {
super(itemView);
nameText = itemView.findViewById(R.id.group_title);
itemImageView = itemView.findViewById(R.id.group_logo);
}
}
Update :
my mistake , logos.xml maybe the problem , but I don't know Why?
I decide to edit my icons :
private final int icons = new int{R.drawable.pic_01, R.drawable.pic_02, R.drawable.pic_03, R.drawable.pic_04} ;
then , pics will change.
android android-recyclerview imageview adapter
add a comment |
I create a image's array : (logos.xml)
<integer-array name="icons"><Item>@drawable/pic_01 to @drawable/pic_04<item>
Then , in my class Function : I have
public Function(String name , int icon) { this.icon = icon }
public void getIcon() { return icon; }
Final , in FunctionAdapter , I get Imageview
punlic FunctionAdapter(Context context) { icons = context.getResources().getIntArray(R.array.icons);
my question is in onBindViewHolde(@NonNull FunViewHolder holder, int position)
holder.itemImageView.setImageResource(icons[position])
is not working , I want to know what am I miss ? Thanks Help.
I want to change my ImageView (pic1 to pic4)
my Adapter :
public class FunctionAdapter extends RecyclerView.Adapter<FunctionAdapter.FunViewHolder>
{
private final String functions;
private final int icons;
Context context;
public FunctionAdapter(Context context){
this.context = context;
functions = context.getResources().getStringArray(R.array.functions);
icons = context.getResources().getIntArray(R.array.icons);
}
public FunViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
View view = LayoutInflater.from(context).inflate(R.layout.group_layout, parent,false);
return new FunViewHolder(view);
}
public void onBindViewHolder(@NonNull FunViewHolder holder, int position) {
holder.nameText.setText(functions[position]);
holder.itemImageView.setImageResource(icons[position]);
}
public int getItemCount() { return functions.length; }
public class FunViewHolder extends RecyclerView.ViewHolder{
TextView nameText;
ImageView itemImageView;
public FunViewHolder(@NonNull View itemView) {
super(itemView);
nameText = itemView.findViewById(R.id.group_title);
itemImageView = itemView.findViewById(R.id.group_logo);
}
}
Update :
my mistake , logos.xml maybe the problem , but I don't know Why?
I decide to edit my icons :
private final int icons = new int{R.drawable.pic_01, R.drawable.pic_02, R.drawable.pic_03, R.drawable.pic_04} ;
then , pics will change.
android android-recyclerview imageview adapter
can you add the error?
– Anjani Mittal
Nov 15 '18 at 7:01
@ Anjani Mittal , the error is no imageView show in RecyclerView .
– Tzuyu Lin
Nov 15 '18 at 7:09
can you post the whole adapter class
– Kevin Kurien
Nov 15 '18 at 7:17
use Picasso library to set image
– Anjani Mittal
Nov 15 '18 at 8:41
add a comment |
I create a image's array : (logos.xml)
<integer-array name="icons"><Item>@drawable/pic_01 to @drawable/pic_04<item>
Then , in my class Function : I have
public Function(String name , int icon) { this.icon = icon }
public void getIcon() { return icon; }
Final , in FunctionAdapter , I get Imageview
punlic FunctionAdapter(Context context) { icons = context.getResources().getIntArray(R.array.icons);
my question is in onBindViewHolde(@NonNull FunViewHolder holder, int position)
holder.itemImageView.setImageResource(icons[position])
is not working , I want to know what am I miss ? Thanks Help.
I want to change my ImageView (pic1 to pic4)
my Adapter :
public class FunctionAdapter extends RecyclerView.Adapter<FunctionAdapter.FunViewHolder>
{
private final String functions;
private final int icons;
Context context;
public FunctionAdapter(Context context){
this.context = context;
functions = context.getResources().getStringArray(R.array.functions);
icons = context.getResources().getIntArray(R.array.icons);
}
public FunViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
View view = LayoutInflater.from(context).inflate(R.layout.group_layout, parent,false);
return new FunViewHolder(view);
}
public void onBindViewHolder(@NonNull FunViewHolder holder, int position) {
holder.nameText.setText(functions[position]);
holder.itemImageView.setImageResource(icons[position]);
}
public int getItemCount() { return functions.length; }
public class FunViewHolder extends RecyclerView.ViewHolder{
TextView nameText;
ImageView itemImageView;
public FunViewHolder(@NonNull View itemView) {
super(itemView);
nameText = itemView.findViewById(R.id.group_title);
itemImageView = itemView.findViewById(R.id.group_logo);
}
}
Update :
my mistake , logos.xml maybe the problem , but I don't know Why?
I decide to edit my icons :
private final int icons = new int{R.drawable.pic_01, R.drawable.pic_02, R.drawable.pic_03, R.drawable.pic_04} ;
then , pics will change.
android android-recyclerview imageview adapter
I create a image's array : (logos.xml)
<integer-array name="icons"><Item>@drawable/pic_01 to @drawable/pic_04<item>
Then , in my class Function : I have
public Function(String name , int icon) { this.icon = icon }
public void getIcon() { return icon; }
Final , in FunctionAdapter , I get Imageview
punlic FunctionAdapter(Context context) { icons = context.getResources().getIntArray(R.array.icons);
my question is in onBindViewHolde(@NonNull FunViewHolder holder, int position)
holder.itemImageView.setImageResource(icons[position])
is not working , I want to know what am I miss ? Thanks Help.
I want to change my ImageView (pic1 to pic4)
my Adapter :
public class FunctionAdapter extends RecyclerView.Adapter<FunctionAdapter.FunViewHolder>
{
private final String functions;
private final int icons;
Context context;
public FunctionAdapter(Context context){
this.context = context;
functions = context.getResources().getStringArray(R.array.functions);
icons = context.getResources().getIntArray(R.array.icons);
}
public FunViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
View view = LayoutInflater.from(context).inflate(R.layout.group_layout, parent,false);
return new FunViewHolder(view);
}
public void onBindViewHolder(@NonNull FunViewHolder holder, int position) {
holder.nameText.setText(functions[position]);
holder.itemImageView.setImageResource(icons[position]);
}
public int getItemCount() { return functions.length; }
public class FunViewHolder extends RecyclerView.ViewHolder{
TextView nameText;
ImageView itemImageView;
public FunViewHolder(@NonNull View itemView) {
super(itemView);
nameText = itemView.findViewById(R.id.group_title);
itemImageView = itemView.findViewById(R.id.group_logo);
}
}
Update :
my mistake , logos.xml maybe the problem , but I don't know Why?
I decide to edit my icons :
private final int icons = new int{R.drawable.pic_01, R.drawable.pic_02, R.drawable.pic_03, R.drawable.pic_04} ;
then , pics will change.
android android-recyclerview imageview adapter
android android-recyclerview imageview adapter
edited Nov 15 '18 at 8:52
Tzuyu Lin
asked Nov 15 '18 at 6:57
Tzuyu LinTzuyu Lin
35
35
can you add the error?
– Anjani Mittal
Nov 15 '18 at 7:01
@ Anjani Mittal , the error is no imageView show in RecyclerView .
– Tzuyu Lin
Nov 15 '18 at 7:09
can you post the whole adapter class
– Kevin Kurien
Nov 15 '18 at 7:17
use Picasso library to set image
– Anjani Mittal
Nov 15 '18 at 8:41
add a comment |
can you add the error?
– Anjani Mittal
Nov 15 '18 at 7:01
@ Anjani Mittal , the error is no imageView show in RecyclerView .
– Tzuyu Lin
Nov 15 '18 at 7:09
can you post the whole adapter class
– Kevin Kurien
Nov 15 '18 at 7:17
use Picasso library to set image
– Anjani Mittal
Nov 15 '18 at 8:41
can you add the error?
– Anjani Mittal
Nov 15 '18 at 7:01
can you add the error?
– Anjani Mittal
Nov 15 '18 at 7:01
@ Anjani Mittal , the error is no imageView show in RecyclerView .
– Tzuyu Lin
Nov 15 '18 at 7:09
@ Anjani Mittal , the error is no imageView show in RecyclerView .
– Tzuyu Lin
Nov 15 '18 at 7:09
can you post the whole adapter class
– Kevin Kurien
Nov 15 '18 at 7:17
can you post the whole adapter class
– Kevin Kurien
Nov 15 '18 at 7:17
use Picasso library to set image
– Anjani Mittal
Nov 15 '18 at 8:41
use Picasso library to set image
– Anjani Mittal
Nov 15 '18 at 8:41
add a comment |
3 Answers
3
active
oldest
votes
you have to use String instead of String on constructor.
use
public Function(String name , int icon) { this.icon = icon }
instead of
public Function(String name , int icon) { this.icon = icon }
add a comment |
Use setImageDrawable() method to load local drawables instead of using setImageResource.
holder.itemImageView.setImageDrawable(context.getResources().getDrawable(icons[position]))
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
add a comment |
try this code
private int confirmIcon = {R.drawable.ic_action_green,
R.drawable.ic_action_yellow,
R.drawable.ic_action_red};
switch ("your condition") {
case 0:
holder.ivConfirm.setImageResource(confirmIcon[0]);
break;
case 1:
holder.ivConfirm.setImageResource(confirmIcon[1]);
break;
case 2:
holder.ivConfirm.setImageResource(confirmIcon[2]);
break;
}
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
you have to use String instead of String on constructor.
use
public Function(String name , int icon) { this.icon = icon }
instead of
public Function(String name , int icon) { this.icon = icon }
add a comment |
you have to use String instead of String on constructor.
use
public Function(String name , int icon) { this.icon = icon }
instead of
public Function(String name , int icon) { this.icon = icon }
add a comment |
you have to use String instead of String on constructor.
use
public Function(String name , int icon) { this.icon = icon }
instead of
public Function(String name , int icon) { this.icon = icon }
you have to use String instead of String on constructor.
use
public Function(String name , int icon) { this.icon = icon }
instead of
public Function(String name , int icon) { this.icon = icon }
answered Nov 15 '18 at 7:16
dinesh sharmadinesh sharma
11
11
add a comment |
add a comment |
Use setImageDrawable() method to load local drawables instead of using setImageResource.
holder.itemImageView.setImageDrawable(context.getResources().getDrawable(icons[position]))
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
add a comment |
Use setImageDrawable() method to load local drawables instead of using setImageResource.
holder.itemImageView.setImageDrawable(context.getResources().getDrawable(icons[position]))
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
add a comment |
Use setImageDrawable() method to load local drawables instead of using setImageResource.
holder.itemImageView.setImageDrawable(context.getResources().getDrawable(icons[position]))
Use setImageDrawable() method to load local drawables instead of using setImageResource.
holder.itemImageView.setImageDrawable(context.getResources().getDrawable(icons[position]))
edited Nov 15 '18 at 8:16
answered Nov 15 '18 at 7:21
VickyVicky
3,70712326
3,70712326
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
add a comment |
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
I get NullPointerException error messages.
– Tzuyu Lin
Nov 15 '18 at 8:09
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
Then use context.getResources().getDrawable()
– Vicky
Nov 15 '18 at 8:16
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
I get "android.content.res.Resources$NotFoundException: Resource ID #0x0 "
– Tzuyu Lin
Nov 15 '18 at 8:34
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
Then your @drawable/pic_01 is not in drawable folder which you mentioned in logos.xml
– Vicky
Nov 15 '18 at 13:17
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
@tzuyuLin Is it solve your problem?
– Vicky
Nov 24 '18 at 7:21
add a comment |
try this code
private int confirmIcon = {R.drawable.ic_action_green,
R.drawable.ic_action_yellow,
R.drawable.ic_action_red};
switch ("your condition") {
case 0:
holder.ivConfirm.setImageResource(confirmIcon[0]);
break;
case 1:
holder.ivConfirm.setImageResource(confirmIcon[1]);
break;
case 2:
holder.ivConfirm.setImageResource(confirmIcon[2]);
break;
}
add a comment |
try this code
private int confirmIcon = {R.drawable.ic_action_green,
R.drawable.ic_action_yellow,
R.drawable.ic_action_red};
switch ("your condition") {
case 0:
holder.ivConfirm.setImageResource(confirmIcon[0]);
break;
case 1:
holder.ivConfirm.setImageResource(confirmIcon[1]);
break;
case 2:
holder.ivConfirm.setImageResource(confirmIcon[2]);
break;
}
add a comment |
try this code
private int confirmIcon = {R.drawable.ic_action_green,
R.drawable.ic_action_yellow,
R.drawable.ic_action_red};
switch ("your condition") {
case 0:
holder.ivConfirm.setImageResource(confirmIcon[0]);
break;
case 1:
holder.ivConfirm.setImageResource(confirmIcon[1]);
break;
case 2:
holder.ivConfirm.setImageResource(confirmIcon[2]);
break;
}
try this code
private int confirmIcon = {R.drawable.ic_action_green,
R.drawable.ic_action_yellow,
R.drawable.ic_action_red};
switch ("your condition") {
case 0:
holder.ivConfirm.setImageResource(confirmIcon[0]);
break;
case 1:
holder.ivConfirm.setImageResource(confirmIcon[1]);
break;
case 2:
holder.ivConfirm.setImageResource(confirmIcon[2]);
break;
}
answered Nov 15 '18 at 10:23
veerendranveerendran
364
364
add a comment |
add a comment |
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can you add the error?
– Anjani Mittal
Nov 15 '18 at 7:01
@ Anjani Mittal , the error is no imageView show in RecyclerView .
– Tzuyu Lin
Nov 15 '18 at 7:09
can you post the whole adapter class
– Kevin Kurien
Nov 15 '18 at 7:17
use Picasso library to set image
– Anjani Mittal
Nov 15 '18 at 8:41