Mixing
Android: Using findViewById() with a string / in a loop
55
I'm making an android application, where there is a view composed of hundreds of buttons, each with a specific callback. Now, I'd like to set these callbacks using a loop, instead of having to write hundreds of lines of code (for each one of the buttons).
My question is: How can I use findViewById without statically having to type in each button id?
Here is what I would like to do:
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
buttons[i][j] = ((Button) findViewById(R.id.buttonID));
buttons[i][j].setOnClickListener(this);
}
}
Thanks in advance!
android button clicklistener edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
asked Feb 1 '11 at 16:35
user573536user573536
9553108
add a comment |
55
I'm making an android application, where there is a view composed of hundreds of buttons, each with a specific callback. Now, I'd like to set these callbacks using a loop, instead of having to write hundreds of lines of code (for each one of the buttons).
My question is: How can I use findViewById without statically having to type in each button id?
Here is what I would like to do:
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
buttons[i][j] = ((Button) findViewById(R.id.buttonID));
buttons[i][j].setOnClickListener(this);
}
}
Thanks in advance!
android button clicklistener edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
asked Feb 1 '11 at 16:35
user573536user573536
9553108
add a comment |
55
55
55
25
I'm making an android application, where there is a view composed of hundreds of buttons, each with a specific callback. Now, I'd like to set these callbacks using a loop, instead of having to write hundreds of lines of code (for each one of the buttons).
My question is: How can I use findViewById without statically having to type in each button id?
Here is what I would like to do:
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
buttons[i][j] = ((Button) findViewById(R.id.buttonID));
buttons[i][j].setOnClickListener(this);
}
}
Thanks in advance!
android button clicklistener edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
asked Feb 1 '11 at 16:35
user573536user573536
9553108
I'm making an android application, where there is a view composed of hundreds of buttons, each with a specific callback. Now, I'd like to set these callbacks using a loop, instead of having to write hundreds of lines of code (for each one of the buttons).
My question is: How can I use findViewById without statically having to type in each button id?
Here is what I would like to do:
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
buttons[i][j] = ((Button) findViewById(R.id.buttonID));
buttons[i][j].setOnClickListener(this);
}
}
Thanks in advance!
android button clicklistener android button clicklistener edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
asked Feb 1 '11 at 16:35
user573536user573536
9553108
edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
asked Feb 1 '11 at 16:35
user573536user573536
9553108
edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
edited Feb 1 '11 at 16:56
Heiko Rupp
22.3k1170113
22.3k1170113
asked Feb 1 '11 at 16:35
user573536user573536
9553108
asked Feb 1 '11 at 16:35
user573536user573536
9553108
asked Feb 1 '11 at 16:35
user573536user573536
9553108
9553108
add a comment |
add a comment |
7 Answers
7
active
oldest
votes
94
You should using getIdentifier()
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
int resID = getResources().getIdentifier(buttonID, "id", getPackageName());
buttons[i][j] = ((Button) findViewById(resID));
buttons[i][j].setOnClickListener(this);
}
}
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
22
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
2
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
add a comment |
4
You can try making an int that holds all of your button IDs, and then iterate over that:
int buttonIDs = new int {R.id.button1ID, R.id.button2ID, R.id.button3ID, ... }
for(int i=0; i<buttonIDs.length; i++) {
Button b = (Button) findViewById(buttonIDs[i]);
b.setOnClickListener(this);
}
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
add a comment |
3
Take a look at these answers:
- Android and getting a view with id cast as a string
- Array of ImageButtons, assign R.view.id from a variable
edited May 23 '17 at 11:55
Community♦
11
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
1
@user573536 be aware that usinggetResources().getIdentifier()in a loop can cause performance to degrade when you have a large number of lookups.
– dave.c
Feb 1 '11 at 16:47
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
add a comment |
1
you can Use tag if you want to access.
in onClick
int i=Integer.parseInt(v.getTag);
But you cant access that button like this.
simply create button programatically
by Button b=new Button(this);
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
add a comment |
0
create Custom Button in java code rather in Xml as i shown below
Button bs_text= new Button[some_value];
for(int z=0;z<some_value;z++)
{
try
{
bs_text[z] = (Button) new Button(this);
}
catch(ArrayIndexOutOfBoundsException e)
{
Log.d("ArrayIndexOutOfBoundsException",e.toString());
}
}
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
add a comment |
0
If your top level view only has those button views as children, you could do
for (int i = 0 ; i < yourView.getChildCount(); i++) {
Button b = (Button) yourView.getChildAt(i);
b.setOnClickListener(xxxx);
}
If there are more views present you'd need to check if the selected one is one of your buttons.
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares withgetResources().getIdentifier().
– dave.c
Feb 1 '11 at 16:58
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
add a comment |
0
If for some reason you can't use the getIdentifier() function and/or you know the possible id's beforehand, you could use a switch.
int id = 0;
switch(name) {
case "x":
id = R.id.x;
break;
etc.etc.
}
String value = findViewById(id);
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
add a comment |
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7 Answers
7
active
oldest
votes
7 Answers
7
active
oldest
votes
active
oldest
votes
active
oldest
votes
94
You should using getIdentifier()
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
int resID = getResources().getIdentifier(buttonID, "id", getPackageName());
buttons[i][j] = ((Button) findViewById(resID));
buttons[i][j].setOnClickListener(this);
}
}
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
22
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
2
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
add a comment |
94
You should using getIdentifier()
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
int resID = getResources().getIdentifier(buttonID, "id", getPackageName());
buttons[i][j] = ((Button) findViewById(resID));
buttons[i][j].setOnClickListener(this);
}
}
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
22
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
2
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
add a comment |
94
94
94
You should using getIdentifier()
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
int resID = getResources().getIdentifier(buttonID, "id", getPackageName());
buttons[i][j] = ((Button) findViewById(resID));
buttons[i][j].setOnClickListener(this);
}
}
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
You should using getIdentifier()
for(int i=0; i<some_value; i++) {
for(int j=0; j<some_other_value; j++) {
String buttonID = "btn" + i + "-" + j;
int resID = getResources().getIdentifier(buttonID, "id", getPackageName());
buttons[i][j] = ((Button) findViewById(resID));
buttons[i][j].setOnClickListener(this);
}
}
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
edited Sep 15 '16 at 7:10
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
answered Feb 1 '11 at 16:44
WarrenFaithWarrenFaith
50k21124137
50k21124137
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
22
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
2
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
add a comment |
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
22
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
2
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
Thanks, that was what I was looking for.
– user573536
Feb 1 '11 at 17:20
22
22
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
"com.sample.project" can be replaced by getPackageName().
– jenzz
Nov 17 '12 at 17:41
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
I'd seen other answers very similar to this, but the second arg being "id" was the last thing I needed for it to work.
– Dave C
Mar 28 '16 at 3:39
2
2
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
Note that in my experience doing this gives you very poor performance.
– ThomasW
Jun 28 '16 at 3:56
add a comment |
4
You can try making an int that holds all of your button IDs, and then iterate over that:
int buttonIDs = new int {R.id.button1ID, R.id.button2ID, R.id.button3ID, ... }
for(int i=0; i<buttonIDs.length; i++) {
Button b = (Button) findViewById(buttonIDs[i]);
b.setOnClickListener(this);
}
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
add a comment |
4
You can try making an int that holds all of your button IDs, and then iterate over that:
int buttonIDs = new int {R.id.button1ID, R.id.button2ID, R.id.button3ID, ... }
for(int i=0; i<buttonIDs.length; i++) {
Button b = (Button) findViewById(buttonIDs[i]);
b.setOnClickListener(this);
}
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
add a comment |
4
4
4
You can try making an int that holds all of your button IDs, and then iterate over that:
int buttonIDs = new int {R.id.button1ID, R.id.button2ID, R.id.button3ID, ... }
for(int i=0; i<buttonIDs.length; i++) {
Button b = (Button) findViewById(buttonIDs[i]);
b.setOnClickListener(this);
}
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
You can try making an int that holds all of your button IDs, and then iterate over that:
int buttonIDs = new int {R.id.button1ID, R.id.button2ID, R.id.button3ID, ... }
for(int i=0; i<buttonIDs.length; i++) {
Button b = (Button) findViewById(buttonIDs[i]);
b.setOnClickListener(this);
}
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
answered Feb 1 '11 at 16:39
Rick BarkhouseRick Barkhouse
6771512
6771512
add a comment |
add a comment |
3
Take a look at these answers:
- Android and getting a view with id cast as a string
- Array of ImageButtons, assign R.view.id from a variable
edited May 23 '17 at 11:55
Community♦
11
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
1
@user573536 be aware that usinggetResources().getIdentifier()in a loop can cause performance to degrade when you have a large number of lookups.
– dave.c
Feb 1 '11 at 16:47
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
add a comment |
3
Take a look at these answers:
- Android and getting a view with id cast as a string
- Array of ImageButtons, assign R.view.id from a variable
edited May 23 '17 at 11:55
Community♦
11
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
1
@user573536 be aware that usinggetResources().getIdentifier()in a loop can cause performance to degrade when you have a large number of lookups.
– dave.c
Feb 1 '11 at 16:47
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
add a comment |
3
3
3
Take a look at these answers:
- Android and getting a view with id cast as a string
- Array of ImageButtons, assign R.view.id from a variable
edited May 23 '17 at 11:55
Community♦
11
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
Take a look at these answers:
- Android and getting a view with id cast as a string
- Array of ImageButtons, assign R.view.id from a variable
edited May 23 '17 at 11:55
Community♦
11
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
edited May 23 '17 at 11:55
Community♦
11
edited May 23 '17 at 11:55
Community♦
11
edited May 23 '17 at 11:55
Community♦
11
11
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
answered Feb 1 '11 at 16:40
CristianCristian
169k53334253
169k53334253
1
@user573536 be aware that usinggetResources().getIdentifier()in a loop can cause performance to degrade when you have a large number of lookups.
– dave.c
Feb 1 '11 at 16:47
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
add a comment |
1
@user573536 be aware that usinggetResources().getIdentifier()in a loop can cause performance to degrade when you have a large number of lookups.
– dave.c
Feb 1 '11 at 16:47
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
1
1
@user573536 be aware that using
getResources().getIdentifier() in a loop can cause performance to degrade when you have a large number of lookups.– dave.c
Feb 1 '11 at 16:47
@user573536 be aware that using
getResources().getIdentifier() in a loop can cause performance to degrade when you have a large number of lookups.– dave.c
Feb 1 '11 at 16:47
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
You are right. I recommend that approach only when there's a sequence or order for the resources AND there are a lot of them (creating an array of 50 resources smells).
– Cristian
Feb 1 '11 at 17:03
add a comment |
1
you can Use tag if you want to access.
in onClick
int i=Integer.parseInt(v.getTag);
But you cant access that button like this.
simply create button programatically
by Button b=new Button(this);
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
add a comment |
1
you can Use tag if you want to access.
in onClick
int i=Integer.parseInt(v.getTag);
But you cant access that button like this.
simply create button programatically
by Button b=new Button(this);
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
add a comment |
1
1
1
you can Use tag if you want to access.
in onClick
int i=Integer.parseInt(v.getTag);
But you cant access that button like this.
simply create button programatically
by Button b=new Button(this);
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
you can Use tag if you want to access.
in onClick
int i=Integer.parseInt(v.getTag);
But you cant access that button like this.
simply create button programatically
by Button b=new Button(this);
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
edited Mar 10 '16 at 18:51
cricket_007
80k1142110
80k1142110
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
answered Feb 1 '11 at 16:42
Ganapathy CGanapathy C
4,81053668
4,81053668
add a comment |
add a comment |
0
create Custom Button in java code rather in Xml as i shown below
Button bs_text= new Button[some_value];
for(int z=0;z<some_value;z++)
{
try
{
bs_text[z] = (Button) new Button(this);
}
catch(ArrayIndexOutOfBoundsException e)
{
Log.d("ArrayIndexOutOfBoundsException",e.toString());
}
}
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
add a comment |
0
create Custom Button in java code rather in Xml as i shown below
Button bs_text= new Button[some_value];
for(int z=0;z<some_value;z++)
{
try
{
bs_text[z] = (Button) new Button(this);
}
catch(ArrayIndexOutOfBoundsException e)
{
Log.d("ArrayIndexOutOfBoundsException",e.toString());
}
}
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
add a comment |
0
0
0
create Custom Button in java code rather in Xml as i shown below
Button bs_text= new Button[some_value];
for(int z=0;z<some_value;z++)
{
try
{
bs_text[z] = (Button) new Button(this);
}
catch(ArrayIndexOutOfBoundsException e)
{
Log.d("ArrayIndexOutOfBoundsException",e.toString());
}
}
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
create Custom Button in java code rather in Xml as i shown below
Button bs_text= new Button[some_value];
for(int z=0;z<some_value;z++)
{
try
{
bs_text[z] = (Button) new Button(this);
}
catch(ArrayIndexOutOfBoundsException e)
{
Log.d("ArrayIndexOutOfBoundsException",e.toString());
}
}
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
answered Feb 1 '11 at 16:43
Sankar GaneshSankar Ganesh
10.2k114985
10.2k114985
add a comment |
add a comment |
0
If your top level view only has those button views as children, you could do
for (int i = 0 ; i < yourView.getChildCount(); i++) {
Button b = (Button) yourView.getChildAt(i);
b.setOnClickListener(xxxx);
}
If there are more views present you'd need to check if the selected one is one of your buttons.
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares withgetResources().getIdentifier().
– dave.c
Feb 1 '11 at 16:58
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
add a comment |
0
If your top level view only has those button views as children, you could do
for (int i = 0 ; i < yourView.getChildCount(); i++) {
Button b = (Button) yourView.getChildAt(i);
b.setOnClickListener(xxxx);
}
If there are more views present you'd need to check if the selected one is one of your buttons.
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares withgetResources().getIdentifier().
– dave.c
Feb 1 '11 at 16:58
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
add a comment |
0
0
0
If your top level view only has those button views as children, you could do
for (int i = 0 ; i < yourView.getChildCount(); i++) {
Button b = (Button) yourView.getChildAt(i);
b.setOnClickListener(xxxx);
}
If there are more views present you'd need to check if the selected one is one of your buttons.
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
If your top level view only has those button views as children, you could do
for (int i = 0 ; i < yourView.getChildCount(); i++) {
Button b = (Button) yourView.getChildAt(i);
b.setOnClickListener(xxxx);
}
If there are more views present you'd need to check if the selected one is one of your buttons.
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
answered Feb 1 '11 at 16:55
Heiko RuppHeiko Rupp
22.3k1170113
22.3k1170113
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares withgetResources().getIdentifier().
– dave.c
Feb 1 '11 at 16:58
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
add a comment |
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares withgetResources().getIdentifier().
– dave.c
Feb 1 '11 at 16:58
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares with
getResources().getIdentifier().– dave.c
Feb 1 '11 at 16:58
do you know how the performance compares with the other suggested methods? I'd assume that it was slightly slower than an array of ID's, but I'd be interested to know how it compares with
getResources().getIdentifier().– dave.c
Feb 1 '11 at 16:58
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
No sorry no idea. A view knows his children, so I don't think it is too bad.
– Heiko Rupp
Feb 1 '11 at 21:26
add a comment |
0
If for some reason you can't use the getIdentifier() function and/or you know the possible id's beforehand, you could use a switch.
int id = 0;
switch(name) {
case "x":
id = R.id.x;
break;
etc.etc.
}
String value = findViewById(id);
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
add a comment |
0
If for some reason you can't use the getIdentifier() function and/or you know the possible id's beforehand, you could use a switch.
int id = 0;
switch(name) {
case "x":
id = R.id.x;
break;
etc.etc.
}
String value = findViewById(id);
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
add a comment |
0
0
0
If for some reason you can't use the getIdentifier() function and/or you know the possible id's beforehand, you could use a switch.
int id = 0;
switch(name) {
case "x":
id = R.id.x;
break;
etc.etc.
}
String value = findViewById(id);
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
If for some reason you can't use the getIdentifier() function and/or you know the possible id's beforehand, you could use a switch.
int id = 0;
switch(name) {
case "x":
id = R.id.x;
break;
etc.etc.
}
String value = findViewById(id);
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
answered Apr 17 '18 at 23:08
B.CakirB.Cakir
118112
118112
add a comment |
add a comment |
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