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“The plus symbol indicates that this should be created as a new ID” - as opposed to what?
How to make an Android Spinner with initial text “Select One”?Fling gesture detection on grid layoutReference one string from another string in strings.xml?Can the Android Layout folder contain subfolders?Difference between “@id/” and “@+id/” in AndroidSet selected item of spinner programmaticallyMipmap drawables for iconsMipmaps vs. drawable foldersError retrieving parent for item: No resource found that matches the given name after upgrading to AppCompat v23New resource id declaration without the plus sign
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty
margin-bottom:0;
When Android describes android:id as:
Resource ID. A unique resource ID for this drawable. To create a new resource ID for this item, use the form: "@+id/name". The plus symbol indicates that this should be created as a new ID.
When would id not be created as a new id? Shouldn't that be implied?
android xml asked Mar 28 at 21:05
ZorganZorgan
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When Android describes android:id as:
Resource ID. A unique resource ID for this drawable. To create a new resource ID for this item, use the form: "@+id/name". The plus symbol indicates that this should be created as a new ID.
When would id not be created as a new id? Shouldn't that be implied?
android xml asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
add a comment
|
When Android describes android:id as:
Resource ID. A unique resource ID for this drawable. To create a new resource ID for this item, use the form: "@+id/name". The plus symbol indicates that this should be created as a new ID.
When would id not be created as a new id? Shouldn't that be implied?
android xml asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
When Android describes android:id as:
Resource ID. A unique resource ID for this drawable. To create a new resource ID for this item, use the form: "@+id/name". The plus symbol indicates that this should be created as a new ID.
When would id not be created as a new id? Shouldn't that be implied?
android xml android xml asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
asked Mar 28 at 21:05
ZorganZorgan
1,2062 gold badges23 silver badges64 bronze badges
1,2062 gold badges23 silver badges64 bronze badges
add a comment
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add a comment
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1 Answer
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Views in a layout file can reference other views. This happens frequently when using RelativeLayout or ConstraintLayout which needs explicit relationships to be formed between its children.
e.g.
<Button android:id="@+id/progress" />
<Button
android:id="@+id/next"
app:layout_constraintTop_toBottomOf="@id/progress" />
When you specify a reference to another view, you omit the + because we're not creating the ID, but referencing an existing one.
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
But the reference is implied because it's not in theidattribute. If it is in the id attribute creating a new id should be implied?
– Zorgan
Mar 28 at 21:39
Ah, that's a good point. Technically you can use the+syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use theidproperty itself 🤷♂️
– Damien Diehl
Mar 28 at 22:01
add a comment
|
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1 Answer
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Views in a layout file can reference other views. This happens frequently when using RelativeLayout or ConstraintLayout which needs explicit relationships to be formed between its children.
e.g.
<Button android:id="@+id/progress" />
<Button
android:id="@+id/next"
app:layout_constraintTop_toBottomOf="@id/progress" />
When you specify a reference to another view, you omit the + because we're not creating the ID, but referencing an existing one.
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
But the reference is implied because it's not in theidattribute. If it is in the id attribute creating a new id should be implied?
– Zorgan
Mar 28 at 21:39
Ah, that's a good point. Technically you can use the+syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use theidproperty itself 🤷♂️
– Damien Diehl
Mar 28 at 22:01
add a comment
|
Views in a layout file can reference other views. This happens frequently when using RelativeLayout or ConstraintLayout which needs explicit relationships to be formed between its children.
e.g.
<Button android:id="@+id/progress" />
<Button
android:id="@+id/next"
app:layout_constraintTop_toBottomOf="@id/progress" />
When you specify a reference to another view, you omit the + because we're not creating the ID, but referencing an existing one.
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
But the reference is implied because it's not in theidattribute. If it is in the id attribute creating a new id should be implied?
– Zorgan
Mar 28 at 21:39
Ah, that's a good point. Technically you can use the+syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use theidproperty itself 🤷♂️
– Damien Diehl
Mar 28 at 22:01
add a comment
|
Views in a layout file can reference other views. This happens frequently when using RelativeLayout or ConstraintLayout which needs explicit relationships to be formed between its children.
e.g.
<Button android:id="@+id/progress" />
<Button
android:id="@+id/next"
app:layout_constraintTop_toBottomOf="@id/progress" />
When you specify a reference to another view, you omit the + because we're not creating the ID, but referencing an existing one.
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
Views in a layout file can reference other views. This happens frequently when using RelativeLayout or ConstraintLayout which needs explicit relationships to be formed between its children.
e.g.
<Button android:id="@+id/progress" />
<Button
android:id="@+id/next"
app:layout_constraintTop_toBottomOf="@id/progress" />
When you specify a reference to another view, you omit the + because we're not creating the ID, but referencing an existing one.
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
answered Mar 28 at 21:35
Damien DiehlDamien Diehl
3214 silver badges12 bronze badges
3214 silver badges12 bronze badges
But the reference is implied because it's not in theidattribute. If it is in the id attribute creating a new id should be implied?
– Zorgan
Mar 28 at 21:39
Ah, that's a good point. Technically you can use the+syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use theidproperty itself 🤷♂️
– Damien Diehl
Mar 28 at 22:01
add a comment
|
But the reference is implied because it's not in theidattribute. If it is in the id attribute creating a new id should be implied?
– Zorgan
Mar 28 at 21:39
Ah, that's a good point. Technically you can use the+syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use theidproperty itself 🤷♂️
– Damien Diehl
Mar 28 at 22:01
But the reference is implied because it's not in the
id attribute. If it is in the id attribute creating a new id should be implied?– Zorgan
Mar 28 at 21:39
But the reference is implied because it's not in the
id attribute. If it is in the id attribute creating a new id should be implied?– Zorgan
Mar 28 at 21:39
Ah, that's a good point. Technically you can use the
+ syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use the id property itself 🤷♂️– Damien Diehl
Mar 28 at 22:01
Ah, that's a good point. Technically you can use the
+ syntax to create IDs outside of the ID field, so maybe the SDK authors felt it was good for flexibility and consistency. Though I can't think of any time you would need to create an ID but couldn't use the id property itself 🤷♂️– Damien Diehl
Mar 28 at 22:01
add a comment
|
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