How can use ?attr/colorAccent in databinding expressions?
0
I have a XML field that I want to change based on an 'ObservableBoolean' like this:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
>
<data>
<variable
name="isColored"
type="androidx.databinding.ObservableBoolean"
/>
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<com.consoleco.console.customView.PerTextView
android:layout_width="0dp"
android:layout_height="48dp"
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
android:gravity="center"
android:text="@string/save"
android:textColor="@color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
In this line of code above:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
we can't use two '?' mark (IDE give error: expected, got ?'
How can I resolve this problem?
android android-databinding asked Nov 11 at 10:29
Doctor Henry
567514
add a comment |
0
I have a XML field that I want to change based on an 'ObservableBoolean' like this:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
>
<data>
<variable
name="isColored"
type="androidx.databinding.ObservableBoolean"
/>
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<com.consoleco.console.customView.PerTextView
android:layout_width="0dp"
android:layout_height="48dp"
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
android:gravity="center"
android:text="@string/save"
android:textColor="@color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
In this line of code above:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
we can't use two '?' mark (IDE give error: expected, got ?'
How can I resolve this problem?
android android-databinding asked Nov 11 at 10:29
Doctor Henry
567514
add a comment |
0
0
0
I have a XML field that I want to change based on an 'ObservableBoolean' like this:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
>
<data>
<variable
name="isColored"
type="androidx.databinding.ObservableBoolean"
/>
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<com.consoleco.console.customView.PerTextView
android:layout_width="0dp"
android:layout_height="48dp"
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
android:gravity="center"
android:text="@string/save"
android:textColor="@color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
In this line of code above:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
we can't use two '?' mark (IDE give error: expected, got ?'
How can I resolve this problem?
android android-databinding asked Nov 11 at 10:29
Doctor Henry
567514
I have a XML field that I want to change based on an 'ObservableBoolean' like this:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
>
<data>
<variable
name="isColored"
type="androidx.databinding.ObservableBoolean"
/>
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<com.consoleco.console.customView.PerTextView
android:layout_width="0dp"
android:layout_height="48dp"
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
android:gravity="center"
android:text="@string/save"
android:textColor="@color/white"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
In this line of code above:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
we can't use two '?' mark (IDE give error: expected, got ?'
How can I resolve this problem?
android android-databinding android android-databinding asked Nov 11 at 10:29
Doctor Henry
567514
asked Nov 11 at 10:29
Doctor Henry
567514
asked Nov 11 at 10:29
Doctor Henry
567514
asked Nov 11 at 10:29
Doctor Henry
567514
asked Nov 11 at 10:29
Doctor Henry
567514
567514
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
1
You can use a BindingAdapter for this (add this in a class):
@BindingAdapter("isColored")
public static void isColored(View view, boolean isColored){
TypedValue typedValueColor = new TypedValue();
view.getContext().getTheme().resolveAttribute(R.attr.colorAccent, typedValueColor, true);
if(isColored){
view.setBackground(typedValueColor.data);
} else {
view.setBackground(view.getContext().getResources().getColor(R.color.grayBackground));
}
}
And in your xml layout replace this:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
With this:
app:isColored="@{isColored}"
answered Nov 11 at 16:20
Cezar Mihai
113
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
add a comment |
0
Yes that is true. you can not use ?attr in your expression.
For now only work you can do is use @color/colorAccent instead of ?attr/colorAccent
answered Nov 11 at 10:35
Radesh
3,11611330
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
1
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
You can use a BindingAdapter for this (add this in a class):
@BindingAdapter("isColored")
public static void isColored(View view, boolean isColored){
TypedValue typedValueColor = new TypedValue();
view.getContext().getTheme().resolveAttribute(R.attr.colorAccent, typedValueColor, true);
if(isColored){
view.setBackground(typedValueColor.data);
} else {
view.setBackground(view.getContext().getResources().getColor(R.color.grayBackground));
}
}
And in your xml layout replace this:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
With this:
app:isColored="@{isColored}"
answered Nov 11 at 16:20
Cezar Mihai
113
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
add a comment |
1
You can use a BindingAdapter for this (add this in a class):
@BindingAdapter("isColored")
public static void isColored(View view, boolean isColored){
TypedValue typedValueColor = new TypedValue();
view.getContext().getTheme().resolveAttribute(R.attr.colorAccent, typedValueColor, true);
if(isColored){
view.setBackground(typedValueColor.data);
} else {
view.setBackground(view.getContext().getResources().getColor(R.color.grayBackground));
}
}
And in your xml layout replace this:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
With this:
app:isColored="@{isColored}"
answered Nov 11 at 16:20
Cezar Mihai
113
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
add a comment |
1
1
1
You can use a BindingAdapter for this (add this in a class):
@BindingAdapter("isColored")
public static void isColored(View view, boolean isColored){
TypedValue typedValueColor = new TypedValue();
view.getContext().getTheme().resolveAttribute(R.attr.colorAccent, typedValueColor, true);
if(isColored){
view.setBackground(typedValueColor.data);
} else {
view.setBackground(view.getContext().getResources().getColor(R.color.grayBackground));
}
}
And in your xml layout replace this:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
With this:
app:isColored="@{isColored}"
answered Nov 11 at 16:20
Cezar Mihai
113
You can use a BindingAdapter for this (add this in a class):
@BindingAdapter("isColored")
public static void isColored(View view, boolean isColored){
TypedValue typedValueColor = new TypedValue();
view.getContext().getTheme().resolveAttribute(R.attr.colorAccent, typedValueColor, true);
if(isColored){
view.setBackground(typedValueColor.data);
} else {
view.setBackground(view.getContext().getResources().getColor(R.color.grayBackground));
}
}
And in your xml layout replace this:
android:background="@{isColored ? ?attr/colorAccent : @color/grayBackground"
With this:
app:isColored="@{isColored}"
answered Nov 11 at 16:20
Cezar Mihai
113
answered Nov 11 at 16:20
Cezar Mihai
113
answered Nov 11 at 16:20
Cezar Mihai
113
answered Nov 11 at 16:20
Cezar Mihai
113
113
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
add a comment |
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
Thanks a lot for good details. Your solution will work well. But I prefer simpler solutions than @BindingAdapter.
– Doctor Henry
Nov 12 at 6:40
add a comment |
0
Yes that is true. you can not use ?attr in your expression.
For now only work you can do is use @color/colorAccent instead of ?attr/colorAccent
answered Nov 11 at 10:35
Radesh
3,11611330
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
1
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
add a comment |
0
Yes that is true. you can not use ?attr in your expression.
For now only work you can do is use @color/colorAccent instead of ?attr/colorAccent
answered Nov 11 at 10:35
Radesh
3,11611330
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
1
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
add a comment |
0
0
0
Yes that is true. you can not use ?attr in your expression.
For now only work you can do is use @color/colorAccent instead of ?attr/colorAccent
answered Nov 11 at 10:35
Radesh
3,11611330
Yes that is true. you can not use ?attr in your expression.
For now only work you can do is use @color/colorAccent instead of ?attr/colorAccent
answered Nov 11 at 10:35
Radesh
3,11611330
edited Nov 11 at 15:04
answered Nov 11 at 10:35
Radesh
3,11611330
answered Nov 11 at 10:35
Radesh
3,11611330
answered Nov 11 at 10:35
Radesh
3,11611330
3,11611330
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
1
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
add a comment |
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
1
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
But I have to use ?attr/colorAccent because of several styles made in app
– Doctor Henry
Nov 11 at 10:39
1
1
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
@DoctorHenry oh crap . yes that must be solved in the future but for now nothing you can do . i mean i can not found to solve and forget databinding
– Radesh
Nov 11 at 10:52
add a comment |
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