Databinding BR not showing all variable name

Question

I have implemented DataBinding with MVVM pattern, here is my ViewModel class.

public class MainViewModel extends BaseObservable {
    private String data, data1;

    @Bindable
    public String getData1() {
        return data1;
    }

    public void setData1(String data1) {
        this.data1 = data1;
    }

    @Bindable
    public String getData() {
        return data;
    }

    public void setData(String data) {
        this.data = data;
        notifyPropertyChanged(BR.data);
    }
}

now the problem is i can see BR.data there but not able to get BR.data1, how to use notifyPropertyChanged() for data1 variable.

I have tried to clean the project, also tried with rebuild it but didn't help me.

Here is my build.gradle file

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    dataBinding {
        enabled = true
    }

    defaultConfig {
        ...
        ...
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'

}

can you post your `gradle` file ? and once try to `Invalidate Caches and Restart`. — Harshad Pansuriya, Nov 29 '16 at 06:46
visit this : http://stackoverflow.com/questions/30776466/cannot-find-symbol-br-in-android-data-binding — Harshad Pansuriya, Nov 29 '16 at 06:55
But that's about BR class, i don't have any error with BR class, it is just not showing all variable. Still let me try with `Invalidate Caches and Restart` — Ravi, Nov 29 '16 at 06:58
did you try using `BR.data1` to see if it compiles. (might be a studio bug) — yigit, Nov 29 '16 at 07:52
Could you add an answer for this? The `BR` class makes a lot of trouble for me too. More than other resources created by `apt`. — tynn, Nov 29 '16 at 15:53

score 8 · Answer 1 · answered Sep 21 '19 at 19:56

Since AndroidX is here

So, all you do need to change your import from

import your_package_name.BR

with below code

import androidx.databinding.library.baseAdapters.BR

Also, check your lifecycle library new version

implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"

score 4 · Answer 2 · edited May 23 '17 at 11:46

4

I have found few ways to solve this.

1) Try with Invalidate caches and restart in android studio.
2) As yigit have mentioned, it is android studio bug, you can directly use variable instead of waiting for variable name to come as suggestion.

edited May 23 '17 at 11:46

Community

1
1

answered Dec 06 '16 at 04:45

Ravi

34,851
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score 4 · Answer 3 · edited Sep 20 '19 at 16:02

4

I can confirm what @jee states works. However if using androidx, the import statement will change to:

import androidx.databinding.library.baseAdapters.BR

Invalidate is not 100% needed. I just cleaned and rebuilt for my references to work again.

I am sure this is a Studio bug as @yigit mentioned but there are no bug reports anywhere confirming this.

edited Sep 20 '19 at 16:02

Das_Geek

2,775
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answered Sep 20 '19 at 12:39

Pieter van der Vyver

56
5

score 2 · Answer 4 · answered Sep 11 '19 at 07:05

2

I have tried following and it is working now:

1. Change import of BR to import com.android.databinding.library.baseAdapters.BR;

2.file->invalidate cahces/restart

answered Sep 11 '19 at 07:05

jee

524
4
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Databinding BR not showing all variable name

4 Answers4