Can't programmatically get resource from another module

Question

I have an android project with several gradle modules. Dependencies beetween modules look like this:
app <-- coremodule <-- featuremodule

There are a resources in coremodule (strings and colors).

When I use them in layout from featuremodule everything is OK, they are avaliable and work as expected. But when I try to get them programmaticully in Activity from featuremodule I get an exception: Unresolved reference: R

So android:text="@string/res_from_core_module" works and myTextView.setText(R.string.res_from_core_module) doesn't work.

Have anyone ideas why it happens and how to solve this?

share complete code and error details – Pavneet_Singh Apr 11 '18 at 17:35 — Pavneet_Singh, Apr 11 '18 at 17:35

score 2 · Accepted Answer · answered Jan 19 '19 at 17:10

The reason for such behavior was adding 'coremodule' dependency with compileOnly.

build.gradle for app module looked like:

dependencies {
    ...
    compileOnly project(path: ':coremodule')
    ...
}

if change compileOnly with implementation (or api) everything is OK

dependencies {
    ...
    implementation project(path: ':coremodule')
    ...
}

score 1 · Answer 2 · answered Apr 11 '18 at 17:59

1

I think the R points to the Resources of your app. Check the imports at the beginning of the file.

You should explicitly point the Resource folder in the method like this:

myTextView.setText(com.coremodule.R.string.res_from_core_module)

answered Apr 11 '18 at 17:59

BEAGLE ENTERTAIN

158
2
9

If I'm not mistaken R file is a common for project and modules. In any case it was the first thing which I tried - no changes. The error was the same : "Unresolved reference: R" – Mikhail Sidorov Apr 12 '18 at 08:10

score 1 · Answer 3 · answered Dec 21 '20 at 10:53

1

Add this to all modules to share resources, classes, functions

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])

    ...
}

answered Dec 21 '20 at 10:53

hungtran273

1,180
9
11

how does it work if I don't use dependencies from disk? – Mikhail Sidorov Dec 22 '20 at 18:14

score -1 · Answer 4 · answered Apr 11 '18 at 18:53

-1

Please use like this:

myTextView.setText(getString(R.string.res_from_core_module));

answered Apr 11 '18 at 18:53

Raman Sharma

159
1
5

setText(@StringRes) call setText(getString(@StringRes)) , so in fact there is no difference between calling this 2 methods and as a result i got the same error "Unresolved reference: R" – Mikhail Sidorov Apr 12 '18 at 08:15

score -1 · Answer 5 · answered Mar 10 '22 at 16:03

-1

Latest answer !!! It will make everything accessible to your app module.

dependencies {
    ...
    api project(': coremodule')
    ...
}

answered Mar 10 '22 at 16:03

Shahbaz Hashmi

2,631
2
26
49

Can't programmatically get resource from another module

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