What to import for @androidx.annotation.Nullable?

Question

Doing task from Advanced Android Development Course. I have DialView that extends android.view.View. Constructors have a @android.annotation.Nullable parameter that blinks red. Importing android.support.annotation.Nullable doesn't solve the problem.

minSdkVersion is set to 15.

Error: cannot find symbol class Nullable

public DialView(Context context, @androidx.annotation.Nullable @Nullable AttributeSet attrs) {
    super(context, attrs);
}

Module:app

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

please share your **module.gradle** code (dependency section) — Jeel Vankhede, Oct 05 '18 at 07:12

score 1 · Accepted Answer · edited Jun 03 '19 at 02:05

1

I guess it was posted quite a while ago but just sharing what I found during googling.

I tried migrating to AndroidX (Go to refactor menu and Migrate to AndroidX) and was able to find the library. Similar answers and more detailed explanation are found here: https://stackoverflow.com/a/53722247/5440297

edited Jun 03 '19 at 02:05

MBer

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answered Jun 03 '19 at 01:10

nmsohn

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I missed or there was no notification there is an answer. – Pochmurnik Aug 26 '19 at 15:41

What to import for @androidx.annotation.Nullable?

1 Answers1