Cannot Resolve Symbol V7: Import Android. Support. V7. Widget. Recyclerview
I'm Trying to Import This: Import Android. Support. V7. Widget. Recyclerview; but I Got That: "Cannot Resolve Symbole V7". Indeed, When I'm Typing Android...
I'm trying to import this :
import android.support.v7.widget.RecyclerView;
But I got that : "Cannot resolve symbole v7".
Indeed, when I'm typing android.support. I can choose v4 but not v7
This is my build.gradle :
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.example.bibstandardandroidstudio"
minSdkVersion 23
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
buildToolsVersion '28.0.3'
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'androidx.appcompat:appcompat:1.1.0-alpha04'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0-alpha03'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0-alpha03'
implementation 'com.google.android.material:material:1.0.0'
implementation 'org.mindrot:jbcrypt:0.4'
implementation 'com.android.volley:volley:1.1.1'
implementation 'com.google.code.gson:gson:2.8.5'
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:recyclerview-v7:28.0.0'
}
I'm new to Android and I'm trying to follow this tutorial : Create a List with RecyclerView
I saw that implementation 'com.android.support:appcompat-v7:28.0.0' should unlock my situation but it don't seem to work
2 Answers
Add the following dependency to use recylerview:
implementation 'com.android.support:recyclerview-v7:28.0.0'
or for Android X:
implementation 'androidx.recyclerview:recyclerview:1.0.0'
as specified in point 2 under "Add the support library" creating recylerview. You can use the recyclerview under androidx like so:
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
The support library has got a new version and is no longer used. I also recommend to use AndroidX.
Click Refactor option in the android studio ribbon and choose Migrate to AndroidX. If you are new there then first create a copy of the project and then try AndroidX. Well, there is not much difference.
Then use the AndroidX recyclerview:
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.
