Failed to import: android.support.v7.widget.RecyclerView in Android Studio

Question

I follow the instructions of my teachers and therefore write the exact same code as in his example. So I just created a new class to find out RecyclerView, but I can’t import. RecyclerViewWhen I hover over it, it just says: " Cannot resolve the RecyclerView character ." I use Android Studio 2.3.3.I missed something obvious?

import android.support.v7.widget.RecyclerView;

public class CustomAdapter extends RecyclerView.Adapter<ComposedAdapter.Holder> {
//stuff 
}

Gradle:

apply plugin: 'com.android.application'android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "sofialarsson.customrecyclerview"
    minSdkVersion 19
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
 }
}
dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
testCompile 'junit:junit:4.12'
}

Answer 1

You need to add dependencies to build.gradle

Use this update file gradle

apply plugin: 'com.android.application'android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
    applicationId "sofialarsson.customrecyclerview"
    minSdkVersion 19
    targetSdkVersion 25
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
 }
}
dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
    exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support.constraint:constraint-layout:1.0.2'

compile "com.android.support:appcompat-v7:25.0.0"
compile "com.android.support:recyclerview-v7:25.0.0"

testCompile 'junit:junit:4.12'
}

Answer 2

Add the dependency below to build.gradle;

compile 'com.android.support:design:xx.x.x'

Answer 3

compile 'com.android.support:recyclerview-v7:25.3.1' build.gradle, ,

dependencies {
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support:recyclerview-v7:25.3.1'
}

Answer 4

, .

compile 'com.android.support:design:25.3.1'
compile 'com.android.support:recyclerview-v7:25.3.1'

Make sure to always use the same versions wherever you use here. 25.3.1. Also update yours buildToolsVersion="25.0.0". Thank!!!

Answer 5

Add below dependency in build.gradle

implementation 'androidx.recyclerview: recyclerview: 1.1.0-beta02'

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