'Android Studio - Why might requireViewById(R.id.recyclerview) not be working in API 22 (it is in 28)
In short, API 28 all is well; API 22 app crashes in MainActivity.onCreate with
java.lang.NoSuchMethodError: No virtual method requireViewById
on the following line:
RecyclerView recyclerView = requireViewById(R.id.recyclerview);
Now, the long explanation:
I am setting up an Android Studio app. I have one MVVM "set" including a RecyclerView (within an android.support.design.widget.CoordinatorLayout) in my activity_main.xml; the android.support.v7.widget.RecyclerView has a tools:listitem="@layout/parcel_item"; the parcel_item.xml is an android.support.v7.widget.CardView.
Everything seems fine under API 28. When I run to API 22 - either on my physical Samsung Galaxy Note tablet (Android 5.1.1 API 22), or on a virtual Nexus 7 (2012) API 22 - the app is crashing almost immediately. In MainActivity.onCreate:
RecyclerView recyclerView = requireViewById(R.id.recyclerview);
with:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.zazzem.thatsthat, PID: 5613
java.lang.NoSuchMethodError: No virtual method requireViewById(I)Landroid/view/View; in class Lcom/zazzem/thatsthat/MainActivity; or its super classes (declaration of 'com.zazzem.thatsthat.MainActivity' appears in /data/app/com.zazzem.thatsthat-1/split_lib_slice_7_apk.apk)
at com.zazzem.thatsthat.MainActivity.onCreate(MainActivity.java:26)
at android.app.Activity.performCreate(Activity.java:5990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
The problem, No virtual method requireViewById seems to imply a virtual method that wasn't overridden somewhere, but - as I mentioned before - this works fine under API 28.
I've found nothing online specific to "No virtual method requireViewById" and I've tried everything suggested by a variety of posts relating to "java.lang.NoSuchMethodError" - including File | Invalidate Caches/Restart and checking my Gradle scripts (as well as I'm able; I'm very new to Android Studio & java). All to no avail.
MainActivity.java
//MainActivity.java
package com.zazzem.thatsthat;
import android.arch.lifecycle.Observer;
import android.arch.lifecycle.ViewModelProviders;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.Toast;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private ParcelViewModel parcelViewModel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.d("##","before"); //this I get <<====================
RecyclerView recyclerView = requireViewById(R.id.recyclerview);
Log.d("##","after"); //this I don't <<====================
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setHasFixedSize(true);
final ParcelAdapter adapter = new ParcelAdapter();
recyclerView.setAdapter(adapter);
parcelViewModel = ViewModelProviders.of(this).get(ParcelViewModel.class);
parcelViewModel.getAllParcels().observe(this, new Observer<List<Parcel>>() {
@Override
public void onChanged(@Nullable List<Parcel> parcels) {
adapter.setParcels(parcels);
}
});
}
public void menuButtonClick(View view) {
Toast.makeText(this, "menuButtonClick", Toast.LENGTH_SHORT).show();
}
} //MainActivity
Help | Check for Updates... all current
Versions and such:
Android Studio 3.3.2
SDK Platforms:
-Android 9.0 (Pie) 28 (Revision 6) Installed -Android 8.1 (Oreo) 27 (Revision 3) Partially installed -Android 5.1 (Lollipop) 22 (Revision 2) Partially installed
SDK Tools:
-Android SDK Build-Tools 29-rc2 -Android Emulator b28.0.25 -Android SDK Platform-Tools v28.0.2 -Android SDK Tools v26.1.1 -Support Repository (all 4 installed: -,-,47.0.0,58)
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/facadeLight"
tools:listitem="@layout/parcel_item" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/button_menu"
...
android:tint="@color/facadeLight" />
</android.support.design.widget.CoordinatorLayout>
parcel_item.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="24dp"
android:layout_marginTop="12dp"
android:layout_marginEnd="24dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/parcel_theme">
<TextView
android:id="@+id/textview_Descr"
...
android:textSize="60sp" />
<TextView
android:id="@+id/textview_ParcelID"
...
android:textSize="12sp" />
<TextView
android:id="@+id/textview_NrPuzzles"
...
android:textSize="20sp" />
<TextView
android:id="@+id/textview_AdCopy"
...
android:text="Ad Copy" />
</RelativeLayout>
</android.support.v7.widget.CardView>
finally, the Gradle Scripts:
build.gradle (Project: ThatsThat)
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.3.2'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
and build.gradle (Module: app)
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.zazzem.thatsthat"
minSdkVersion 19
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support:design:28.0.0'
implementation 'com.android.support:cardview-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'
//Lifecycle components
implementation 'android.arch.lifecycle:extensions:1.1.1'
annotationProcessor 'android.arch.lifecycle:compiler:1.1.1'
//Room components
implementation 'android.arch.persistence.room:runtime:1.1.1'
annotationProcessor 'android.arch.persistence.room:compiler:1.1.1'
}
Solution 1:[1]
RecyclerView recyclerView = findViewById(R.id.recyclerview);
You have to update above line.
Solution 2:[2]
It's simple, requireViewById was added in API level 28, so the error message:
java.lang.NoSuchMethodError: No virtual method requireViewById
should be read literally -- on runtimes running API level less than 28, this method simply does not exist. Normally, this type of thing would be a compile error, however in this case the error is not raised at compile time, because you are compiling against a library that does have that method. However, the method is not present in runtime versions of the Android API < 28.
From: https://developer.android.com/reference/android/view/View#requireViewById(int):
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Mehul Kabaria |
| Solution 2 |