Question

我有一个严重的问题。在我运行测试时使用espresso进行测试后，出现此复杂错误

java.lang.NoSuchMethodError：没有静态方法   setFactory2（Landroid / view / LayoutInflater; Landroid / view / LayoutInflater $ Factory2;）V   在类Landroid / support / v4 / view / LayoutInflaterCompat中;或其超级   类（“ android.support.v4.view.LayoutInflaterCompat”的声明   出现在   /data/app/com.example.master.bakingapp.test-ZVHwTuzx1ipxW0iPyBZKBw==/base.apk）   在   android.support.v7.app.AppCompatDelegateImpl.installViewFactory（AppCompatDelegateImpl.java:1299）   在   android.support.v7.app.AppCompatActivity.onCreate（AppCompatActivity.java:72）   在   com.example.master.bakingapp.MainActivity.onCreate（MainActivity.java:61）   在android.app.Activity.performCreate（Activity.java:7136）处   android.app.Activity.performCreate（Activity.java:7127）在   android.app.Instrumentation.callActivityOnCreate（Instrumentation.java:1271）   在   android.support.test.runner.MonitoringInstrumentation.callActivityOnCreate（MonitoringInstrumentation.java:667）   在   android.app.ActivityThread.performLaunchActivity（ActivityThread.java:2893）   在   android.app.ActivityThread.handleLaunchActivity（ActivityThread.java:3048）   在   android.app.servertransaction.LaunchActivityItem.execute（LaunchActivityItem.java:78）   在   android.app.servertransaction.TransactionExecutor.executeCallbacks（TransactionExecutor.java:108）   在   android.app.servertransaction.TransactionExecutor.execute（TransactionExecutor.java:68）   在   android.app.ActivityThread $ H.handleMessage（ActivityThread.java:1808）   在android.os.Handler.dispatchMessage（Handler.java:106）   android.os.Looper.loop（Looper.java:193）在   android.app.ActivityThread.main（ActivityThread.java:6669）在   java.lang.reflect.Method.invoke（本机方法）位于   com.android.internal.os.RuntimeInit $ MethodAndArgsCaller.run（RuntimeInit.java:493）   在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:858）

测试运行失败：由于“过程”，仪表运行失败   崩溃了。”

它指向MainActivity上的onCreate

在
android.support.v7.app.AppCompatActivity.onCreate（AppCompatActivity.java:72）在 com.example.master.bakingapp.MainActivity.onCreate（MainActivity.java:61）

我试图调试测试。它卡在了onCreate

这是我的整个测试代码

package com.example.master.bakingapp;

import android.support.test.espresso.Espresso;
import android.support.test.espresso.IdlingResource;
import android.support.test.espresso.contrib.RecyclerViewActions;
import android.support.test.espresso.matcher.ViewMatchers;
import android.support.test.rule.ActivityTestRule;
import android.support.test.runner.AndroidJUnit4;

import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

import static android.support.test.espresso.Espresso.onData;
import static android.support.test.espresso.Espresso.onView;
import static android.support.test.espresso.action.ViewActions.click;
import static android.support.test.espresso.assertion.ViewAssertions.matches;
import static android.support.test.espresso.matcher.ViewMatchers.withId;
import static android.support.test.espresso.matcher.ViewMatchers.withText;
import static org.hamcrest.Matchers.anything;

@RunWith(AndroidJUnit4.class)
public class ClickUiTest {
    @Rule
    public ActivityTestRule<MainActivity> mActivityTestRule =
            new ActivityTestRule<>(MainActivity.class);
    private static final String RECIPE_ITEM_BROWNIE = "Brownies";
    private IdlingResource mIdlingResource;

    // Registers any resource that needs to be synchronized with Espresso before the test is run.
    @Before
    public void registerIdlingResource() {
        mIdlingResource = mActivityTestRule.getActivity().getIdlingResource();
        // To prove that the test fails, omit this call:
        Espresso.registerIdlingResources(mIdlingResource);
    }

    @Test
    public void checkSelectedItem_InRecycleView() {

        onView(ViewMatchers.withId(R.id.recycle_recipe)).perform(RecyclerViewActions.scrollToPosition(1));
        onView(withId(R.id.Ingredient_TextView)).check(matches(withText(RECIPE_ITEM_BROWNIE)));
    }

    @After
    public void unregisterIdlingResource() {
        if (mIdlingResource != null) {
            Espresso.unregisterIdlingResources(mIdlingResource);
        }

    }
}

和gradle模块

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    buildToolsVersion '28'
    defaultConfig {
        applicationId "com.example.master.bakingapp"
        minSdkVersion 25
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    sourceSets { main { res.srcDirs = ['src/main/res', 'src/androidTest'] } }
}
ext {
    lifecycle_version = "1.1.1"
    butterLibVersion = '8.8.1'
}
dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'

    // ViewModel and LiveData
    implementation "android.arch.lifecycle:extensions:${lifecycle_version}"
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.google.android.exoplayer:exoplayer:r2.2.0'
    implementation 'com.android.support.test.espresso:espresso-idling-resource:3.0.1'
    implementation "com.jakewharton:butterknife:${butterLibVersion}"
    annotationProcessor "com.jakewharton:butterknife-compiler:${butterLibVersion}"
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-intents:3.0.1'
    androidTestImplementation('com.android.support.test.espresso:espresso-contrib:2.2')
    androidTestImplementation "com.android.support.test.espresso.idling:idling-concurrent:3.0.1"
    implementation 'com.android.support:recyclerview-v7:28.0.0-alpha3'

    implementation 'com.android.support.test.espresso:espresso-idling-resource:3.0.1'


}

MainActivity

public class MainActivity extends AppCompatActivity implements RecipeCardFragment.OnRecycleClick
{
    private Recipes[] mRecipes;
    MyViewModel mViewModel;
    String json;
    public static final String mURL = "https://d17h27t6h515a5.cloudfront.net/topher/2017/May/59121517_baking/baking.json";
    public static final String Bundle_Object = "BUNDLE_OBJ";
    ProgressBar progressBar;
    FragmentManager fragmentManager;
    RecipeCardFragment cardFragment;
    boolean mTabletbool;
    @Nullable
    private SimpleIdlingResource mIdlingResource;

    /**
     * Only called from test, creates and returns a new {@link SimpleIdlingResource}.
     */
    @VisibleForTesting
    @NonNull
    public IdlingResource getIdlingResource() {
        if (mIdlingResource == null) {
            mIdlingResource = new SimpleIdlingResource();
        }
        return mIdlingResource;
    }
    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getIdlingResource();


    }

    @Override
    protected void onPostResume() {
        super.onPostResume();
    }

    @Override
    public void onclick(int pos) {
        Intent intent = new Intent(MainActivity.this, StepsActivity.class);
        try {
            Recipes recipes;
            recipes = Networkutils.ParseJsonIndex(json, pos);
            //updateWidget(recipes);
            Bundle bundle = new Bundle();
            bundle.putParcelable(Bundle_Object, recipes);
            intent.putExtras(bundle);
            fragmentManager=null;
            cardFragment=null;
            startActivity(intent);

        } catch (JSONException e) {
            e.printStackTrace();
        }



    }

    @Override
    public void jsonPass(String json) {
        this.json=json;
    }

    private void updateWidget(Recipes recipes) {
        ArrayList<String> ingredients = new ArrayList<>();
        for(Ingredients ingre:recipes.getIngredients()){
            String q=ingre.getQuantity()+"";
            ingredients.add(ingre.getIngredient()+"\n"+
                    "Quantity: "+q+"\n"+
                    "Measure: "+ingre.getMeasure()+"\n");
        }
        UpdateBakingService.startBakingService(MainActivity.this,ingredients);
    }

MainActivity.xml

<?xml version="1.0" encoding="utf-8"?>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:name="com.example.master.bakingapp.Fragments.RecipeCardFragment"
    xmlns:tools="http://schemas.android.com/tools"
    tools:context=".MainActivity"/>

和MainActivity托管的我的片段

public class RecipeCardFragment extends android.app.Fragment {

    public interface OnRecycleClick {
        void onclick(int pos);
        void jsonPass(String json);
    }
    private OnRecycleClick mOnRecycleClick;
    Recipes[] mRecipes;
    boolean mTablet;

    //MainActivity

    MyViewModel mViewModel;
    String json;
    public static final String mURL = "https://d17h27t6h515a5.cloudfront.net/topher/2017/May/59121517_baking/baking.json";
    ProgressBar progressBar;
    ////


    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        try {
            mOnRecycleClick=(OnRecycleClick) context;
        }catch (ClassCastException e){
            //TODO therows new Execption
        }
    }


    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @SuppressLint("StaticFieldLeak")
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable  ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=inflater.inflate(R.layout.fragment_recipe_recycle,container,false);
       final RecyclerView recyclerView=view.findViewById(R.id.recycle_recipe);
        //final Context context=container.getContext();
        if(savedInstanceState!=null){
            mRecipes= (Recipes[]) savedInstanceState.getParcelableArray("Recipes");
        }

         final SimpleIdlingResource idlingResource = new SimpleIdlingResource();

        if (idlingResource != null) {
            idlingResource.setIdleState(false);
        }
       URL url=null;
        try {
            url=new URL(mURL);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }

        new AsyncTask<URL, Void, String>() {
            @Override
            protected String doInBackground(URL... urls) {
                String jsons="";
                try {

                    jsons= Networkutils.HttpRequest(urls[0]);
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return jsons;
            }

            @Override
            protected void onPostExecute(String json) {
                super.onPostExecute(json);
                try {
                    mRecipes = Networkutils.parseRecipeCard(json);
                } catch (JSONException e) {
                    e.printStackTrace();
                }


                RecipeCardAdapter recipeCardAdapter= new RecipeCardAdapter(mRecipes,mOnRecycleClick);
                mOnRecycleClick.jsonPass(json);
                if(mTablet){
                    GridLayoutManager gridLayoutManager = new
                            GridLayoutManager(getActivity(), 3);
                    recyclerView.setLayoutManager(gridLayoutManager);
                    recyclerView.setHasFixedSize(true);
                    recyclerView.setAdapter(recipeCardAdapter);
                }
                else {
                    LinearLayoutManager linearLayoutManager=new LinearLayoutManager(getContext());
                    linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
                    recyclerView.setLayoutManager(linearLayoutManager);
                    recyclerView.setHasFixedSize(true);
                    recyclerView.setAdapter(recipeCardAdapter);
                }
                if (idlingResource != null) {
                    idlingResource.setIdleState(true);
                }
            }
        }.execute(url);
        return view;
    }

    @Override
    public void onSaveInstanceState(@NonNull Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putParcelableArray("Recipes",mRecipes);
    }
}

注意：当我更改MainActivity以扩展Activity而不是AppCompatActivity时，它可以工作，但是支持版本太多

3天内我没有解决此问题。我真的需要帮助

Answer 1

好：“ setFactory2（）”是 NOT 静态；它应该是LayoutInflator类实例的成员。例如：

https://www.programcreek.com/java-api-examples/?class=android.view.LayoutInflater&method=setFactory2

static void setFactory(LayoutInflater inflater, LayoutInflaterFactory factory) {
    Factory2 factory2 = factory != null ? new FactoryWrapperHC(factory) : null;
    inflater.setFactory2(factory2);
    Factory f = inflater.getFactory();
    if (f instanceof Factory2) {
        forceSetFactory2(inflater, (Factory2) f);
    } else {
        forceSetFactory2(inflater, factory2);
    }
}

建议：

问：您有（XML）布局吗？（他们）配置正确吗？

问：您的Android应用是否可以独立运行（独立于espresso）？

NoSuchMethodError android

1 个答案: