找不到Symbol类ActionBarActivity（Android回收视图） [英] cannot find Symbol class ActionBarActivity (Android Recycled View)

问题描述

我在构建graddle时遇到了一些问题。.我不知道问题出在哪里，我读了很多有关此事的文章，但是我找不到解决方法。.
i已经：下载存储库，放入依赖项和最新SDK版本。

我尝试在 HomeActivity.xml 中制作 CardView 。我也有 MyViewHolder.java ， PageAdapter.java 和`MyObject.java，所以..我需要一些帮助
如果你想要另一个文件，我做了3 TabLayout。该代码在MainActivity.java中。

 信息：Gradle任务[clean，：app：assembleDebug] 
 C：\ ...... ..... \HomeActivity.java 
错误：（16，35）错误：找不到符号类ActionBarActivity 
错误：（26，5）错误：方法未覆盖或实现以下方法：一个超类型
错误：（28，9）错误：找不到符号变量super 
错误：（29，9）错误：找不到符号方法setContentView（int）
 C：\Users \cozakk\AndroidStudioProjects\MaximeBodivitVisionApp\app\src\main\java\com\maximebodivit\maximebodivitvisionapp\PagerAdapter.java 
错误：（21，24）错误：类型不兼容：HomeActivity无法转换为片段
错误：任务'：app：compileDebugJavaWithJavac'的执行失败。 
>编译失败；有关详细信息，请参见编译器错误输出。 
信息：26秒内无法建立
信息：6个错误
信息：0警告
信息：请参阅控制台
 的完整输出pre> 
 
 
在此文件中，我有 ActionBarActivity ， onCreate  ，红色的 setContentView  ... 
 
 
 
 HomeActivity.java 
  package com.maximebodivit.maximebodivitvisionapp; 
 
 import android.os.Bundle; 
 import android.support.v7.widget.RecyclerView; 
 import android.view.LayoutInflater; 
 import android.view.View; 
 import android.view.ViewGroup; 
 
 import java.util.ArrayList; 
 import java.util.List; 
 
 / ** 
 *由cozakk创建于2018年2月13日。 
 * / 
 
公共类HomeActivity扩展了ActionBarActivity {
 
 public View onCreateView（LayoutInflater inflater，ViewGroup container，Bundle savedInstanceState）{
 return inflater.inflate （R.layout.fragment_home，container，false）; 
} 
 
私人RecyclerView recyclerView； 
 
私人列表< MyObject>城市=新的ArrayList<>（）; 
 
 @Override 
 protected void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 setContentView（R.layout.fragment_home）; 
 
 //填满城市
 ajouterVilles（）; 
 
 recyclerView =（RecyclerView）recyclerView.findViewById（R.id.recyclerView）; 
 
 
 recyclerView.setAdapter（new MyAdapter（cities））; 
} 
 
 private void ajouterVilles（）{
 city.add（new MyObject（ France， http://www.telegraph.co.uk/travel/destination /article130148.ece/ALTERNATES/w620/parisguidetower.jpg））； 
 city.add（new MyObject（ Angleterre， http://www.traditours.com/images/Photos%20Angleterre/ForumLondonBridge.jpg））; 
 city.add（new MyObject（ Allemagne， http://tanned-allemagne.com/wp-content/uploads/2012/10/pano_rathaus_1280.jpg））;; 
 city.add（new MyObject（ Espagne， http://www.sejour-linguistique-lec.fr/wp-content/uploads/espagne-02.jpg））; 
 city.add（new MyObject（ Italie， http://retouralinnocence.com/wp-content/uploads/2013/05/Hotel-en-Italie-pour-les-Vacances2.jpg）） ; 
 city.add（new MyObject（ Russie， http://www.choisir-ma-destination.com/uploads/_large_russie-moscou2.jpg））;; 
} 
} 
  
 Android Manifeste.xml 
 <？xml version = 1.0 encoding = utf-8？> 
<清单xmlns：android = http://schemas.android.com/apk/res/android 
 package = com.maximebodivit.maximebodivitvisionapp> 
 
<应用程序
 android：allowBackup = true 
 android：icon = @ mipmap / ic_launcher 
 android：label = @ string / app_name 
 android：roundIcon = @ mipmap / ic_launcher_round 
 android：supportsRtl = true 
 android：theme = @ style / AppTheme> 
<活动
 android：name =。MainActivity 
 android：label = @ string / app_name 
 android：theme = @ style / AppTheme.NoActionBar> ; 
<意图过滤器> 
< action android：name = android.intent.action.MAIN /> 
< category android：name = android.intent.category.LAUNCHER /> 
< / intent-filter> 
< / activity> 
< activity android：name =。SplashScreenActivity>< / activity> 
< / application> 
 
< / manifest> 
  
 
 
解决方案
根据文档'ActionBarActivity'已弃用，并从支持库中删除，将您的Activity从而是使用 AppCompatActivity：
  import android.support.v7.app.AppCompatActivity; 
 
公共类YourActivity扩展了AppCompatActivity 
  
 app / build.gradle 
  android {
 compileSdkVersion 27 
 buildToolsVersion '27 .0.3'
 defaultConfig {
 applicationId 'your_app_id'
 minSdkVersion 16 
 targetSdkVersion 27 
版本代码1 
版本名称 1.0 
 
} 
} 
 
依赖项{
实现'com.android.support:appcompat-v7:27.1.0'
} 
  
 
I have some problem when i build graddle.. i don't understand where is the probleme, i read many things about that, but i can't find the solution..
i have already: download the Repository, put in the dependencies and the latest SDK version.

I try to make CardView in the HomeActivity.xml.  I have also MyViewHolder.java, PageAdapter.java and `MyObject.java so.. i need some help
If you want the other file, i have made 3 TabLayout . the code is in the MainActivity.java. 
Information:Gradle tasks [clean, :app:assembleDebug]
C:\...........\HomeActivity.java
Error:(16, 35) error: cannot find symbol class ActionBarActivity
Error:(26, 5) error: method does not override or implement a method from a supertype
Error:(28, 9) error: cannot find symbol variable super
Error:(29, 9) error: cannot find symbol method setContentView(int)
C:\Users\cozakk\AndroidStudioProjects\MaximeBodivitVisionApp\app\src\main\java\com\maximebodivit\maximebodivitvisionapp\PagerAdapter.java
Error:(21, 24) error: incompatible types: HomeActivity cannot be converted to Fragment
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.
Information:BUILD FAILED in 26s
Information:6 errors
Information:0 warnings
Information:See complete output in console
In this file i have ActionBarActivity, onCreate, setContentView in red...

HomeActivity.java
package com.maximebodivit.maximebodivitvisionapp;

import android.os.Bundle;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by cozakk on 13/02/2018.
 */

public class HomeActivity extends ActionBarActivity {

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.fragment_home, container, false);
    }

    private RecyclerView recyclerView;

    private List<MyObject> cities = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.fragment_home);

        //Fill city
        ajouterVilles();

        recyclerView = (RecyclerView) recyclerView.findViewById(R.id.recyclerView);


        recyclerView.setAdapter(new MyAdapter(cities));
    }

    private void ajouterVilles() {
        cities.add(new MyObject("France","http://www.telegraph.co.uk/travel/destination/article130148.ece/ALTERNATES/w620/parisguidetower.jpg"));
        cities.add(new MyObject("Angleterre","http://www.traditours.com/images/Photos%20Angleterre/ForumLondonBridge.jpg"));
        cities.add(new MyObject("Allemagne","http://tanned-allemagne.com/wp-content/uploads/2012/10/pano_rathaus_1280.jpg"));
        cities.add(new MyObject("Espagne","http://www.sejour-linguistique-lec.fr/wp-content/uploads/espagne-02.jpg"));
        cities.add(new MyObject("Italie","http://retouralinnocence.com/wp-content/uploads/2013/05/Hotel-en-Italie-pour-les-Vacances2.jpg"));
        cities.add(new MyObject("Russie","http://www.choisir-ma-destination.com/uploads/_large_russie-moscou2.jpg"));
    }
}
Android Manifeste.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.maximebodivit.maximebodivitvisionapp">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".SplashScreenActivity"></activity>
    </application>

</manifest>

解决方案
According to the documentation 'ActionBarActivity' has been deprecated and removed from support library, extend your Activity from 'AppCompatActivity' instead:
import android.support.v7.app.AppCompatActivity;

public class YourActivity extends AppCompatActivity
app/build.gradle
android {
    compileSdkVersion 27
    buildToolsVersion '27.0.3'
    defaultConfig {
        applicationId 'your_app_id'
        minSdkVersion 16
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"

    }
    }

dependencies {
    implementation 'com.android.support:appcompat-v7:27.1.0'
}


                        
这篇关于找不到Symbol类ActionBarActivity（Android回收视图）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！