創建新的活動時，應用崩潰

Question

我從菜單開始活動：

if (id == R.id.action_debug_test) {
    Intent i = new Intent(this, RecycleActivity.class);
    startActivity(i);
    //return true;
}

這是使它崩潰的活動：

package zeman.diktafonmev;

import android.content.Context;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Toast;

import java.io.File;
import java.util.ArrayList;
import java.util.List;

public class RecycleActivity extends AppCompatActivity {

    private List<Movie> movieList = new ArrayList<>();
    private RecyclerView recyclerView;
    private MoviesAdapter mAdapter;

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

        /*
        Toolbar toolbar = (Toolbar) findViewById(R.id.tool_bar);
        setSupportActionBar(toolbar);
        */

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

        mAdapter = new MoviesAdapter(movieList);

        recyclerView.setHasFixedSize(true);
        RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
        recyclerView.setLayoutManager(mLayoutManager);
        recyclerView.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.VERTICAL));
        recyclerView.setItemAnimator(new DefaultItemAnimator());
        recyclerView.setAdapter(mAdapter);

        recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getApplicationContext(), recyclerView, new ClickListener() {
            @Override
            public void onClick(View view, int position) {
                Movie movie = movieList.get(position);
                Toast.makeText(getApplicationContext(), movie.getTitle() + " is selected!", Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onLongClick(View view, int position) {

            }
        }));

        prepareMovieData();
    }

    private void prepareMovieData() {

        String end = ".mp3";
        String end2 = ".3gp";
        File myMp3Dir = new File(Environment.getExternalStorageDirectory() + "/ZemanRecording/");
        ArrayList songs = new ArrayList();
        final File[] fileList = myMp3Dir.listFiles();
        if (fileList == null)
            return;
        for (File f : fileList) {
            if (!f.isDirectory()) //if file is browsing not directory
            {
                if (f.getName().toLowerCase().contains(end)) //if file with end is .mp3 is add to arraylist
                    songs.add(f.getName());
                if(f.getName().toLowerCase().contains(end2))
                    songs.add(f.getName());

                Movie movie = new Movie(f.getName(),  Boolean.toString(f.canRead()), "2015");
                movieList.add(movie);
            }
        }

        mAdapter.notifyDataSetChanged();
    }

    public interface ClickListener {

        void onClick(View view, int position);

        void onLongClick(View view, int position);
    }

    public static class RecyclerTouchListener implements RecyclerView.OnItemTouchListener {

        private GestureDetector gestureDetector;
        private RecycleActivity.ClickListener clickListener;

        public RecyclerTouchListener(Context context, final RecyclerView recyclerView, final RecycleActivity.ClickListener clickListener) {
            this.clickListener = clickListener;
            gestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
                @Override
                public boolean onSingleTapUp(MotionEvent e) {
                    return true;
                }

                @Override
                public void onLongPress(MotionEvent e) {
                    View child = recyclerView.findChildViewUnder(e.getX(), e.getY());
                    if (child != null && clickListener != null) {
                        clickListener.onLongClick(child, recyclerView.getChildPosition(child));
                    }
                }
            });
        }

        @Override
        public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {

            View child = rv.findChildViewUnder(e.getX(), e.getY());
            if (child != null && clickListener != null && gestureDetector.onTouchEvent(e)) {
                clickListener.onClick(child, rv.getChildPosition(child));
            }
            return false;
        }

        @Override
        public void onTouchEvent(RecyclerView rv, MotionEvent e) {
        }

        @Override
        public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

        }
    }

}

基本上我正在使用這個 。

我可以單獨運行它，但是我只復制了它，並重命名了其中的某些部分以使其正常工作，因為我已經有了一個activity_main ，所以我將那個項目中的那個重命名為activity_recycle.xml 。

我已將其添加到AndroidManifest.xml並且我的應用程序確實具有所需的權限。

ERROR
03-17 08:20:01.584 7290-7290/zeman.diktafonmev E/AndroidRuntime: FATAL EXCEPTION: main
Process: zeman.diktafonmev, PID: 7290
java.lang.RuntimeException: Unable to start activity ComponentInfo{zeman.diktafonmev/zeman.diktafonmev.RecycleActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f04001e
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)
    at android.app.ActivityThread.access$800(ActivityThread.java:144)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5221)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f04001e
    at android.content.res.Resources.getValue(Resources.java:1233)
    at android.content.res.Resources.loadXmlResourceParser(Resources.java:2598)
    at android.content.res.Resources.getLayout(Resources.java:1049)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:412)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
    at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:256)
    at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109)
    at zeman.diktafonmev.RecycleActivity.onCreate(RecycleActivity.java:27)
    at android.app.Activity.performCreate(Activity.java:5933)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) 
    at android.app.ActivityThread.access$800(ActivityThread.java:144) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:135) 
    at android.app.ActivityThread.main(ActivityThread.java:5221) 
    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:899) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 

content_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout

    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    tools:showIn="@layout/activity_recycle"
    tools:context=".RecycleActivity">

    <android.support.v7.widget.RecyclerView

        android:id="@+id/recycler_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scrollbars="vertical" />

</RelativeLayout>

這就是我的項目的樣子-（土地）可能會影響它嗎？ 我也嘗試過以橫向模式啟動活動，但仍然崩潰。

Answer 1

您是否有此布局文件(R.layout.content_main) ？

您在第27行（在onCreate()方法中）遇到此錯誤android.content.res.Resources$NotFoundException:

如果確實有該文件，則可能是在那邊設置xml的方式存在一些錯誤。 如果有，請共享該xml文件。

Answer 2

您是否將R導入了RecycleActivity中？ 在導入的任何地方都看不到zeman.diktafonmev.R。

您也可以嘗試清理和重建項目。

Answer 3

從您的XML中刪除以下行tools:showIn