java Android应用程序无法运行，持续崩溃

Question

我正在创建一个可以查看多个列表的应用程序，希望能够搜索列表。我是一名java初学者，我确信我的代码中有一些错误，但我希望能够对其进行测试，看看是否可以创建应用程序。如果我发现这太难创建，我会放弃这个项目。我这样问是因为如果这是一个简单的解决办法，我很接近，那么我希望看到它通过。谢谢你的帮助

主要活动

package com.rocklandrecycles.rcsw.rcswwheredoirecycle;

import 安卓.content.Intent;
import 安卓.media.Image;
import 安卓.support.v7.app.ActionBarActivity;
import 安卓.os.Bundle;
import 安卓.view.Menu;
import 安卓.view.MenuItem;
import 安卓.view.View;
import 安卓.widget.AdapterView;
import 安卓.widget.ArrayAdapter;
import 安卓.widget.Button;
import 安卓.widget.EditText;
import 安卓.widget.ImageButton;
import 安卓.widget.ListAdapter;
import 安卓.widget.ListView;
import 安卓.widget.Toast;

import java.util.ArrayList;


public class MainActivity extends ActionBarActivity {

private ImageButton imagebutton1, imagebutton2, imagebutton3, imagebutton4, imagebutton5, imagebutton6;
private EditText SearchBox;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    imagebutton1 = (ImageButton)findViewById(R.id.metal_button);
    imagebutton2 = (ImageButton) findViewById(R.id.imageButton2);
    imagebutton3 = (ImageButton) findViewById(R.id.imageButton3);
    imagebutton4 = (ImageButton) findViewById(R.id.imageButton4);
    imagebutton5 = (ImageButton) findViewById(R.id.imageButton5);
    imagebutton6 = (ImageButton) findViewById(R.id.imageButton6);
    SearchBox = (EditText) findViewById(R.id.search_box);
String[] MetalList= {"metal", "metal cans", "aluminum foil", "copper", "steel", "scrap metal",
                        "hangers", "aluminum can", "knife", "exercise equipment"};

    ListAdapter theAdapter = new ArrayAdapter<String>(this, 安卓.R.layout.simple_list_item_1,
            MetalList);

    ListView theListView = (ListView) findViewById(R.id.metal_list_view);

    theListView.setAdapter(theAdapter);
    theListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
ListView theListView = (ListView) findViewById(R.id.metal_list_view);

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            String MetalPicked = "Please put in Green Bin";
            Toast.makeText(MainActivity.this, MetalPicked, Toast.LENGTH_LONG).show();
        }
    });

}
 @Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}
public void onMetalButtonClick(View view) {

    Intent getmetalscreenIntent= new Intent(this,
            MetalScreen.class);

    final int result = 1;
    getmetalscreenIntent.putExtra("callingActivity", "Main Activity");
    getmetalscreenIntent.putExtra("MetalActivity" , "MetalList");
    startActivityForResult(getmetalscreenIntent, result);


}

}

显示

<application
    安卓:allowBackup="true"
    安卓:icon="@mipmap/ic_launcher"
    安卓:label="@string/app_name"
    安卓:theme="@style/AppTheme" >
    <activity
        安卓:name=".MainActivity"
        安卓:label="@string/app_name" >
        <intent-filter>
            <action 安卓:name="安卓.intent.action.MAIN" />

            <category 安卓:name="安卓.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity 安卓:name=".MetalScreen"
        安卓:label="MetalScreen"
        安卓:theme="@style/AppTheme"/>


</application>

金属屏

package com.rocklandrecycles.rcsw.rcswwheredoirecycle;

import 安卓.app.Activity;
import 安卓.content.Intent;
import 安卓.os.Bundle;
import 安卓.view.View;
import 安卓.widget.ListView;


public class MetalScreen extends Activity{
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

setContentView(R.layout.metal_layout);

    Intent activityThatCalled = getIntent();

    String previousActivity =      activityThatCalled.getExtras().getString("callingActivity");
    String previousActivity2 = activityThatCalled.getExtras().getString("MetalActivity");

    ListView callingActivityList = (ListView) findViewById(R.id.metal_list_view);


}

}

主要活动

<RelativeLayout    xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
xmlns:tools="http://schemas.安卓.com/tools"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:paddingBottom="@dimen/activity_vertical_margin"
安卓:paddingLeft="@dimen/activity_horizontal_margin"
安卓:paddingRight="@dimen/activity_horizontal_margin"
安卓:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.rcswwheredoirecyclethisproject.MainActivity"
安卓:gravity="top"
安卓:background="@drawable/recyclesymbol">


<LinearLayout
    安卓:layout_width="wrap_content"
    安卓:layout_height="wrap_content"
    安卓:orientation="horizontal"
    安卓:layout_below="@+id/LinearLayout2">

    <ImageButton
    安卓:id="@+id/metal_button"
    安卓:layout_width="50dp"
    安卓:layout_height="50dp"
    安卓:contentDescription="@string/content"
    安卓:text="@string/ImageButton1text"
        安卓:onClick="onMetalButtonClick"
        安卓:background="@drawable/metal_texture"
        安卓:maxHeight="10dp"
        安卓:maxWidth="10dp"
        安卓:cropToPadding="true"
        安卓:clickable="true"/>


    <ImageButton
    安卓:id="@+id/imageButton2"
    安卓:layout_width="50dp"
    安卓:layout_height="50dp"
    安卓:contentDescription="@string/content"
    安卓:text="@string/ImageButton2text"
        安卓:background="@drawable/biohazard"
        安卓:clickable="true"/>

  <ImageButton
    安卓:id="@+id/imageButton3"
    安卓:layout_width="50dp"
    安卓:layout_height="50dp"
    安卓:contentDescription="@string/content"
    安卓:text="@string/ImageButton3text"
      安卓:clickable="true"/>

  <ImageButton
    安卓:id="@+id/imageButton4"
    安卓:layout_width="50dp"
    安卓:layout_height="50dp"
    安卓:contentDescription="@string/content"
    安卓:text="@string/ImageButton4text"/>

  <ImageButton
    安卓:id="@+id/imageButton5"
    安卓:layout_width="50dp"
    安卓:layout_height="50dp"
    安卓:contentDescription="@string/content"
    安卓:text="@string/ImageButton5text"
      安卓:clickable="true"/>

    <ImageButton
    安卓:id="@+id/imageButton6"
    安卓:layout_width="50dp"
    安卓:layout_height="50dp"
    安卓:contentDescription="@string/content"
    安卓:text="@string/ImageButton6text"
        安卓:clickable="true"/>
</LinearLayout>

<LinearLayout
    安卓:layout_width="wrap_content"
    安卓:layout_height="wrap_content"
    安卓:orientation="horizontal"
    安卓:weightSum="5"
    安卓:id="@+id/LinearLayout2"
    安卓:layout_below="@+id/LinearLayout3">

    <EditText
        安卓:layout_width="200dp"
        安卓:layout_height="150dp"
        安卓:inputType="text"
        安卓:hint="@string/EditText"
        安卓:id="@+id/search_box"/>


</LinearLayout>

<LinearLayout
安卓:layout_width="wrap_content"
安卓:layout_height="wrap_content"
安卓:orientation="vertical"
安卓:id="@+id/LinearLayout3"
安卓:layout_centerHorizontal="true">

 <TextView
    安卓:layout_width="wrap_content"
    安卓:layout_height="wrap_content"
    安卓:text="RCSW Recycle"
     安卓:textSize="25sp"/>

 <TextView
    安卓:layout_width="wrap_content"
    安卓:layout_height="wrap_content"
    安卓:text="Where Do I Recycle This?"
     安卓:textSize="25sp"/>
</LinearLayout>
<requestFocus />
</RelativeLayout>

金属布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout  xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
安卓:layout_width="match_parent" 安卓:layout_height="match_parent">

<ListView
    安卓:layout_width="match_parent"
    安卓:layout_height="match_parent"
    安卓:orientation="vertical"
    安卓:layout_gravity="left"
    安卓:id="@+id/metal_list_view"
    安卓:padding="10dp">

</ListView>

</LinearLayout>

刺痛

<resources>
<string name="app_name">RCSW Where Do I Recycle</string>
<string name="content">Image</string>
<string name="menu_settings">Settings</string>
<string name="ImageButton1text">Metal</string>
<string name="ImageButton2text">Hazard</string>
<string name="ImageButton3text">Paper</string>
<string name="ImageButton4text">Glass</string>
<string name="ImageButton5text">Plastic</string>
<string name="ImageButton6text">Other</string>
<string name="EditText">Search Box</string>
<string name="action_settings">RCSWRecycle</string>
</resources>