Question

我有一个滑动菜单应用程序，并且想要添加一个新的项目块。我添加了它，但是当我运行我的应用程序时崩溃，日志显示此错误，我无法弄清楚原因。非常感谢!!!

这是我的：的 MainActivity.java

    package com.cngcnasaud.orar;



import android.app.Activity;
import android.content.Intent;
import android.content.res.Configuration;
import android.graphics.Color;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListView;

public class MainActivity extends Activity implements OnClickListener {

    private ListView mDrawerList;
    private DrawerLayout mDrawer;
    private CustomActionBarDrawerToggle mDrawerToggle;
    private String[] menuItems;


    private static final String TAG = "AudioDemo";
    private static final String isPlaying = "Media is Playing"; 
    private static final String notPlaying = "Media has stopped Playing"; 


    MediaPlayer player;
    Button playerButton;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_drawer);
        player = MediaPlayer.create(this, R.raw.gc);

        player.setLooping(false); // Set looping

        // Get the button from the view
        playerButton = (Button) this.findViewById(R.id.buttonmp);
        playerButton.setText(R.string.play_label);
        playerButton.setTextColor(Color.WHITE);
        playerButton.setOnClickListener((OnClickListener) this);












        // enable ActionBar app icon to behave as action to toggle nav drawer
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawer = (DrawerLayout) findViewById(R.id.drawer_layout);

        // set a custom shadow that overlays the main content when the drawer
        // opens
        mDrawer.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);

        _initMenu();
        mDrawerToggle = new CustomActionBarDrawerToggle(this, mDrawer);
        mDrawer.setDrawerListener(mDrawerToggle);
    }





        public void onClick(View v) {
            Log.d(TAG, "onClick: " + v);
            if (v.getId() == R.id.buttonmp) {
                playPause();
            }

    }




    private void demoPause() {
        // TODO Auto-generated method stub
        player.pause();
        playerButton.setText(R.string.play_label);

        Log.d(TAG, notPlaying);
}

    private void playPause() {
        // TODO Auto-generated method stub
        if(player.isPlaying()) {
          demoPause();
        } else {
          demoPlay();
        }   
    }

    private void demoPlay() {
        // TODO Auto-generated method stub
        player.start();
        playerButton.setText(R.string.stop_label);

        Log.d(TAG, isPlaying);
}




    private void _initMenu() {
        NsMenuAdapter mAdapter = new NsMenuAdapter(this);

        // Add Header
        mAdapter.addHeader(R.string.ns_menu_main_header);

        // Add first block

        menuItems = getResources().getStringArray(
                R.array.ns_menu_items);
        String[] menuItemsIcon = getResources().getStringArray(
                R.array.ns_menu_items_icon);

        int res = 0;
        for (String item : menuItems) {

            int id_title = getResources().getIdentifier(item, "string",
                    this.getPackageName());
            int id_icon = getResources().getIdentifier(menuItemsIcon[res],
                    "drawable", this.getPackageName());

            NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon);
            if (res==1) mItem.counter=0; //it is just an example...
            if (res==3) mItem.counter=0; //it is just an example...
            mAdapter.addItem(mItem);
            res++;
        }

        mAdapter.addHeader(R.string.ns_menu_main_header2);

        menuItems = getResources().getStringArray(
                R.array.ns_menu_items2);
        String[] menuItemsIcon1 = getResources().getStringArray(
                R.array.ns_menu_items_icon2);

        int res2 = 0;
        for (String item : menuItems) {

            int id_title = getResources().getIdentifier(item, "string",
                    this.getPackageName());
            int id_icon = getResources().getIdentifier(menuItemsIcon1[res2],
                    "drawable", this.getPackageName());

            NsMenuItemModel mItem = new NsMenuItemModel(id_title, id_icon);
            if (res2==1) mItem.counter=0; //it is just an example...
            mAdapter.addItem(mItem);
            res2++;
        }

        mDrawerList = (ListView) findViewById(R.id.drawer);
        if (mDrawerList != null)
            mDrawerList.setAdapter(mAdapter);

        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

    }


    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        mDrawerToggle.onConfigurationChanged(newConfig);
    }




    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        /*
         * The action bar home/up should open or close the drawer.
         * ActionBarDrawerToggle will take care of this.
         */
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }

        // Handle your other action bar items...
        return super.onOptionsItemSelected(item);
    }

    private class CustomActionBarDrawerToggle extends ActionBarDrawerToggle {

        public CustomActionBarDrawerToggle(Activity mActivity,DrawerLayout mDrawerLayout){
            super(
                mActivity,
                mDrawerLayout, 
                R.drawable.ic_drawer,
                R.string.ns_menu_open, 
                R.string.ns_menu_close);
        }

        @Override
        public void onDrawerClosed(View view) {
            getActionBar().setTitle(getString(R.string.ns_menu_close));
            invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
        }

        @Override
        public void onDrawerOpened(View drawerView) {
            getActionBar().setTitle(getString(R.string.ns_menu_open));
            invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
        }
    }

    private class DrawerItemClickListener implements ListView.OnItemClickListener {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            mDrawerList.setItemChecked(position, true);         
            mDrawer.closeDrawer(mDrawerList);
            if (position == 1) {
                Intent intent = new Intent(MainActivity.this, Istoric.class);
                startActivity(intent);
                mDrawer.closeDrawers();
            }
            else if (position == 2) {
                Intent intent2 = new Intent(MainActivity.this, Academicieni.class);
                startActivity(intent2);
                mDrawer.closeDrawers();
            }
            if (position == 3) {
                Intent intent3 = new Intent(MainActivity.this, Profesori.class);
                startActivity(intent3);
                mDrawer.closeDrawers();
            }
            if (position == 4) {
                Intent intent4 = new Intent(MainActivity.this, Elevi.class);
                startActivity(intent4);
                mDrawer.closeDrawers();
            }

            if (position == 5) {
                Intent intent5 = new Intent(MainActivity.this, ShowImageActivity.class);
                startActivity(intent5);
                mDrawer.closeDrawers();
            }
            if (position == 6) {
                Intent intent6 = new Intent(MainActivity.this, Medii.class);
                startActivity(intent6);
                mDrawer.closeDrawers();
            }
            if (position == 7) {
                Intent intent7 = new Intent(MainActivity.this, Despre.class);
                startActivity(intent7);
                mDrawer.closeDrawers();
            }
            if (position == 8) {
                Intent intent8 = new Intent(MainActivity.this, Feedback.class);
                startActivity(intent8);
                mDrawer.closeDrawers();
            }

        }



    }
        }

logcat的

03-18 20:44:45.243: E/AndroidRuntime(1273): FATAL EXCEPTION: main
03-18 20:44:45.243: E/AndroidRuntime(1273): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.cngcnasaud.orar/com.cngcnasaud.orar.MainActivity}: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.os.Handler.dispatchMessage(Handler.java:99)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.os.Looper.loop(Looper.java:137)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.ActivityThread.main(ActivityThread.java:5041)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at java.lang.reflect.Method.invokeNative(Native Method)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at java.lang.reflect.Method.invoke(Method.java:511)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at dalvik.system.NativeStart.main(Native Method)
03-18 20:44:45.243: E/AndroidRuntime(1273): Caused by: java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
03-18 20:44:45.243: E/AndroidRuntime(1273):     at com.cngcnasaud.orar.MainActivity._initMenu(MainActivity.java:160)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at com.cngcnasaud.orar.MainActivity.onCreate(MainActivity.java:72)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.Activity.performCreate(Activity.java:5104)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
03-18 20:44:45.243: E/AndroidRuntime(1273):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
03-18 20:44:45.243: E/AndroidRuntime(1273):     ... 11 more

谢谢!!!

编辑：

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

    <string-array name="ns_menu_items">
        <item>ns_menu_snippet1</item>
        <item>ns_menu_snippet2</item>
        <item>ns_menu_snippet3</item>
        <item>ns_menu_snippet4</item>
        <item>ns_menu_snippet5</item>
        <item>ns_menu_snippet6</item>
    </string-array>
    <string-array name="ns_menu_items2">
        <item>ns_menu_snippet21</item>
        <item>ns_menu_snippet22</item>
    </string-array>





    <array name="ns_menu_items_icon">
        <item>istorici</item>
        <item>academicienii</item>
        <item>orari</item>
        <item>orari</item>
        <item>orari</item>
        <item>orari</item>
    </array>


        <array name="ns_menu_items_icon2">
        <item>desprei</item>
        <item>feedbacki</item>
    </array>








    <array name="ns_menu_items_icon2">
        <item>ic_action_settings</item>

    </array>

</resources>

Answer 1

我认为

String[] menuItemsIcon2 = getResources().getStringArray(
                R.array.ns_menu_items_icon2);

int res2 = 0;
for (String item : menuItems) {

应该是

String[] menuItemsIcon2 = getResources().getStringArray(
                R.array.ns_menu_items_icon2);

int res2 = 0;
for (String item : menuItemsIcon2) {

在每个循环的第二个循环中，您希望循环遍历menuItemsIcon2数组的项目，menuItems似乎有更多menuItemsIcon2元素。

由于您在每次迭代时都会递增res2，因此您将超出menuItemsIcon2的范围。

Answer 2

检查menuitems和iconmenuitems中是否有相同数量的元素。这可能是错误的来源。

如何解决ArrayIndexOutOfBoundsException？

2 个答案: