Question

我不知道为什么，我的应用程序在被显示菜单时被停止。我会发布代码，如果有人可以帮助我，我会非常感激，因为我已经花了好几个小时试图解决这个问题。

就是菜单：

package com.example.thenewboston;

import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class Menu extends ListActivity{

    String classes[] = {"StartingPoint", "example1", "example2",
                    "example3", "example4", "example5", "example6"}; 

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setListAdapter(new ArrayAdapter<String>(Menu.this, android.R.layout.simple_list_item_1, classes));
    }

    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        String cheese = classes[position];
        try{
        Class ourClass = Class.forName("com.example.thenewboston." + cheese);
        Intent ourIntent = new Intent(Menu.this, ourClass);
        startActivity(ourIntent);
        }catch(ClassNotFoundException e){
            e.printStackTrace();
        }
    }

}

这是它起作用的启动（简介），但在此之后应用程序关闭：

package com.example.thenewboston;

import android.app.Activity;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;

public class Splash extends Activity{

    MediaPlayer ourSong;

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.splash);
        ourSong = MediaPlayer.create(Splash.this, R.raw.watersplash);
        ourSong.start();
        Thread timer = new Thread(){
            public void run(){
                try{
                    sleep(3000);
                }catch(InterruptedException e){
                    e.printStackTrace();
                }finally{
                    Intent menu = new Intent("com.example.thenewboston.MENU");
                    startActivity(menu);
                }
            }
        };
        timer.start();
    }

    protected void onPause() {
        super.onPause();
        ourSong.release();
        finish();
    }

}

android清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.thenewboston"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".StartingPoint"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="com.example.thenewboston.STARTINGPOINT" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name=".menu"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="com.example.thenewboston.MENU" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
    </application>

</manifest>

为什么我的应用停止了？

0 个答案: