Question

我正在制作一个待办事项列表应用程序，现在我遇到了这个问题，我不知道如何解决它。任何人都可以帮助我。

这是我从LogCat获得的：

    01-30 12:12:59.044: W/dalvikvm(30917): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
01-30 12:12:59.114: E/AndroidRuntime(30917): FATAL EXCEPTION: main
01-30 12:12:59.114: E/AndroidRuntime(30917): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.todo/com.todo.Todo}: java.lang.ArrayIndexOutOfBoundsException
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.ActivityThread.access$2300(ActivityThread.java:125)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.os.Handler.dispatchMessage(Handler.java:99)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.os.Looper.loop(Looper.java:123)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.ActivityThread.main(ActivityThread.java:4627)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at java.lang.reflect.Method.invokeNative(Native Method)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at java.lang.reflect.Method.invoke(Method.java:521)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at dalvik.system.NativeStart.main(Native Method)
01-30 12:12:59.114: E/AndroidRuntime(30917): Caused by: java.lang.ArrayIndexOutOfBoundsException
01-30 12:12:59.114: E/AndroidRuntime(30917):    at com.todo.DatabaseHelper.GetAllItems(DatabaseHelper.java:140)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at com.todo.Todo.setupViews(Todo.java:61)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at com.todo.Todo.onCreate(Todo.java:25)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
01-30 12:12:59.114: E/AndroidRuntime(30917):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
01-30 12:12:59.114: E/AndroidRuntime(30917):    ... 11 more
01-30 12:17:59.188: I/Process(30917): Sending signal. PID: 30917 SIG: 9

我想问题就在这里：

private Button add,delete,search,exit;
    private Intent intent;
    private ListView listView;
    DatabaseHelper db;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        db=new DatabaseHelper(this);
        db.open();
        setupViews();
        db.close();

    }
    @Override
    public void onClick(View v) {
        switch (v.getId()) {
        case R.id.main_add_btn:
            //open activity to add item
            intent=new Intent(this, InsertItem.class);
            startActivity(intent);

            break;
        case R.id.main_delete_btn:
            //delete item
            break;
        case R.id.main_exit_btn:
            finish();
            break;

        }

    }
    private void setupViews(){
        add=(Button) findViewById(R.id.main_add_btn);
        delete=(Button) findViewById(R.id.main_delete_btn);
        search=(Button) findViewById(R.id.main_search_btn);
        exit=(Button) findViewById(R.id.main_exit_btn);
        add.setOnClickListener(this);
        delete.setOnClickListener(this);
        search.setOnClickListener(this);
        exit.setOnClickListener(this);
        listView=getListView();
//      int l=(int) intent.getLongExtra("userID", -1);      
        Log.v("test","tuja");
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_1, db.GetAllItems(1));
        Log.v("test","tuja2");
        setListAdapter(adapter);

    }
}

这是我的第一篇文章，如果我搞砸了什么就很抱歉

Answer 1

很明显，arrayindex超出绑定异常是在databasehelper类的GetAllItems方法中，并且很可能是由于cursor.getString（cursor.getColumnIndex（COLUMN_NAME））生成的;

但是，我建议您发布GetAllItems代码，以便我们为您提供帮助。

android db的麻烦

1 个答案: