notifyDataSetChanged();来源未找到例外

时间:2011-04-19 07:34:19

标签: java android google-api

我在windows 7 64bit下使用android 1.6 当我从扩展BaseAdapter的适配器对象调用notifyDataSetChanged()时,我得到了运行时异常

我尝试使用Eclipse调试器并发现主要活动试图调用此方法ZygoteInit $ MethodAndArgsCaller.run()行:842但是当它调用它时,会出现异常Source not found。

所以,如果有任何关系,我会感激不尽

and here is the code




    public class ViewTaskActivity extends ListActivity 
{
    private Button addButton;
    private TaskManagerApplication app;
    private TaskListadapter adapter;

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

        app =(TaskManagerApplication)getApplication();
        adapter = new TaskListadapter(app.getCurrentTasks(),this);
        setListAdapter(adapter);
    }

    @Override
    protected void onResume() {
        super.onResume();
        adapter.notifyDataSetChanged();;
    }

    private void setUpViews() {
        addButton = (Button)findViewById(R.id.add_button);
        addButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                Intent intent = new Intent(ViewTaskActivity.this , AddTaskActivity2.class);
                startActivity(intent);
            }
        });

    }
}

1 个答案:

答案 0 :(得分:1)

仔细查看日志。它命中Task.java中第25行的空指针。检查您的代码或在此处发布