Question

为什么在下面的代码课程没有传输？

        final List<Course> courses1 = db.findFiltered(String.format("day == %d ", 0),"startTime ASC");
        final ListView lv1 = (ListView) findViewById (R.id.sat);
         registerForContextMenu(lv1);   

        lv1.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position,
                    long id) {
                // TODO Auto-generated method stub
                Intent intent=new Intent(MainActivity.this, ShowDetailActivity.class);  
                Log.i("tagID",courses1.get(position).getCourseName());
                //displayed in LogCat
                intent.putExtra(".Course",courses1.get(position));
                startActivity(intent);
            }
        });

第二项活动中的代码：

    course = (Course) getIntent().getExtras().get(".Course");
    //or
    /*Bundle b = getIntent().getExtras();
    course = b.getParcelable(".Course");*/
    Log.i("tagID",course.getCourseName());
    //is not displayed in LogCat

请帮助请帮忙请帮忙

Answer 1

从一项活动转到其他活动

Intent intent = new Intent(activity1.this, activity2.class);
intent.putExtra("message", message);
startActivity(intent);

第二项活动oncreate

Bundle bundle = getIntent().getExtras();
String message = bundle.getString("message");

或

Intent intent = getIntent(); 
String get_value  = intent.getStringExtra("key");

更改

intent.putExtra(".Course",courses1.get(position));

由此

intent.putExtra(".Course",courses1.get(position).getCourseName())

putExtra或getExtras无效

1 个答案: