无法将数据从活动传递到另一个

Question

我的第一个Activity调试会更正位置名称和地址的输出，但是第二个Activity会给我一个空值。有人会帮忙吗？

FirstActivity

mySavedListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Intent next = new Intent(MyDestination.this, MyLocationDetail.class);
        Bundle extra = getIntent().getExtras();
        String locationName = myList.get(position).getLocation_name();
        String address = myList.get(position).getAddress();
        extra.putString("extra_location", locationName);
        extra.putString("extra_address", address);

        Log.d(TAG, "name is " + locationName);
        Log.d(TAG, "address is "+ address);
        intent.putExtras(extra);
        startActivity(next);
    }
});

SecondActivity

Bundle b = getIntent().getExtras();
String locationName = b.getString("extra_location");
String address = b.getString("extra_address");
Log.d(TAG, "location "+locationName);

Answer 1

首先尝试获取意图：

Intent intent = getIntent();

然后：

string location = intent.getStringExtra("extra_location")

Answer 2

试一试：

String locationName = myList.getItemAtPosition(position).getLocation_name();String address = myList.getItemAtPosition(position).getAddress();