活动之间传递数据

问题描述：

我有以下的code：

chart.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
    final String aux= (String) lt.getItemAtPosition(position);
        Intent myIntent = new Intent(infoList.this, tabList.class);
        startActivity(myIntent);
    }
});

我也有一个的ListView 。当我点击从的ListView项目我导航到另一个活动，显示了我该活动的信息。我怎么做？我希望这些信息对应于我点击的项目。

I also have a ListView. When I click on an item from that ListView I navigate to another activity that shows me the info for that activity. How do I do that? I want that info to correspond to the item I clicked.

答

下面是我在这种情况下做了，如果你不想只是通过一个ID后面：

Here is what I did in this situation, if you don't want to just pass an id back:

我所说的其他活动有这样的：

I call the other activity with this:

            Intent intent = new Intent(myapp, CreateExerciseActivity.class);
            intent.putExtra("selected_id", workout.getId());
            startActivityForResult(intent, CREATE_ACTIVITY);

我那么做

            Intent returnIntent = new Intent();
            returnIntent.putExtra("name", m.getName());
            returnIntent.putExtra("unit", m.getUnit());
            returnIntent.putExtra("quantity", m.getQuantity());
            if (getParent() == null) {
                setResult(Activity.RESULT_OK, returnIntent);
            } else {
                getParent().setResult(Activity.RESULT_OK, returnIntent);
            }
            finish();

所以，在这种情况下，我传递一个id，以获得来自用户的更多详细信息，然后我通过这些返回给调用活动，为了增加它，因为我不想保存此直到用户选择购买。

So, in this case I was passing in an id in order to get more details from the user, and then I pass those back to the calling activity, in order to add it, as I didn't want to save this until the user chooses to later.

所以，你需要做的 startActivityForResult ，以便让它能够返回数据。

So, you need to do startActivityForResult in order to have it able to return the data.

活动之间传递数据

相关推荐