当我完成 Activity 然后关闭 Activity 时，如何刷新 Activity？

Question

当我完成 Activity 然后关闭 Activity 时如何刷新 Activity？

我有两个Activity,

第一个是GroupInfoActivity，当用户在GroupPostActivity提交信息时，会完成GroupPostActivity然后返回GroupInfoActivity.

在 GroupInfoActivity 我设置了 onActivityResult

final int RESULT_CODE=101;

 @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(resultCode ==RESULT_CODE) {
            setResult(1,(new Intent()));
        }
    }

还有我设置的GroupPostActivity

final int RESULT_CODE=101;
Intent intent=new Intent(GroupPostActivity.this,GroupInfoActivity.class);
intent.putExtra("gid",getIntent().getStringExtra("gid"));
intent.putExtra("groupname",getIntent().getStringExtra("gname"));
setResult(RESULT_CODE, intent);
finish();

但是当我完成 GroupPostActivity 时，GroupInfoActivity 无法刷新并获取新数据。

哪里有问题？

我不想用startActivity(intent)这个方法，因为它更活泼

Answer 1

GroupInfoActivity

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if(resultCode ==RESULT_CODE) {

            if (data != null) {

                String gid = data.getStringExtra("gid");
                String groupname = data.getStringExtra("groupname");

                //refresh or do anything you want
            }
        }
    }

当我完成 Activity 然后关闭 Activity 时，如何刷新 Activity？

how can refresh Activity when I finish Activity then close Activity?

android

onactivityresult