IntentFilter在Fragment中如何使用

来源：佚名编辑：佚名

2024-07-03 14:17:34

在Fragment中使用IntentFilter需要在Fragment的onCreateView()方法中注册IntentFilter，并在onDestroyView()方法中注销IntentFilter。以下是一个简单的示例：

public class MyFragment extends Fragment {

    private BroadcastReceiver receiver;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_my, container, false);

        IntentFilter filter = new IntentFilter();
        filter.addAction("com.example.MY_ACTION");

        receiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                // 处理接收到的广播
            }
        };

        getActivity().registerReceiver(receiver, filter);

        return view;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        getActivity().unregisterReceiver(receiver);
    }
}