com.commonsware.android.eventbus.lbm.EventLogFragment.java Source code

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Here is the source code for com.commonsware.android.eventbus.lbm.EventLogFragment.java

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/***
  Copyright (c) 2013 CommonsWare, LLC
  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  use this file except in compliance with the License. You may obtain   a copy
  of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
  by applicable law or agreed to in writing, software distributed under the
  License is distributed on an "AS IS" BASIS,   WITHOUT   WARRANTIES OR CONDITIONS
  OF ANY KIND, either express or implied. See the License for the specific
  language governing permissions and limitations under the License.
       
  From _The Busy Coder's Guide to Android Development_
http://commonsware.com/Android
 */

package com.commonsware.android.eventbus.lbm;

import android.annotation.SuppressLint;
import android.app.ListFragment;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.Locale;

public class EventLogFragment extends ListFragment {
    static final String EXTRA_RANDOM = "r";
    static final String EXTRA_TIME = "t";
    static final String ACTION_EVENT = "e";
    private EventLogAdapter adapter = null;

    @Override
    public void onActivityCreated(Bundle state) {
        super.onActivityCreated(state);

        setRetainInstance(true);
        getListView().setTranscriptMode(ListView.TRANSCRIPT_MODE_NORMAL);

        if (adapter == null) {
            adapter = new EventLogAdapter();
        }

        setListAdapter(adapter);
    }

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

        IntentFilter filter = new IntentFilter(ACTION_EVENT);

        LocalBroadcastManager.getInstance(getActivity()).registerReceiver(onEvent, filter);
    }

    @Override
    public void onPause() {
        LocalBroadcastManager.getInstance(getActivity()).unregisterReceiver(onEvent);

        super.onPause();
    }

    class EventLogAdapter extends ArrayAdapter<Intent> {
        DateFormat fmt = new SimpleDateFormat("HH:mm:ss", Locale.US);

        public EventLogAdapter() {
            super(getActivity(), android.R.layout.simple_list_item_1, new ArrayList<Intent>());
        }

        @SuppressLint("DefaultLocale")
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            TextView row = (TextView) super.getView(position, convertView, parent);
            Intent event = getItem(position);
            Date date = new Date(event.getLongExtra(EXTRA_TIME, 0));

            row.setText(String.format("%s = %x", fmt.format(date), event.getIntExtra(EXTRA_RANDOM, -1)));

            return (row);
        }
    }

    private BroadcastReceiver onEvent = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            adapter.add(intent);
        }
    };
}